Which trades command the highest acquisition multiples?
Fire & Life Safety tops the table at 20x EBITDA at the platform end, and Plumbing sits at the bottom at 2.4x for a small owner-operator shop. Ranked by the top of each trade’s range, which is the scaled-platform end. Ranges are what buyers paid in transactions, not appraisals.
Every row is sourced individually in the trade-by-trade section below. Full machine-readable dataset: valuation-multiples.json.
Why do two businesses in the same trade sell for different multiples?
Scale, and it is not a small effect. Across the 7 trades whose sources enumerate a full ladder, the top of the national-platform tier is a median 3.5x the bottom of the owner-operator tuck-in tier. Same trade, same work, repriced for size. This is computed from the tier tables below, not asserted.
Spread = top of the largest tier divided by the bottom of the smallest tier, from each trade’s tier table below. Computed by The Trade Economy Index from the cited tier data.
Trade by trade
Each trade’s range, its scale ladder where the sources enumerate one, and the consolidation picture behind the number. Where a source describes tiers in one sentence, that sentence is quoted verbatim so it can be checked against the original.
Fire & Life Safety
Fire & Life Safety businesses sell for 3x to 20x EBITDA. Published sources give a range for fire and life safety rather than a tier-by-tier ladder, so the band below is the full span across buyer types and company sizes. Transactions dated 2026.
Source: CT Acquisitions, Private Equity Fire & Life Safety: The 2026 Consolidation Report, Named Platforms, and Multiples (2026) · 2 independent sources
Fire & Life Safety company acquisition multiples expand significantly with company scale and recurring revenue mix: small project-only or install-heavy operators ($1M-$3M EBITDA) trade at 4.0x-5.0x EBITDA; mid-market operators ($5M-$20M revenue / $1M-$3M EBITDA) with strong contracted inspection, testing, and maintenance (ITM) revenue command 6.0x-9.0x EBITDA; platform-ready regional businesses ($3M-$10M EBITDA) with >50% recurring ITM and monitoring revenue trade at 8.0x-12.0x+ EBITDA; and large, scaled national platforms ($10M+ EBITDA) trade at 17.0x-20.0x EBITDA.
Who is buying in fire and life safety
Major active acquirers and PE platforms in the US Fire & Life Safety space include: (1) Pye-Barker Fire & Safety, backed by Leonard Green & Partners and Altas Partners (with minority backing from ADIA and GIC); (2) APi Group Corporation (NYSE: APG), a major publicly traded strategic acquirer; (3) Summit Companies / SFP Holding, backed by BDT & MSD Partners and BlackRock Long Term Private Capital; (4) Sciens Building Solutions, backed by Carlyle; (5) Bluejack Fire & Life Safety, launched as a multi-regional platform by Agellus Capital in 2025; and (6) Pavion, backed by Wind Point Partners.
Source: PE Hub (2025) and Capstone Partners - Security Solutions M&A Update (2026) ↗
Exit environment. The exit trend is heating up significantly. M&A deal activity in the Fire & Life Safety segment jumped 66.7% year-over-year in 2025 to 125 transactions (averaging roughly 50 deals per quarter), with private equity platform acquisitions increasing 33.3% YOY and private strategic acquisitions expanding 36.1% YOY. Consolidation momentum is expected to further accelerate into 2026 as newly created PE platform companies actively pursue add-on acquisitions.
Source: Capstone Partners, Security Solutions M&A Update (2026); CLA Meridian Capital, Fire & Life Safety M&A Market Update (2025)
Full data for this trade: Fire & Life Safety index page · JSON
Landscaping & Grounds
Landscaping & Grounds businesses sell for 3x to 12.2x EBITDA. Published sources give a range for landscaping rather than a tier-by-tier ladder, so the band below is the full span across buyer types and company sizes. Transactions dated 2025.
Source: First Page Sage, 'EBITDA Multiples for Private Landscaping Companies, Q1 2025' (2025) · 4 independent sources
Valuation multiples increase consistently with company size and earnings power. For full-service landscaping companies, average multiples are 8.0x for $500k-$1M EBITDA, 10.3x for $1M-$3M EBITDA, and 11.0x for $3M-$10M EBITDA. For commercial grounds management, average multiples scale from 9.9x ($500k-$1M EBITDA) to 11.1x ($1M-$3M EBITDA) and 12.2x ($3M-$10M EBITDA).
Who is buying in landscaping
Notable named PE platforms and public acquirers active in the landscaping roll-up space include: 1. Yellowstone Landscape: Large commercial landscaping PE platform majority-owned by Harvest Partners, with Neuberger Berman Capital Solutions acquiring a significant minority stake in December 2024. 2. Landscape Workshop: Route-based commercial grounds maintenance platform backed by Ares Management following a majority stake acquisition in May 2025. 3. Juniper Landscaping: Commercial landscaping platform backed by Bregal Partners, actively rolling up Sunbelt regional providers including Landscape Maintenance Professionals (Sept 2024) and Hilton Head Landscapes (May 2026). 4. Bland Landscaping: Commercial landscape maintenance platform recapitalized by Comvest Private Equity (Vesterra Capital) in December 2024, acquiring regional add-ons such as Koehn Outdoor (Jan 2025). 5. BrightView Holdings, Inc. (NYSE: BV): Public company and premier commercial landscaping platform serving as a key strategic consolidator nationwide (Form 10-K Annual Report filed Nov 2024).
Source: PE Hub (2024, 2025, 2026) []; SEC EDGAR / BrightView Holdings, Inc. Form 10-K (2024) []. ↗
Exit environment. Heating up. Deal activity and owner exit opportunities in 2026 are showing strong momentum after a mixed 2025. Acquisition interest has accelerated significantly, with 26% of surveyed landscape business owners reporting 6 to 10 buyer approaches per month in 2026, compared to just 8% in 2025. Strategic consolidators and PE-backed platforms are actively competing for both platform acquisitions and regional tuck-ins.
Source: Lawn & Landscape, 2026 State of the M&A Market Report (2026) ↗
Full data for this trade: Landscaping & Grounds index page · JSON
Low-Voltage & Security
Low-Voltage & Security businesses sell for 3x to 11.8x EBITDA, averaging 11.7x. Small owner-operator shops (sub-$2M) trade at 3x to 5x; scaled platforms ($3M-$10M+) reach 8x to 11.8x. Transactions dated 2026.
Source: Capstone Partners, 'Security Solutions M&A Update' (2026) ↗ · 3 independent sources
Valuation multiples have shown strong resilience, averaging 11.7x-11.8x EV/EBITDA and 2.2x-2.9x EV/Revenue, outperforming broader middle-market M&A benchmarks.
Valuation multiples vary significantly with business scale and revenue quality. Small, project-only low-voltage cabling contractors or sub-$2M EBITDA single-state integrators trade at 3.0x-5.0x EBITDA. Regional integrators generating $2M-$5M EBITDA with recurring service or monitoring revenue trade at 5.5x-8.5x EBITDA, while platform-grade middle-market security integration companies ($3M-$10M+ EBITDA) reach 8.0x-11.8x+ EBITDA.
Who is buying in low-voltage and security
Major private equity-backed platforms and public company acquirers actively rolling up the commercial low-voltage, security, and fire safety space include: (1) Pye-Barker Fire & Safety (backed by Altas Partners and Leonard Green & Partners, with ADIA and GIC acquiring minority stakes in 2025) - the leading U.S. commercial fire protection, security alarm, and low-voltage platform, completing 57 acquisitions in 2025 alone and over 64 total add-on deals (Altas Partners, 2025, https://www.altas.com/; PE Hub, 2024, https://www.pehub.com/); (2) Pavion (backed by Wind Point Partners) - an active platform for fire, security, critical communications, and commercial low-voltage installation services that has completed 19+ add-on acquisitions since 2020 (Wind Point Partners, 2023, https://www.wppartners.com/; PE Hub, 2023, https://www.pehub.com/); (3) Convergint Technologies (backed by Ares Management, Leonard Green & Partners, and Harvest Partners) - a global service-based systems integrator in security, life safety, and low-voltage building automation that has executed over 50 acquisitions (Leonard Green & Partners, 2021, https://www.leonardgreen.com/; Crain Currency, 2025, https://www.craincurrency.com/); (4) Sciens Building Solutions (backed by The Carlyle Group) - an integrated low-voltage, security, and fire detection platform executing aggressive regional bolt-on acquisitions nationwide (SDM Magazine, 2024, https://www.sdmmag.com/; Lincoln International, 2026, https://www.lincolninternational.com/); and (5) APi Group Corporation (NYSE: APG) - a publicly traded market-leading provider of safety and electronic security services that acquired Chubb Fire & Security for $3.1 billion in 2022 and continues active bolt-on M&A (SEC Filing, 2021, https://www.sec.gov/; APi Group, 2026, https://www.apigroupcorp.com/).
Source: Altas Partners (2025), Wind Point Partners (2023), PE Hub (2023/2024), Leonard Green & Partners (2021), SDM Magazine (2024), Lincoln International (2026), SEC Filings (2021), and APi Group Corporation Press Release (2026) ↗
Exit environment. The exit environment for business owners is heating up, reaching historic high activity levels. M&A deal volume in the sector grew 24.1% year-over-year in 2025 to a record high of 238-242 announced or completed transactions. Valuation multiples have shown strong resilience, averaging 11.7x-11.8x EV/EBITDA and 2.2x-2.9x EV/Revenue, outperforming broader middle-market M&A benchmarks.
Source: Capstone Partners & Security Sales & Integration, Security Solutions M&A Analysis (2026) ↗
Full data for this trade: Low-Voltage & Security index page · JSON
Painting & Wall Finishing
Painting & Wall Finishing businesses sell for 3x to 11x EBITDA. Small owner-operator shops (Sub-$1M) trade at 2x to 4x; scaled platforms ($3M+) reach 5x to 7x. Transactions dated 2026.
Source: First Page Sage, EBITDA & Valuation Multiples for Construction Companies - 2025 (2024) · 3 independent sources
The tier breakdown below runs 2x to 7x, extending below the bottom of the 3x to 11x headline range. The headline range is a median reconciled across several independent sources; the tier breakdown is a single named source's ladder. Both are reported as published rather than averaged together.
Sub-$1M EBITDA painting companies typically trade between 2.0x and 4.0x EBITDA; $1M to $3M EBITDA platforms sell for 4.0x to 6.0x EBITDA; and platform-quality painting companies with $3M+ EBITDA with strong commercial or HOA recurring revenue command 5.0x to 7.0x EBITDA.
Who is buying in painting
Notable public platforms and private equity-backed acquirers in the painting and wall finishing trade include: (1) FirstService Corporation (NASDAQ: FSV), a public platform operating FirstService Brands, which owns CertaPro Painters, the largest residential and commercial painting franchise platform in North America, and routinely completes franchisee buybacks and bolt-on acquisitions [FirstService Corporation SEC Form 6-K Filing, 2026, https://www.sec.gov]; (2) Neighborly (backed by KKR), a multi-brand home services platform that owns Five Star Painting, operating 230+ franchised territories across North America [Entrepreneur / Neighborly FDD Report, 2022, https://www.entrepreneur.com]; (3) R.L. James Exteriors (backed by Hidden Harbor Capital Partners), a commercial painting and exterior restoration platform that acquired Paramount Painting & Services, LLC in February 2026 [Hidden Harbor Capital Partners Press Release, 2026, https://www.hh-cp.com]; (4) Premium Service Brands (backed by Susquehanna Private Capital), a multi-brand franchise platform operating 360° Painting [Business Wire / Susquehanna Private Capital Press Release, 2021, https://www.businesswire.com]; and (5) Pilot Painting (backed by Platt Park Capital Partners and Source Capital), a commercial painting and reconstruction platform in the Southwest [Source Capital Press Release, 2024, https://www.source-cap.com].
Source: FirstService Corporation SEC Filing (2026) []; Hidden Harbor Capital Partners Press Release (2026) []; Susquehanna Private Capital Press Release / Business Wire (2021) []; Source Capital Press Release (2024) []; Entrepreneur Magazine (2022) []. ↗
Exit environment. The exit market is heating up as private equity consolidation and strategic roll-ups accelerate across painting contractors, following the consolidation path established by HVAC and plumbing trades. Because the industry remains highly fragmented, 75% of painting contractors employ 4 or fewer workers, institutional buyers are actively buying up middle-market operators, expanding franchise/chain revenue share from 22% in 2019 to 28.5% in 2025. High-quality trade businesses with stable cash flow maintain valuation multiples ranging from 2.7x cash flow to 4x EBITDA.
Source: CT Acquisitions (2026); BizBuySell Insight Report (2026); IBISWorld (2025) ↗
Full data for this trade: Painting & Wall Finishing index page · JSON
Restoration & Remediation
Restoration & Remediation businesses sell for 4x to 11x EBITDA. Small owner-operator shops (under $2M) trade at 4x to 6x; scaled platforms ($10M to $25M+) reach 8x to 11x. Transactions dated 2026.
Source: CT Acquisitions, 2026 · 3 independent sources
Disaster restoration companies under $2M EBITDA trade at 4x to 6x EBITDA as add-ons or franchise platform targets, companies generating $2M to $10M EBITDA command 6x to 8x EBITDA, and scaled commercial-weighted platforms generating $10M to $25M+ EBITDA reach 8x to 11x or higher.
Above the range: documented platform transactions to 12x. The range above describes privately held restoration and remediation contractors, and its sources sample the lower middle market. Large scaled platforms and institutional recapitalizations have printed materially higher. These are reported separately rather than folded into the range, because a business that is not a national platform should not price itself off one.
HighGround Restoration Group: Formed by Trivest Partners in 2020, HighGround completed 13 add-on acquisitions and expanded revenue 12x before being acquired/recapitalized by PE firm Knox Lane in March 2025 (Business Wire, 2025, https://www.businesswire.com; PE Hub, 2023, https://www.pehub.com). 2.
Who is buying in restoration and remediation
Key private equity platforms and public strategic acquirers driving restoration consolidation include: 1. HighGround Restoration Group: Formed by Trivest Partners in 2020, HighGround completed 13 add-on acquisitions and expanded revenue 12x before being acquired/recapitalized by PE firm Knox Lane in March 2025 (Business Wire, 2025, https://www.businesswire.com; PE Hub, 2023, https://www.pehub.com). 2. ATI Restoration: Backed by TSG Consumer Partners, ATI acquired 15 restoration companies between November 2020 and April 2024, including Venturi Restoration / Response Team 1 and Four Seasons Restoration (PE Stakeholder Project, 2024, https://pestakeholder.org; PitchBook, 2024, https://pitchbook.com). 3. BluSky Restoration Contractors: Jointly acquired by Partners Group and Kohlberg & Company in October 2021 (with Dominus Capital retaining a minority stake), BluSky acquired 10 regional restoration companies between December 2021 and December 2023, following prior additions such as HARBRO (Kohlberg & Co, 2021, https://www.kohlberg.com; PE Hub, 2020, https://www.pehub.com). 4. Cotton Holdings / Cotton Commercial USA: Backed by Sun Capital Partners (2020-2025), Cotton acquired regional provider 24 Restore in January 2024 (PE Stakeholder Project, 2024, https://pestakeholder.org). 5. FirstService Corporation (TSX/NASDAQ: FSV): Public strategic consolidator operating FirstOnSite Restoration and Paul Davis; acquired Global Restoration Holdings for $505 million in 2019 and Soundcore-backed Roofing Corp of America for $413 million in December 2023 (PE Hub, 2019/2023, https://www.pehub.com).
Source: Business Wire (2025), PE Hub (2019, 2020, 2023), Kohlberg & Company Press Release (2021), Private Equity Stakeholder Project (2024), PitchBook (2024), and FirstService Corporation Public Filings (2024/2026). ↗
Exit environment. The exit environment is heating up rapidly. Deal activity across environmental and restoration services is accelerating, with private strategic M&A transactions increasing to 25 deals YTD (up from 16 in the prior period) and PE platform/add-on acquisitions rising 23% to 33% YoY. This surge is propelled by seller demographics, 65% of restoration business owners are Baby Boomers with roughly 80% of their net worth tied to their companies, creating an unprecedented wave of founder succession exits into a highly fragmented, consolidating market.
Source: Capstone Partners (2025),; Restoration & Remediation Magazine (2025) ↗
Full data for this trade: Restoration & Remediation index page · JSON
HVAC & Refrigeration
HVAC & Refrigeration businesses sell for 3.4x to 10.9x EBITDA, averaging 9.5x. Small owner-operator shops (sub-$1M) trade at 3x to 5x; scaled platforms ($10M+) reach 9x to 13x. Transactions dated 2025-2026.
Source: First Page Sage, 'HVAC EBITDA & Valuation Multiples - 2025 Report' (2025) | Capstone Partners, 'HVAC Services M&A Update' (2026) ↗ · 2 independent sources
While valuation multiples have normalized from peak pandemic spikes to average around 9.5x EV/EBITDA (2.0x EV/Revenue) for mid-market transactions and 2.5x-5.0x SDE for smaller Main Street businesses, total deal flow remains elevated due to market fragmentation and an aging installed base of systems requiring replacement.
The tier breakdown below runs 3x to 13x, extending on both ends of the 3.4x to 10.9x headline range. The headline range is a median reconciled across several independent sources; the tier breakdown is a single named source's ladder. Both are reported as published rather than averaged together.
HVAC multiples scale significantly by company size and earnings tier: small tuck-ins and sub-$1M EBITDA operators trade at 3.0x-5.0x EBITDA; established contractors with $1M-$3M EBITDA range from 5.0x-7.5x EBITDA; multi-location platforms with $3M-$10M EBITDA command 7.0x-10.0x EBITDA; and large platform-grade businesses with $10M+ EBITDA achieve 9.0x-13.0x+ EBITDA.
Above the range: documented platform transactions to 19x. The range above describes privately held HVAC contractors, and its sources sample the lower middle market. Large scaled platforms and institutional recapitalizations have printed materially higher. These are reported separately rather than folded into the range, because a business that is not a national platform should not price itself off one.
Valuations remain elevated, with PE Hub (March 2026) reporting scaled residential HVAC roll-up platforms trading at 16x-19x EBITDA and commercial/industrial HVAC/R platforms trading at 10x-17x EBITDA.
Prominent PE-backed platforms driving HVAC & Refrigeration roll-up consolidation include: (1) Apex Service Partners (Alpine Investors / Apollo Global Management; Apollo made a strategic investment at a ~$10B EV in May 2026, with Apex closing ~60 add-ons in 2025 alone); (2) CoolSys (Ares Management; commercial and industrial refrigeration and HVAC platform with over 10 add-on acquisitions); (3) Wrench Group (Leonard Green & Partners; national home services platform combining residential HVAC, plumbing, and electrical providers); (4) Sila Services (Goldman Sachs Alternatives; $1.5B platform deal, acquiring over 35 regional HVAC brands); (5) Service Champions / Champions Group (acquired by Blackstone at a $2.5B EV / 18.5x EBITDA); and (6) Nextech (Audax Private Equity; commercial HVAC/R service platform across 40+ locations).
HVAC multiples scale significantly by company size and earnings tier: small tuck-ins and sub-$1M EBITDA operators trade at 3.0x-5.0x EBITDA; established contractors with $1M-$3M EBITDA range from 5.0x-7.5x EBITDA; multi-location platforms with $3M-$10M EBITDA command 7.0x-10.0x EBITDA; and large platform-grade businesses with $10M+ EBITDA achieve 9.0x-13.0x+ EBITDA.
Who is buying in HVAC
Prominent PE-backed platforms driving HVAC & Refrigeration roll-up consolidation include: (1) Apex Service Partners (Alpine Investors / Apollo Global Management; Apollo made a strategic investment at a ~$10B EV in May 2026, with Apex closing ~60 add-ons in 2025 alone); (2) CoolSys (Ares Management; commercial and industrial refrigeration and HVAC platform with over 10 add-on acquisitions); (3) Wrench Group (Leonard Green & Partners; national home services platform combining residential HVAC, plumbing, and electrical providers); (4) Sila Services (Goldman Sachs Alternatives; $1.5B platform deal, acquiring over 35 regional HVAC brands); (5) Service Champions / Champions Group (acquired by Blackstone at a $2.5B EV / 18.5x EBITDA); and (6) Nextech (Audax Private Equity; commercial HVAC/R service platform across 40+ locations).
Source: PE Hub (2026); PitchBook Data (2025); Capstone Partners (2026) ↗
Exit environment. The exit trend is heating up, with M&A deal volume exhibiting robust growth and outperforming the broader industrial market. Announced and completed HVAC services transactions reached 149 in 2025, representing a 12.9% year-over-year increase. While valuation multiples have normalized from peak pandemic spikes to average around 9.5x EV/EBITDA (2.0x EV/Revenue) for mid-market transactions and 2.5x-5.0x SDE for smaller Main Street businesses, total deal flow remains elevated due to market fragmentation and an aging installed base of systems requiring replacement.
Source: Capstone Partners HVAC Services M&A Sector Update (2025) and BizBuySell HVAC Business Transaction Trends (2025) ↗
Full data for this trade: HVAC & Refrigeration index page · JSON
Roofing
Roofing businesses sell for 2.5x to 10x EBITDA. Published sources give a range for roofing rather than a tier-by-tier ladder, so the band below is the full span across buyer types and company sizes. Transactions dated 2025-2026.
Source: Forbes Partners (2025) · 3 independent sources
Who is buying in roofing
Prominent PE platforms and acquirers actively consolidating the US roofing trade include: (1) Tecta America, majority-owned by Altas Partners with minority investment from Leonard Green & Partners, operating as the nation's largest commercial roofing platform with over 85 locations across 32 states (notable add-ons include J Reynolds & Co); (2) Rampart Exterior Services, launched in 2024 by Huron Capital as an ExecFactor platform, which acquired Independent Roofing Systems (2024), Port Enterprises (2025), and Colorado Moisture Control (2026); (3) Valor Exterior Partners, backed by Osceola Capital Management, which acquired Roofing King (March 2025), Kirkin Exteriors (July 2025), and Kingdom Krafters (2025); (4) Omnia Exterior Solutions, launched in May 2023 by CCMP Growth Advisors, which scaled to 11 residential roofing partnerships across 22 states (including Brandon J Roofing, Great Roofing, and James & Whitney Company); and (5) Ridgeline Roofing & Restoration, backed by Bertram Capital and Everberg Capital, which acquired Signature Exteriors and Bold North Roofing in 2025.
Source: PE Hub (2021, 2024, 2025, 2026); PitchBook (2025); Buyouts / PEI Group (2023) ↗
Exit environment. Heating up. Exit trends in the US roofing sector remain near all-time high activity levels. Active private equity-backed roofing platforms tripled from 17 in early 2023 to 56 by late 2024 (a 229% increase), with aggressive platform formation and add-on acquisition cadence persisting through 2025 and 2026. While buyers have shown increased diligence around integration, normalizing valuation multiples to sustainable 6x-10x EBITDA ranges for platform-quality assets, independent owners face an extraordinarily receptive exit market with multiple competing buyer types.
Source: KPMG Corporate Finance, Roofing Contracting: M&A Market Update (2026),; Anchor Peabody, The M&A Market for Roofing Companies (2024/2025),; Hyde Park Capital, Roofing M&A Environment and Consolidation (2025) ↗
Full data for this trade: Roofing index page · JSON
Doors & Access
Doors & Access businesses sell for 3.5x to 9x EBITDA. Small owner-operator shops (under $3M) trade at 4x to 6x; scaled platforms (over $10M) reach 7x to 9x. Transactions dated 2026.
Source: CT Acquisitions, Garage Door Business Valuation (2026) - ↗ · 3 independent sources
Acquisition multiples scale directly with business size and earnings profile: commodity door and building products manufacturers generating under $3M in EBITDA typically trade between 4x and 6x EBITDA; niche, spec-driven door and access businesses with $3M to $10M in EBITDA trade between 6x and 8x EBITDA; and branded or platform-grade companies generating over $10M in EBITDA command 7x to 9x+ EBITDA.
Above the range: documented platform transactions to 16x. The range above describes privately held door and access contractors, and its sources sample the lower middle market. Large scaled platforms and institutional recapitalizations have printed materially higher. These are reported separately rather than folded into the range, because a business that is not a national platform should not price itself off one.
Valuations for scaled platforms have reached historic highs (ranging from 12x to 16x EBITDA), driven by non-discretionary repair and maintenance demand, strong EBITDA margins, and expansion into dock equipment and integrated access controls.
Notable PE platforms and public-company acquirers operating in the US Doors & Access trade include: (1) Guild Garage Group - backed by Oak Hill Capital following an $800M+ acquisition in April 2026 (~16x EBITDA multiple), having completed over 25 add-ons; (2) DuraServ - acquired by Leonard Green & Partners in 2024 at a high-teens EBITDA multiple; (3) US Dock & Door - backed by Soundcore Capital Partners (formed in September 2023; acquired Garage Headquarters in 2025 and 5+ add-ons); (4) GarageCo Holdings - backed by Gridiron Capital (formed in March 2024); (5) North American Door & Dock - formed by Guardian Capital Partners in June 2024; (6) The Cook & Boardman Group - backed by Platinum Equity and Littlejohn & Co.
Capstone Partners (2026, https://www.capstonepartners.com) highlights a 24.1% YOY surge in M&A volume entering 2026, while Lincoln International (2026, https://www.lincolninternational.com) notes that facilities services and commercial security M&A remain strong with valuation trading multiples averaging 15.6x EV/EBITDA, supported by record private capital dry powder and mission-critical cash flows.
According to Capstone Partners (2026, https://www.capstonepartners.com), sector deal volume surged 24.1% year-over-year in 2025 to 242 transactions, with private equity add-ons representing 45.9% of dealmaking and average industry EBITDA multiples reaching 11.8x.
Who is buying in door and access
Notable PE platforms and public-company acquirers operating in the US Doors & Access trade include: (1) Guild Garage Group - backed by Oak Hill Capital following an $800M+ acquisition in April 2026 (~16x EBITDA multiple), having completed over 25 add-ons; (2) DuraServ - acquired by Leonard Green & Partners in 2024 at a high-teens EBITDA multiple; (3) US Dock & Door - backed by Soundcore Capital Partners (formed in September 2023; acquired Garage Headquarters in 2025 and 5+ add-ons); (4) GarageCo Holdings - backed by Gridiron Capital (formed in March 2024); (5) North American Door & Dock - formed by Guardian Capital Partners in June 2024; (6) The Cook & Boardman Group - backed by Platinum Equity and Littlejohn & Co. (distributor and integrator of commercial doors and electronic access control); (7) Guardian Access Solutions - backed by CenterOak Partners (acquired in September 2023); (8) Dillard Companies - backed by Shore Capital Partners (partnered in August 2025); and (9) Nucor Corporation (NYSE: NUE) / C.H.I. Overhead Doors - acquired by public manufacturer Nucor from KKR in June 2022 for $3.0B.
Source: PitchBook (2026) 'PE hopes garage door roll-ups will be the new HVAC'; PE Hub (2024) '5 PE deals in door manufacturing and servicing'; Business Wire / Guardian Capital Partners Press Release (2024) 'Guardian Capital Partners Announces Formation of North American Door & Dock'; PE Professional (2025) 'Soundcore Continues US Dock & Door Build'; Shore Capital Partners Press Release (2025) 'Shore Capital Partners Partners with Dillard Companies' ↗
Exit environment. The exit trend for US Doors & Access business owners is heating up rapidly. Industry consolidation has accelerated with over 10 private-equity-backed platform formations established since 2022, such as Guild Garage Group (25+ acquisitions) and GarageCo Holdings / Gridiron Capital, and more than 30 add-on transactions executed across residential and commercial door services (FMI Corporation, 2025, https://www.fmicorp.com). Capstone Partners (2026, https://www.capstonepartners.com) highlights a 24.1% YOY surge in M&A volume entering 2026, while Lincoln International (2026, https://www.lincolninternational.com) notes that facilities services and commercial security M&A remain strong with valuation trading multiples averaging 15.6x EV/EBITDA, supported by record private capital dry powder and mission-critical cash flows.
Source: Capstone Partners (2026); FMI Corporation (2025); Lincoln International (2026) ↗
Full data for this trade: Doors & Access index page · JSON
Electrical
Electrical businesses sell for 3.5x to 8.5x EBITDA, averaging 6.2x. Published sources give a range for electrical contracting rather than a tier-by-tier ladder, so the band below is the full span across buyer types and company sizes. Transactions dated 2025.
Source: Auxo Capital Advisors (2026), reporting high-end EBITDA multiples of 8.5x+ for scaled platform companies and strategic add-ons; cross-checked with GF Data / BMI Mergers & Acquisitions (2025), reporting averages of 7.8x-8.0x+ EBITDA for larger electrical platforms. ↗ · 2 independent sources
Valuations remain strong, averaging 6.2x-7.8x EBITDA for lower-middle-market businesses and reaching 9.0x-10.8x EBITDA for larger platform and data-center specialized targets.
According to GF Data figures cited by BMI Mergers, valuation multiples increase significantly with company size: smaller electrical contracting acquisitions ($3 million to $8 million in EBITDA) average 6.2x to 6.4x EBITDA, whereas larger deals ($8 million+ EBITDA) command an average multiple of 7.8x EBITDA. Across the broader trade, smaller or less attractive shops tend to sell for 5.0x EBITDA or less, while larger, more attractive platforms reach 8.0x EBITDA or higher.
Above the range: documented platform transactions to 20x. The range above describes privately held electrical contracting contractors, and its sources sample the lower middle market. Large scaled platforms and institutional recapitalizations have printed materially higher. These are reported separately rather than folded into the range, because a business that is not a national platform should not price itself off one.
According to PE Hub (2025, https://www.pehub.com), consolidation intensity is particularly strong in electrical power infrastructure, grid services, and technical electrical contracting, where secular tailwinds from AI data center buildouts and power grid modernization have driven exit valuations up to 16x-20x EBITDA.
PE buyers accounted for 38.3% of all sector deals in 2025, up 181.6% since 2018, with sector EBITDA multiples averaging 13.2x EV/EBITDA.
Valuations remain strong, averaging 6.2x-7.8x EBITDA for lower-middle-market businesses and reaching 9.0x-10.8x EBITDA for larger platform and data-center specialized targets.
Who is buying in electrical contracting
Notable private equity platforms and public company acquirers actively rolling up US electrical contractors and power service providers include: (1) Shermco Industries, acquired by Blackstone Energy Transition Partners from Gryphon Investors in August 2025 for $1.6B as an electrical power testing, inspection, and maintenance platform (PE Hub, 2025, https://www.pehub.com; Axios Pro, 2025, https://www.axios.com); (2) Apex Service Partners, backed by Alpine Investors, which has grown into a major multi-trade roll-up platform with ~$1.3B in annual revenue covering residential/commercial HVAC, plumbing, and electrical services (CT Acquisitions, 2026, https://www.ctacquisitions.com); (3) Champions Group, acquired by Blackstone via its BXPE fund in February 2026 for ~$2.5B enterprise value as an electrical, plumbing, and HVAC services platform (CT Acquisitions, 2026, https://www.ctacquisitions.com); (4) Norlee Group, backed by Heartwood Partners, an electrical and mechanical design platform that acquired Tampa-based Inter-Bay Electric Company in November 2025 (PE Hub, 2025, https://www.pehub.com); (5) Bowe & Gant Electrical Services, which secured a majority growth investment from Greenbelt Capital Management in July 2026 for electrical and energy infrastructure services (PE Hub, 2026, https://www.pehub.com); and (6) MYR Group Inc. (NASDAQ: MYRG), a public strategic consolidator acquiring regional commercial electrical contractors (Main Street Wealth / MYR Group, 2025, https://www.myrgroup.com).
Source: PE Hub (2025/2026); Axios Pro (2025); CT Acquisitions PE Trackers (2026) ↗
Exit environment. The exit trend for US electrical business owners is heating up, characterized by accelerating deal flow and rising private equity participation. In 2025, M&A volume in the subcontractor segment increased 38.6% year-over-year to 366 deals, with private equity M&A rising 30.9% year-over-year to 305 transactions, marking the first time financial buyers represented the majority (54.3%) of sector transactions. Valuations remain strong, averaging 6.2x-7.8x EBITDA for lower-middle-market businesses and reaching 9.0x-10.8x EBITDA for larger platform and data-center specialized targets.
Source: Capstone Partners, Construction Services Market Update (2026)
Full data for this trade: Electrical index page · JSON
Glass & Glazing
Glass & Glazing businesses sell for up to 7.1x EBITDA. Published sources give a range for glass and glazing rather than a tier-by-tier ladder, so the band below is the full span across buyer types and company sizes. Transactions dated 2025-2026.
Source: GF Data (NAICS 238 Specialty Trade Contractors cohort, $50M-$100M TEV band) cited in CT Acquisitions Commercial Glazing Business Valuation Guide (2026): · 2 independent sources
Acquisition EBITDA multiples for US glass and glazing businesses increase significantly with enterprise value (TEV) and scale. Small local contractors typically transact at 2.92x to 4.24x EBITDA. Larger specialty trade contractors average 5.7x EBITDA at $10M to $25M TEV, 6.1x at $25M to $50M TEV, and 7.1x at $50M to $100M TEV per GF Data NAICS 238 benchmarks, while platform-scale building products and construction M&A transactions reach median multiples of 10.93x TEV/EBITDA per PCE Investment Bankers.
Above the range: documented platform transactions to 10.93x. The range above describes privately held glass and glazing contractors, and its sources sample the lower middle market. Large scaled platforms and institutional recapitalizations have printed materially higher. These are reported separately rather than folded into the range, because a business that is not a national platform should not price itself off one.
Larger specialty trade contractors average 5.7x EBITDA at $10M to $25M TEV, 6.1x at $25M to $50M TEV, and 7.1x at $50M to $100M TEV per GF Data NAICS 238 benchmarks, while platform-scale building products and construction M&A transactions reach median multiples of 10.93x TEV/EBITDA per PCE Investment Bankers.
Who is buying in glass and glazing
Prominent private equity platforms and acquirers actively consolidating the US glass and glazing trade include: (1) Oldcastle BuildingEnvelope (OBE), a platform acquired by private equity firm KPS Capital Partners from CRH plc for $3.45 billion in 2022. OBE has aggressively rolled up regional fabricators, including Syracuse Glass Company in June 2023 and Midwest Glass Fabricators in February 2024. (2) Binswanger Glass, acquired by operationally focused private equity firm Transom Capital Group in November 2025 to accelerate growth across its 42 full-service glazing locations. (3) Trulite Glass & Aluminum Solutions, a private equity platform backed by Sun Capital Partners, which acquired American Insulated Glass (AIG) and AGC's U.S. commercial fabrication assets, expanding its network to over 42 North American facilities. (4) Custom Glass Solutions (CGS), a platform owned by private equity firm Stellex Capital Management, which acquired North American Specialty Glass (NASG) to expand its engineered glass and framed assembly capabilities.
Source: Transom Capital Group (2025), 'Transom Acquires Binswanger Glass',; KPS Capital Partners (2024), 'KPS Portfolio Company Oldcastle BuildingEnvelope Completes Acquisition of Midwest Glass Fabricators',; Lincoln International (2023), 'Lineage Capital has sold Syracuse Glass Company to Oldcastle BuildingEnvelope',; Glass Magazine (2024), 'Trulite Acquires American Insulated Glass',; Business Wire / Stellex Capital Management (2024), 'Custom Glass Solutions Establishes Upper Sandusky as New Corporate HQ' ↗
Exit environment. The exit trend is heating up and accelerating. High market fragmentation, rising operational complexity, owner retirement transitions, and private equity dry powder are driving an accelerated wave of M&A consolidation across contract glazing and glass fabrication businesses.
Source: TM Capital, 'Glass Fabrication & Glazing Services Market Trends: Insights & Opportunities Report' (2026),; Glass Magazine / NGA Glass Cast, 'Planning Your Exit: REAG CEO, Scott Mashuda on Why Glass Fabricators Can't Afford to Wait' (2026) ↗
Full data for this trade: Glass & Glazing index page · JSON
Commercial Cleaning & Janitorial
Commercial Cleaning & Janitorial businesses sell for 3.5x to 7x EBITDA. Small owner-operator shops (sub-$500K) trade at 2x to 3.5x; scaled platforms ($10M+) reach 7x to 12x. Transactions dated 2025-2026.
Source: Home Services Business Valuation Report (citing BizBuySell Insight Report, Pepperdine Private Capital Markets Survey, IBBA Market Pulse, DealStats), 2025 ↗ · 3 independent sources
The tier breakdown below runs 2x to 12x, extending on both ends of the 3.5x to 7x headline range. The headline range is a median reconciled across several independent sources; the tier breakdown is a single named source's ladder. Both are reported as published rather than averaged together.
Multiples increase significantly with enterprise size and EBITDA scale: sub-$500K SDE owner-operator shops trade at 2.0x-3.5x SDE; $500K-$2M EBITDA mid-market office and janitorial operators trade at 4.0x-6.0x EBITDA; $2M-$10M EBITDA multi-market regional or specialty industrial cleaning businesses trade at 5.0x-8.0x EBITDA; and $10M+ EBITDA national platforms command 7.0x-12.0x EBITDA.
Above the range: documented platform transactions to 12x. The range above describes privately held commercial cleaning contractors, and its sources sample the lower middle market. Large scaled platforms and institutional recapitalizations have printed materially higher. These are reported separately rather than folded into the range, because a business that is not a national platform should not price itself off one.
Multiples increase significantly with enterprise size and EBITDA scale: sub-$500K SDE owner-operator shops trade at 2.0x-3.5x SDE; $500K-$2M EBITDA mid-market office and janitorial operators trade at 4.0x-6.0x EBITDA; $2M-$10M EBITDA multi-market regional or specialty industrial cleaning businesses trade at 5.0x-8.0x EBITDA; and $10M+ EBITDA national platforms command 7.0x-12.0x EBITDA.
Who is buying in commercial cleaning
Notable PE platforms and public consolidators in commercial cleaning and janitorial services include: (1) 4M Building Solutions / 4M Building Services - Backed by O2 Investment Partners, an active commercial janitorial platform that completed its 15th and 16th add-on acquisitions (Bluegrass Commercial Cleaning and Rainbow Maintenance Services) in July 2026. (2) Kleen-Tech Services - Backed by Rainier Partners (acquired September 2025), a national janitorial platform operating across 30+ states under 9 regional brands executing bolt-on growth. (3) The Facilities Group - Backed by Greenbriar Equity Group and Revolent Capital Solutions (with Morgan Stanley Private Credit), an active roll-up platform acquiring regional commercial cleaning firms nationwide. (4) Kellermeyer Bergensons Services (KBS) - Backed by KKR, Ares Management, BlackRock, and formerly Cerberus Capital Management, operating as one of North America's largest tech-enabled commercial janitorial platforms across 100,000+ customer locations. (5) Public Consolidators - ABM Industries Inc. (NYSE: ABM) and GDI Integrated Facility Services Inc. (TSX: GDI).
Source: PE Hub (2026), 'O2-backed 4M acquires Bluegrass Commercial Cleaning and Rainbow Maintenance Services'; PE Hub (2025), 'Janitorial services provider Kleen-Tech snags investment from Rainier Partners'; PE Hub (2022), 'PE-backed The Facilities Group acquires janitorial and facility maintenance firm Summit Service Group'; PitchBook (2026), 'Kellermeyer Bergensons Services Company Profile'. ↗
Exit environment. The exit environment is heating up. Driven by extreme market fragmentation (with the U.S. janitorial market estimated at $90B+ and top operators holding under 30% share) and founder retirements, M&A activity remains brisk. According to BizBuySell transaction data, median sale prices for cleaning and janitorial businesses surged 62.5% to $325,000 in 2025 compared to 2021 levels, with average SDE multiples rising from 2.0x to 2.3x (and larger platforms trading at 3.5x to 7.0x+ EBITDA). M&A advisory monitors project robust transaction volumes and consolidation runway to continue.
Source: BizBuySell Janitorial & Cleaning Service Business Transaction Trends (2025), CLA Meridian Capital Facility Maintenance and Janitorial Services Market Update (2025), and Caber Hill Advisors M&A Janitorial Outlook (2024) via CleanLink. ↗
Full data for this trade: Commercial Cleaning & Janitorial index page · JSON
Plumbing
Plumbing businesses sell for 2.4x to 7x EBITDA. Small owner-operator shops ($300K-$1M) trade at 2.4x to 4.5x; scaled platforms ($7M+) reach 6.5x to 8x. Transactions dated 2026.
Source: CT Acquisitions, Commercial & Residential Plumbing Valuation Benchmark Report (2026) ↗ · 2 independent sources
The tier breakdown below runs 2.4x to 8x, extending above the top of the 2.4x to 7x headline range. The headline range is a median reconciled across several independent sources; the tier breakdown is a single named source's ladder. Both are reported as published rather than averaged together.
EBITDA multiples scale directly with company size: small operations ($300K-$1M EBITDA) trade at 2.4x-4.5x; mid-tier businesses ($1M-$3M EBITDA) trade at 4.5x-5.5x; larger businesses ($3M-$7M EBITDA) trade at 5.5x-6.5x; and platform-quality candidates ($7M+ EBITDA) command 6.5x-8.0x+ EBITDA.
Above the range: documented platform transactions to 19x. The range above describes privately held plumbing contractors, and its sources sample the lower middle market. Large scaled platforms and institutional recapitalizations have printed materially higher. These are reported separately rather than folded into the range, because a business that is not a national platform should not price itself off one.
PE firms are executing buy-and-build strategies across multi-trade platforms (combining plumbing, HVAC, and electrical) to capture multiple arbitrage between low-multiple tuck-in add-ons (3x-8x EBITDA) and high-multiple platform-level recapitalizations (16x-19x EBITDA).
Notable PE platforms and recapitalization deals in the plumbing and home services trade include: (1) Apex Service Partners (backed by Alpine Investors and Apollo Global Management), the largest U.S. residential HVAC, plumbing, and electrical services platform operating 75 local brands across 46 states with over $3B in annual revenue, which announced a $2B minority investment from Apollo Funds in May 2026 valuing the platform at $10B; (2) Champions Group, a residential HVAC, plumbing, and electrical platform acquired by Blackstone (BXPE) in early 2026 for approximately $2.5B (~18.5x EBITDA); (3) Redwood Services (backed by Altas Partners), a residential HVAC and plumbing platform generating over $500M in annual revenue, which received a majority investment from Altas Partners in May 2025 valuing it at $1.1B; and (4) Sila Services, a home services platform acquired by Goldman Sachs Alternatives from Morgan Stanley Capital Partners in late 2024 at a reported valuation of ~$1.7B.
EBITDA multiples scale directly with company size: small operations ($300K-$1M EBITDA) trade at 2.4x-4.5x; mid-tier businesses ($1M-$3M EBITDA) trade at 4.5x-5.5x; larger businesses ($3M-$7M EBITDA) trade at 5.5x-6.5x; and platform-quality candidates ($7M+ EBITDA) command 6.5x-8.0x+ EBITDA.
Who is buying in plumbing
Notable PE platforms and recapitalization deals in the plumbing and home services trade include: (1) Apex Service Partners (backed by Alpine Investors and Apollo Global Management), the largest U.S. residential HVAC, plumbing, and electrical services platform operating 75 local brands across 46 states with over $3B in annual revenue, which announced a $2B minority investment from Apollo Funds in May 2026 valuing the platform at $10B; (2) Champions Group, a residential HVAC, plumbing, and electrical platform acquired by Blackstone (BXPE) in early 2026 for approximately $2.5B (~18.5x EBITDA); (3) Redwood Services (backed by Altas Partners), a residential HVAC and plumbing platform generating over $500M in annual revenue, which received a majority investment from Altas Partners in May 2025 valuing it at $1.1B; and (4) Sila Services, a home services platform acquired by Goldman Sachs Alternatives from Morgan Stanley Capital Partners in late 2024 at a reported valuation of ~$1.7B.
Source: Apollo Global Management Press Release ('Apex Service Partners and Alpine Investors Announce Strategic Minority Investment from Apollo Funds in Apex', 2026), PE Hub ('Apollo to acquire minority stake in residential HVAC firm Apex Service Partners', 2026), and HomePros News ('Apex Service Partners to receive minority investment at $10 billion valuation', 2026)
Exit environment. The exit environment for US plumbing business owners is heating up, driven by a historic generational transition and sustained institutional roll-up momentum (League Park Advisors, 2026, https://leaguepark.com/why-plumbing-companies-are-attracting-private-equity-buyers-right-now/). Thousands of baby-boomer founders who established plumbing companies in the 1980s and 1990s are reaching retirement age, colliding with record institutional capital seeking non-cyclical residential service providers (League Park Advisors, 2025). Market conditions remain a strong seller's market as acquirers actively bundle plumbing into multi-trade platforms alongside HVAC and electrical services (Breakwater M&A, 2026). Market studies from BizBuySell show accelerated business-for-sale deal activity, with 55% of surveyed owners confident they can achieve their desired price today and 60% choosing to exit now rather than risk market changes by waiting (BizBuySell, 2025, https://www.bizbuysell.com/insight-report/).
Source: League Park Advisors (2026); League Park Advisors (2025); Breakwater M&A (2026); BizBuySell (2025) ↗
Full data for this trade: Plumbing index page · JSON
Concrete & Masonry
Concrete & Masonry businesses sell for . Published sources give a range for concrete and masonry rather than a tier-by-tier ladder, so the band below is the full span across buyer types and company sizes. Transactions dated 2025-2026.
Acquisition multiples scale directly with business size and EBITDA tier: small/sub-$1M EBITDA concrete and masonry operators trade at 2.5x-4.0x SDE or ~3.0x EBITDA; lower-middle market specialty trade contractors ($1M-$5M EBITDA) command 4.0x-6.0x EBITDA; mid-sized platform contractors ($5M-$25M EBITDA) achieve 6.0x-8.0x EBITDA; and large national platform companies ($25M+ EBITDA) trade at 8.0x-12.0x+ EBITDA.
Who is buying in concrete and masonry
Notable PE platforms and public acquirers in the sector include: (1) Groundworks (backed by KKR and Cortec Group), a major residential foundation repair and concrete lifting platform actively acquiring regional concrete contractors; (2) Suncrete, Inc. / Concrete Partners Holding (backed by SunTx Capital Partners and Haymaker Acquisition Corp. 4, NASDAQ: RMIX), a ready-mix concrete logistics and distribution platform executing a Sunbelt roll-up strategy; (3) Sage Surface Partners / DACS Asphalt & Concrete (backed by Trinity Hunt Partners), a commercial paving, concrete, and surface maintenance platform; (4) PAX Services Group (backed by New State Capital Partners), a commercial roofing and building envelope platform that acquired Culbertson Company of Virginia to expand commercial masonry and restoration capabilities; (5) ReVamp Companies (backed by Bertram Capital), a national residential concrete coatings platform; (6) AK Masonry platform (acquired by Maddix Capital), a Utah-based masonry and concrete contractor platform; and (7) The Wells Companies (acquired by KPS Capital Partners), an architectural and structural precast concrete provider operating as an industrial platform.
Source: Cortec Group (2020) -; SunTx Capital Partners (2025) - Trinity Hunt Partners (2025) - PAX Services Group (2025) - PE Hub (2022, 2023, 2026) - ↗
Exit environment. The exit trend for concrete and masonry business owners is heating up, marked by rising transaction valuations and sustained deal volume. Capstone Partners (2026) reports that construction sector M&A expanded for its third consecutive year entering 2026, underpinned by record private equity sponsor activity and add-on transactions. BizBuySell (2026) transaction data shows a surge in median sale prices for concrete businesses, up 85% in 2025 compared to 2024, with average cash flow (SDE) multiples climbing above 3.0x as larger, higher-margin companies exit.
Source: Capstone Partners (2026), 'Construction M&A Expands for Third Consecutive Year in 2025',; BizBuySell (2026), 'Concrete Business Transaction Trends & Valuation Benchmarks' ↗
Full data for this trade: Concrete & Masonry index page · JSON
How fragmented are these markets?
Fragmentation is the precondition for the whole roll-up thesis: when the four largest firms hold a low single-digit share of a market, a buyer can build a platform by acquisition instead of by competing. Share of market held by the top four firms, per trade, lowest concentration first.
How these numbers were sourced, and what they do not tell you
Each numeric multiple was researched independently across multiple passes against named M&A advisory, transaction-database, and public-filing sources, then reconciled to a median with its independent-source count and confidence tier. Scale tiers are parsed from the source sentence that enumerates them and each tier keeps that sentence; trades whose sources do not enumerate a ladder publish a range only. Figures whose only citation could not be resolved were dropped rather than published.
Per-trade acquisition multiples for privately held U.S. trade contractors, with the scale ladder each source describes (owner-operator tuck-in through national platform), the fragmentation that drives roll-up demand, and named acquirers. Every figure carries the citation it was researched under. Multiples are ranges paid in transactions, not appraisals, and a specific business can fall outside its trade range on customer concentration, owner dependence, or recurring-revenue mix.
What this does not tell you. A multiple is applied to an earnings number, and for most trade contractors that earnings number is the contested part. Job costing that misallocates labor, work in progress that is not tracked, and owner compensation that has never been normalized all move adjusted EBITDA before any multiple is applied, and a buyer will recompute it in diligence. Two shops with identical revenue can carry very different defensible EBITDA. For the operating side of that, see Level CFO’s contractor financial benchmarks (margin, DSO, and gross profit per labor hour by trade), which is the input side of the multiples on this page. Level CFO publishes this index and advises contractors in several of these trades, and says so plainly on the about page.
Machine-readable: valuation-multiples.json · all data & downloads · llms.txt · Published under CC BY 4.0, free to cite with attribution.