Largest Electrical Contractors in the US: A Sourced Ledger of 2025 Revenue and Ownership

Largest US electrical contractors by disclosed 2025 electrical revenue

Checked Checked quarterly against 10-K and 10-Q filings and each spring and autumn when EC&M and ENR publish their lists. Last checked 2026-10-27. Entries are neutral records of public data; each links to its source record.

The 25 largest electrical contractors in the US, ranked by disclosed 2025 revenue

Quanta Services leads by a wide margin, and seven of the top 10 are public. Public figures come from audited 10-K segment tables; private figures are self-reported to a trade survey, so the two halves of the ledger carry different evidence levels.

The ledger above ranks 25 firms by the electrical revenue each one disclosed for 2025. For public companies the figure is the electrical segment in the latest 10-K. For private firms it is the 2025 sales figure the firm reported to EC&M's 2026 Top 50 Electrical Contractors survey, the only public revenue figure most of them give.

No. 1 Quanta Services reported $23,001.5 million in Electric segment revenue for fiscal 2025. No. 25 The State Group reported $851.0 million. The gap between the two is a factor of about 27.0, and every firm in the ledger is far above the industry's average firm, which had $3.11 million of receipts in 2022.

Public contractors: Quanta's Electric segment alone earned $23.0 billion in 2025

Eight public companies disclose an electrical revenue figure in their 10-Ks. Growth was fastest where acquisitions added electrical firms: EMCOR rose 51.8% and Comfort Systems 61.9%.

Each company defines its own segments, so the figure counted differs by company. Quanta's Electric Infrastructure Solutions segment covers grid, generation and large-load work and was 80.8% of Quanta's $28,479.7 million in 2025 revenue (10-K). EMCOR's electrical segment was 29.9% of its $16,986.4 million, and Comfort Systems' Electrical segment was 26.7% of $9,101.6 million.

Electrical segment revenue: The revenue a public company reports for the business segment that performs electrical construction and service, as defined in its 10-K. It is not the same as Census NAICS 238210 receipts, which exclude utility power line construction (NAICS 237130).

Three figures need care. IES Holdings reports no single electrical segment, so the ledger adds its five electrical lines to $2,645.2 million and leaves out $726.3 million of plumbing, HVAC and manufacturing revenue; IES reported $2.95 billion to EC&M on its own basis. Everus is counted at its consolidated $3,746.4 million because its E&M segment mixes electrical with mechanical and fire suppression work. MasTec's Power Delivery segment also includes gas distribution lines.

Primoris, Dycom and Sterling all do electrical work but are not ranked. Primoris reports a Utilities segment of $2,691.7 million that combines power delivery, gas and communications. Dycom's new Building Systems segment, formed after it bought Power Solutions, recorded $95.8 million in fiscal 2026, covering only the period after the acquisition in the fourth quarter of that year.

Private electrical contractors disclose survey revenue and rankings, not audited accounts

The largest private firms publish rankings and self-reported sales, and only some say who owns them. ENR's electrical ranking is behind a paywall, so this ledger relies on EC&M's free table and the firms' own statements.

Rosendin reported $5.5 billion in 2025 sales and describes itself as the largest employee-owned electrical contractor (Rosendin). M.C. Dean ($2.46 billion), MMR Group ($2.44 billion) and Faith Technologies Incorporated ($2.28 billion) follow. MMR confirmed its No. 8 EC&M rank in its own release dated September 2, 2026 (MMR Group).

EC&M's list is a survey: public companies such as MasTec, Comfort Systems, Centuri and Primoris do not appear on it, which is why this ledger adds them from their 10-Ks. EC&M's figures for the public firms that did respond are close to their filings: EC&M lists Quanta at $23.0 billion and EMCOR at $5.1 billion, against 10-K segment figures of $23.0 billion and $5.07 billion.

ENR's 2026 Top 600 Specialty Contractors list, which covers all trades, reports list revenue of $275.1 billion for 2025, up 14.7%, and its free preview names Quanta Services and EMCOR as Nos. 1 and 2. MYR Group's own release reports that it ranked No. 4 on ENR's 2025 Top 50 Firms in Electrical, a list based on 2024 revenue. No firm release giving a 2026 ENR electrical rank was found.

Eight of the top 25 are public, and five changed ownership since 2024

Public companies hold 62.0% of top 25 revenue. Employee ownership, family ownership, private equity and a community foundation account for the rest of the identified owners.

Five ownership changes since January 2024 touch firms in the top 25: Centuri's IPO (April 2024) and Southwest Gas Holdings' later full exit, the agreement to sell ArchKey to an affiliate of 26North Partners (September 2024), Everus' spin-off from MDU Resources (October 2024), Apollo funds' majority stake in The State Group (November 2024) and the Baton Rouge Area Foundation's ownership of The Newtron Group (April 2026).

Cross-checking the top 25 against the 32 deals in our electrical contractor acquisitions ledger finds no top 25 firm listed as a target. Eight of the top 25 appear there as buyers, in 12 deals; Comfort Systems USA alone made four. Several former large independents now sit inside these companies, such as Cupertino Electric (Quanta) and Miller Electric (EMCOR), which the acquisitions ledger records.

How big is big: the top 10 equal about 22.3% of industry receipts

Measured against Census receipts, the largest firms hold a sizable but minority share of a trade made up of tens of thousands of small firms. Census's own size data say firms with $100 million or more in receipts earn about a third of the total.

Formula: top 10 combined 2025 electrical revenue ($55,132.0 million) divided by 2022 NAICS 238210 receipts ($247,563.9 million) gives 22.3%. The same calculation gives 15.2% for the top 4 and 30.0% for the top 25. These are upper bounds: the company figures are three years newer than the Census receipts, and they include utility line, mechanical and foreign work that Census does not count in NAICS 238210.

The Census measure needs no mixing of sources. In 2022, 379 firms with receipts of $100 million or more earned $82,671.6 million, or 33.4% of receipts. Firms with 500 or more employees, 250 in all (0.31% of firms), earned 27.2%.

By establishment count the industry is even more spread out. County Business Patterns counted 83,342 electrical contracting establishments in 2023 with 1,015,983 employees; only 37 establishments had 1,000 or more workers. State-level counts are in our electrical contractor counts by state report, and more on running and selling an electrical business is in our business section.

Counts from the ledger

Get the calculations (CSV)

The numbers that matter

1. Quanta Services' Electric segment earned $23,001.5 million in fiscal 2025, up 21.0% from $19,012.4 million in 2024 (U.S.-based, with 7.0% of company revenue from foreign operations).^[1]
2. Quanta's 2025 Electric segment revenue was more than four times the next figure in the ledger, Rosendin's $5.5 billion in self-reported 2025 sales.^[1][17]
3. EMCOR's United States electrical construction and facilities services segment earned $5,074.3 million in 2025, up 51.8%, a year that included the Miller Electric acquisition.^[2]
4. Comfort Systems USA's Electrical segment grew 61.9% to $2,427.9 million in 2025, the fastest growth among the eight public companies in the ledger.^[7]
5. MasTec's Power Delivery segment earned $4,176.1 million in 2025, up 15.6%, which places MasTec fourth even though it does not appear on EC&M's survey list.^[3]
6. MYR Group's contract revenue, all from electrical construction, was $3,657.9 million in 2025, up 8.8%.^[5]
7. IES Holdings earned $2,645.2 million from its electrical installation lines in the fiscal year ended September 30, 2025, out of $3,371.5 million total revenue.^[6]
8. Seven of the top 10 are public companies, holding 81.1% of the top 10's $55.1 billion in disclosed 2025 revenue.^{[1][2][3][4][5][6][7][17]}
9. Public companies account for 62.0% of the top 25's $74.4 billion; Quanta alone accounts for 30.9%.^[1][17]
10. Three of the top 25 state that they are employee-owned (Rosendin, Motor City Electric and New River Electrical), with combined 2025 sales of $7,416.9 million.^{[17][23][26][27]}
11. Nine of the top 25 are private firms whose pages state no ownership structure; together they reported $14,380.3 million in 2025 sales to EC&M.^[17]
12. In 2022, 79,611 US electrical contracting firms (NAICS 238210) had receipts of $247.6 billion, an average of $3.11 million per firm.^[14]
13. The 379 NAICS 238210 firms with $100 million or more in receipts earned 33.4% of 2022 receipts; the 52,861 firms under $1 million earned 6.7%.^[15]
14. County Business Patterns counted 83,342 electrical contracting establishments in 2023, of which 37 had 1,000 or more employees.^[16]
15. EC&M's 2026 Top 50 Electrical Contractors reported combined 2025 revenue of $80.417 billion, which EC&M says is 35% above the 2024 revenue of its previous Top 50.^[18]

In short

• Quanta Services is the largest electrical contractor in the US by disclosed revenue: its Electric Infrastructure Solutions segment earned $23,001.5 million in fiscal 2025, 80.8% of company revenue (10-K filed 2026-02-19).
• Rosendin, an employee-owned firm in San Jose, CA, is the largest private entry with $5.5 billion in 2025 sales reported to EC&M.
• The top 10 combined disclosed $55.1 billion of 2025 electrical revenue; seven of the ten are public companies.
• Against $247.6 billion of 2022 NAICS 238210 receipts, the top 10 equal 22.3% and the top 4 equal 15.2%, both overstated by scope and year differences.
• Census data show 379 electrical contracting firms with receipts of $100 million or more earned 33.4% of 2022 receipts while making up 0.48% of firms.
• Ownership of the top 25: 8 public, 3 employee-owned, 2 PE-backed, 2 family-owned, 1 foundation-owned and 9 private firms that state no structure.
• Five of the top 25 changed ownership between January 2024 and October 2026; none was a target in our acquisitions ledger, but eight appear there as buyers in 12 deals.

Common questions

Keep reading

• Electrical contractor acquisitions
• Electrical contractors by state
• Business and Exits guide
• Largest Utility Companies in the US, 2025: Parent Companies Ranked by Customers, Sales and Revenue
• Lineman salary by state, metro and union scale (2026 data)
• Lineman School Registry: 92 US Lineworker Programs With Cost, Length and Outcomes
• All electrical contractor data

How we built this report

Selection: the ledger ranks firms by the electrical revenue they disclosed for fiscal or calendar 2025. Public companies were found through the SEC's SIC 1731 (Electrical Work) registrant list and the specialty contractors that report electrical segments; their latest 10-K filings were downloaded from EDGAR with a declared user agent. Private firms were taken from EC&M's free 2026 Top 50 Electrical Contractors table, the only free list with firm revenue figures.

Inclusion and exclusion: a public company is ranked only if its 10-K reports an electrical segment or revenue lines that can be added up to an electrical figure. Primoris, Dycom and Sterling are listed but not ranked. ENR's full electrical ranking is paywalled and was not used; the third-party blogs that transcribe ENR's tables were excluded. Firms that disclose no revenue anywhere cannot be ranked, so the ledger is a ranking of disclosed figures, not of every large firm.

Conflicts: where a public company appears in both sources, the 10-K figure is used and the EC&M figure is shown for comparison (IES reported a broader figure to EC&M than the lines counted here). Headquarters for public companies follow the EDGAR business address. Where EC&M's article and a firm release give different growth rates for the Top 50 (35% and 40%), EC&M's own figure is used.

Derived metrics: all formulas and inputs are in derived_metrics.csv and are recomputed by scripts/build.py from scripts/data.py and the raw files. Concentration indicators divide 2025 company revenue by 2022 Census receipts; because the years differ and company revenue includes work outside NAICS 238210, they are upper bounds, not Census concentration ratios. The Census receipts-size shares (t4) are the like-for-like measure.

Ownership: recorded only where a filing, the firm, its investor or a news report states it. Nine private firms with no statement found are labelled 'Private, structure not stated'. Ownership changes are those of the ranked firm itself since January 1, 2024; acquisitions the firms made are left to the acquisitions ledger and cross-checked against its registry.

Limitations: survey figures are self-reported and unaudited; segment definitions vary; Census receipts for 2022 are the latest available (the next Economic Census is 2027) and County Business Patterns 2023 is the latest CBP. Last updated 2026-10-27. Data and tables are licensed CC BY 4.0 with attribution to Electrical Contractors and Wiring Data Desk.

This report presents published data with its limitations. It is not legal, financial or investment advice.

Sources by tier

Tier 1: primary and official sources (16)

• [1] Quanta Services via SEC EDGAR. Quanta Services Form 10-K for fiscal 2025. Year ended December 31, 2025 (filed 2026-02-19). Accessed 2026-10-27.
• [2] EMCOR Group via SEC EDGAR. EMCOR Group Form 10-K for fiscal 2025. Year ended December 31, 2025 (filed 2026-02-26). Accessed 2026-10-27.
• [3] MasTec via SEC EDGAR. MasTec Form 10-K for fiscal 2025. Year ended December 31, 2025 (filed 2026-02-26). Accessed 2026-10-27.
• [4] Everus Construction Group via SEC EDGAR. Everus Construction Group Form 10-K for fiscal 2025. Year ended December 31, 2025 (filed 2026-02-25). Accessed 2026-10-27.
• [5] MYR Group via SEC EDGAR. MYR Group Form 10-K for fiscal 2025. Year ended December 31, 2025 (filed 2026-02-25). Accessed 2026-10-27.
• [6] IES Holdings via SEC EDGAR. IES Holdings Form 10-K for fiscal 2025. Year ended September 30, 2025 (filed 2025-11-21). Accessed 2026-10-27.
• [7] Comfort Systems USA via SEC EDGAR. Comfort Systems USA Form 10-K for fiscal 2025. Year ended December 31, 2025 (filed 2026-02-19). Accessed 2026-10-27.
• [8] Centuri Holdings via SEC EDGAR. Centuri Holdings Form 10-K for fiscal 2025. Year ended December 28, 2025 (filed 2026-02-26). Accessed 2026-10-27.
• [9] Primoris Services via SEC EDGAR. Primoris Services Form 10-K for fiscal 2025. Year ended December 31, 2025 (filed 2026-02-24). Accessed 2026-10-27.
• [10] Dycom Industries via SEC EDGAR. Dycom Industries Form 10-K for fiscal 2026. Year ended January 31, 2026 (filed 2026-03-09). Accessed 2026-10-27.
• [11] Sterling Infrastructure via SEC EDGAR. Sterling Infrastructure Form 10-K for fiscal 2025. Year ended December 31, 2025 (filed 2026-02-26). Accessed 2026-10-27.
• [12] U.S. Securities and Exchange Commission. EDGAR company search: SIC 1731 (Electrical Work), 10-K filers. Registry as of 2026-10-27. Accessed 2026-10-27.
• [13] U.S. Securities and Exchange Commission. EDGAR submissions API: company SIC codes, business addresses and filing index. Filings through 2026-10-27. Accessed 2026-10-27.
• [14] U.S. Census Bureau. Statistics of U.S. Businesses 2022: U.S. and states, 6-digit NAICS, by enterprise employment size. 2022 (Economic Census year; latest SUSB release with receipts). Accessed 2026-10-27.
• [15] U.S. Census Bureau. Statistics of U.S. Businesses 2022: firms and receipts by enterprise receipts size, 6-digit NAICS. 2022 (released 2025-04-10). Accessed 2026-10-27.
• [16] U.S. Census Bureau. County Business Patterns 2023, U.S. detail file. 2023 (file posted 2025-06-26; 2024 file not yet posted). Accessed 2026-10-27.

Tier 2: trade bodies, market research, company data (13)

• [17] EC&M (Electrical Construction & Maintenance). The 2026 Top 50 Electrical Contractors (rankings table). 2025 sales, published September 2026. Accessed 2026-10-27.
• [18] EC&M. Data Center Buildout Fuels Revenue Blowout: EC&M's 2026 Top 50 Electrical Contractors Special Report. 2025 sales, published September 2026. Accessed 2026-10-27.
• [19] Engineering News-Record. ENR 2026 Top 600 Specialty Contractors (free preview). 2025 revenue, 2026 list. Accessed 2026-10-27.
• [20] MYR Group. EC&M announces 2026 Top 50 Electrical Contractors. September 9, 2026. Accessed 2026-10-27.
• [21] MYR Group. MYR Group ranked in the top 10 on ENR's Top 600 Specialty Contractors and Top 50 Firms in Electrical lists. October 29, 2025 (ENR 2025 lists, 2024 revenue). Accessed 2026-10-27.
• [22] MMR Group. MMR Group recognized on EC&M's 2026 Top Electrical Contractors List. September 2, 2026. Accessed 2026-10-27.
• [23] Rosendin. Rosendin home page (Largest Employee-Owned Electrical Contractor). Accessed 2026-10-27. Accessed 2026-10-27.
• [24] Cache Valley Electric. Cache Valley Electric home page. Accessed 2026-10-27. Accessed 2026-10-27.
• [25] Aldridge Electric. Aldridge Electric home page. Accessed 2026-10-27. Accessed 2026-10-27.
• [26] Motor City Electric Co.. Motor City Electric Co. home page. Accessed 2026-10-27. Accessed 2026-10-27.
• [27] New River Electrical Corporation. New River Electrical home page. Accessed 2026-10-27. Accessed 2026-10-27.
• [28] Apollo Global Management. Apollo Funds acquire majority stake in The State Group. November 18, 2024. Accessed 2026-10-27.
• [29] One Rock Capital Partners. One Rock Capital Partners announces sale of ArchKey Solutions. September 4, 2024. Accessed 2026-10-27.

Tier 3: journalism and expert commentary (1)

• [30] Baton Rouge Business Report. Baton Rouge Area Foundation takes ownership of The Newtron Group. April 2, 2026. Accessed 2026-10-27.