Top 50 Electrical Construction Companies in 2026

Electrical construction companies play an important role in residential, commercial, and large-scale industrial projects. These firms design, install, test, maintain, and repair electrical systems, including power systems, fire and security systems, telecommunications, and electronic control systems. And the work is booming. 

According to EC&M, their Top 50 Electrical Contractors pulled in a record $59.5 billion in combined revenue for 2024. Much of the recent growth traces back to data centers and grid modernization, as the power demands of AI and electrification reshape the project pipeline.

50 Top Electrical Contractors and Electrical Construction Companies 

With so many contractors, it can be hard to tell which are the top-ranking. The industry relies on two annual lists to sort the who's who: Electrical Construction & Maintenance (EC&M) and Engineering News-Record (ENR). We built this list from the most recent EC&M Top 50 Electrical Contractors (its 2025 ranking, reporting 2024 sales), and nearly every firm on it also lands on ENR's Top 600.

Here's the full ranking, with each firm's headquarters, 2024 sales, and year-over-year growth.

10 Fastest-Growing Electrical Construction Companies to Watch

Revenue isn't the only sign of a healthy company. Growth rate often tells you more about where a firm is headed. Plenty of contractors on this list posted double-digit growth in 2024, and the 10 below grew by more than 35%.

Here's a closer look at what they do, who they serve, and what's driving the surge.

1. Gaylor Electric, +72.6% Growth

HQ: Indianapolis, IN | Founded: 1984 | 2024 Sales: $750M

Gaylor is one of the largest merit-shop electrical contractors in the country, with more than 3,500 employees across 15 offices in seven states. It runs a full design-build model with in-house engineering, virtual design and construction, and 24/7 service. Recent work includes Gainbridge Fieldhouse and an Amazon Air ramp facility.

2. MMR Group, +68.7% Growth

HQ: Baton Rouge, LA | Founded: 1991 | 2024 Sales: $2.33B

MMR is the largest open-shop electrical and instrumentation (E&I) contractor in the US, serving oil and gas, petrochemical, power generation, and renewables from roughly 30 offices across the Americas. It also fabricates control panels and handles commissioning and power development. One marquee job is the SunZia transmission project, a 535-mile line valued at around $2 billion.

3. E-J Electric Installation Co., +59.6% Growth

HQ: Long Island City, NY | Founded: 1899 | 2024 Sales: $1.36B

One of the oldest electrical contractors in the country with 127 years in the business, E-J is a family-owned, full-service firm with more than 4,000 employees across 32 offices. It handles design-build and EPC work, BIM, prefabrication, and storm recovery for aviation, transit and rail, healthcare, and data center clients.

4. VECA Electric & Technologies, +58.1% Growth

HQ: Seattle, WA | Founded: 1946 | 2024 Sales: $476M

VECA pairs electrical construction with a technology arm, an in-house UL panel and automation shop, and virtual design and construction. It serves data centers, healthcare, transportation, and life sciences across the Pacific Northwest. The firm delivered Washington's first project under the electrical contractor/construction manager model at the University of Washington.

5. CEC Facilities Group, +48.5% Growth

HQ: Irving, TX | Founded: 2009 | 2024 Sales: $358M

CEC is a specialty electrical and mechanical contractor focused on mission-critical work for semiconductors, data centers, and high-tech manufacturing, with electrical accounting for the bulk of its revenue. It runs structured cabling, AV, and prefabrication in-house. Sterling Infrastructure acquired CEC in September 2025, and it now operates as part of Sterling's family of companies.

6. Encore Electric, +42.4% Growth

HQ: Lakewood, CO | Founded: 2003 | 2024 Sales: $392M

Encore is an employee-owned (ESOP), merit-shop electrical contractor serving data centers, healthcare, aviation, industrial, and renewables across the Mountain West. Its services span preconstruction, technology and AV, prefabrication, and field service, with locations across Colorado, Wyoming, Montana, and Utah.

7. Ace Electric, +38.6% Growth

HQ: Valdosta, GA | Founded: 1975 | 2024 Sales: $382M

Ace is a family-owned Southeastern contractor with more than 1,200 employees and seven division offices. It keeps engineering, fabrication (including a UL 508A panel shop), modular assembly, and virtual design in-house, and it takes on jobs from $300K to $130M, including distribution centers, manufacturing plants, and data centers.

8. Sargent Electric Company, +37.7% Growth

HQ: Pittsburgh, PA | Founded: 1907 | 2024 Sales: $453M

Founded to serve Pittsburgh's power and industrial customers, Sargent is now one of the largest specialty contractors in its region, working across industrial, utility, wireless, commercial, transportation, and service markets. It has been named one of Pittsburgh’s fastest-growing companies by the Pittsburgh Business Times more than once.

9. Motor City Electric Co., +36.4% Growth

HQ: Detroit, MI | Founded: 1952 | 2024 Sales: $1.09B

Employee-owned Motor City crossed the billion-dollar mark in 2024. Its work ranges from basic wiring to design-build, design-assist, and preconstruction management across more than a dozen industries, including transportation, automotive, healthcare, hospitality, public works, renewables, stadiums, and utilities. Its projects include Detroit landmarks like Little Caesars Arena and Comerica Park (among others).

10. ERMCO, +36.2% Growth

HQ: Greenwood, IN | Founded: 1962 | 2024 Sales: $332M

Another employee-owned firm, ERMCO delivers electrical construction, low-voltage and technology systems, building controls, and UL 508A fabrication, backed by its in-house "ERMCO Institute" training program. Employee ownership shows up again and again among the fastest-growing firms on this list.

Top Electrical Contractors for Safety and Quality

Revenue isn't the only factor in ranking a contractor. Associated Builders and Contractors (ABC) scores its members on performance through its annual Top Performers report. Its Top Electrical Contractors list recognizes member firms that reached STEP Gold or higher and earned ABC's Accredited Quality Contractor (AQC) credential in 2024, ranked by work hours performed. 

This is a different lens than the EC&M revenue ranking, as it rewards how a company works, not simply how much it bills, which lets disciplined mid-size firms rank alongside giants. Several firms appear on both lists, including MMR, Faith Technologies, Bergelectric, M.C. Dean, Gaylor, Helix, Interstates, and Encore. Others, like Triad Electric & Controls, Hypower, and MetroPower, are strong performers that the revenue ranking doesn't capture.

Here are ABC's top 15 electrical performers for 2025.

What Smaller Electrical Contractors Can Learn from the Giants

The EC&M Top 50 collectively booked a record $59.5 billion in 2024, but most of the industry looks nothing like that. Per the BBB, more than 75% of the electrical industry’s revenue comes from companies with fewer than ten employees. So what can smaller contractors borrow from the giants?

It comes down to resources. Bigger firms have more working capital to bid on more projects, more talent to deliver them, and more technology to create efficiency and transparency. (It's also worth noting how many of the fastest-growing firms here are employee-owned, a structure that aligns the whole team behind growth.) But even small contractors can stretch their resources with the right tools. 

Construction billing software like Siteline helps electrical contractors keep more working capital on hand by making sure they get paid on time. It creates efficiency across your accounting team and gives you clearer visibility into your company's financial health. Schedule a demo to see how Siteline can make a difference for your electrical construction company. 

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Frequently Asked Questions

Who is the largest electrical contractor in the US?

Quanta Services is the largest, at $13.5 billion in 2024 revenue, more than three times the size of the next firm. The Houston-based company tops EC&M's 2025 Top 50 Electrical Contractors.

What are the biggest electrical construction companies?

The five largest by 2024 revenue are Quanta Services ($13.5B), Rosendin Electric ($3.69B), EMCOR ($3.58B), MYR Group ($3.36B), and Everus Construction Group ($2.85B).

Which electrical contractors are growing the fastest?

Gaylor Electric led all firms with 72.6% revenue growth in 2024, followed by MMR Group (68.7%), E-J Electric (59.6%), and VECA Electric & Technologies (58.1%). Much of the growth traces back to data centers and grid modernization.

How many electrical contractors are there in the US?

According to the National Electrical Contractors Association (NECA), there are more than 70,000 electrical contracting firms and roughly 650,000 electrical workers nationwide.

What happened to MDU Construction Services Group?

It was rebranded as Everus Construction Group after spinning off from MDU Resources in 2024. Everus ranks fifth among US electrical contractors, with $2.85 billion in 2024 revenue.

What's the difference between the EC&M and ENR electrical rankings?

Both rank contractors by electrical revenue. EC&M's Top 50 Electrical Contractors is the electrical-specific list this article is built on, while ENR's Top 600 Specialty Contractors ranks firms across every construction trade, with a separate electrical category. Most of the largest electrical firms appear on both.