AI Rankings · Snapshot 17 Sep 2026

ChatGPT's shortlist: commercial electrical contractors in the United States

We asked ChatGPT the questions buyers ask. Rosendin came up most, in 13 of 24 answers.

24ChatGPT answers read
138commercial electrical contractors named
54%Answer Share of #1, Rosendin
2Leaders in ChatGPT's answers

The Answer Map

Where the 20 most-named commercial electrical contractors sit in ChatGPT's answers

Niche Picks Named less often, near the top
Leaders Named often, near the top
On the Radar Named less often, further down
Recognized Named often, further down

Bubble size = buyer questions it shows up for

LEADERS ⓘ NICHE PICKS ⓘ RECOGNIZED ⓘ ON THE RADAR ⓘ 0%25%50%75%100% #1#2#3#4#5#6#7 ↑ Named earlier in the answer Answer Share: how often ChatGPT names them → Answer Rank R E M A M I Q M F P B H C E E A E F A C RosendinEMCOR GroupM.C. DeanArchKey SolutionsMYR GroupIES HoldingsQuanta ServicesMMR GroupFaith TechnologiesPower DesignBergelectricHelix ElectricCache Valley ElectricEVOAlansy ElectricFacility Solutions GroupAssociated Electrical ContractorsCupertino Electric

The takeaway

2 commercial electrical contractors are Leaders in ChatGPT's answers in the United States.

Rosendin and EMCOR Group are each named in at least half of ChatGPT's answers and land near the top.

2 Leaders0 Niche Picks2 Recognized16 On the Radar

Hover or tap a bubble, name or ⓘ for details. The labels describe how ChatGPT answers, not how good a company is.

ChatGPT's Shortlist

Every commercial electrical contractor ChatGPT names most, ranked

Commercial electrical contractors wire and maintain business buildings: service upgrades, panels and switchgear, lighting and controls, generators, and data center and industrial power work.

ChatGPT's Shortlist: Answer Share, answers named in, Answer Rank and Question Reach per company.
#vs last weekCompanyAnswer ShareWeekly trendNamed inAnswer RankQuestion ReachOn the map
1 Rosendin 54.2% 13 of 24 #1.9 5 of 8 Leaders
2 EMCOR named as EMCOR Group 54.2% 13 of 24 #2.8 5 of 8 Leaders
3 M.C. Dean 54.2% 13 of 24 #5.2 5 of 8 Recognized
4 ArchKey Solutions 54.2% 13 of 24 #5.8 5 of 8 Recognized
5 MYR Group 45.8% 11 of 24 #4.6 5 of 8 On the Radar
6 IES Holdings no website found yet 41.7% 10 of 24 #5.5 5 of 8 On the Radar
7 Quanta Services 33.3% 8 of 24 #3.6 4 of 8 On the Radar
8 MMR Group 33.3% 8 of 24 #6.8 5 of 8 On the Radar
9 Faith Technologies 29.2% 7 of 24 #7.7 4 of 8 On the Radar
10 Power Design 29.2% 7 of 24 #8.6 4 of 8 On the Radar
11 Bergelectric 20.8% 5 of 24 #7.8 2 of 8 On the Radar
12 Helix Electric 20.8% 5 of 24 #9.0 3 of 8 On the Radar
13 Cache Valley Electric 20.8% 5 of 24 #9.2 4 of 8 On the Radar
14 Everus Construction Group 16.7% 4 of 24 #8.0 3 of 8 On the Radar
15 EVO Corp 12.5% 3 of 24 #6.7 1 of 8 On the Radar
16 Alansy Electric 12.5% 3 of 24 #8.0 1 of 8 On the Radar
17 E-J Electric Installation named as E-J Electric Installation Co 12.5% 3 of 24 #9.0 3 of 8 On the Radar
18 Facility Solutions Group 8.3% 2 of 24 #3.5 2 of 8 On the Radar
19 Associated Electrical Contractors, LLC 8.3% 2 of 24 #4.0 2 of 8 On the Radar
20 Cupertino Electric 8.3% 2 of 24 #4.0 2 of 8 On the Radar

Ranked by Answer Share, the share of ChatGPT's answers that name the company. Answer Rank is where it shows up when named (#1 = named first). Question Reach is how many of the 8 buyer questions it appears for. "vs last week" starts with the next weekly snapshot on 24 Sep 2026; this is the first week of tracking.

Not on ChatGPT's shortlist? Find out why in a free AI visibility audit.

Buyer questions

Who ChatGPT names most, question by question

The 8 questions we ask ChatGPT, each asked 3 times.

Overall, Rosendin is named most. But ask “Which commercial electrical contractors in the United States handle switchgear, generators and service upgrades?” and Alansy Electric comes up in 3 of 3 answers.

In ChatGPT's words

How ChatGPT describes the top three

#1 · Rosendin

“Rosendin Electric — one of the largest U.S. electrical contractors; 2025 EC&M ranking put it #2 by 2024 electrical/data sales, at about $3.69B.”

#2 · EMCOR Group

“EMCOR Group — Particularly relevant for facility managers because its businesses span electrical construction plus mechanical and building services.”

Where ChatGPT gets its information

The websites behind the answers

To show up on this list, these are the sites ChatGPT is reading.

The websites ChatGPT cites most across this page's answers.
WebsiteTimes citedShare
img.ecmweb.com97%
rosendin.com87%
ecmweb.com54%
enr.com54%
withorbital.com54%
fsg.com54%
concentricusa.com32%
resapower.com32%
alansyelectricservice.com32%
evo-corp.us32%

The receipts

Every answer, word for word

One full ChatGPT answer for each buyer question, unedited.

“What are the best commercial electrical contractors in the United States?” ChatGPT · 17 Sep 2026

If by “best” you mean the strongest national commercial/industrial electrical contractors by scale, project capability, geographic reach, and recent industry standing, several companies stand out. There isn't a single objective “best” contractor; the right choice depends heavily on project type and location.

The latest national EC&M Top 50 Electrical Contractors ranking is a useful benchmark. It is based on electrical/voice-data-video sales, and the 2025 edition reported a record $59.5 billion in combined 2024 revenue.

Major U.S. commercial electrical contractors

  • Quanta Services — The largest company in EC&M's 2025 electrical-contractor ranking, with $13.5 billion in 2024 electrical sales. Particularly strong in large-scale electrical infrastructure, utility, energy, industrial and communications work.
  • Rosendin — $3.69 billion in 2024 sales and #2 in EC&M's ranking. A major commercial/industrial contractor with substantial experience in data centers, semiconductor facilities, healthcare and other technically demanding projects.
  • EMCOR Group — $3.58 billion in electrical sales and #3 in EC&M's 2025 ranking. Its nationwide network gives it substantial commercial, industrial, institutional and infrastructure capability.
  • MYR Group — $3.36 billion in 2024 electrical sales and #4 nationally. Especially prominent in transmission, distribution, utility and commercial electrical construction.
  • Everus Construction Group — $2.85 billion in 2024 sales and #5. Has significant electrical, utility and industrial capabilities.
  • IES Holdings — $2.51 billion in 2024 sales and #6. Active in commercial, data-center, industrial and infrastructure-related electrical work.
  • MMR Group — $2.33 billion in 2024 sales and #7. Particularly notable for industrial electrical and instrumentation work, including energy and process facilities.
  • M.C. Dean — $1.93 billion in 2024 sales and #8. Strong in complex electrical, communications, security, controls and mission-critical facilities.

Other firms worth considering

ArchKey Solutions, Faith Technologies, E-J Electric Installation, Power Design, Helix Electric, Bergelectric, Hunt Electric, Gaylor Electric, Cache Valley Electric, and The Newtron Group are also prominent national or regional players. EC&M's ranking provides a useful way to compare their scale.

For a more independent industry benchmark, ENR's Top 600 Specialty Contractors classifies contractors by specialty. In its 2025 list, Rosendin was #7 overall among specialty contractors, while MYR Group was #8; ENR classifies both primarily as electrical firms.

The important distinction

If you're actually hiring a contractor for a commercial project, I wouldn't choose solely from a national ranking. I'd narrow the field based on:

  • Project type: office, retail, hospital, manufacturing, warehouse, data center, semiconductor, hotel, etc.
  • Project size: e.g. $1M vs. $100M+ electrical scope
  • Geography: many excellent contractors are strongest in particular regions.
  • Self-performance: how much electrical work they perform with their own workforce.
  • Design-build capability
  • Mission-critical experience
  • Prevailing wage/union requirements
  • Schedule and manpower capacity
  • Safety record and EMR
  • Bonding capacity and financial strength
  • Comparable completed projects

For example, ENR's regional rankings show how dramatically the picture changes geographically: Hunt Electric leads its 2026 Midwest specialty-contractor ranking with $1.06 billion in regional revenue and 100% electrical work, while Bergelectric and Helix Electric are among the major electrical contractors in the West.

If you tell me the state/city, approximate project value, and type of commercial building, I can narrow this to a practical shortlist of contractors that actually handle projects like yours, including their geographic coverage and relevant project experience.

“Which commercial electrical contractors in the United States are best for contractors and facility managers?” ChatGPT · 17 Sep 2026

If by “best” you mean strong candidates to evaluate for commercial projects, service/maintenance, and facility-management work, rather than simply the biggest by revenue, I’d look at a mix of national and regional firms.

The latest EC&M Top 50 data available ranks the largest electrical contractors by 2024 electrical/voice-data-video sales. The top of that list includes Quanta, Rosendin, EMCOR, MYR Group, Everus, IES, MMR, M.C. Dean, ArchKey, and Faith Technologies.

Companies worth putting on a national shortlist

  • Rosendin — Particularly relevant to commercial construction, data centers, mission-critical facilities and large electrical projects. It ranked #2 in the 2025 EC&M Top 50, with $3.69B in 2024 sales.
  • EMCOR Group — An interesting choice for facility managers because its businesses span electrical, mechanical and broader building services, potentially allowing more integrated building maintenance. It ranked #3, with $3.58B in 2024 sales.
  • M.C. Dean — Particularly relevant for complex commercial/mission-critical facilities where electrical infrastructure intersects with security, communications, controls and building technology.
  • IES Holdings — Large-scale commercial, industrial and mission-critical electrical work; #6 on the 2025 EC&M list.
  • ArchKey Solutions — Worth considering for large commercial and institutional projects and sophisticated electrical systems.
  • Faith Technologies — Particularly relevant where electrical construction, energy infrastructure and ongoing facility needs overlap.
  • MMR Group — More industrial-oriented, but potentially very relevant for manufacturing and technically demanding facilities. It ranked #7 in EC&M's 2025 list.
  • MYR Group — One of the largest electrical contractors, although a substantial portion of its business is power infrastructure rather than conventional building electrical work. It ranked #4 in EC&M's 2025 list.
  • Quanta Services — The largest company on the EC&M list, but its enormous scale is heavily associated with electric-power and utility infrastructure. For a typical office, retail, hospital or warehouse facility, that doesn't necessarily make it the most appropriate vendor.

For a facility manager, I'd evaluate different things than revenue

A huge contractor isn't automatically the right service partner. I'd compare prospective contractors on:

FactorWhat to look for
Service response24/7 emergency response, guaranteed response times
Local workforceTechnicians actually located near your facilities
Preventive maintenanceFormal PM programs, inspections and testing
Multi-site coverageAbility to service multiple buildings consistently
Project capabilityCan handle renovations, shutdowns and capital projects
Controls/BASBuilding automation and controls expertise
Power qualityInfrared, power-quality analysis, switchgear and distribution
Critical powerGenerators, UPS, ATS, emergency systems
DocumentationAs-builts, testing reports, asset records and CMMS integration
SafetyEMR, OSHA record, training and safety program
LicensingProper licenses in every jurisdiction where work is performed
Commercial termsTransparent T&M rates, markup, service agreements and warranties

One particularly important distinction is construction contractor vs. service contractor. A company can be enormous at building a $100M data center yet not be the ideal partner for a facility manager who needs a technician at three office buildings on a Saturday night.

There are also roughly 70,000 active electrical-contractor establishments in the U.S., with the largest national brands representing only a tiny fraction of the overall market. That means a strong regional contractor can be a better operational fit than a national giant.

If you're actually selecting vendors

I can make this much more useful by narrowing it to the 10–20 commercial electrical contractors I'd put on an RFP list, based on:

  • geographic coverage
  • commercial/industrial focus
  • facility maintenance capability
  • emergency service
  • typical project size
  • union/non-union
  • data center/healthcare/manufacturing experience
  • customer reviews/reputation
  • safety and financial strength

If you tell me what state/metro area the facilities are in and the type/size of the facilities, I can research the actual contractors operating there and build a side-by-side shortlist.

“Which commercial electrical contractors in the United States handle switchgear, generators and service upgrades?” ChatGPT · 17 Sep 2026

Places ChatGPT showed

  • Dynalectric Colorado · 3.6★ · Electrician
  • Sturgeon Electric Company, Inc. · 4.1★ · Contractor
  • N Line Electric · 4.7★ · Construction company
  • RMS Energy Co, LLC. · 5.0★ · Construction company
  • Power Solutions Group Ltd. · 5.0★ · Electrical engineer

If you're looking for contractors that can handle all three—switchgear, standby generators, and commercial service upgrades—there are several U.S. firms worth screening. The right choice depends heavily on voltage, project size, and whether you need a true electrical contractor versus a power-systems specialist.

Nationwide / multi-state contractors

  • ** — One of the clearest nationwide fits. FSG specifically lists 1200A+ service installations, switchgear replacements, service expansions, commercial generator installations/replacements, transfer switches, and backup-power commissioning**. It says it operates from 30+ U.S. locations and supports customers nationwide.
  • ** — National critical-power provider covering generators, switchgear, electrical distribution equipment, engineering, installation, maintenance and upgrades**. Particularly relevant for data centers and other mission-critical facilities.
  • ** — More specialized toward switchgear, breakers and power-distribution equipment**, with 40+ U.S./Canadian locations. It also lists generators among its equipment capabilities.

Regional / specialized power contractors

  • Carter Power Systems — Particularly strong for generator controls, paralleling systems, switchgear modernization, ATS upgrades and engineering. Its service organization lists 500+ technicians and eight dedicated service locations.
  • Comp-Utility — A Texas-focused contractor providing turnkey generators, ATS, paralleling switchgear, installation, commissioning, load-bank testing and maintenance.
  • Current Edge Solutions — Southeastern U.S.; provides commercial/industrial generators, transfer switches, switchgear, transformers and generator/paralleling-control upgrades, plus ongoing maintenance.
  • Alansy Electric — Jacksonville, Florida; explicitly handles 800–4000A switchgear upgrades, generator installation/service, and commercial service/panel upgrades.

If your project is in Colorado

A few local/regional firms are particularly relevant:

  • Dynalectric Colorado — Commercial/industrial contractor with experience involving switchgear, transformers, emergency power, generators, distribution upgrades and facility maintenance.
  • Sturgeon Electric Company, Inc. — Large Colorado electrical contractor serving commercial/industrial facilities, including hospitals, data centers and other major infrastructure; also provides service and maintenance.
  • N Line Electric — Particularly relevant if your project involves medium-voltage distribution, switchgear, transformers, feeders and industrial upgrades.
  • RMS Energy Co, LLC. — More power-infrastructure oriented, with switchgear modernization/replacement, generator-switchgear retrofits, substations and protection/control work.
  • Power Solutions Group Ltd. — Denver-area engineering/testing specialist covering switchgear modernization, breakers, generators, electrical distribution and commissioning.

What I'd look for when qualifying them

For a commercial project, I'd ask each contractor whether they self-perform:

  1. Service entrance upgrades — e.g. 800A, 1200A, 2000A, 3000A+.
  2. LV/MV switchgear — including replacement, retrofit and breaker work.
  3. Generator installation — not merely generator sales/service.
  4. ATS and paralleling switchgear.
  5. Utility coordination and shutdowns.
  6. Load-bank testing and commissioning.
  7. Arc-flash/coordination studies and protective-relay testing.
  8. Ongoing maintenance/service, ideally with 24/7 emergency response.

For large service upgrades combined with generators and switchgear, I'd distinguish between a conventional commercial electrical contractor and a critical-power/medium-voltage contractor. The latter becomes especially important at 2,000A+, 480V paralleling systems, 5–35kV service, hospitals, data centers, manufacturing plants, etc.

If you tell me the state(s), approximate service size (e.g. 1200A/2000A/4000A), voltage, and whether this is one facility or a multi-site program, I can narrow this to a more targeted U.S. contractor list and identify which ones explicitly self-perform all three scopes.

“Which commercial electrical contractors in the United States offer 24/7 emergency service?” ChatGPT · 17 Sep 2026

Places ChatGPT showed

  • ESI Electrical Contractors · 5.0★ · Construction company
  • CSI Electrical Contractors, Inc. · 4.5★ · Contractor
  • Amber Electrical Contractors, Inc · 4.4★ · Electrician
  • Krause Electrical Contractors · 4.0★ · Electrician
  • Ochs Service Inc. Electrical Contractors · 3.5★ · Electrician
  • Associated Electrical Contractors, LLC · 5.0★ · Electrician
  • Commercial Electrical Services, Inc. · 5.0★ · Electrician
  • MC Electrical · 4.7★ · Electrician
  • A-1 Commercial Electric LLC · 5.0★ · Electrician

Yes. There are commercial electrical contractors across the U.S. that explicitly advertise 24/7 or 24-hour emergency response. A few examples, ranging from regional contractors to firms advertising multi-state coverage:

ContractorPrimary service area24/7 commercial emergency service
ESI Electrical ContractorsOhio & surrounding statesYes — dedicated service department advertises 24/7 emergency response
CSI Electrical Contractors, Inc.Southern CaliforniaYes — dedicated 24/7 emergency hotline
Amber Electrical Contractors, IncTexasYes — commercial/industrial emergency response
Krause Electrical ContractorsNorthern Illinois & Southern WisconsinYes — 24-hour emergency service
Ochs Service Inc. Electrical ContractorsNew JerseyYes — 24/7 emergency dispatch
Associated Electrical Contractors, LLCNorthern IllinoisYes — 24/7 emergency support
Commercial Electrical Services, Inc.Metro DetroitYes — 24/7 emergency availability
MC ElectricalNew York metroYes — 24/7 availability
A-1 Commercial Electric LLCPennsylvania / Delaware / New Jersey areaYes — 24/7 emergency service
Fuze Electrical Services & Commercial ElectricianSouth FloridaYes — 24/7 emergency service

A few particularly interesting multi-state/nationally oriented options are:

  • EVO Corp. — based in Colorado, advertises commercial/industrial electrical work across 30+ states and explicitly offers 24/7 commercial emergency response.
  • Lightning Mobile Electric — based in Denver and advertises 24/7 emergency response, with coverage across 12 states and work for Fortune 500 manufacturers, facility managers and government agencies.
  • Power and Control Installations (PACI) — describes itself as a national industrial electrical systems contractor for the food and beverage industry and advertises 24/7 emergency electrical repair.

There are also strong regional contractors such as Mayers Electric in the Cincinnati tri-state area, which provides commercial/industrial electrical contracting and explicitly advertises 24/7 emergency service.

If you're looking for a national vendor

If your goal is to identify contractors that can support multiple commercial facilities in different states under one service agreement, that's a narrower category than simply finding electricians that answer emergency calls. I can compile a 20–30 company list of U.S. commercial electrical contractors offering 24/7 emergency service, including:

  • States/metros covered
  • Commercial/industrial specialties
  • Approximate company size
  • 24/7 dispatch phone
  • Whether they support multi-site/national accounts
  • Service/maintenance contracts
  • Official website
  • Headquarters

That would be more useful for building a national vendor shortlist.

“Which commercial electrical contractors have locations across the United States?” ChatGPT · 17 Sep 2026

If by “locations across the United States” you mean commercial electrical contractors with offices/operating companies in multiple states—not merely contractors willing to travel nationally—the field is relatively small. Some of the more significant ones are:

ContractorU.S. footprintCommercial electrical focus
EMCOR Group~450 U.S. locationsElectrical construction, facilities, industrial, mission-critical, data centers
MYR Group70+ office locationsCommercial & industrial, data centers, healthcare, transportation, power infrastructure
ArchKey SolutionsOffices in 9 states; nationwide deliveryElectrical construction, technology systems, industrial, commercial
Quanta ServicesExtensive nationwide network through operating companiesElectrical infrastructure, industrial, commercial/industrial, power
RosendinMultiple major U.S. offices/regionsCommercial, industrial, data centers, semiconductor, healthcare
M.C. DeanMultiple U.S. locationsMission-critical, data centers, government, commercial, electrical/technology systems
IES Holdings / IES ElectricalMulti-stateCommercial/industrial electrical, data centers, infrastructure
Everus Construction GroupMulti-state operating companiesElectrical construction, industrial, commercial and infrastructure
MMR GroupMultiple U.S. locationsIndustrial, electrical/instrumentation, commercial and infrastructure
Power DesignMulti-state operationsMultifamily, commercial, electrical construction and technology

The 2025 EC&M Top 50 Electrical Contractors confirms many of these as among the largest U.S. electrical contractors; for example, Quanta, Rosendin, EMCOR, MYR, Everus, IES, MMR and M.C. Dean were the top eight by 2024 electrical/datacom sales.

Particularly relevant if you need a true national contractor

EMCOR stands out for sheer physical coverage: it reports approximately 450 U.S. locations and about 100 operating companies, with electrical construction among its core businesses.

MYR Group reports 70+ office locations and specifically identifies commercial & industrial work—including healthcare, transportation, manufacturing, data centers and warehousing—among its markets.

ArchKey Solutions explicitly markets nationwide electrical and systems delivery, with offices in nine states and regional operating companies serving different parts of the country.

Rosendin is another major national commercial contractor; it describes itself as the largest employee-owned electrical contractor in the U.S. and handles complex construction projects at significant scale.

One important distinction

There are two different types of “national” electrical contractors:

  • National footprint: They actually have offices/operating companies distributed around the country.
  • National capability: They may have only a handful of offices but can mobilize crews and obtain licensing to perform projects throughout the country.

If you're looking for contractors for multi-location commercial rollouts—for example, retail, restaurants, warehouses, healthcare facilities, banks, or corporate facilities—I can narrow this down to 10–20 contractors that have offices in the most states, including their state-by-state locations, headquarters, approximate employee count, and commercial specialties.

“Who are the best commercial electrical contractors in the US for contractors and facility managers?” ChatGPT · 17 Sep 2026

If you mean large commercial/industrial electrical contractors that GCs, owners, and facility managers can realistically use for major projects and ongoing service, I’d build the shortlist around scale, geographic coverage, mission-critical capability, service/maintenance depth, and project type rather than simply “largest company.”

The latest EC&M Top 50 data ranks the largest electrical contractors by electrical/voice-data-video revenue; its 2025 list is based on 2024 revenue.

National contractors worth shortlisting

ContractorParticularly relevant forWhy they stand out
Quanta ServicesUtilities, large infrastructure, power, industrialBy far the largest electrical contractor in the latest EC&M ranking; extensive power-infrastructure capabilities.
RosendinData centers, commercial, semiconductor, advanced manufacturing, large facilitiesOne of the largest U.S. electrical contractors, with significant complex-project and mission-critical experience.
EMCOR GroupCommercial buildings, facilities, industrial, mechanical/electrical serviceParticularly relevant to facility managers because of its broad electrical/mechanical construction and facilities-services footprint.
MYR GroupUtility, transmission/distribution, industrial and large electrical constructionOne of the country's largest electrical contractors, with substantial power infrastructure capabilities.
M.C. DeanData centers, government, transportation, security/technology-intensive facilitiesStrong fit where electrical infrastructure intersects with controls, communications, security and mission-critical systems.
IES HoldingsData centers, commercial, industrial, infrastructureLarge national platform with substantial electrical construction capacity.
MMR GroupIndustrial plants, manufacturing, instrumentation, controlsParticularly relevant for industrial owners and facilities where electrical + instrumentation/automation are important.
ArchKey SolutionsCommercial, industrial, data centers, advanced technologyLarge national electrical/systems contractor; EC&M places it among the top U.S. electrical contractors.
Faith Technologies (FTI)Data centers, industrial, commercial, energyStrong combination of electrical construction, prefabrication, technology and energy capabilities.
E-J ElectricCommercial, infrastructure, transportation, New York/NortheastMajor electrical contractor with substantial large-project experience.
Power DesignCommercial/multifamily, hospitality, large developmentsParticularly relevant to high-volume commercial development.
Helix ElectricCommercial, data centers, healthcare, technologyStrong Western U.S. commercial electrical contractor.

For facility managers specifically

I'd separate the market into two categories.

For new construction / major capital projects: Rosendin, EMCOR, M.C. Dean, IES, ArchKey, Faith Technologies and regional specialists are particularly worth investigating.

For ongoing facility electrical service: EMCOR and its operating companies are especially relevant because the platform spans construction and facilities/services work. Regional contractors can also be much more competitive for preventative maintenance, emergency response, generator/ATS work, lighting, switchgear, infrared inspections and recurring service.

That's an important distinction: the biggest construction contractor isn't necessarily the best service contractor for an operating facility.

A practical national shortlist

If I were building a vendor database for GCs, owners and facility-management teams, I'd start with:

  • Quanta Services
  • EMCOR Group
  • Rosendin
  • MYR Group
  • M.C. Dean
  • IES Holdings
  • MMR Group
  • ArchKey Solutions
  • Faith Technologies
  • E-J Electric
  • Power Design
  • Helix Electric

The industry data supports the scale of this group: the 2025 EC&M ranking puts Quanta, Rosendin, EMCOR, MYR, Everus, IES, MMR, M.C. Dean, ArchKey and FTI in its top 10.

One caveat: a national list can be misleading. The U.S. has roughly 70,000 electrical-contractor establishments, and even the largest brands represent a very small fraction of the total market. For a facility manager, a strong regional contractor with a 24/7 service department may be more useful than a huge national EPC contractor.

If you're looking at this from a contractor/vendor-selection or business-development perspective, I can also build you a Top 25 U.S. commercial electrical contractors list with headquarters, geographic coverage, estimated size, specialties (data center/industrial/healthcare/etc.), service capabilities, and the types of GCs/facility owners they typically work with.

“Which commercial electrical contractors in the United States are most competitive on bids and change orders?” ChatGPT · 17 Sep 2026

If by “competitive on bids and change orders” you mean contractors that tend to be aggressive on initial pricing while also maintaining disciplined, commercially reasonable change-order pricing, there is no reliable national public dataset that ranks electrical contractors on those two metrics. Public rankings mainly measure revenue, not bid competitiveness or change-order behavior. ENR’s 2025 Top 600 Specialty Contractors, for example, ranks firms by specialty-contracting revenue.

For a national commercial/industrial bid list, I would investigate these firms first:

  • Rosendin Electric — one of the largest U.S. electrical contractors; 2025 EC&M ranking put it #2 by 2024 electrical/data sales, at about $3.69B.
  • EMCOR Group — #3 in EC&M's 2025 electrical-contractor ranking, with about $3.58B in 2024 electrical/data sales. Its decentralized operating structure can make regional pricing particularly relevant.
  • MYR Group — #4 nationally in the EC&M ranking, with about $3.36B in 2024 sales. It has substantial geographic reach and multiple operating companies.
  • IES Holdings — #6, with about $2.51B in 2024 sales; worth including for commercial/industrial work depending on geography and project type.
  • M.C. Dean — #8, about $1.93B in 2024 sales, with significant electrical, technology and mission-critical capabilities.
  • ArchKey Solutions — a major national electrical/technology contractor that can be worth soliciting alongside the larger publicly ranked firms.
  • Faith Technologies (FTI) — particularly relevant for large commercial, industrial and mission-critical projects.
  • E-J Electric Installation — a significant electrical contractor, particularly in the Northeast; ENR's 2025 East specialty ranking lists it as a 100%-electrical firm.
  • Cache Valley Electric — worth considering for Western projects; ENR lists it as 100% electrical with $732M of 2024 regional revenue in its Mountain States/Southwest ranking.
  • Encore Electric — another regional competitor worth testing, particularly in the Mountain States; ENR lists it as 100% electrical with $349.5M of 2024 regional revenue.

The important caveat on change orders

I wouldn't equate a low bid with good change-order performance. Those are separate commercial behaviors. ELECTRI International's research specifically notes that electrical contractors frequently find change orders less profitable than the original bid and developed standardized guidelines around direct costs, overhead/profit, and consequential costs.

If you're a GC, developer, or owner trying to identify genuinely competitive electrical subs, I'd evaluate bidders on a scorecard containing:

MetricWhat to request
Initial bid competitivenessHistorical bid tabulations, normalized for scope
Change-order markupLabor, material, subcontractor and O&P markups
Change-order turnaroundMedian days from RFI/ASI to priced CO
CO hit rate% of proposed COs actually approved
CO varianceProposed vs. negotiated/final amount
Labor ratesBase wage + burden + foreman/supervision
Material pricingDiscount structure and supplier quotes
AllowancesFrequency and magnitude of overruns
Scope exclusionsNumber/value of exclusions per bid
VE participationDocumented savings proposed before award
ClaimsFrequency and dollar value of disputed COs
CloseoutFinal contract value vs. original contract value

For bid competitiveness specifically, regional firms can be more interesting than the national giants. The U.S. electrical market is extremely fragmented—one recent industry analysis identified roughly 70,000 active establishments, with the ten largest brands accounting for less than 1% of storefronts. That means the best pricing for a particular market can easily come from a strong regional contractor rather than one of the national leaders.

If you tell me the project type (office, healthcare, industrial, data center, multifamily, retail, etc.), approximate contract size, and states/metros you're bidding in, I can build a more useful 10–20-contractor bid list, including regional firms and what to look for in their change-order terms.

“Which family-owned or locally owned commercial electrical contractors in the United States do general contractors trust?” ChatGPT · 17 Sep 2026

Places ChatGPT showed

  • M.J. Adams Electrical Contractors, Inc. · 5.0★ · Electrician
  • Associated Electrical Contractors, LLC · 5.0★ · Electrician
  • King Electrical Contractors Inc. · 5.0★ · Contractor
  • Mmi Electrical Contractors · 4.3★ · Electrician
  • Summit Electrical Contractors · 4.4★ · Electrician

Yes. If by “trusted” you mean commercial electrical contractors with evidence of repeat GC relationships, industry recognition, substantial project capability, and family/local ownership, there are several that stand out.

There isn't a reliable national database that measures “GC trust” directly, so I would not treat this as a definitive ranking. Instead, I’d use GC-facing indicators such as repeat work, ENR/ABC recognition, scale, safety programs, longevity, and documented relationships with major builders.

A strong national shortlist

  • Ace Electric — Southeast / national
  • Founded in 1975 and still family owned, with the second generation running the company.
  • Roughly $216 million in national revenue in ENR's reporting and ranked among the nation's largest specialty contractors.
  • Commercial work spans healthcare, hospitality, education, manufacturing, mission-critical, government and industrial projects.
  • ENR named Ace 2024 Southeast Specialty Contractor of the Year.
  • Why GCs may value them: they've grown substantially without abandoning family ownership and are capable of handling genuinely large commercial/mission-critical work.
  • Collins Electrical Company — Northern/Central California
  • Family owned and operating for roughly a century.
  • Reported approximately $230 million in annual revenue.
  • Projects include hospitals, courthouses, casinos and major power facilities.
  • ENR named Collins California Specialty Contractor of the Year in 2022.
  • Why GCs may value them: exceptional longevity plus the ability to perform large, technically complicated work.
  • E-J Electric Installation Co. — New York / Northeast
  • One of the oldest independent electrical contractors in the U.S.
  • Family owned, with a very large commercial/project organization.
  • Has worked across offices, sports facilities, transportation, communications, airports and other complex projects.
  • ENR has repeatedly recognized the company as a leading specialty contractor in the New York market.
  • Why GCs may value them: deep engineering/project-management capability and a long history of complex commercial work.
  • Cache Valley Electric — Intermountain West
  • Family owned and based in Logan, Utah.
  • Has been operating since 1916.
  • ENR specifically highlighted its long-term relationships with clients and its work with Layton Construction on major commercial projects.
  • Why GCs may value them: extraordinary longevity and demonstrated relationships with major construction firms.
  • Ward Electric Company — Mountain West
  • Second-generation, family-owned electrical contractor.
  • Six locations and 550+ employees according to ENR.
  • Specializes heavily in power infrastructure, substations, renewables and grid work, with broader commercial capabilities.
  • ENR selected Ward as its 2025 Mountain States Specialty Firm of the Year.
  • Why GCs may value them: substantial regional scale while retaining family ownership and a strong safety/quality reputation.
  • Dausin Electric — South Texas
  • Family owned and operated since 1985.
  • More than 150 employees and capable of large projects.
  • Holds both AGC and ABC affiliations and has received AGC/ABC subcontractor and excellence awards.
  • The company specifically documents an AGC Specialty Contractor of the Year award and ABC Subcontractor of the Year recognition.
  • Why GCs may value them: this is particularly interesting if you're looking for a subcontractor with established GC-industry recognition rather than simply a highly rated local electrician.

A few smaller/local-market candidates

There are also family-owned firms that aren't national ENR-scale but may be exactly what a GC wants for regional commercial work:

  • M.J. Adams Electrical Contractors, Inc. — Cincinnati: family owned and operated since 1989, with commercial/industrial capability and SBE status.
  • Associated Electrical Contractors, LLC — Woodstock, Illinois: commercial/industrial construction, design-build and maintenance; serves healthcare, education, municipal, retail, airports and other markets.
  • King Electrical Contractors Inc. — Fayetteville, Arkansas: family owned, established in the 1980s, with commercial, industrial and maintenance capabilities.
  • Mmi Electrical Contractors — Pennsauken, New Jersey: family owned, established in 1985, with a strong commercial/industrial focus.
  • Summit Electrical Contractors — Jacksonville, Florida: family-owned commercial/industrial contractor with a long regional presence.

What I would look for if you're evaluating them as a GC

Rather than relying on Google reviews—which aren't particularly useful for judging a subcontractor—I would screen for:

  1. Repeat GC customers — especially evidence of multiple projects with the same GC.
  2. GC references — ask for 3–5 superintendents/PMs who have worked with them recently.
  3. Safety performance — EMR, OSHA recordables, TRIR/DART and documented safety programs.
  4. Schedule performance — whether GCs actually describe them as reliable on manpower and schedule.
  5. Change-order behavior — probably one of the most important indicators of whether a subcontractor is genuinely GC-friendly.
  6. Preconstruction capability — estimating, BIM/VDC, design-assist and constructability review.
  7. Working capital/bonding — particularly important for larger commercial jobs.
  8. Self-perform manpower — how much work they actually control versus subcontract.
  9. Market specialization — healthcare, data centers, industrial, multifamily, education, etc.
  10. Ownership stability — whether the family/local ownership is actually involved in operations rather than merely retaining equity.

One particularly useful signal is ABC's Accredited Quality Contractor/STEP and Excellence in Construction ecosystem. ABC's EIC program specifically recognizes electrical specialty contractors on commercial and industrial projects, while its Top Performer program incorporates safety and quality credentials.

If you're looking for subcontractors to actually bid work to, rather than just researching the industry, I can make this much more useful: I can build a 50-company U.S. prospect list of family-owned/local commercial electrical contractors, organized by state, annual revenue/size, markets served, union/nonunion, geographic footprint, major GC relationships, and evidence of repeat GC work.

How AI Rankings work

Real answers, counted

We asked ChatGPT (web search on, United States) each of the 8 buyer questions 3 times: 24 answers, collected 17 Sep 2026.

Answer Share is the share of those answers that name a company at least once. Answer Rank is where the company shows up when it is named (#1 = named first), averaged. Question Reach is how many of the buyer questions it appears for.

On the Answer Map, the lines cross at 50% Answer Share and Answer Rank #3. Leaders are named in at least half the answers and near the top; Niche Picks are named less often but early; Recognized are named often but further down; On the Radar are named some of the time, further down. These labels describe ChatGPT's answers, not company quality.

Every company listed was matched to its own website. Names we could not match to a real business are left out. Nothing is hand-picked, and no company can pay to appear.

Other markets

Commercial Electrical Contractors: zoom in or out

ChatGPT names different companies nationwide, statewide and city by city.

Highlighted markets are live. The rest are on the weekly tracking schedule.