Company lists · Data refreshed November 2026

Top 25 Data center electrical maintenance services based in the United States

RevenueBase identified 928 company matches for data center electrical maintenance services associated with the United States as of November 2026 and tracks 15,600 professional contacts across them, including 5,587 with verified work emails. Houston is the largest hub.

This list covers company matches for data center electrical maintenance services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
928Companies
15,600Contacts tracked
5,587Verified emails
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The 25 largest data center electrical maintenance services based in the United States

Ranked by team size
Top 25 of 928 company matches for data center electrical maintenance services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIrving, OK, United StatesHQ recorded Nov 6, 20261,001-5,0001,324 contacts →

Exact match

“Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMaryland Heights, MI, United StatesHQ recorded Nov 6, 2026501-1,000678 contacts →

Exact match

“Electric Power Systems is an independent electrical testing & engineering organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchEagan, MN, United StatesHQ recorded Nov 6, 20261,001-5,000572 contacts →

Exact match

“Hunt Electric is a national electrical design, build, and maintenance firm based in Eagan, MN.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPortland, OR, United StatesHQ recorded Nov 6, 20261,001-5,000541 contacts →

Exact match

“Our lives function on a power grid.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSt. Louis, MO, United StatesHQ recorded Nov 6, 2026501-1,000453 contacts →

Exact match

“A full-service electrical contractor since 1902, providing capability, performance, and legendary innovation in new construction, design-build, low-voltage systems, energy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCarrollton, TX, United StatesHQ recorded Nov 6, 20261,001-5,000429 contacts →

Exact match

“Concentric is the first national industrial power services organization delivering forklift and critical power as well as maintenance solutions that ensure uninterrupted…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 2026201-500293 contacts →

Exact match

“CH Reynolds was founded in 1983, primarily as an Electrical Contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchItasca, IL, United StatesHQ recorded Nov 6, 2026501-1,000290 contacts →

Exact match

“Electrical and communication services including design, installation, testing, long-term service, and maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMinneapolis, MN, United StatesHQ recorded Nov 6, 2026201-500278 contacts →

Exact match

“DC Group delivers one-stop maintenance and emergency service solutions for every make and model of uninterruptible power supply (UPS) equipment built since the 1980s including…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWesterville, SC, United StatesHQ recorded Nov 6, 2026201-500270 contacts →

Exact match

“In business since 1971, Electrical Reliability Services, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchTallmadge, OH, United StatesHQ recorded Nov 6, 2026201-500219 contacts →

Exact match

“SDMyers is the industry leader in transformer and substation maintenance and electric power system reliability.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchArlington Heights, IL, United StatesHQ recorded Nov 6, 2026501-1,000198 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLincoln, OK, United StatesHQ recorded Nov 6, 202651-200179 contacts →

Exact match

“VOSS provides comprehensive support for your facility, from installation and service to the long-term maintenance of your electrical, lighting, and technology systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchKennesaw, NJ, United StatesHQ recorded Nov 6, 202651-200176 contacts →

Exact match

“Rubicon Technical Services (RTS) offers innovative solutions for commissioning, testing, optimizing, operating, and maintaining critical facilities that depend on electrical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchOdenton, MD, United StatesHQ recorded Nov 6, 2026501-1,000170 contacts →

Exact match

“Today's electrical infrastructure requires a level of quality control that only the best trained and most knowledgeable electrical contractors can master.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026201-500154 contacts →

Exact match

“McMillan Electric is a fast growing full service Electrical Contractor serving the San Francisco Bay Area since 1965.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchDes Moines, IA, United StatesHQ recorded Nov 6, 2026501-1,000149 contacts →

Exact match

“EPI Power is a licensed electrical contractor that specializes in many key market sectors such as industrial, data centers, power generation, renewable energy, and more.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCarlsbad, CA, United StatesHQ recorded Nov 6, 2026201-500132 contacts →

Exact match

“For over four decades, Neal Electric has been at the forefront of delivering proficient and reliable electrical services across Southern California.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAmesbury, MA, United StatesHQ recorded Nov 6, 20265,001-10,000130 contacts →

Exact match

“BGIS | Critical Solutions Group is a provider of data center services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBellevue, WA, United StatesHQ recorded Nov 6, 2026201-500110 contacts →

Exact match

“Titan Electric is a full-service electrical contractor specializing in commercial, industrial, and residential electrical services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchWest Chester, PA, United StatesHQ recorded Nov 6, 20261,001-5,000108 contacts →

Exact match

“Mission Critical Group (MCG) stands apart as an end-to-end power systems and solutions provider, accelerating time-to-power in mission critical environments with unmatched speed…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBradenton, FL, United StatesHQ recorded Nov 6, 202611-50103 contacts →

Exact match

“Since 1974, United Electric has served homeowners and businesses throughout Manatee, Sarasota, and Charlotte counties with dependable electrical expertise and responsive local…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026201-500100 contacts →

Exact match

“Metro Electric provides turnkey electrical contracting services for the building and construction industry in San Francisco and Silicon Valley.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSavage, MN, United StatesHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“Master Electric is a full service electrical contractor servicing the upper mid-west since 1973, providing commercial/industrial, multi-family, communication/data/fire/safety with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBethel, CT, United StatesHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“Quality Uptime Services is one of the nation’s leading independent critical power service organizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 928 data center electrical maintenance services based in the United States

See the full list, filter by size, metro and specialty, and access 5,587 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Data center electrical maintenance services based in the United States at a glance

As of Nov 6, 2026
35.8%Verified-email coverage
16.8Average contacts per company
11-50Median size (employees)
3.3%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
421
11-50
316
51-200
133
201-500
34
501-1,000
9
1,001-5,000
7
5,001-10,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 928 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “data center electrical maintenance services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 5,587 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Data center electrical maintenance services by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “data center electrical maintenance services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data center electrical maintenance services are there based in the United States?

RevenueBase identified 928 company matches for data center electrical maintenance services associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Shermco Industries tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most data center electrical maintenance services?

Houston leads with 31 company records, followed by Miami (13) and Dallas (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,587 professional contacts with verified work emails tracked across these 928 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.