Company lists · Data refreshed September 2026

Top 25 Electrical hazard assessment companies based in the United States

RevenueBase identified 428 electrical hazard assessment companies headquartered in the United States as of September 2026 and tracks 3,937 professional contacts across them, including 826 with verified work emails. Houston is the largest hub.

This list covers electrical hazard assessment companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
428Companies
3,937Contacts tracked
826Verified emails
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The 25 largest electrical hazard assessment companies based in the United States

Ranked by team size
Top 25 of 428 electrical hazard assessment companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical hazard assessment companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceMaryland Heights, MO, United StatesHQ checked Sep 19, 2026501-1,000653 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceWesterville, OH, United StatesHQ checked Sep 19, 2026201-500228 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceSavage, MN, United StatesHQ checked Sep 19, 202651-20098 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceHolbrook, MA, United StatesHQ checked Sep 19, 2026n/a91 contacts →

Partial evidence

“Specialists in Electrical Power Systems - Testing, Commissioning, Maintenance.”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceMedina, MN, United StatesHQ checked Sep 19, 202611-5082 contacts →

Partial evidence

“Delivering Outstanding products and services for electrical power systems We specialize in performing Arc Flash Analysis of your facility and training your team to deal with this…”

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceMadisonville, KY, United StatesHQ checked Sep 19, 2026501-1,00070 contacts →

Partial evidence

“Groves Electrical Services is a turnkey industrial and commercial electrical contractor taking projects from conception to completion nationwide.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceVista, CA, United StatesHQ checked Sep 19, 202651-20062 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceDallas, TX, United StatesHQ checked Sep 19, 202611-5060 contacts →

Partial evidence

Electrical Safety & Maintenance Safety Training | For over 59 years, AVO has been helping organizations, just like yours, create safe and reliable electrical systems through…”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceKansas City, MO, United StatesHQ checked Sep 19, 202651-20059 contacts →

Partial evidence

“Herzig Engineering is a nationally licensed electrical engineering firm located in Kansas City, MO specializing in Electrical Safety.”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceConverse, TX, United StatesHQ checked Sep 19, 202651-20058 contacts →

Partial evidence

“WELCOME Power Engineering Services is an Accredited, Full-Member of the International Electrical Testing Association (NETA), and a Registered Engineering Firm in 46 states.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceLanham, MD, United StatesHQ checked Sep 19, 2026201-50057 contacts →

Partial evidence

“ABM Electrical Power Solutions, LLC is an electrical power engineering, testing, and maintenance company based out of 4390 Parliament Pl, Lanham, Maryland, United States.”

Source: RevenueBase Database · checked Sep 19, 2026
12Strong evidenceLouisville, KY, United StatesHQ checked Sep 19, 202611-5045 contacts →

Strong evidence

“Since July 29, 2004, e-Hazard has provided a full suite of electrical and arc flash training, arc flash studies and consulting services.”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidencePasadena, CA, United StatesHQ checked Sep 19, 202611-5037 contacts →

Partial evidence

“Our mission is to ensure that electrical power systems are safe, efficient and reliable.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceRosharon, TX, United StatesHQ checked Sep 19, 202651-20036 contacts →

Partial evidence

“Tidal Power Services specializes in delivering expert solutions and analysis for all your electrical testing, maintenance, and engineering needs.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 19, 202651-20035 contacts →

Partial evidence

“The talented Field engineers at HIVOLT Advanced provide electrical testing and commissioning services in a safe and reliable manner.”

Source: RevenueBase Database · checked Sep 19, 2026
16Partial evidenceDurham, CT, United StatesHQ checked Sep 19, 202651-20035 contacts →

Partial evidence

“EPST is a NETA Certified, Independent Electrical Testing & Engineering Organization.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidencePost Falls, ID, United StatesHQ checked Sep 19, 202611-5030 contacts →

Partial evidence

“Safeguard Equipment is revolutionizing the electrical safety industry.”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceFletcher, NC, United StatesHQ checked Sep 19, 202651-20028 contacts →

Partial evidence

“Since 1981, A-American Electric has been keeping Western North Carolina families and businesses safe-one project at a time.”

Source: RevenueBase Database · checked Sep 19, 2026
19Partial evidenceRockville, MD, United StatesHQ checked Sep 19, 202611-5026 contacts →

Partial evidence

“Pioneer Power Group provides electrical power system studies for customers across the entire United States.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceTulsa, OK, United StatesHQ checked Sep 19, 202651-20025 contacts →

Indirect evidence

“Sentinel Power Services, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 19, 202651-20025 contacts →

Indirect evidence

“Lewellyn Technology is a national leader in workplace safety.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceLakeland, FL, United StatesHQ checked Sep 19, 202611-5024 contacts →

Indirect evidence

“TEAMWORKnet, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceSylvania, United StatesHQ checked Sep 19, 202611-5024 contacts →

Partial evidence

“Turner Electrical Services LLC is an Internationally Recognized, locally owned licensee of the TEGG Service Corporation that specializes in assisting facilities in the management…”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceMinneapolis, MN, United StatesHQ checked Sep 19, 202611-5023 contacts →

Partial evidence

“Some of the world's largest retailers work with us to design, build, and maintain their electrical, fire, and HVAC systems.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceWheat Ridge, CO, United StatesHQ checked Sep 19, 202611-5022 contacts →

Partial evidence

“Ennell Group Electrical Corp is a full-service electrical contracting company based in New York City and Colorado.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 428 electrical hazard assessment companies based in the United States

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Electrical hazard assessment companies based in the United States at a glance

As of Sep 19, 2026
21.0%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
3.7%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
256
11-50
124
51-200
34
201-500
5
501-1,000
2
1,001-5,000
2

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 428 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among electrical hazard assessment companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “electrical hazard assessment companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names electrical hazard assessment companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among electrical hazard assessment companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 826 across the full list. 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 September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names electrical hazard assessment companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many electrical hazard assessment companies are there based in the United States?

RevenueBase identified 428 electrical hazard assessment companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Electric Power Systems, headquartered in Maryland Heights, tops this list with the largest team on record.

Which city has the most electrical hazard assessment companies?

Houston leads with 16 headquartered companies, followed by Austin (5) and Atlanta (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 826 verified decision-maker contacts tracked across these 428 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 Smart Search, 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.