Company lists · Data refreshed September 2026
Top 25 Safety audit services based in the United States
RevenueBase identified 346 safety audit services headquartered in the United States as of September 2026 and tracks 2,197 professional contacts across them, including 769 with verified work emails. Houston is the largest hub.
This list covers safety audit services 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 29, 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.
The 25 largest safety audit services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 149 contacts → | ||||
Indirect evidence “QualSpec is a leading industrial inspection firm headquartered in Houston, Texas.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 103 contacts → | ||||
Partial evidence “Established in Site Safety is a national safety consulting, training, and management organization.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 88 contacts → | ||||
Partial evidence “Diversified Safety Services is a third-party safety consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 74 contacts → | ||||
Partial evidence “Occupational Services, Incorporated is a San Diego-based professional consulting firm providing services in the areas of environmental compliance, occupational health and safety…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 73 contacts → | ||||
Indirect evidence “Contract Hitch Personnel Inspection and Testing: • Certified Welding Inspectors • API Inspectors (510,570,653) • QA/QC Inspectors • NACE Coating Inspectors (Levels • I&E…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 57 contacts → | ||||
Indirect evidence “We are committed to the total wellbeing of your employees.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 45 contacts → | ||||
Partial evidence “We help you stay OSHA compliant and keep your employees safe with on-site occupational health, safety, and industrial hygiene services including: Audiometric Hearing Tests…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 40 contacts → | ||||
Indirect evidence “About Med-Tex Med-Tex Services, Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 34 contacts → | ||||
Indirect evidence “Founded in 1993, the primary mission of OSHA + Environmental Compliance Systems (OECS) is to provide OSHA, IH, and environmental compliance services to companies that do not have…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 33 contacts → | ||||
Partial evidence “Aquionix is an environmental and safety services company that is dedicated to assisting companies in their effort to meet the ever increasing demands of today's business and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 31 contacts → | ||||
Partial evidence “RMS is a privately owned safety consulting firm that provides nationwide support to a wide variety of industries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 29 contacts → | ||||
Partial evidence “Safety Compliance Services has been helping business and industry in complying with OSHA regulations and providing for the safety of their employees since 1993.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 28 contacts → | ||||
Partial evidence “At Hellman & Associates, our goal is to transform the marketplace by helping businesses think differently about their workplace health and safety challenges to protect businesses…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 28 contacts → | ||||
Partial evidence “Pekron Consulting, Inc.(Pekron) has been providing occupational health and safety solutions for our clients for 33 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 26 contacts → | ||||
Partial evidence “Since 1993, Safety Unlimited, Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 25 contacts → | ||||
Partial evidence “Established in 1986, EnviroMed Services focuses on Environmental Engineering and Testing as well as Occupational Health and Safety and Industrial Hygiene solutions that have…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 25 contacts → | ||||
Partial evidence “Lewellyn Technology is a national leader in workplace safety.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 25 contacts → | ||||
Indirect evidence “A.C.T.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 24 contacts → | ||||
Partial evidence “At Excelsior Safety, we help companies build safer, more compliant workplaces.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 24 contacts → | ||||
Partial evidence “Homecore Site Safety is the gold standard of construction safety.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 contacts → | ||||
Strong evidence “Air quality testing Environmental site assessments Mold and moisture Intrusion surveys Industrial Safety Audits Mock Safety Audits to find and mitigate employee dangers…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 17 contacts → | ||||
Partial evidence “Collier Safety Services provides the following services: Provide on site safety professionals, develop safety and health training programs, provide OSHA and MSHA training, develop…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 17 contacts → | ||||
Partial evidence “C&R Compliance LLC your Industrial Safety Specialists.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 16 contacts → | ||||
Indirect evidence “CCI Inspection Services Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 16 contacts → | ||||
Indirect evidence “Founded in Industrial Risk Control, LLC (IRC) brings decades of experience navigating complex U.S.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: safety audit services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names safety audit services.
- Partial evidence
- Its own public description names part of safety audit services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name safety audit services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 346 safety audit services based in the United States
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Safety audit services based in the United States at a glance
As of Sep 29, 2026Companies by employee count
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 346 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 safety audit services, 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 “safety audit services”. 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 safety audit services), 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 safety audit services, 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, 769 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 29, 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 safety audit services, 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 safety audit services are there based in the United States?
RevenueBase identified 346 safety audit services 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?
Qualspec, headquartered in Deer Park, tops this list with the largest team on record.
Which city has the most safety audit services?
Houston leads with 15 headquartered companies, followed by New York (10) and Bakersfield (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 769 verified decision-maker contacts tracked across these 346 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 29, 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.