Company lists · Data refreshed September 2026

Top 25 Occupational safety consulting firms based in the United States

RevenueBase identified 1,783 occupational safety consulting firms headquartered in the United States as of September 2026 and tracks 18,424 professional contacts across them, including 6,895 with verified work emails and 7,862 with mobile numbers. Houston is the largest hub.

This list covers occupational safety consulting firms 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 5, 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 5, 2026 86% judged on-target in blind review
1,783Companies
18,424Contacts tracked
6,895Verified emails
7,862Mobile numbers
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The 25 largest occupational safety consulting firms based in the United States

Ranked by team size
Top 25 of 1,783 occupational safety consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to occupational safety consulting firms: 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
1Indirect evidenceNeenah, WI, United StatesHQ checked Sep 5, 20261,001-5,0001,577 contacts →

Indirect evidence

“J.”

Source: RevenueBase Database · checked Sep 5, 2026
2Strong evidenceBrooklyn Park, MN, United StatesHQ checked Sep 5, 2026n/a982 contacts →

Strong evidence

“The Institute for Environmental Assessment, Inc.(IEA) is small business committed to providing trusted environmental safety consulting services for private and public…”

Source: RevenueBase Database · checked Sep 5, 2026
3Partial evidenceMedford, NJ, United StatesHQ checked Sep 5, 2026201-500298 contacts →

Partial evidence

“We are the largest and most diverse team of full-time safety experts in North America.”

Source: RevenueBase Database · checked Sep 5, 2026
4Partial evidenceOverland Park, KS, United StatesHQ checked Sep 5, 2026201-500274 contacts →

Partial evidence

“Examinetics is the leading provider of occupational health solutions, offering services across the entire employee lifecycle with several delivery methods.”

Source: RevenueBase Database · checked Sep 5, 2026
5Partial evidenceUnion, NJ, United StatesHQ checked Sep 5, 2026201-500209 contacts →

Partial evidence

“Hillmann has been a well-recognized leader in the Environmental Health & Safety, Due Diligence & Remediation Management, and Construction Services industries since 1985.”

Source: RevenueBase Database · checked Sep 5, 2026
6Partial evidenceCarlsbad, CA, United StatesHQ checked Sep 5, 202651-200196 contacts →

Partial evidence

“Since 1989, MC’s team of professional consultants have leveraged their extensive construction backgrounds to deliver industry-leading construction consulting and forensic…”

Source: RevenueBase Database · checked Sep 5, 2026
7Strong evidenceDallas, TX, United StatesHQ checked Sep 5, 20261,001-5,000182 contacts →

Strong evidence

“XL Pro Consulting Group is a leading full-service Light Industrial Staffing and Safety Consulting firm headquartered in Dallas, Texas, with operations in DFW, Houston, Austin, San…”

Source: RevenueBase Database · checked Sep 5, 2026
8Strong evidenceChattanooga, TN, United StatesHQ checked Sep 5, 202651-200180 contacts →

Strong evidence

“About CORE Safety QUALIFICATIONS: Our leadership members at CORE Safety Group have degrees in Occupational Safety Management and hold credentials that are certified through the…”

Source: RevenueBase Database · checked Sep 5, 2026
9Indirect evidenceHayward, CA, United StatesHQ checked Sep 5, 202651-200172 contacts →

Indirect evidence

“With a staff of over 150 employees in the San Francisco, Sacramento, Los Angeles, San Diego, Modesto, Bakersfield, Fresno, Portland, Chicago, and Grand Rapids offices, Forensic…”

Source: RevenueBase Database · checked Sep 5, 2026
10Partial evidenceHouston, TX, United StatesHQ checked Sep 5, 2026201-500157 contacts →

Partial evidence

“Atlas Field Services LLC (AFS) designs comprehensive, compliance-based training portfolios that offer business partners a premier safety training program, customized to their…”

Source: RevenueBase Database · checked Sep 5, 2026
11Strong evidenceChandler, AZ, United StatesHQ checked Sep 5, 202651-200130 contacts →

Strong evidence

“We are a successful environment health and safety staffing/staff augmentation and consulting firm with services available worldwide.”

Source: RevenueBase Database · checked Sep 5, 2026
12Partial evidenceBaton Rouge, LA, United StatesHQ checked Sep 5, 202651-200130 contacts →

Partial evidence

“PRIME Occupational Medicine is committed to providing high-quality occupational health services.”

Source: RevenueBase Database · checked Sep 5, 2026
13Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 5, 202651-200114 contacts →

Partial evidence

“Since our founding in 1945, Arbill has been and continues to be a leader in workplace safety.”

Source: RevenueBase Database · checked Sep 5, 2026
14Strong evidenceMorrisville, NC, United StatesHQ checked Sep 5, 202651-200111 contacts →

Strong evidence

“The EI Group, Inc.(EI) is an environmental, health and safety consulting firm headquartered in Research Triangle Park, North Carolina, with branch offices strategically located…”

Source: RevenueBase Database · checked Sep 5, 2026
15Partial evidenceLivonia, MI, United StatesHQ checked Sep 5, 202651-200107 contacts →

Partial evidence

“Sandalwood is an engineering and ergonomics consulting firm.”

Source: RevenueBase Database · checked Sep 5, 2026
16Partial evidenceWashington Dc, MD, United StatesHQ checked Sep 5, 202651-200106 contacts →

Partial evidence

“The Fire & Risk Alliance was created under four basic principles: TRUST – To be our clients trusted partner in maintaining and improving safety.”

Source: RevenueBase Database · checked Sep 5, 2026
17Partial evidenceMesa, AZ, United StatesHQ checked Sep 5, 202651-200106 contacts →

Partial evidence

“We give driven business owners the tools and support they need to take control of risk, costly safety issues, and ever-increasing insurance costs so they can be free to spend more…”

Source: RevenueBase Database · checked Sep 5, 2026
18Strong evidenceNew York, NY, United StatesHQ checked Sep 5, 2026201-500103 contacts →

Strong evidence

“Established in Site Safety is a national safety consulting, training, and management organization.”

Source: RevenueBase Database · checked Sep 5, 2026
19Strong evidenceGlendale, CA, United StatesHQ checked Sep 5, 202651-200102 contacts →

Strong evidence

“Founded in 1993, Citadel EHS provides comprehensive environmental, health, safety, and sustainability consulting solutions to meet the needs of both the public and private sectors.”

Source: RevenueBase Database · checked Sep 5, 2026
20Strong evidenceFrisco, TX, United StatesHQ checked Sep 5, 202651-200102 contacts →

Strong evidence

“TRICORD Consulting, LLC is a leading firm of environmental, health, and safety (EHS) specialists that dedicate our engineering and technical talents to serving others first.”

Source: RevenueBase Database · checked Sep 5, 2026
21Strong evidenceGreensburg, PA, United StatesHQ checked Sep 5, 202651-20099 contacts →

Strong evidence

“With offices in Pittsburgh, Roselle, and Chicago, Amerisafe Group, offers full-service safety consulting, training, rescue, and occupational health services for all types of…”

Source: RevenueBase Database · checked Sep 5, 2026
22Partial evidenceTampa, FL, United StatesHQ checked Sep 5, 202651-20088 contacts →

Partial evidence

“GLE Associates is an environmental, facilities, industrial hygiene, and construction consulting firm, headquartered in Tampa, Florida, with offices throughout Florida and the…”

Source: RevenueBase Database · checked Sep 5, 2026
23Strong evidenceRosedale, MD, United StatesHQ checked Sep 5, 202651-20088 contacts →

Strong evidence

“Diversified Safety Services is a third-party safety consulting firm.”

Source: RevenueBase Database · checked Sep 5, 2026
24Partial evidenceSouthborough, MA, United StatesHQ checked Sep 5, 202651-20083 contacts →

Partial evidence

“Code Red Consultants is a premier fire protection and life safety engineering firm dedicated to safeguarding the built environment.”

Source: RevenueBase Database · checked Sep 5, 2026
25Strong evidenceBayonne, NJ, United StatesHQ checked Sep 5, 2026501-1,00083 contacts →

Strong evidence

“Total Safety Consulting (TSC) understands the intense planning needed to ensure the safety of your workers and the public-and the cost of not doing it right.”

Source: RevenueBase Database · checked Sep 5, 2026

Showing 25 of 1,783 occupational safety consulting firms based in the United States

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Occupational safety consulting firms based in the United States at a glance

As of Sep 5, 2026
37.4%Verified-email coverage
42.7%Mobile-number coverage
10.3Average contacts per company
1-10Median size (employees)
3.2%Largest-city concentration · Houston
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
1,156
11-50
471
51-200
121
201-500
22
501-1,000
3
1,001-5,000
6
5,001-10,000
1
10001+
2

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 occupational safety consulting firms, 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 “occupational safety consulting firms”. 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 occupational safety consulting firms), 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 occupational safety consulting firms, 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, 6,895 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 5, 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 occupational safety consulting firms, 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 occupational safety consulting firms are there based in the United States?

RevenueBase identified 1,783 occupational safety consulting firms 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?

J. J. Keller & Associates, INC, headquartered in Neenah, tops this list with the largest team on record.

Which city has the most occupational safety consulting firms?

Houston leads with 57 headquartered companies, followed by New York (31) and Chicago (18).

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 6,895 verified decision-maker contacts tracked across these 1,783 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 5, 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.