Company lists · Data refreshed September 2026

Top 25 Occupational safety consulting firms based in the United States

Name: Occupational safety consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 1,783 companies tracked

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, how directly it supports the match, 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 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 HQ checked on every row Match evidence 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. Evidence rates how directly each company's own description names occupational safety consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	J. J. Keller & Associates, INCIndirect evidence	Neenah, WI, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,577
	“J.” Source: company website · checked Sep 5, 2026
2	IEAStrong evidence	Brooklyn Park, MN, United StatesHQ checked Sep 5, 2026	n/a	982
	“The Institute for Environmental Assessment, Inc.(IEA) is small business committed to providing trusted environmental safety consulting services for private and public…” Source: company website · checked Sep 5, 2026
3	Haztek Safety ManagementPartial evidence	Medford, NJ, United StatesHQ checked Sep 5, 2026	201-500	298
	“We are the largest and most diverse team of full-time safety experts in North America.” Source: company website · checked Sep 5, 2026
4	ExamineticsPartial evidence	Overland Park, KS, United StatesHQ checked Sep 5, 2026	201-500	274
	“Examinetics is the leading provider of occupational health solutions, offering services across the entire employee lifecycle with several delivery methods.” Source: company website · checked Sep 5, 2026
5	Hillmann Consulting, LLCPartial evidence	Union, NJ, United StatesHQ checked Sep 5, 2026	201-500	209
	“Hillmann has been a well-recognized leader in the Environmental Health & Safety, Due Diligence & Remediation Management, and Construction Services industries since 1985.” Source: company website · checked Sep 5, 2026
6	MC ConsultantsPartial evidence	Carlsbad, CA, United StatesHQ checked Sep 5, 2026	51-200	196
	“Since 1989, MC’s team of professional consultants have leveraged their extensive construction backgrounds to deliver industry-leading construction consulting and forensic…” Source: company website · checked Sep 5, 2026
7	XL PRO Staffing And Consulting GroupStrong evidence	Dallas, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	182
	“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: company website · checked Sep 5, 2026
8	Core Safety GroupStrong evidence	Chattanooga, TN, United StatesHQ checked Sep 5, 2026	51-200	180
	“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: company website · checked Sep 5, 2026
9	Forensic Analytical Consulting Services, INCIndirect evidence	Hayward, CA, United StatesHQ checked Sep 5, 2026	51-200	172
	“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: company website · checked Sep 5, 2026
10	Atlas Field ServicesPartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	157
	“Atlas Field Services LLC (AFS) designs comprehensive, compliance-based training portfolios that offer business partners a premier safety training program, customized to their…” Source: company website · checked Sep 5, 2026
11	Safe T Professionals, LLCStrong evidence	Chandler, AZ, United StatesHQ checked Sep 5, 2026	51-200	130
	“We are a successful environment health and safety staffing/staff augmentation and consulting firm with services available worldwide.” Source: company website · checked Sep 5, 2026
12	Prime Occupational MedicinePartial evidence	Baton Rouge, LA, United StatesHQ checked Sep 5, 2026	51-200	130
	“PRIME Occupational Medicine is committed to providing high-quality occupational health services.” Source: company website · checked Sep 5, 2026
13	ArbillPartial evidence	Philadelphia, PA, United StatesHQ checked Sep 5, 2026	51-200	114
	“Since our founding in 1945, Arbill has been and continues to be a leader in workplace safety.” Source: company website · checked Sep 5, 2026
14	The EI Group, INCStrong evidence	Morrisville, NC, United StatesHQ checked Sep 5, 2026	51-200	111
	“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: company website · checked Sep 5, 2026
15	Sandalwood Engineering & ErgonomicsPartial evidence	Livonia, MI, United StatesHQ checked Sep 5, 2026	51-200	107
	“Sandalwood is an engineering and ergonomics consulting firm.” Source: company website · checked Sep 5, 2026
16	Fire & Risk Alliance, LLCPartial evidence	Washington Dc, MD, United StatesHQ checked Sep 5, 2026	51-200	106
	“The Fire & Risk Alliance was created under four basic principles: TRUST – To be our clients trusted partner in maintaining and improving safety.” Source: company website · checked Sep 5, 2026
17	Lebaron & Carroll InsurancePartial evidence	Mesa, AZ, United StatesHQ checked Sep 5, 2026	51-200	106
	“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: company website · checked Sep 5, 2026
18	Site SafetyStrong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	103
	“Established in Site Safety is a national safety consulting, training, and management organization.” Source: company website · checked Sep 5, 2026
19	Citadel EHSStrong evidence	Glendale, CA, United StatesHQ checked Sep 5, 2026	51-200	102
	“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: company website · checked Sep 5, 2026
20	Tricord ConsultingStrong evidence	Frisco, TX, United StatesHQ checked Sep 5, 2026	51-200	102
	“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: company website · checked Sep 5, 2026
21	Amerisafe GroupStrong evidence	Greensburg, PA, United StatesHQ checked Sep 5, 2026	51-200	99
	“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: company website · checked Sep 5, 2026
22	GLE Associates, INCPartial evidence	Tampa, FL, United StatesHQ checked Sep 5, 2026	51-200	88
	“GLE Associates is an environmental, facilities, industrial hygiene, and construction consulting firm, headquartered in Tampa, Florida, with offices throughout Florida and the…” Source: company website · checked Sep 5, 2026
23	Diversified Safety Services, LLCStrong evidence	Rosedale, MD, United StatesHQ checked Sep 5, 2026	51-200	88
	“Diversified Safety Services is a third-party safety consulting firm.” Source: company website · checked Sep 5, 2026
24	Code RED ConsultantsPartial evidence	Southborough, MA, United StatesHQ checked Sep 5, 2026	51-200	83
	“Code Red Consultants is a premier fire protection and life safety engineering firm dedicated to safeguarding the built environment.” Source: company website · checked Sep 5, 2026
25	Total Safety Consulting, LLCStrong evidence	Bayonne, NJ, United StatesHQ checked Sep 5, 2026	501-1,000	83
	“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: company website · 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

1-10Median size (employees)

HoustonLargest hub · 57 HQs

7,862Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

1,156

11-50

471

51-200

121

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

6,435

31–60

420

61–90

90–180

180+

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 evidence 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 SmartSearch, 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.
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 an evidence 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.

Occupational safety consulting firms by metro

Occupational safety consulting firms in Houston57
Occupational safety consulting firms in New York31

Frequently asked

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 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.