Company lists · Data refreshed September 2026

Top 25 Hazard assessment consultants based in the United States

Name: Hazard assessment consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 930 companies tracked

RevenueBase identified 930 hazard assessment consultants headquartered in the United States as of September 2026 and tracks 9,969 professional contacts across them, including 3,921 with verified work emails. Houston is the largest hub.

This list covers hazard assessment consultants 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 20, 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 20, 2026 86% judged on-target in blind review

930Companies

9,969Contacts tracked

3,921Verified emails

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The 25 largest hazard assessment consultants based in the United States

Ranked by team size

Top 25 of 930 hazard assessment consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to hazard assessment consultants: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Antea Group USA	Indirect evidence	St Paul, MN, United StatesHQ checked Sep 20, 2026	1,001-5,000	658 contacts →
	Indirect evidence “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Source: RevenueBase Database · checked Sep 20, 2026
2	Hillmann Consulting, LLC	Indirect evidence	Union, NJ, United StatesHQ checked Sep 20, 2026	201-500	209 contacts →
	Indirect 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 20, 2026
3	Bakerrisk	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 20, 2026	201-500	202 contacts →
	Indirect evidence “Risk Management.” Source: RevenueBase Database · checked Sep 20, 2026
4	Forensic Analytical Consulting Services, INC	Indirect evidence	Hayward, CA, United StatesHQ checked Sep 20, 2026	51-200	172 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 20, 2026
5	Environmental Health & Engineering	Indirect evidence	Newton, MA, United StatesHQ checked Sep 20, 2026	51-200	170 contacts →
	Indirect evidence “EH & E delivers integrated environmental, engineering, and health and safety solutions that help businesses and institutions safeguard their assets, improve operations and boost…” Source: RevenueBase Database · checked Sep 20, 2026
6	Ensolum, LLC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 20, 2026	51-200	136 contacts →
	Indirect evidence “OUR MISSION is to combine sustainable environmental solutions with forward-thinking, cost-effective, innovative, and value-added technologies that balance our clients’ economic…” Source: RevenueBase Database · checked Sep 20, 2026
7	The EI Group, INC	Indirect evidence	Morrisville, NC, United StatesHQ checked Sep 20, 2026	51-200	111 contacts →
	Indirect 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 20, 2026
8	Fire & Risk Alliance, LLC	Indirect evidence	Washington Dc, MD, United StatesHQ checked Sep 20, 2026	51-200	106 contacts →
	Indirect 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 20, 2026
9	Site Safety	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	201-500	103 contacts →
	Indirect evidence “Established in Site Safety is a national safety consulting, training, and management organization.” Source: RevenueBase Database · checked Sep 20, 2026
10	Amerisafe Group	Indirect evidence	Greensburg, PA, United StatesHQ checked Sep 20, 2026	51-200	99 contacts →
	Indirect 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 20, 2026
11	A-Tech Consulting, INC	Indirect evidence	Orange, CA, United StatesHQ checked Sep 20, 2026	51-200	97 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
12	Alta Environmental And Infrastructure	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 20, 2026	51-200	93 contacts →
	Indirect evidence “At Alta Environmental & Infrastructure (Alta EI), we partner with clients to build and protect what matters most, delivering comprehensive engineering, environmental, and health &…” Source: RevenueBase Database · checked Sep 20, 2026
13	Yorke Engineering, LLC	Indirect evidence	San Juan Capistrano, CA, United StatesHQ checked Sep 20, 2026	51-200	92 contacts →
	Indirect evidence “Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services.” Source: RevenueBase Database · checked Sep 20, 2026
14	GLE Associates, INC	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 20, 2026	51-200	88 contacts →
	Indirect 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 20, 2026
15	Environmental Standards Montrose Environmental Group	Indirect evidence	Valley Forge, PA, United StatesHQ checked Sep 20, 2026	51-200	83 contacts →
	Indirect evidence “Environmental Standards is now part of Onterris.” Source: RevenueBase Database · checked Sep 20, 2026
16	Total Safety Consulting, LLC	Indirect evidence	Bayonne, NJ, United StatesHQ checked Sep 20, 2026	501-1,000	83 contacts →
	Indirect 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 20, 2026
17	The Sigma Group, INC	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 20, 2026	51-200	81 contacts →
	Indirect evidence “The Sigma Group (Sigma) is a 100% employee owned, award-winning consulting engineering firm headquartered in Southeastern Wisconsin.” Source: RevenueBase Database · checked Sep 20, 2026
18	Mabbett & Associates, INC	Indirect evidence	Stoneham, MA, United StatesHQ checked Sep 20, 2026	51-200	79 contacts →
	Indirect evidence “Established in 1980, Mabbett & Associates, Inc.(Mabbett) is a recognized leader in delivering comprehensive environmental, health, and safety consulting and engineering services.” Source: RevenueBase Database · checked Sep 20, 2026
19	ISI Environmental	Indirect evidence	Wichita, KS, United StatesHQ checked Sep 20, 2026	51-200	79 contacts →
	Indirect evidence “iSi provides environmental, health and safety facility support services to a wide variety of industries across the U.S.” Source: RevenueBase Database · checked Sep 20, 2026
20	Acutech Consulting Group	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 20, 2026	51-200	76 contacts →
	Indirect evidence “AcuTech Consulting Group is a specialty consulting firm with a unique background in process safety, chemical security, and emergency management.” Source: RevenueBase Database · checked Sep 20, 2026
21	Occupational Services, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 20, 2026	11-50	74 contacts →
	Indirect 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 20, 2026
22	SES Environmental	Indirect evidence	Fort Wayne, IN, United StatesHQ checked Sep 20, 2026	11-50	73 contacts →
	Indirect evidence “We are a full service EH & S consulting and contracting firm based in the Midwestern United States, serving companies throughout the world.” Source: RevenueBase Database · checked Sep 20, 2026
23	Legacy Safety & Consulting	Indirect evidence	Hobbs, NM, United StatesHQ checked Sep 20, 2026	51-200	73 contacts →
	Indirect evidence “With over 32 years in business and 250+ collective years of industry experience, we are a company whose objective is to provide innovative safety solutions by equipping you with…” Source: RevenueBase Database · checked Sep 20, 2026
24	Property Solutions INC	Indirect evidence	Moorestown, NJ, United StatesHQ checked Sep 20, 2026	51-200	68 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
25	Safety Training & Consulting	Indirect evidence	Lithia, FL, United StatesHQ checked Sep 20, 2026	51-200	65 contacts →
	Indirect evidence “Safety Training & Consulting (STC) experts provide customers with a high level of expertise, specialty knowledge and regulatory experience, enhancing the planning, execution and…” Source: RevenueBase Database · checked Sep 20, 2026

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: hazard assessment consultants. 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 hazard assessment consultants.
Partial evidence: Its own public description names part of hazard assessment consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hazard assessment consultants. 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 930 hazard assessment consultants based in the United States

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Hazard assessment consultants based in the United States at a glance

As of Sep 20, 2026

39.3%Verified-email coverage

10.7Average contacts per company

1-10Median size (employees)

4.0%Largest-city concentration · Houston

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

578

11-50

275

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 930 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 hazard assessment consultants, 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 “hazard assessment consultants”. 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 hazard assessment consultants), 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 hazard assessment consultants, 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, 3,921 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 20, 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.

Hazard assessment consultants by metro

Hazard assessment consultants in Houston37

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 hazard assessment consultants, 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 hazard assessment consultants are there based in the United States?

RevenueBase identified 930 hazard assessment consultants 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?

Antea Group USA, headquartered in St Paul, tops this list with the largest team on record.

Which city has the most hazard assessment consultants?

Houston leads with 37 headquartered companies, followed by New York (15) and Denver (12).

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 3,921 verified decision-maker contacts tracked across these 930 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 20, 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.