Company lists · Data refreshed September 2026

Top 25 Industrial compliance consulting firms based in the United States

Name: Industrial compliance 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 28, 2026 2,920 companies tracked

RevenueBase identified 2,920 company matches for industrial compliance consulting firms associated with the United States as of September 2026 and tracks 31,789 professional contacts across them, including 12,735 with verified work emails. Houston is the largest hub.

This list covers company matches for industrial compliance consulting firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

2,920Companies

31,789Contacts tracked

12,735Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest industrial compliance consulting firms based in the United States

Ranked by team size

Top 25 of 2,920 company matches for industrial compliance consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Alliance Technical Group	Exact match	Decatur, AL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	956 contacts →
	Exact match “Alliance is a new kind of environmental services company-powered by innovation, focused on service, and committed to client success.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	CT Corporation	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	788 contacts →
	Exact match “CT Corporation helps small businesses, corporations, and law firms around the world manage their most critical business and legal compliance responsibilities.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Antea Group USA	Exact match	St. Paul, MN, United StatesHQ recorded Sep 28, 2026	1,001-5,000	658 contacts →
	Exact match “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	GSA National	Exact match	Fairfax, VA, United StatesHQ recorded Sep 28, 2026	201-500	558 contacts →
	Exact match “GSA National has been helping government contractors ensure compliance and streamline costs since 1991.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Enhesa	Exact match	Arlington, VA, United StatesHQ recorded Sep 28, 2026	201-500	474 contacts →
	Exact match “At Enhesa we empower the world’s largest businesses to achieve compliance, manage risk, and drive sustainability with clear, actionable insights.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Groundwater & Environmental Services, INC	Exact match	Wall Township, NJ, United StatesHQ recorded Sep 28, 2026	201-500	447 contacts →
	Exact match “We are Groundwater & Environmental Services, Inc, better known as GES.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	ROUX	Exact match	Islandia, NY, United StatesHQ recorded Sep 28, 2026	201-500	433 contacts →
	Exact match “Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	P2s	Exact match	Long Beach, CA, United StatesHQ recorded Sep 28, 2026	201-500	375 contacts →
	Exact match “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	APA Engineering INC	Exact match	Mount Laurel, NJ, United StatesHQ recorded Sep 28, 2026	201-500	364 contacts →
	Exact match “APA Engineering Inc has been a leader in providing Compliance, Engineering, IT, and Sourcing services since With over twenty years in business, we are dedicated to providing the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Protect LLC	Exact match	Wichita, KS, United StatesHQ recorded Sep 28, 2026	501-1,000	332 contacts →
	Exact match “PROtect is a leading national provider of reliability, risk, and compliance services to the refining, petrochemical, renewable fuels, manufacturing, food & beverage, fertilizer…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	All4	Exact match	Kimberton, PA, United StatesHQ recorded Sep 28, 2026	201-500	331 contacts →
	Exact match “ALL4 is a global consulting firm committed to shaping a sustainable future through innovative environmental, health, and safety (EHS) and digital solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Registrar Corp	Exact match	Hampton, VA, United StatesHQ recorded Sep 28, 2026	51-200	317 contacts →
	Exact match “Registrar Corp is your trusted partner helping you navigate global regulatory requirements with expert services, innovative software solutions and comprehensive online compliance…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Hyde Engineering Consulting	Exact match	Louisville, CO, United StatesHQ recorded Sep 28, 2026	201-500	253 contacts →
	Exact match “Hyde E+C is an international engineering consulting firm that helps companies operate more efficiently, get products to market more quickly, meet regulatory requirements more…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Tanknology	Exact match	Austin, TX, United StatesHQ recorded Sep 28, 2026	201-500	232 contacts →
	Exact match “Tanknology is the world's largest provider of tank testing and environmental compliance services for petroleum systems.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	August Mack Environmental, INC	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 28, 2026	51-200	210 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Hillmann Consulting, LLC	Exact match	Union, NJ, United StatesHQ recorded Sep 28, 2026	201-500	209 contacts →
	Exact match “Hillmann has been a well-recognized leader in the Environmental Health & Safety, Due Diligence & Remediation Management, and Construction Services industries since 1985.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Tradewin	Exact match	Peabody, MA, United StatesHQ recorded Sep 28, 2026	201-500	189 contacts →
	Exact match “Tradewin, established in 1997, is a leading provider of import and export advice worldwide.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Milrose Consultants	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	201-500	174 contacts →
	Exact match “Milrose is the nation’s premier building lifecycle firm, offering fully integrated services in Permitting, Code Consulting, Municipal Compliance, Special Inspections…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Forensic Analytical Consulting Services, INC	Exact match	Hayward, CA, United StatesHQ recorded Sep 28, 2026	51-200	172 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Ecorp Consulting, INC	Exact match	Rocklin, CA, United StatesHQ recorded Sep 28, 2026	51-200	166 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Cleanair Engineering	Exact match	Palatine, IL, United StatesHQ recorded Sep 28, 2026	51-200	152 contacts →
	Exact match “Since its founding in 1972, CleanAir has an established reputation for excellence on projects of all sizes, ranging from boiler, APC equipment and cooling tower efficiency testing…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Harbor Compliance	Exact match	Lancaster, PA, United StatesHQ recorded Sep 28, 2026	201-500	150 contacts →
	Exact match “We provide innovative compliance solutions by embracing complexity and making it simple.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Qualspec	Exact match	Deer Park, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	149 contacts →
	Exact match “QualSpec is a leading industrial inspection firm headquartered in Houston, Texas.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Trendsource, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	11-50	141 contacts →
	Exact match “TrendSource helps businesses document and measure compliance across employment, consumer reporting, government, finance, health care, and retail.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Mostardi Platt	Exact match	Elmhurst, IL, United StatesHQ recorded Sep 28, 2026	51-200	140 contacts →
	Exact match “Since the passage of original environmental legislation nearly four decades ago, both private and public industry have turned to Mostardi Platt for guidance in complying with air…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “industrial compliance consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 2,920 industrial compliance consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 12,735 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Industrial compliance consulting firms based in the United States at a glance

As of Sep 28, 2026

40.1%Verified-email coverage

10.9Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,908

11-50

793

51-200

166

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 2,920 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United States whose business descriptions match “industrial compliance consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 12,735 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Industrial compliance consulting firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “industrial compliance consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial compliance consulting firms are there based in the United States?

RevenueBase identified 2,920 company matches for industrial compliance consulting firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Alliance Technical Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most industrial compliance consulting firms?

Houston leads with 87 company records, followed by New York (67) and Dallas (32).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 12,735 professional contacts with verified work emails tracked across these 2,920 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,920 industrial compliance consulting firms based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Industrial compliance consulting firms by geography

Browse the directory

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.