Company lists · Data refreshed September 2026

Top 25 Chemical consulting consultants based in the United States

Name: Chemical consulting 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 30, 2026 811 companies tracked

RevenueBase identified 811 chemical consulting consultants headquartered in the United States as of September 2026 and tracks 8,016 professional contacts across them, including 2,895 with verified work emails. Houston is the largest hub.

This list covers chemical consulting 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 30, 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 30, 2026 86% judged on-target in blind review

811Companies

8,016Contacts tracked

2,895Verified emails

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The 25 largest chemical consulting consultants based in the United States

Ranked by team size

Top 25 of 811 chemical consulting consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to chemical consulting 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	The Vincit Group	Partial evidence	Chattanooga, TN, United StatesHQ checked Sep 30, 2026	5,001-10,000	476 contacts →
	Partial evidence “The Vincit Group is a vertically-integrated organization of member companies that provides a single-source solution for chemical services, contract management, and automation and…” Source: RevenueBase Database · checked Sep 30, 2026
2	GFS Chemicals	Partial evidence	Powell, OH, United StatesHQ checked Sep 30, 2026	51-200	195 contacts →
	Partial evidence “We don’t just make chemicals.” Source: RevenueBase Database · checked Sep 30, 2026
3	Verdantas Flow Labs	Partial evidence	Holden, MA, United StatesHQ checked Sep 30, 2026	51-200	154 contacts →
	Partial evidence “Since 1894, Verdantas Flow Labs (formerly Alden) has been a recognized leader in the field of applied fluid dynamic consulting.” Source: RevenueBase Database · checked Sep 30, 2026
4	GRSA	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 30, 2026	51-200	151 contacts →
	Indirect evidence “GRSA is a full service professional engineering company providing process and detailed engineering services for a broad range of upstream, midstream, and downstream petrochemical…” Source: RevenueBase Database · checked Sep 30, 2026
5	Ortec INC	Partial evidence	Easley, SC, United StatesHQ checked Sep 30, 2026	201-500	139 contacts →
	Partial evidence “Ortec is a custom chemical manufacturing and research company that helps our customers reach their market goals through our Technical Expertise, Quality Systems, Regulatory…” Source: RevenueBase Database · checked Sep 30, 2026
6	SDS Petroleum Consultants	Partial evidence	Tyler, TX, United StatesHQ checked Sep 30, 2026	51-200	122 contacts →
	Partial evidence “Welcome to SDS Petroleum Consultants company page In Scott Stovall founded SDS Petroleum Consultants L.L.C.” Source: RevenueBase Database · checked Sep 30, 2026
7	Smith & Burgess	Indirect evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	111 contacts →
	Indirect evidence “Smith & Burgess is an industry-leading Process Safety Management (PSM) provider driven to increase process safety by delivering innovative solutions and PSM compliance results.” Source: RevenueBase Database · checked Sep 30, 2026
8	CJB Industries, INC	Partial evidence	Valdosta, GA, United StatesHQ checked Sep 30, 2026	51-200	110 contacts →
	Partial evidence “At CJB Industries, we deliver solutions to your chemical manufacturing challenges.” Source: RevenueBase Database · checked Sep 30, 2026
9	Perfex Chemical Solutions	Partial evidence	Clinton, OK, United StatesHQ checked Sep 30, 2026	201-500	101 contacts →
	Partial evidence “Founded by industry veterans, Perfex Chemical Solutions is a leading provider of chemical services for the oil and gas industry.” Source: RevenueBase Database · checked Sep 30, 2026
10	Pegasustsi	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 30, 2026	51-200	93 contacts →
	Indirect evidence “PegasusTSI is a private, Florida-based company where people matter, where your voice is heard and where decisions are made with PegasusTSI’s business wellbeing and our team…” Source: RevenueBase Database · checked Sep 30, 2026
11	Yorke Engineering, LLC	Indirect evidence	San Juan Capistrano, CA, United StatesHQ checked Sep 30, 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 30, 2026
12	Environmental Standards Montrose Environmental Group	Indirect evidence	Valley Forge, PA, United StatesHQ checked Sep 30, 2026	51-200	83 contacts →
	Indirect evidence “Environmental Standards is now part of Onterris.” Source: RevenueBase Database · checked Sep 30, 2026
13	Acutech Consulting Group	Strong evidence	Mclean, VA, United StatesHQ checked Sep 30, 2026	51-200	76 contacts →
	Strong 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 30, 2026
14	Occupational Services, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 30, 2026	11-50	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 30, 2026
15	Interstate Chemical CO	Indirect evidence	Rock Island, IL, United StatesHQ checked Sep 30, 2026	11-50	71 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
16	Chemicalsafety	Partial evidence	Las Vegas, NV, United StatesHQ checked Sep 30, 2026	51-200	67 contacts →
	Partial evidence “ChemicalSafety provides industry-leading environmental technology for chemical, facility, and hazardous waste management, as well as compliance with local, national and…” Source: RevenueBase Database · checked Sep 30, 2026
17	Homeyer Consulting Services, INC	Indirect evidence	Tewksbury, MA, United StatesHQ checked Sep 30, 2026	11-50	66 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
18	Plus Group, A Salas O'brien Company	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 30, 2026	51-200	65 contacts →
	Indirect evidence “Plus Group companies joined Salas O'Brien in February of 2023.” Source: RevenueBase Database · checked Sep 30, 2026
19	Sage ATC Environmental Consulting	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	201-500	63 contacts →
	Partial evidence “Sage ATC Environmental Consulting is now Atlas.” Source: RevenueBase Database · checked Sep 30, 2026
20	Fauske & Associates	Partial evidence	Burr Ridge, IL, United StatesHQ checked Sep 30, 2026	51-200	60 contacts →
	Partial evidence “Fauske & Associates (FAI) is a world leader in nuclear, industrial and chemical process safety.” Source: RevenueBase Database · checked Sep 30, 2026
21	Whitman	Partial evidence	Somerset, NJ, United StatesHQ checked Sep 30, 2026	11-50	57 contacts →
	Partial evidence “Whitman is a full-service environmental, engineering, energy, waste management and EH & S compliance consulting firm with more than 37 years of professional experience.” Source: RevenueBase Database · checked Sep 30, 2026
22	Alliant Corporation	Partial evidence	Knoxville, TN, United StatesHQ checked Sep 30, 2026	51-200	56 contacts →
	Partial evidence “Alliant provides consulting and professional services for technical and scientific disciplines serving commercial clients and federal and municipal governments for over 20 years.” Source: RevenueBase Database · checked Sep 30, 2026
23	Carnow, Conibear & Assoc., LTD	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	11-50	52 contacts →
	Indirect evidence “Carnow, Conibear & Assoc, Ltd.(Carnow Conibear), a minority-owned, woman-owned and veteran-owned business, was established in 1975.” Source: RevenueBase Database · checked Sep 30, 2026
24	Trinity Consultants - Safebridge	Strong evidence	Sunnyvale, CA, United StatesHQ checked Sep 30, 2026	51-200	50 contacts →
	Strong evidence “SafeBridge is the premier resource for high-level safety and health consulting to the pharmaceutical, biotechnology, and specialty chemicals industries.” Source: RevenueBase Database · checked Sep 30, 2026
25	Pilko & Associates	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	11-50	50 contacts →
	Partial evidence “We are the trusted Advisor to corporate officers and boards on mitigating Operational/EHS Risks and unlocking value for global energy, chemical and industrial companies.” Source: RevenueBase Database · checked Sep 30, 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: chemical consulting 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 chemical consulting consultants.
Partial evidence: Its own public description names part of chemical consulting consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name chemical consulting 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 811 chemical consulting consultants based in the United States

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Chemical consulting consultants based in the United States at a glance

As of Sep 30, 2026

36.1%Verified-email coverage

9.9Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

573

11-50

160

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 811 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 chemical consulting 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 “chemical consulting 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 chemical consulting 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 chemical consulting 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, 2,895 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 30, 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.

Chemical consulting consultants by metro

Chemical consulting consultants in Houston50

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 chemical consulting 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 chemical consulting consultants are there based in the United States?

RevenueBase identified 811 chemical consulting 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?

The Vincit Group, headquartered in Chattanooga, tops this list with the largest team on record.

Which city has the most chemical consulting consultants?

Houston leads with 50 headquartered companies, followed by New York (11) and Boston (9).

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 2,895 verified decision-maker contacts tracked across these 811 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 30, 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.