Company lists · Data refreshed October 2026

Top 25 Chemical process consultants based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 635 companies tracked

RevenueBase identified 635 company matches for chemical process consultants associated with the United States as of October 2026 and tracks 9,192 professional contacts across them, including 3,453 with verified work emails. Houston is the largest hub.

This list covers company matches for chemical process consultants 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 October 9, 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 Oct 9, 2026 How this list was built

635Companies

9,192Contacts tracked

3,453Verified emails

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The 25 largest chemical process consultants based in the United States

Ranked by team size

Top 25 of 635 company matches for chemical process consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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	Ingenero	Exact match	Houston, TX, United StatesHQ recorded Oct 9, 2026	501-1,000	551 contacts →
	Exact match “Ingenero's goal is to be the best process engineering firm by delivering the highest quality service and software solutions at the lowest cost.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	The Vincit Group	Exact match	Chattanooga, TN, United StatesHQ recorded Oct 9, 2026	5,001-10,000	488 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	MECS	Exact match	Chesterfield, MO, United StatesHQ recorded Oct 9, 2026	201-500	286 contacts →
	Exact match “MECS is the global leader in sulfuric acid process technology and related high performance products custom engineered for acid plant production environments.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	BSI Engineering	Exact match	Mason, OH, United StatesHQ recorded Oct 9, 2026	201-500	247 contacts →
	Exact match “BSI Engineering is a full-service engineering consulting firm dedicated to delivering innovative, efficient, and effective solutions across various industries.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Elessent Clean Technologies	Exact match	St. Louis, MO, United StatesHQ recorded Oct 9, 2026	201-500	216 contacts →
	Exact match “Elessent Clean Technologies is a global leader in process technologies to drive sustainability and carbon neutrality in the metals, fertilizer, chemicals and oil refining…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	GFS Chemicals	Exact match	Powell, OH, United StatesHQ recorded Oct 9, 2026	51-200	206 contacts →
	Exact match “We don’t just make chemicals.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	GRSA	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 9, 2026	51-200	155 contacts →
	Exact match “GRSA is a full service professional engineering company providing process and detailed engineering services for a broad range of upstream, midstream, and downstream petrochemical…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Edge Engineering And Science, LLC	Exact match	Houston, TX, United StatesHQ recorded Oct 9, 2026	51-200	123 contacts →
	Exact match “Edge Engineering & Science, LLC (EDGE) is a privately owned professional services firm headquartered in Houston, Texas.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Smith & Burgess	Exact match	Houston, TX, United StatesHQ recorded Oct 9, 2026	51-200	117 contacts →
	Exact match “Smith & Burgess is an industry-leading Process Safety Management (PSM) provider driven to increase process safety by delivering innovative solutions and PSM compliance results.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	Yorke Engineering, LLC	Exact match	San Juan Capistrano, CA, United StatesHQ recorded Oct 9, 2026	51-200	99 contacts →
	Exact match “Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Pegasustsi	Exact match	Tampa, FL, United StatesHQ recorded Oct 9, 2026	51-200	96 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Zymeflow	Exact match	Houston, TX, United StatesHQ recorded Oct 9, 2026	51-200	91 contacts →
	Exact match “ZymeFlow® is the global leader in chemical decontamination of process equipment in refinery, petrochemical, gas, and specialty markets.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Calvary Industries	Exact match	Fairfield, OH, United StatesHQ recorded Oct 9, 2026	51-200	90 contacts →
	Exact match “Calvary Industries was founded in 1983 as a chemical compounding supplier and manufacturer.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Chemstress	Exact match	Akron, OH, United StatesHQ recorded Oct 9, 2026	51-200	86 contacts →
	Exact match “Why Chemstress?” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	Occupational Services, INC	Exact match	San Diego, CA, United StatesHQ recorded Oct 9, 2026	11-50	74 contacts →
	Exact match “Occupational Services, Incorporated is a San Diego-based professional consulting firm providing services in the areas of environmental compliance, occupational health and safety…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Water Tech, INC	Exact match	Fort Smith, AR, United StatesHQ recorded Oct 9, 2026	51-200	73 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Cgrs INC	Exact match	Fort Collins, CO, United StatesHQ recorded Oct 9, 2026	51-200	72 contacts →
	Exact match “We deliver quality solutions with integrity and expertise, every time.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Acutech Consulting Group	Exact match	Mclean, VA, United StatesHQ recorded Oct 9, 2026	51-200	72 contacts →
	Exact match “AcuTech Consulting Group is a specialty consulting firm with a unique background in process safety, chemical security, and emergency management.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Progressive Design, INC	Exact match	Midlothian, VA, United StatesHQ recorded Oct 9, 2026	51-200	71 contacts →
	Exact match “Progressive Design, Inc.(PDI) is a private, family-owned, Heavy Industrial Engineering & Design Consulting firm that provides valued engineering services.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	SGS Sulphur Experts	Exact match	Houston, TX, United StatesHQ recorded Oct 9, 2026	51-200	69 contacts →
	Exact match “In late 2021 SGS acquired a majority stake in Sulphur Experts.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Enginuity Global LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 9, 2026	11-50	68 contacts →
	Exact match “Simplifying a complex world.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Chemicalsafety	Exact match	Las Vegas, NV, United StatesHQ recorded Oct 9, 2026	51-200	68 contacts →
	Exact match “ChemicalSafety provides industry-leading environmental technology for chemical, facility, and hazardous waste management, as well as compliance with local, national and…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Bepex International LLC	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 9, 2026	51-200	65 contacts →
	Exact match “With roots dating back to 1897, Bepex has been providing process development and custom industrial scale process systems for the food, chemical, mining, dairy and polymer…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Plus Group, A Salas O'brien Company	Exact match	Cincinnati, OH, United StatesHQ recorded Oct 9, 2026	51-200	65 contacts →
	Exact match “Plus Group companies joined Salas O'Brien in February of 2023.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Whitman	Exact match	Somerset, NJ, United StatesHQ recorded Oct 9, 2026	11-50	63 contacts →
	Exact match “Whitman is a full-service environmental, engineering, energy, waste management and EH & S compliance consulting firm with more than 37 years of professional experience.” Recorded in the RevenueBase company graph · Oct 9, 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 “chemical process consultants”. 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 635 chemical process consultants based in the United States

See the full list, filter by size, metro and specialty, and access 3,453 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Chemical process consultants based in the United States at a glance

As of Oct 9, 2026

37.6%Verified-email coverage

14.5Average contacts per company

1-10Median size (employees)

6.8%Largest-city concentration · Houston

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

388

11-50

158

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 635 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 “chemical process consultants” 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 3,453 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 October 9, 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.

Chemical process consultants by metro

Chemical process consultants in Houston43

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 “chemical process consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many chemical process consultants are there based in the United States?

RevenueBase identified 635 company matches for chemical process consultants associated with the United States as of October 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?

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

Which city has the most chemical process consultants?

Houston leads with 43 company records, followed by Baton Rouge (8) and Atlanta (7).

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 3,453 professional contacts with verified work emails tracked across these 635 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 October 9, 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.