Company lists · Data refreshed September 2026

Top 25 Process engineering software companies based in the United States

Name: Process engineering software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 207 companies tracked

RevenueBase identified 207 process engineering software companies headquartered in the United States as of September 2026 and tracks 6,844 professional contacts across them, including 1,941 with verified work emails. Houston is the largest hub.

This list covers process engineering software companies 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 29, 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 29, 2026 86% judged on-target in blind review

207Companies

6,844Contacts tracked

1,941Verified emails

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The 25 largest process engineering software companies based in the United States

Ranked by team size

Top 25 of 207 process engineering software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to process engineering software companies: 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	Intergraph	Partial evidence	Madison, AL, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,365 contacts →
	Partial evidence “Octave provides mission-critical software that empowers organizations to make informed decisions across every stage of the asset lifecycle, Design, Build, Operate and Protect -…” Source: RevenueBase Database · checked Sep 29, 2026
2	MSC Software	Partial evidence	Newport Beach, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	633 contacts →
	Partial evidence “MSC Software, part of Cadence's physical systems simulation division, is one of the ten original software companies and a global leader in helping product manufacturers to advance…” Source: RevenueBase Database · checked Sep 29, 2026
3	Ingenero	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	501-1,000	532 contacts →
	Strong evidence “Ingenero's goal is to be the best process engineering firm by delivering the highest quality service and software solutions at the lowest cost.” Source: RevenueBase Database · checked Sep 29, 2026
4	Comsol, INC	Strong evidence	Burlington, MA, United StatesHQ checked Sep 29, 2026	501-1,000	521 contacts →
	Strong evidence “COMSOL develops mathematical modeling software for driving new breakthroughs in physics and engineering.” Source: RevenueBase Database · checked Sep 29, 2026
5	Datacor, INC	Partial evidence	Florham Park, NJ, United StatesHQ checked Sep 29, 2026	201-500	317 contacts →
	Partial evidence “Datacor is a leading provider of industry-specific solutions that help process manufacturers, chemical distributors, and engineers grow, run, and elevate their business.” Source: RevenueBase Database · checked Sep 29, 2026
6	ADF Engineering, INC	Strong evidence	Miamisburg, NE, United StatesHQ checked Sep 29, 2026	51-200	286 contacts →
	Strong evidence “ADF Engineering provides comprehensive Process and Facility engineering services to the food, feed, biofuels, bioscience, and consumer products industries.” Source: RevenueBase Database · checked Sep 29, 2026
7	MECS	Partial evidence	Chesterfield, MO, United StatesHQ checked Sep 29, 2026	201-500	273 contacts →
	Partial evidence “MECS is the global leader in sulfuric acid process technology and related high performance products custom engineered for acid plant production environments.” Source: RevenueBase Database · checked Sep 29, 2026
8	Cd-Adapco	Partial evidence	Melville, NY, United StatesHQ checked Sep 29, 2026	201-500	247 contacts →
	Partial evidence “CD-adapco is a Siemens business focused on CFD engineering simulation with a unique vision for Multidisciplinary Design eXploration (MDX).” Source: RevenueBase Database · checked Sep 29, 2026
9	Chemtex	Partial evidence	Wilmington, NC, United StatesHQ checked Sep 29, 2026	201-500	230 contacts →
	Partial evidence “Chemtex is a global engineering and technology company.” Source: RevenueBase Database · checked Sep 29, 2026
10	VAREC	Indirect evidence	Peachtree Corners (atlanta), GA, United StatesHQ checked Sep 29, 2026	51-200	128 contacts →
	Indirect evidence “Varec has been a leading innovator in the petroleum and chemical sectors for over eight decades – working with industry leaders to pioneer inventory tank gauging instrumentation…” Source: RevenueBase Database · checked Sep 29, 2026
11	Dataparc	Strong evidence	Washougal, WA, United StatesHQ checked Sep 29, 2026	51-200	113 contacts →
	Strong evidence “dataPARC is a comprehensive industrial analytics software suite that helps process manufacturers optimize operations, boost productivity, and drive sustainability.” Source: RevenueBase Database · checked Sep 29, 2026
12	Koch Modular	Partial evidence	Paramus, NJ, United StatesHQ checked Sep 29, 2026	51-200	99 contacts →
	Partial evidence “Koch Modular Process Systems, LLC (Koch Modular) specializes in the design and supply of modular process systems for the worldwide Chemical Processing Industry.” Source: RevenueBase Database · checked Sep 29, 2026
13	Fluid Quip Technologies, LLC	Strong evidence	Cedar Rapids, IA, United StatesHQ checked Sep 29, 2026	51-200	81 contacts →
	Strong evidence “Fluid Quip Technologies (FQT) is a global technology innovation leader in advanced engineering, process design, construction, and technology integration for the ethanol and…” Source: RevenueBase Database · checked Sep 29, 2026
14	Chemstress	Indirect evidence	Akron, OH, United StatesHQ checked Sep 29, 2026	51-200	81 contacts →
	Indirect evidence “Why Chemstress?” Source: RevenueBase Database · checked Sep 29, 2026
15	Bryan Research & Engineering, LLC	Strong evidence	Bryan, TX, United StatesHQ checked Sep 29, 2026	51-200	78 contacts →
	Strong evidence “For over 50 years, Bryan Research & Engineering has provided the energy industry with process simulation software renowned for its ability to accurately and efficiently predict…” Source: RevenueBase Database · checked Sep 29, 2026
16	Autodesk Water Infrastructure	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	63 contacts →
	Partial evidence “We’re building innovative, industry-leading software for the water industry.” Source: RevenueBase Database · checked Sep 29, 2026
17	Verantis Corporation	Strong evidence	Middleburg Heights, OH, United StatesHQ checked Sep 29, 2026	51-200	52 contacts →
	Strong evidence “Headquartered in the United States, Verantis Corporation is a global leader in engineering services and environmental systems that focus on process improvement in a wide range of…” Source: RevenueBase Database · checked Sep 29, 2026
18	Zajac LLC	Partial evidence	Saco, ME, United StatesHQ checked Sep 29, 2026	51-200	51 contacts →
	Partial evidence “Zajac specializes in high purity liquid processing and packaging systems for the Food, Dairy, Pharmaceutical, Biotech and Personal Care industries.” Source: RevenueBase Database · checked Sep 29, 2026
19	Process Engineering Associates, LLC	Strong evidence	Oak Ridge, TN, United StatesHQ checked Sep 29, 2026	51-200	48 contacts →
	Strong evidence “PROCESS Engineering Associates, LLC (PROCESS) provides engineering services exclusively via highly qualified chemical engineers and specializes only in process engineering (no…” Source: RevenueBase Database · checked Sep 29, 2026
20	Quality Manufacturing Systems, Inc. Qmsi	Indirect evidence	Lavergne, TN, United StatesHQ checked Sep 29, 2026	11-50	48 contacts →
	Indirect evidence “WE ARE A TEAM OF ENGINEERS, COMPUTER PROGRAMMERS, AND DESIGNERS DRIVEN TO MEET OUR CLIENTS GLOBAL DEMAND FOR AUTOMATION.” Source: RevenueBase Database · checked Sep 29, 2026
21	Toadfly Technologies, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	44 contacts →
	Partial evidence “Toadfly Technologies is an innovative industrial software organization that brings solutions to your exact needs.” Source: RevenueBase Database · checked Sep 29, 2026
22	Spec Process Engineering & Construction	Strong evidence	Tewksbury, MA, United StatesHQ checked Sep 29, 2026	11-50	43 contacts →
	Strong evidence “SPEC Process Engineering & Construction is a process engineering firm based in the Boston area and primarily serves the North East United States.” Source: RevenueBase Database · checked Sep 29, 2026
23	Codeware	Partial evidence	Sarasota, FL, United StatesHQ checked Sep 29, 2026	51-200	40 contacts →
	Partial evidence “We deliver specialized software to meet the evolving needs of industries such as oil & gas, petrochemical, and aerospace.” Source: RevenueBase Database · checked Sep 29, 2026
24	Njbsoft, LLC	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 29, 2026	11-50	38 contacts →
	Partial evidence “NJBSoft was created with a vision to provide technically advanced, state-of-the-art, value-added technological solutions to the Civil, Environmental and Municipal Engineering…” Source: RevenueBase Database · checked Sep 29, 2026
25	Statistics & Control, INC	Strong evidence	West Des Moines, IA, United StatesHQ checked Sep 29, 2026	51-200	38 contacts →
	Strong evidence “Statistics & Control, Inc,(S&C), headquartered in West Des Moines, IA, USA, develops and manufactures Advanced Process Control (APC) and turbomachinery control software as well as…” Source: RevenueBase Database · checked Sep 29, 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: process engineering software companies. 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 process engineering software companies.
Partial evidence: Its own public description names part of process engineering software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name process engineering software companies. 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 207 process engineering software companies based in the United States

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Process engineering software companies based in the United States at a glance

As of Sep 29, 2026

28.4%Verified-email coverage

33.1Average contacts per company

11-50Median size (employees)

12.6%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 207 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 process engineering software companies, 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 “process engineering software companies”. 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 process engineering software companies), 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 process engineering software companies, 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, 1,941 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 29, 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.

Process engineering software companies by metro

Process engineering software companies in Houston26

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 process engineering software companies, 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 process engineering software companies are there based in the United States?

RevenueBase identified 207 process engineering software companies 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?

Intergraph, headquartered in Madison, tops this list with the largest team on record.

Which city has the most process engineering software companies?

Houston leads with 26 headquartered companies, followed by Cincinnati (5) and Atlanta (3).

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 1,941 verified decision-maker contacts tracked across these 207 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 29, 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.