Company lists · Data refreshed September 2026

Top 24 Industrial control system software companies based in the United States

Name: Industrial control system 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 3, 2026 1,192 companies tracked

RevenueBase identified 1,192 industrial control system software companies headquartered in the United States as of September 2026 and tracks 62,139 professional contacts across them, including 20,425 with verified work emails and 18,272 with mobile numbers. Houston is the largest hub.

This list covers industrial control system 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 3, 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 3, 2026 86% judged on-target in blind review

1,192Companies

62,139Contacts tracked

20,425Verified emails

18,272Mobile numbers

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

The 24 largest industrial control system software companies based in the United States

Ranked by team size

Top 24 of 1,192 industrial control system software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to industrial control system 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	Rockwell Automation	Indirect evidence	Milwaukee, MA, United StatesHQ checked Sep 3, 2026	10001+	20,541 contacts →
	Indirect evidence “At Rockwell Automation, we connect the imaginations of people with the potential of technology to expand what is humanly possible, making the world more intelligent, more…” Source: RevenueBase Database · checked Sep 3, 2026
2	Toshiba	Partial evidence	Irvine, CA, United StatesHQ checked Sep 3, 2026	n/a	5,914 contacts →
	Partial evidence “For 150 years, Toshiba has been engineering solutions that drive progress, empower industries, and create a more resilient future.” Source: RevenueBase Database · checked Sep 3, 2026
3	Mitsubishi Electric Automation, INC	Indirect evidence	Vernon Hills, IL, United StatesHQ checked Sep 3, 2026	n/a	2,001 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 3, 2026
4	Intergraph	Partial evidence	Madison, AL, United StatesHQ checked Sep 3, 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 3, 2026
5	PAS	Partial evidence	Houston, TX, United StatesHQ checked Sep 3, 2026	201-500	1,227 contacts →
	Partial evidence “PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…” Source: RevenueBase Database · checked Sep 3, 2026
6	Englobal	Indirect evidence	Houston, TX, United StatesHQ checked Sep 3, 2026	201-500	1,185 contacts →
	Indirect evidence “Who We Are Englobal Founded in 1985, ENGlobal (NASDAQ: ENG) is a specialty engineering services firm that focuses on automation solutions and select EPCM projects for the energy…” Source: RevenueBase Database · checked Sep 3, 2026
7	Interstates	Indirect evidence	Sioux Center, IA, United StatesHQ checked Sep 3, 2026	1,001-5,000	937 contacts →
	Indirect evidence “As a Partner Interstates is your trusted partner for electrical, automation, and operational technology needs.” Source: RevenueBase Database · checked Sep 3, 2026
8	Prime Controls	Strong evidence	Lewisville, CO, United StatesHQ checked Sep 3, 2026	1,001-5,000	870 contacts →
	Strong evidence “Prime Controls was established as a Main Automation Contractor to provide customers a sole source solution for Industrial Automation services and products.” Source: RevenueBase Database · checked Sep 3, 2026
9	Intech Automation & Intelligence	Partial evidence	Houston, TX, United StatesHQ checked Sep 3, 2026	501-1,000	867 contacts →
	Partial evidence “INTECH Automation & Intelligence is a globally renowned industrial automation & digitalization technology company.” Source: RevenueBase Database · checked Sep 3, 2026
10	Awc, INC	Partial evidence	Baton Rouge, TX, United StatesHQ checked Sep 3, 2026	501-1,000	849 contacts →
	Partial evidence “We love our customers and are committed to providing Better Automation and Controls Solutions, Products, Engineering, Services and Support to them.” Source: RevenueBase Database · checked Sep 3, 2026
11	Puffer-Sweiven	Indirect evidence	Stafford, TX, United StatesHQ checked Sep 3, 2026	501-1,000	684 contacts →
	Indirect evidence “Puffer‑Sweiven has supported process operations for over 80 years-helping facilities run safer, smarter, and more reliably.” Source: RevenueBase Database · checked Sep 3, 2026
12	Setpoint Integrated Solutions, INC	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 3, 2026	501-1,000	627 contacts →
	Partial evidence “Setpoint Integrated Solutions, a Vytl Company is a leading integrated solutions and services provider in the process control industry.” Source: RevenueBase Database · checked Sep 3, 2026
13	Kimray, INC	Indirect evidence	Oklahoma City, TX, United StatesHQ checked Sep 3, 2026	501-1,000	521 contacts →
	Indirect evidence “Kimray is a global solutions partner in the energy industry.” Source: RevenueBase Database · checked Sep 3, 2026
14	Contech Control Services	Partial evidence	La Porte, TX, United StatesHQ checked Sep 3, 2026	1,001-5,000	520 contacts →
	Partial evidence “When we formed Contech in 1980, our goal was to create a specialized engineering and construction company to provide a full range of system independent services for process…” Source: RevenueBase Database · checked Sep 3, 2026
15	Bently Nevada, A Baker Hughes Business	Indirect evidence	Minden, NV, United StatesHQ checked Sep 3, 2026	5,001-10,000	512 contacts →
	Indirect evidence “Reliability, safety, plant-wide solutions.” Source: RevenueBase Database · checked Sep 3, 2026
16	Ardent Services, LLC	Strong evidence	Covington, LA, United StatesHQ checked Sep 3, 2026	51-200	472 contacts →
	Strong evidence “Ardent Services, LLC (Ardent) is a leading provider of high-quality power, control, process-automation, and electrical and instrumentation (E&I) services for process industries…” Source: RevenueBase Database · checked Sep 3, 2026
17	Mangan INC	Partial evidence	Long Beach, CA, United StatesHQ checked Sep 3, 2026	201-500	391 contacts →
	Partial evidence “Mangan Inc, an Automation & Engineering Firm, provides the highest quality services for the Refining, Gas & Oil, Pipeline, Renewable, Chemical, and Biopharm Industries.” Source: RevenueBase Database · checked Sep 3, 2026
18	Inductive Automation	Strong evidence	Folsom, CA, United StatesHQ checked Sep 3, 2026	201-500	362 contacts →
	Strong evidence “Inductive Automation creates industrial software that empowers organizations to swiftly turn great ideas into reality by removing all technological and economic obstacles.” Source: RevenueBase Database · checked Sep 3, 2026
19	RED Lion By HMS Networks	Partial evidence	York, PA, United StatesHQ checked Sep 3, 2026	201-500	283 contacts →
	Partial evidence “Under the Red Lion brand, HMS offers secure, scalable data access and control from edge to cloud.” Source: RevenueBase Database · checked Sep 3, 2026
20	Seeq Corporation	Strong evidence	Seattle, WA, United StatesHQ checked Sep 3, 2026	51-200	264 contacts →
	Strong evidence “Seeq Corporation develops software and services that accelerate industrial process analytics on industrial process data.” Source: RevenueBase Database · checked Sep 3, 2026
21	Proconex	Strong evidence	Royersford, NJ, United StatesHQ checked Sep 3, 2026	201-500	235 contacts →
	Strong evidence “For over 75 years, Proconex has been a leading provider of Process Automation Control Systems, Valves and Control Devices, and related technologies and services.” Source: RevenueBase Database · checked Sep 3, 2026
22	Applied Control Engineering, INC	Partial evidence	Newark, TX, United StatesHQ checked Sep 3, 2026	201-500	225 contacts →
	Partial evidence “Since 1991, Applied Control Engineering (ACE) has prioritized close collaboration with our customers to design, implement, and support advanced control, automation, and…” Source: RevenueBase Database · checked Sep 3, 2026
23	Control Southern	Partial evidence	Suwanee, TN, United StatesHQ checked Sep 3, 2026	51-200	223 contacts →
	Partial evidence “Control Southern is an integrated solutions provider helping manufacturing plants in the Southeast run better, faster, and smarter through automation and customized valve…” Source: RevenueBase Database · checked Sep 3, 2026
24	Equipment & Controls, INC	Strong evidence	Lawrence, OH, United StatesHQ checked Sep 3, 2026	201-500	222 contacts →
	Strong evidence “Founded in 1956, ECI specializes in providing best-in-class process control systems, automation products, pumps, and related solutions for manufacturing and industrial customers…” Source: RevenueBase Database · checked Sep 3, 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: industrial control system 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 industrial control system software companies.
Partial evidence: Its own public description names part of industrial control system software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial control system 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 24 of 1,192 industrial control system software companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 20,425 reachable decision-makers.

Free signup · no credit card

View the full list →

Industrial control system software companies based in the United States at a glance

As of Sep 3, 2026

32.9%Verified-email coverage

29.4%Mobile-number coverage

52.1Average contacts per company

11-50Median size (employees)

6.1%Largest-city concentration · Houston

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

511

11-50

426

51-200

171

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

1,91631–60

11,89361–90

6,44490–180

172180+

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 industrial control system 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 “industrial control system 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 industrial control system 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 industrial control system 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, 20,425 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 3, 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.

Industrial control system software companies by metro

Industrial control system software companies in Houston73

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 industrial control system 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 industrial control system software companies are there based in the United States?

RevenueBase identified 1,192 industrial control system 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?

Rockwell Automation, headquartered in Chelmsford, tops this list with the largest team on record.

Which city has the most industrial control system software companies?

Houston leads with 73 headquartered companies, followed by Austin (13) and Atlanta (10).

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 20,425 verified decision-maker contacts tracked across these 1,192 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 3, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,192 industrial control system software companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Industrial control system software companies 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 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.