Company lists · Data refreshed September 2026
Top 23 Industrial control systems software companies based in the United States
RevenueBase identified 949 industrial control systems software companies headquartered in the United States as of September 2026 and tracks 46,138 professional contacts across them, including 16,418 with verified work emails and 13,816 with mobile numbers. Houston is the largest hub.
This list covers industrial control systems 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, how directly it supports the match, 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 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.
The 23 largest industrial control systems software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 20,541 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,001 | ||||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,227 | ||||
“PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 870 | ||||
“Prime Controls was established as a Main Automation Contractor to provide customers a sole source solution for Industrial Automation services and products.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 867 | ||||
“INTECH Automation & Intelligence is a globally renowned industrial automation & digitalization technology company.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 849 | ||||
“We love our customers and are committed to providing Better Automation and Controls Solutions, Products, Engineering, Services and Support to them.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 627 | ||||
“Setpoint Integrated Solutions, a Vytl Company is a leading integrated solutions and services provider in the process control industry.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 520 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 512 | ||||
“Reliability, safety, plant-wide solutions.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 362 | ||||
“Inductive Automation creates industrial software that empowers organizations to swiftly turn great ideas into reality by removing all technological and economic obstacles.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 283 | ||||
“Under the Red Lion brand, HMS offers secure, scalable data access and control from edge to cloud.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 264 | ||||
“Seeq Corporation develops software and services that accelerate industrial process analytics on industrial process data.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | ProconexStrong evidence | 235 | |||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 225 | ||||
“Since 1991, Applied Control Engineering (ACE) has prioritized close collaboration with our customers to design, implement, and support advanced control, automation, and…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 221 | ||||
“Avanceon, under VINCI Energies brand Actemium, is a systems integrator company that develops, executes, and supports automation/information solutions for manufacturing and utility…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 218 | ||||
“Vinson Process Controls is the leading provider for industrial automation solutions for Oil and Gas, Chemical and Petro-Chemical, Pulp and Paper, Power Generation, Refining and…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 212 | ||||
“Since 1969, Electro-Matic has helped transform American industry by supplying automation components and solutions to leading U.S.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 191 | ||||
“At Beckhoff, automation is our calling.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 175 | ||||
“Applied Control comes alongside you as a partner who understands your plant, your processes, and the pressure you face to deliver performance without interruption.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | VertechStrong evidence | 174 | |||
“Vertech is an industrial control systems integration firm providing a complete range of engineering and technical services.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | Weidmuller USAPartial evidence | 166 | |||
“Weidmuller USA is the driver of smart industrial connectivity and automation.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 161 | ||||
“AA Electric is your single source for machine control and automation specialty electrical products.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 150 | ||||
“Tridium, a global software and technology company, is the developer of the Niagara Framework®, a software platform that enables the integration of disparate systems and devices -…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 23 of 949 industrial control systems software companies based in the United States
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Industrial control systems software companies based in the United States at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
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 systems software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 systems software companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among industrial control systems 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 an evidence 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, 16,418 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 systems software companies by metro
- Industrial control systems software companies in Houston49
Frequently asked
How many industrial control systems software companies are there based in the United States?
RevenueBase identified 949 industrial control systems 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 systems software companies?
Houston leads with 49 headquartered companies, followed by Austin (10) and Atlanta (8).
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 16,418 verified decision-maker contacts tracked across these 949 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.
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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.
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