Company lists · Data refreshed September 2026

Top 25 Industrial control systems integrators based in the United States

RevenueBase identified 2,945 industrial control systems integrators headquartered in the United States as of September 2026 and tracks 69,448 professional contacts across them, including 29,832 with verified work emails. Houston is the largest hub.

This list covers industrial control systems integrators 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 28, 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 28, 2026 86% judged on-target in blind review
2,945Companies
69,448Contacts tracked
29,832Verified emails
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The 25 largest industrial control systems integrators based in the United States

Ranked by team size
Top 25 of 2,945 industrial control systems integrators based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to industrial control systems integrators: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceHoffman Estates, IL, United StatesHQ checked Sep 28, 202610001+5,707 contacts →

Strong evidence

“Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceTysons, VA, United StatesHQ checked Sep 28, 20265,001-10,0002,761 contacts →

Indirect evidence

“M.C.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceVernon Hills, IL, United StatesHQ checked Sep 28, 2026n/a2,012 contacts →

Indirect evidence

“The sole mission of Mitsubishi Electric Automation Americas, is to support the factory automation needs of North and Latin American customers with combined sales, marketing…”

Source: RevenueBase Database · checked Sep 28, 2026
4Strong evidenceBaton Rouge, LA, United StatesHQ checked Sep 28, 20261,001-5,0001,384 contacts →

Strong evidence

“ISC is an industrial engineering and construction company specializing in comprehensive electrical, instrumentation, and controls solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 2026201-5001,183 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 28, 2026
6Strong evidenceAurora, OH, United StatesHQ checked Sep 28, 20261,001-5,0001,159 contacts →

Strong evidence

“As one of the world's largest independent systems integrators, RoviSys delivers comprehensive automation, digital transformation, manufacturing execution (MES), Industrial AI…”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceAuburn Hills, MI, United StatesHQ checked Sep 28, 2026501-1,000942 contacts →

Indirect evidence

“Convergix Automation Solutions designs, engineers and integrates hardware and software to automate its customers' operations.”

Source: RevenueBase Database · checked Sep 28, 2026
8Strong evidenceLewisville, TX, United StatesHQ checked Sep 28, 20261,001-5,000857 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 28, 2026
9Partial evidenceBaton Rouge, LA, United StatesHQ checked Sep 28, 2026501-1,000848 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 28, 2026
10Partial evidenceBaton Rouge, LA, United StatesHQ checked Sep 28, 20261,001-5,000644 contacts →

Partial evidence

“The Newtron Group is one of the largest privately owned Specialty Industrial Construction companies in the United States and is among the nation's leading Industrial Electrical…”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceBaton Rouge, LA, United StatesHQ checked Sep 28, 2026501-1,000626 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 28, 2026
12Strong evidenceEden Prairie, MN, United StatesHQ checked Sep 28, 2026501-1,000623 contacts →

Strong evidence

“Wunderlich-Malec Engineering is a nationally recognized, 100% employee-owned leader in advanced engineering and control system solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceWest Chester, OH, United StatesHQ checked Sep 28, 2026501-1,000610 contacts →

Partial evidence

“E Tech Group is one of the largest engineering and system integration firms in the United States.”

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceHouston, TX, United StatesHQ checked Sep 28, 2026501-1,000552 contacts →

Strong evidence

“Our expertise encompasses the full spectrum of system technologies from pneumatic - hydraulic control systems to state of the art programmable solutions to chemical injection…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceAurora, OH, United StatesHQ checked Sep 28, 20261,001-5,000547 contacts →

Partial evidence

“As part of the RoviSys family of companies, we deliver vendor independent building automation, electrical power management, facility monitoring, and systems integration solutions…”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceLa Porte, TX, United StatesHQ checked Sep 28, 20261,001-5,000512 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 28, 2026
17Strong evidenceCovington, LA, United StatesHQ checked Sep 28, 202651-200467 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 28, 2026
18Strong evidenceEast Windsor, NJ, United StatesHQ checked Sep 28, 2026201-500455 contacts →

Strong evidence

“Thermo Systems is a full-service control systems integration partner, providing world-class automation solutions within the Energy, Life Sciences, and Mission Critical markets.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceShelby Twp., MI, United StatesHQ checked Sep 28, 2026501-1,000447 contacts →

Partial evidence

“Fori Automation, LLC is a global leader in the design, build, and integration of custom material handling, assembly, testing, and welding systems.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceMukilteo, WA, United StatesHQ checked Sep 28, 2026201-500443 contacts →

Indirect evidence

“Electroimpact is a highly experienced provider of factory automation and tooling solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceLong Beach, CA, United StatesHQ checked Sep 28, 2026201-500395 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 28, 2026
22Partial evidenceBruce Township, MI, United StatesHQ checked Sep 28, 2026501-1,000383 contacts →

Partial evidence

“R&E Automated Systems is an internationally recognized leader in automation, engineering and field service management.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceMaumee, OH, United StatesHQ checked Sep 28, 2026201-500382 contacts →

Indirect evidence

“Matrix Technologies Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceShoreview, MN, United StatesHQ checked Sep 28, 2026501-1,000379 contacts →

Indirect evidence

“From automated manufacturing of life saving medical devices, to safely dismantling Chernobyl, sending rockets into deep space, and adaptive manufacturing of aerospace components…”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceWarren, MI, United StatesHQ checked Sep 28, 2026501-1,000359 contacts →

Partial evidence

“Since 1937, Paslin has been a leading innovator in the concept, design, construction and deployment of manufacturing assembly and automation systems.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 2,945 industrial control systems integrators based in the United States

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Industrial control systems integrators based in the United States at a glance

As of Sep 28, 2026
43.0%Verified-email coverage
23.6Average contacts per company
11-50Median size (employees)
2.4%Largest-city concentration · Houston
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,264
11-50
1,173
51-200
380
201-500
82
501-1,000
25
1,001-5,000
14
5,001-10,000
1
10001+
3

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 2,945 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 industrial control systems integrators, 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 systems integrators”. 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 systems integrators), 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 systems integrators, 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, 29,832 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 28, 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 integrators by metro

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 systems integrators, 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 systems integrators are there based in the United States?

RevenueBase identified 2,945 industrial control systems integrators 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?

Convergint, headquartered in Hoffman Estates, tops this list with the largest team on record.

Which city has the most industrial control systems integrators?

Houston leads with 72 headquartered companies, followed by Atlanta (18) and Grand Rapids (16).

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 29,832 verified decision-maker contacts tracked across these 2,945 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 28, 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.