Company lists · Data refreshed September 2026
Top 25 Industrial automation contractors based in the United States
RevenueBase identified 4,357 industrial automation contractors headquartered in the United States as of September 2026 and tracks 98,909 professional contacts across them, including 37,418 with verified work emails. Houston is the largest hub.
This list covers industrial automation contractors 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 16, 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.
The 25 largest industrial automation contractors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,757 contacts → | ||||
Strong evidence “We began as a merit shop general industrial contractor back in 1979.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,216 contacts → | ||||
Partial evidence “Advanced Technology Services, Inc.(ATS) is a single source for industrial maintenance, technology and parts, offering a complete solution for support, training, monitoring and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,012 contacts → | ||||
Partial 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 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,907 contacts → | ||||
Strong evidence “FANUC America offers the most complete range of industry-leading products and services for industrial robotics, CNC systems, and factory automation solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,847 contacts → | ||||
Partial evidence “Our business is automation, and we envision a future in which people can do more, try more, and be more.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,159 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 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 982 contacts → | ||||
Partial evidence “Harris is a leading national mechanical contractor specializing in design and engineering, construction, controls, service, manufacturing, conveyors and end-to-end building…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 942 contacts → | ||||
Partial evidence “Convergix Automation Solutions designs, engineers and integrates hardware and software to automate its customers' operations.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 938 contacts → | ||||
Partial evidence “As a Partner Interstates is your trusted partner for electrical, automation, and operational technology needs.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 857 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 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 848 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 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 828 contacts → | ||||
Strong evidence “Radwell, established in 1979, is a global leader in industrial automation solutions, providing new, never-used, refurbished, obsolete, and hard-to-find automation, industrial…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 819 contacts → | ||||
Indirect evidence “McNaughton-McKay is exceeding customer expectations during every interaction and transaction.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 789 contacts → | ||||
Indirect evidence “FLANDERS, Leverage our legacy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 782 contacts → | ||||
Indirect evidence “WELCOME TO OUR WEBSITE!” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 751 contacts → | ||||
Indirect evidence “Your Possibility.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 655 contacts → | ||||
Strong evidence “Established in 1963, Baker Group is Iowa’s premier full-service specialty contractor-serving commercial, industrial, institutional, and mission-critical markets across the country.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 644 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 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 610 contacts → | ||||
Indirect evidence “E Tech Group is one of the largest engineering and system integration firms in the United States.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 597 contacts → | ||||
Indirect evidence “Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 547 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 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 533 contacts → | ||||
Indirect evidence “North Coast, family-owned and operated since 1913, is one of the largest and fastest growing electrical distributors in the nation with 43 locations operating in Washington…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 532 contacts → | ||||
Strong evidence “Corbins is an industrial electrical contractor.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 531 contacts → | ||||
Partial evidence “We’re a global omnichannel provider of product and service solutions for designers, builders, and maintainers of industrial equipment and operations to provide an unrivaled choice…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 512 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
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 automation contractors. 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 automation contractors.
- Partial evidence
- Its own public description names part of industrial automation contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name industrial automation contractors. 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 4,357 industrial automation contractors based in the United States
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Industrial automation contractors based in the United States at a glance
As of Sep 16, 2026Companies by employee count
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 4,357 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 automation contractors, 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 automation contractors”. 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 automation contractors), 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 automation contractors, 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, 37,418 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 16, 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 automation contractors 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 automation contractors, 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 automation contractors are there based in the United States?
RevenueBase identified 4,357 industrial automation contractors 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?
Performance Contractors, headquartered in Baton Rouge, tops this list with the largest team on record.
Which city has the most industrial automation contractors?
Houston leads with 91 headquartered companies, followed by Rochester (29) and Grand Rapids (27).
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 37,418 verified decision-maker contacts tracked across these 4,357 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 16, 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.
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