Company lists · Data refreshed September 2026

Top 25 Automation system design services based in the United States

Name: Automation system design services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 2,583 companies tracked

RevenueBase identified 2,583 automation system design services headquartered in the United States as of September 2026 and tracks 46,480 professional contacts across them, including 17,814 with verified work emails. Houston is the largest hub.

This list covers automation system design services 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 30, 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 30, 2026 86% judged on-target in blind review

2,583Companies

46,480Contacts tracked

17,814Verified emails

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The 25 largest automation system design services based in the United States

Ranked by team size

Top 25 of 2,583 automation system design services based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to automation system design services: 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	Mitsubishi Electric Automation, INC	Partial evidence	Vernon Hills, IL, United StatesHQ checked Sep 30, 2026	n/a	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 30, 2026
2	Englobal	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	201-500	1,183 contacts →
	Partial 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 30, 2026
3	Rovisys	Strong evidence	Aurora, OH, United StatesHQ checked Sep 30, 2026	1,001-5,000	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 30, 2026
4	Convergix Automation Solutions	Strong evidence	Auburn Hills, MI, United StatesHQ checked Sep 30, 2026	501-1,000	942 contacts →
	Strong evidence “Convergix Automation Solutions designs, engineers and integrates hardware and software to automate its customers' operations.” Source: RevenueBase Database · checked Sep 30, 2026
5	Interstates	Partial evidence	Sioux Center, IA, United StatesHQ checked Sep 30, 2026	1,001-5,000	938 contacts →
	Partial evidence “As a Partner Interstates is your trusted partner for electrical, automation, and operational technology needs.” Source: RevenueBase Database · checked Sep 30, 2026
6	Awc, INC	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 30, 2026	501-1,000	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 30, 2026
7	E Tech Group	Partial evidence	West Chester, OH, United StatesHQ checked Sep 30, 2026	501-1,000	610 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 30, 2026
8	Rovisys Building Technologies	Strong evidence	Aurora, OH, United StatesHQ checked Sep 30, 2026	1,001-5,000	547 contacts →
	Strong 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 30, 2026
9	Thermo Systems	Strong evidence	East Windsor, NJ, United StatesHQ checked Sep 30, 2026	201-500	455 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 30, 2026
10	Fori Automation, LLC A Lincoln Electric Company	Strong evidence	Shelby Twp., MI, United StatesHQ checked Sep 30, 2026	501-1,000	447 contacts →
	Strong 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 30, 2026
11	Electroimpact	Partial evidence	Mukilteo, WA, United StatesHQ checked Sep 30, 2026	201-500	443 contacts →
	Partial evidence “Electroimpact is a highly experienced provider of factory automation and tooling solutions.” Source: RevenueBase Database · checked Sep 30, 2026
12	R&e Automated	Strong evidence	Bruce Township, MI, United StatesHQ checked Sep 30, 2026	501-1,000	383 contacts →
	Strong evidence “R&E Automated Systems is an internationally recognized leader in automation, engineering and field service management.” Source: RevenueBase Database · checked Sep 30, 2026
13	Matrix Technologies, INC	Indirect evidence	Maumee, OH, United StatesHQ checked Sep 30, 2026	201-500	382 contacts →
	Indirect evidence “Matrix Technologies Inc.” Source: RevenueBase Database · checked Sep 30, 2026
14	PAR Systems	Indirect evidence	Shoreview, MN, United StatesHQ checked Sep 30, 2026	501-1,000	379 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 30, 2026
15	Paslin	Strong evidence	Warren, MI, United StatesHQ checked Sep 30, 2026	501-1,000	359 contacts →
	Strong 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 30, 2026
16	Ermco, INC	Indirect evidence	Greenwood, IN, United StatesHQ checked Sep 30, 2026	201-500	304 contacts →
	Indirect evidence “From our beginning in 1962 as a small electrical maintenance company in downtown Indianapolis with a staff of three, ERMCO, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
17	ATS Automation, INC	Strong evidence	Renton, WA, United StatesHQ checked Sep 30, 2026	201-500	287 contacts →
	Strong evidence “ATS, established in 1986, specializes in custom engineered and installed Building Automation Systems control solutions for buildings’ mechanical and electrical systems, allowing…” Source: RevenueBase Database · checked Sep 30, 2026
18	Koops Automation Systems	Strong evidence	Holland, MI, United StatesHQ checked Sep 30, 2026	201-500	277 contacts →
	Strong evidence “Specializing in factory automation systems, Koops designs and builds innovative special machines and automated equipment for leading, world-class manufacturers across a broad…” Source: RevenueBase Database · checked Sep 30, 2026
19	MKD Electric	Partial evidence	Elgin, IL, United StatesHQ checked Sep 30, 2026	201-500	245 contacts →
	Partial evidence “MKD Electric is one of the Midwest’s largest full-service merit shop industrial electrical contractors, specializing in instrumentation and control systems integration.” Source: RevenueBase Database · checked Sep 30, 2026
20	Experitec INC	Indirect evidence	Chesterfield, MO, United StatesHQ checked Sep 30, 2026	201-500	239 contacts →
	Indirect evidence “Experitec has served the industry for over 100 years, partnering with its customers to gain competitive advantages and unlock the hidden potential in their facilities.” Source: RevenueBase Database · checked Sep 30, 2026
21	CEC Controls Company	Indirect evidence	Warren, MI, United StatesHQ checked Sep 30, 2026	201-500	229 contacts →
	Indirect evidence “CEC Controls Company, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
22	LSI	Strong evidence	Memphis, TN, United StatesHQ checked Sep 30, 2026	201-500	225 contacts →
	Strong evidence “LOGICAL SYSTEMS (LSI) is an outcome-driven systems integrator specializing in process improvement, electrical engineering, automation, systems integration, and manufacturing…” Source: RevenueBase Database · checked Sep 30, 2026
23	Applied Control Engineering, INC	Strong evidence	Newark, DE, United StatesHQ checked Sep 30, 2026	201-500	225 contacts →
	Strong 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 30, 2026
24	Kele, INC	Partial evidence	Bartlett, TN, United StatesHQ checked Sep 30, 2026	501-1,000	224 contacts →
	Partial evidence “As a leading stocking distributor of building and industrial automation solutions, Kele is built to simplify your supply chain and make life on the job easier.” Source: RevenueBase Database · checked Sep 30, 2026
25	Actemium Avanceon	Strong evidence	Exton, PA, United StatesHQ checked Sep 30, 2026	51-200	221 contacts →
	Strong evidence “Avanceon, under VINCI Energies brand Actemium, is a systems integrator company that develops, executes, and supports automation/information solutions for manufacturing and utility…” Source: RevenueBase Database · checked Sep 30, 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: automation system design services. 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 automation system design services.
Partial evidence: Its own public description names part of automation system design services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name automation system design services. 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 2,583 automation system design services based in the United States

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Automation system design services based in the United States at a glance

As of Sep 30, 2026

38.3%Verified-email coverage

18.0Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

1,177

11-50

1,005

51-200

302

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 2,583 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 automation system design services, 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 “automation system design services”. 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 automation system design services), 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 automation system design services, 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, 17,814 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 30, 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.

Automation system design services by metro

Automation system design services in Houston57

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 automation system design services, 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 automation system design services are there based in the United States?

RevenueBase identified 2,583 automation system design services 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?

Mitsubishi Electric Automation, INC, headquartered in Vernon Hills, tops this list with the largest team on record.

Which city has the most automation system design services?

Houston leads with 57 headquartered companies, followed by Rochester (19) 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 17,814 verified decision-maker contacts tracked across these 2,583 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 30, 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.