Company lists · Data verified August 2026

Top 25 Automation systems integrators based in the United States

Name: Automation systems integrators based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 3,198 companies tracked

There are 3,198 automation systems integrators headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 89,966 professional contacts across them, including 36,503 with verified work emails and 33,497 with mobile numbers. Houston is the largest hub.

This list covers automation 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. Data current as of August 28, 2026.

3,198Companies

89,966Contacts tracked

36,503Verified emails

33,497Mobile numbers

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The 25 largest automation systems integrators based in the United States

Ranked by team size

Top 25 of 3,198 automation systems integrators based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Rockwell Automation	Chelmsford, MA	10001+	20,541	7,024
2	Convergint	Hoffman Estates, IL	10001+	5,729	3,252
3	Mitsubishi Electric Automation, INC	Vernon Hills, IL	n/a	2,001	229
4	Fanuc America Corporation	Hoffman Estates, IL	501-1,000	1,906	1,046
5	JR Automation	Greenville, SC	1,001-5,000	1,372	852
6	Convergix Automation Solutions	Auburn Hills, MI	501-1,000	949	345
7	Prime Controls	Denver, CO	1,001-5,000	870	508
8	Awc, INC	Corpus Christi, TX	501-1,000	849	406
9	Sarla Technologies	Pittsburgh, PA	501-1,000	628	271
10	Eclipse Automation	Rock Hill, SC	501-1,000	628	199
11	E Tech Group	Columbia, SC	501-1,000	612	472
12	Thermo Systems	Fort Washington, PA	201-500	451	303
13	R&e Automated	Port Huron, MI	501-1,000	380	217
14	PAR Systems	Shoreview, MN	501-1,000	378	12
15	Paslin	Warren, MI	501-1,000	367	159
16	Ermco, INC	Greenwood, IN	201-500	304	147
17	BBS Automation	Bartlett, IL	1,001-5,000	300	136
18	Designed Conveyor Systems DCS	Franklin, TN	201-500	290	210
19	Koops Automation Systems	Holland, MI	201-500	279	20
20	Cbe, INC	Montgomery, AL	1,001-5,000	257	45
21	Motion Automation Intelligence	Bloomfield, CT	501-1,000	247	152
22	MKD Electric	Joliet, IL	201-500	245	118
23	Experitec INC	Chesterfield, MO	201-500	240	164
24	LSI	Memphis, TN	201-500	231	171
25	Applied Control Engineering, INC	Houston, TX	201-500	225	147

Showing 25 of 3,198 automation systems integrators based in the United States

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Automation systems integrators based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

HoustonLargest hub · 60 HQs

33,497Contacts with mobile numbers

200Emails re-verified in last 30 days

Companies by employee count

1-10

1,360

11-50

1,266

51-200

425

201-500

501-1,000

1,001-5,000

10001+

Automation systems integrators by metro

Metro	Companies
Automation systems integrators in Houston	60
Automation systems integrators in Chicago	27
Automation systems integrators in New York	27
Automation systems integrators in Atlanta	23
Automation systems integrators in Los Angeles	23
Automation systems integrators in Austin	22
Automation systems integrators in Rochester	21

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “automation systems integrators”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 200 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many automation systems integrators are there based in the United States?

There are 3,198 automation systems integrators headquartered in the United States as of August 2026 (RevenueBase).

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 automation systems integrators?

Houston leads with 60 headquartered companies, followed by Chicago (27) and New York (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 36,503 verified decision-maker contacts tracked across these 3,198 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.