Company lists · Data refreshed September 2026

Top 25 Plant floor systems integrators based in the United States

RevenueBase identified 2,181 plant floor systems integrators headquartered in the United States as of September 2026 and tracks 116,565 professional contacts across them, including 48,679 with verified work emails. Houston is the largest hub.

This list covers plant floor 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 29, 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 29, 2026 86% judged on-target in blind review
2,181Companies
116,565Contacts tracked
48,679Verified emails
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The 25 largest plant floor systems integrators based in the United States

Ranked by team size
Top 25 of 2,181 plant floor systems integrators based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to plant floor 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
1Indirect evidenceSt. Louis, MO, United StatesHQ checked Sep 29, 202610001+47,277 contacts →

Indirect evidence

“Emerson (NYSE: EMR) is a global automation leader delivering solutions for the most demanding technology challenges.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceMilwaukee, WI, United StatesHQ checked Sep 29, 202610001+20,582 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceVernon Hills, IL, United StatesHQ checked Sep 29, 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 29, 2026
4Indirect evidenceHoffman Estates, IL, United StatesHQ checked Sep 29, 20261,001-5,0001,847 contacts →

Indirect 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 29, 2026
5Strong evidenceHolland, MI, United StatesHQ checked Sep 29, 20261,001-5,0001,386 contacts →

Strong evidence

“JR Automation is a leading global integrator of custom automated systems for manufacturing and distribution environments around the world.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 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 29, 2026
7Strong evidenceAurora, OH, United StatesHQ checked Sep 29, 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 29, 2026
8Indirect evidenceAuburn Hills, MI, United StatesHQ checked Sep 29, 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 29, 2026
9Indirect evidenceSioux Center, IA, United StatesHQ checked Sep 29, 20261,001-5,000938 contacts →

Indirect evidence

“As a Partner Interstates is your trusted partner for electrical, automation, and operational technology needs.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 2026501-1,000879 contacts →

Indirect evidence

“INTECH Automation & Intelligence is a globally renowned industrial automation & digitalization technology company.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceBaton Rouge, LA, United StatesHQ checked Sep 29, 2026501-1,000848 contacts →

Indirect 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 29, 2026
12Partial evidenceWest Chester, OH, United StatesHQ checked Sep 29, 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 29, 2026
13Partial evidenceColumbia, MD, United StatesHQ checked Sep 29, 20261,001-5,000600 contacts →

Partial evidence

“Tate’s access floor and underfloor service distribution solution is one of the best strategies for achieving high performance, sustainable commercial and data center environments.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceAurora, OH, United StatesHQ checked Sep 29, 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 29, 2026
15Indirect evidenceCovington, LA, United StatesHQ checked Sep 29, 202651-200467 contacts →

Indirect 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 29, 2026
16Partial evidenceEast Windsor, NJ, United StatesHQ checked Sep 29, 2026201-500455 contacts →

Partial 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 29, 2026
17Indirect evidenceMukilteo, WA, United StatesHQ checked Sep 29, 2026201-500443 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceLong Beach, CA, United StatesHQ checked Sep 29, 2026201-500395 contacts →

Indirect 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 29, 2026
19Indirect evidenceMilwaukee, WI, United StatesHQ checked Sep 29, 20261,001-5,000393 contacts →

Indirect evidence

“As Rockwell Automation’s digital service arm, we bring digital solutions to product problems.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceBruce Township, MI, United StatesHQ checked Sep 29, 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 29, 2026
21Indirect evidenceMaumee, OH, United StatesHQ checked Sep 29, 2026201-500382 contacts →

Indirect evidence

“Matrix Technologies Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceShoreview, MN, United StatesHQ checked Sep 29, 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 29, 2026
23Partial evidenceWarren, MI, United StatesHQ checked Sep 29, 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 29, 2026
24Indirect evidenceGreenwood, IN, United StatesHQ checked Sep 29, 2026201-500304 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 29, 2026
25Partial evidenceHolland, MI, United StatesHQ checked Sep 29, 2026201-500277 contacts →

Partial 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 29, 2026

Showing 25 of 2,181 plant floor systems integrators based in the United States

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Plant floor systems integrators based in the United States at a glance

As of Sep 29, 2026
41.8%Verified-email coverage
53.4Average contacts per company
11-50Median size (employees)
2.1%Largest-city concentration · Houston
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,005
11-50
807
51-200
270
201-500
60
501-1,000
17
1,001-5,000
13
5,001-10,000
1
10001+
4

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 2,181 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 plant floor 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 “plant floor 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 plant floor 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 plant floor 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, 48,679 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 29, 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.

Plant floor 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 plant floor 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 plant floor systems integrators are there based in the United States?

RevenueBase identified 2,181 plant floor 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?

Emerson, headquartered in St. Louis, tops this list with the largest team on record.

Which city has the most plant floor systems integrators?

Houston leads with 45 headquartered companies, followed by Grand Rapids (22) and Rochester (20).

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 48,679 verified decision-maker contacts tracked across these 2,181 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 29, 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.