Company lists · Data refreshed September 2026

Top 25 Refinery automation system integrators based in the United States

Name: Refinery automation system integrators based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,907 companies tracked

RevenueBase identified 1,907 refinery automation system integrators headquartered in the United States as of September 2026 and tracks 53,978 professional contacts across them, including 23,179 with verified work emails. Houston is the largest hub.

This list covers refinery automation system 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 17, 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 17, 2026 86% judged on-target in blind review

1,907Companies

53,978Contacts tracked

23,179Verified emails

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The 25 largest refinery automation system integrators based in the United States

Ranked by team size

Top 25 of 1,907 refinery automation system integrators based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to refinery automation system 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Entrust Solutions Group	Partial evidence	Lisle, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,966 contacts →
	Partial evidence “ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…” Source: RevenueBase Database · checked Sep 17, 2026
2	Mitsubishi Electric Automation, INC	Partial evidence	Vernon Hills, IL, United StatesHQ checked Sep 17, 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 17, 2026
3	Omron Automation	Partial evidence	Hoffman Estates, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	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 17, 2026
4	JR Automation	Strong evidence	Holland, MI, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,386 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 17, 2026
5	Englobal	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 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 17, 2026
6	Rovisys	Strong evidence	Aurora, OH, United StatesHQ checked Sep 17, 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 17, 2026
7	Convergix Automation Solutions	Partial evidence	Auburn Hills, MI, United StatesHQ checked Sep 17, 2026	501-1,000	942 contacts →
	Partial evidence “Convergix Automation Solutions designs, engineers and integrates hardware and software to automate its customers' operations.” Source: RevenueBase Database · checked Sep 17, 2026
8	Interstates	Partial evidence	Sioux Center, IA, United StatesHQ checked Sep 17, 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 17, 2026
9	Intech Automation & Intelligence	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	879 contacts →
	Partial evidence “INTECH Automation & Intelligence is a globally renowned industrial automation & digitalization technology company.” Source: RevenueBase Database · checked Sep 17, 2026
10	Prime Controls	Partial evidence	Lewisville, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	857 contacts →
	Partial 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 17, 2026
11	Awc, INC	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 17, 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 17, 2026
12	Puffer-Sweiven	Indirect evidence	Stafford, TX, United StatesHQ checked Sep 17, 2026	501-1,000	688 contacts →
	Indirect evidence “Puffer‑Sweiven has supported process operations for over 80 years-helping facilities run safer, smarter, and more reliably.” Source: RevenueBase Database · checked Sep 17, 2026
13	Setpoint Integrated Solutions, INC	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 17, 2026	501-1,000	626 contacts →
	Indirect 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 17, 2026
14	Wunderlich-Malec Engineering, INC	Partial evidence	Eden Prairie, MN, United StatesHQ checked Sep 17, 2026	501-1,000	623 contacts →
	Partial evidence “Wunderlich-Malec Engineering is a nationally recognized, 100% employee-owned leader in advanced engineering and control system solutions.” Source: RevenueBase Database · checked Sep 17, 2026
15	E Tech Group	Partial evidence	West Chester, OH, United StatesHQ checked Sep 17, 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 17, 2026
16	W-Industries	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	552 contacts →
	Partial 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 17, 2026
17	BECHT	Indirect evidence	Liberty Corner, NJ, United StatesHQ checked Sep 17, 2026	501-1,000	545 contacts →
	Indirect evidence “Becht partners with industrial operators across the energy and process sectors to solve complex challenges that impact safety, reliability, and profitability.” Source: RevenueBase Database · checked Sep 17, 2026
18	Ingenero	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	532 contacts →
	Indirect evidence “Ingenero's goal is to be the best process engineering firm by delivering the highest quality service and software solutions at the lowest cost.” Source: RevenueBase Database · checked Sep 17, 2026
19	Contech Control Services	Partial evidence	La Porte, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	512 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 17, 2026
20	Ardent Services, LLC	Partial evidence	Covington, LA, United StatesHQ checked Sep 17, 2026	51-200	467 contacts →
	Partial 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 17, 2026
21	Thermo Systems	Strong evidence	East Windsor, NJ, United StatesHQ checked Sep 17, 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 17, 2026
22	Fori Automation, LLC A Lincoln Electric Company	Strong evidence	Shelby Twp., MI, United StatesHQ checked Sep 17, 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 17, 2026
23	Electroimpact	Partial evidence	Mukilteo, WA, United StatesHQ checked Sep 17, 2026	201-500	443 contacts →
	Partial evidence “Electroimpact is a highly experienced provider of factory automation and tooling solutions.” Source: RevenueBase Database · checked Sep 17, 2026
24	The Stronghold Companies	Partial evidence	La Porte, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	419 contacts →
	Partial evidence “As part of the Quanta Services Family of Companies (NYSE: PWR)- Stronghold provides the safest, leanest, most efficient, quality solutions for the refinery, petrochemical and…” Source: RevenueBase Database · checked Sep 17, 2026
25	Mangan INC	Partial evidence	Long Beach, CA, United StatesHQ checked Sep 17, 2026	201-500	395 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 17, 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: refinery automation system integrators. 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 refinery automation system integrators.
Partial evidence: Its own public description names part of refinery automation system integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery automation system integrators. 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 1,907 refinery automation system integrators based in the United States

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Refinery automation system integrators based in the United States at a glance

As of Sep 17, 2026

42.9%Verified-email coverage

28.3Average contacts per company

11-50Median size (employees)

5.5%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

810

11-50

751

51-200

248

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 1,907 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 refinery automation system 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 “refinery automation system 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 refinery automation system 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 refinery automation system 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, 23,179 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 17, 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.

Refinery automation system integrators by metro

Refinery automation system integrators in Houston104

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 refinery automation system 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 refinery automation system integrators are there based in the United States?

RevenueBase identified 1,907 refinery automation system 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?

Entrust Solutions Group, headquartered in Lisle, tops this list with the largest team on record.

Which city has the most refinery automation system integrators?

Houston leads with 104 headquartered companies, followed by San Antonio (12) and Odessa (11).

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 23,179 verified decision-maker contacts tracked across these 1,907 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 17, 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.