Company lists · Data refreshed September 2026
Top 25 Power plant automation software developers based in the United States
RevenueBase identified 428 power plant automation software developers headquartered in the United States as of September 2026 and tracks 41,908 professional contacts across them, including 13,226 with verified work emails. Houston is the largest hub.
This list covers power plant automation software developers 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.
The 25 largest power plant automation software developers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 20,582 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 5,984 contacts → | ||||
Indirect evidence “For 150 years, Toshiba has been engineering solutions that drive progress, empower industries, and create a more resilient future.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,563 contacts → | ||||
Partial evidence “Quorum Software is a leading provider of energy software worldwide powering growth and profitability for energy businesses by connecting people, workflows, and systems with…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 923 contacts → | ||||
Partial evidence “TMEIC Corporation, headquartered in Houston, Texas, designs, develops and engineers advanced automation systems, large AC and DC motors, photovoltaic inverters and variable…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 404 contacts → | ||||
Strong evidence “GSE Solutions supports nuclear power and clean-energy fleets worldwide through integrated engineering services and software that strengthen operational performance.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 362 contacts → | ||||
Strong evidence “Inductive Automation creates industrial software that empowers organizations to swiftly turn great ideas into reality by removing all technological and economic obstacles.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 346 contacts → | ||||
Indirect evidence “PCIEnergySolutions is a tight-knit team of 300 diligent product experts, engineers, business analysts, and more.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 334 contacts → | ||||
Indirect evidence “AMSC (NASDAQ: AMSC) generates the ideas, technologies and solutions that meet the world’s demand for smarter, cleaner … better energy.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 268 contacts → | ||||
Partial evidence “Seeq Corporation develops software and services that accelerate industrial process analytics on industrial process data.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 217 contacts → | ||||
Strong evidence “Vinson Process Controls is the leading provider for industrial automation solutions for Oil and Gas, Chemical and Petro-Chemical, Pulp and Paper, Power Generation, Refining and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 180 contacts → | ||||
Partial evidence “Applied Control comes alongside you as a partner who understands your plant, your processes, and the pressure you face to deliver performance without interruption.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 161 contacts → | ||||
Partial evidence “AA Electric is your single source for machine control and automation specialty electrical products.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 153 contacts → | ||||
Partial evidence “NovaTech Automation produces the easiest to use and best supported automation products and solutions for electric utilities.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 147 contacts → | ||||
Indirect evidence “Follow us to discover company developments, our energy clients' successes and employment opportunities.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 143 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 107 contacts → | ||||
Partial evidence “Explore the ways the Ovation™ Automation Platform and Ovation Green renewable solutions remove data silos to provide a holistic operational view that helps utilities meet the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 104 contacts → | ||||
Partial evidence “Preferred Utilities Manufacturing Corporation is an engineering-based manufacturer of products for commercial, institutional, industrial and nuclear power facilities.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 104 contacts → | ||||
Indirect evidence “IS International Services, LLC (IS) is a controls system integrator, providing solutions and services globally.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 98 contacts → | ||||
Partial evidence “Founded in 1960, Suburban continues to exceed our clients’ expectations by providing industry-leading automation, electrical, fabrication and technology solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 96 contacts → | ||||
Partial evidence “Cutsforth specializes in developing innovative new technologies and services to enhance plant asset management.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 93 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 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: power plant automation software developers. 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 power plant automation software developers.
- Partial evidence
- Its own public description names part of power plant automation software developers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name power plant automation software developers. 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 428 power plant automation software developers based in the United States
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Power plant automation software developers based in the United States at a glance
As of Sep 29, 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 428 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 power plant automation software developers, 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 “power plant automation software developers”. 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 power plant automation software developers), 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 power plant automation software developers, 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, 13,226 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.
Power plant automation software developers 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 power plant automation software developers, 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 power plant automation software developers are there based in the United States?
RevenueBase identified 428 power plant automation software developers 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?
Rockwell Automation, headquartered in Milwaukee, tops this list with the largest team on record.
Which city has the most power plant automation software developers?
Houston leads with 31 headquartered companies, followed by Austin (8) and Pittsburgh (6).
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 13,226 verified decision-maker contacts tracked across these 428 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.
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