Company lists · Data refreshed September 2026

Top 25 Substation software companies based in the United States

Name: Substation software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 340 companies tracked

RevenueBase identified 340 substation software companies headquartered in the United States as of September 2026 and tracks 30,660 professional contacts across them, including 12,310 with verified work emails. Houston is the largest hub.

This list covers substation software companies 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 21, 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 21, 2026 86% judged on-target in blind review

340Companies

30,660Contacts tracked

12,310Verified emails

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The 25 largest substation software companies based in the United States

Ranked by team size

Top 25 of 340 substation software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to substation software companies: 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	Schweitzer Engineering Laboratories SEL	Indirect evidence	Pullman, WA, United StatesHQ checked Sep 21, 2026	5,001-10,000	6,489 contacts →
	Indirect evidence “SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.” Source: RevenueBase Database · checked Sep 21, 2026
2	Hubbell Incorporated	Indirect evidence	Shelton, CT, United StatesHQ checked Sep 21, 2026	10001+	4,053 contacts →
	Indirect evidence “Hubbell Incorporated is a leading manufacturer of utility and electrical solutions that help build more reliable, resilient, and renewable energy infrastructure.” Source: RevenueBase Database · checked Sep 21, 2026
3	S&c Electric Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,465 contacts →
	Indirect evidence “S&C is empowering people to transform the grid.” Source: RevenueBase Database · checked Sep 21, 2026
4	GE Digital	Partial evidence	San Ramon, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,763 contacts →
	Partial evidence “At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.” Source: RevenueBase Database · checked Sep 21, 2026
5	Industrial Electric Mfg. IEM	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	969 contacts →
	Indirect evidence “Industrial Electric Mfg.(IEM) is the largest independent full-line manufacturer of electrical distribution equipment and integrated power systems in the U.S.” Source: RevenueBase Database · checked Sep 21, 2026
6	Mitsubishi Electric Power Products, INC	Indirect evidence	Warrendale, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	967 contacts →
	Indirect evidence “Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Source: RevenueBase Database · checked Sep 21, 2026
7	Electrical Consultants, INC	Partial evidence	Billings, MT, United StatesHQ checked Sep 21, 2026	1,001-5,000	890 contacts →
	Partial evidence “Electrical Consultants, Inc.(ECI) is an employee-owned, national provider of high voltage transmission, substation, and distribution solutions.” Source: RevenueBase Database · checked Sep 21, 2026
8	Vertexone	Partial evidence	Dallas, TX, United StatesHQ checked Sep 21, 2026	201-500	693 contacts →
	Partial evidence “VertexOne is the leading provider of cloud-based SaaS software powering the next generation of customer experience for utilities, energy retailers, and energy transition providers.” Source: RevenueBase Database · checked Sep 21, 2026
9	Resa Power	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	511 contacts →
	Indirect evidence “RESA Power is your ONE-STOP for all of your power needs.” Source: RevenueBase Database · checked Sep 21, 2026
10	Qualitrol	Indirect evidence	Fairport, NY, United StatesHQ checked Sep 21, 2026	501-1,000	494 contacts →
	Indirect evidence “Qualitrol is a global leader in electrical grid monitoring solutions for businesses that manage, operate, or support the power grid.” Source: RevenueBase Database · checked Sep 21, 2026
11	Open Systems International	Indirect evidence	Bedford, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	422 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
12	K&a Power	Indirect evidence	Syracuse, NY, United StatesHQ checked Sep 21, 2026	201-500	410 contacts →
	Indirect evidence “K&A Power is a global energy infrastructure company focused on developing, engineering, delivering, and operating the critical systems that power modern economies.” Source: RevenueBase Database · checked Sep 21, 2026
13	PCI Energy Solutions	Indirect evidence	Norman, OK, United StatesHQ checked Sep 21, 2026	201-500	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 21, 2026
14	AMSC	Indirect evidence	Ayer, MA, United StatesHQ checked Sep 21, 2026	201-500	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 21, 2026
15	Asplundh Engineering Services	Indirect evidence	Willow Grove, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	284 contacts →
	Indirect evidence “Asplundh Engineering Services leverages more than 100 years of experience to provide a superior, single-point solution for engineering, design and testing services to…” Source: RevenueBase Database · checked Sep 21, 2026
16	Crown Technical Systems	Indirect evidence	Fontana, CA, United StatesHQ checked Sep 21, 2026	201-500	241 contacts →
	Indirect evidence “Crown Technical Systems, a Flex company, is headquartered in Fontana, California, with additional production and engineering facilities in Dallas, Texas, and Ontario, Canada.” Source: RevenueBase Database · checked Sep 21, 2026
17	Systems Control	Indirect evidence	Iron Mountain, MI, United StatesHQ checked Sep 21, 2026	501-1,000	240 contacts →
	Indirect evidence “Systems Control, a Hubbell brand, designs and manufactures turnkey control systems and control relays that are involved in the protection and control of transmission and…” Source: RevenueBase Database · checked Sep 21, 2026
18	ANB Systems, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	223 contacts →
	Partial evidence “ANB Systems is a leading software provider for the energy industry.” Source: RevenueBase Database · checked Sep 21, 2026
19	Aubrey Silvey Enterprises, INC	Indirect evidence	Carrollton, GA, United StatesHQ checked Sep 21, 2026	201-500	192 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
20	Expanse Electrical CO	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	501-1,000	188 contacts →
	Indirect evidence “Expanse Electrical Company is a premier provider of integrated electrical infrastructure, instrumentation and automation system solutions.” Source: RevenueBase Database · checked Sep 21, 2026
21	Tantalus Systems	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 21, 2026	201-500	176 contacts →
	Indirect evidence “About Tantalus Systems Holding Inc.(TSX: GRID; OTCQX: TGMPF) Tantalus is a technology company dedicated to helping utilities modernize their distribution grids by harnessing the…” Source: RevenueBase Database · checked Sep 21, 2026
22	Novatech Automation	Indirect evidence	Lenexa, KS, United StatesHQ checked Sep 21, 2026	51-200	153 contacts →
	Indirect evidence “NovaTech Automation produces the easiest to use and best supported automation products and solutions for electric utilities.” Source: RevenueBase Database · checked Sep 21, 2026
23	Cleaveland Price INC	Indirect evidence	Trafford, PA, United StatesHQ checked Sep 21, 2026	201-500	145 contacts →
	Indirect evidence “Cleaveland/Price is a engineering/manufacturing firm serving the needs of the electric power industry.” Source: RevenueBase Database · checked Sep 21, 2026
24	Gridware	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	139 contacts →
	Indirect evidence “Gridware is a technology company focused on protecting and enhancing the electrical grid.” Source: RevenueBase Database · checked Sep 21, 2026
25	Hico America	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	137 contacts →
	Indirect evidence “HICO America is the North American headquarters for the HICO family of companies, delivering the infrastructure behind today's most ambitious energy projects.” Source: RevenueBase Database · checked Sep 21, 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: substation software companies. 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 substation software companies.
Partial evidence: Its own public description names part of substation software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name substation software companies. 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 340 substation software companies based in the United States

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Substation software companies based in the United States at a glance

As of Sep 21, 2026

40.2%Verified-email coverage

90.2Average contacts per company

11-50Median size (employees)

4.1%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

107

11-50

124

51-200

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 340 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 substation software companies, 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 “substation software companies”. 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 substation software companies), 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 substation software companies, 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, 12,310 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 21, 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.

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 substation software companies, 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 substation software companies are there based in the United States?

RevenueBase identified 340 substation software companies 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?

Schweitzer Engineering Laboratories SEL, headquartered in Pullman, tops this list with the largest team on record.

Which city has the most substation software companies?

Houston leads with 14 headquartered companies, followed by Chicago (5) and Miami (5).

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 12,310 verified decision-maker contacts tracked across these 340 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 21, 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.