Company lists · Data refreshed September 2026

Top 25 Transmission management software companies based in the United States

Name: Transmission management 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 29, 2026 445 companies tracked

RevenueBase identified 445 transmission management software companies headquartered in the United States as of September 2026 and tracks 37,278 professional contacts across them, including 13,764 with verified work emails. Houston is the largest hub.

This list covers transmission management 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 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

445Companies

37,278Contacts tracked

13,764Verified emails

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The 25 largest transmission management software companies based in the United States

Ranked by team size

Top 25 of 445 transmission management software companies 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 transmission management 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	Toshiba	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	n/a	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, 2026
2	Hubbell Incorporated	Indirect evidence	Shelton, CT, United StatesHQ checked Sep 29, 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 29, 2026
3	S&c Electric Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,465 contacts →
	Indirect evidence “S&C is empowering people to transform the grid.” Source: RevenueBase Database · checked Sep 29, 2026
4	GE Digital	Partial evidence	San Ramon, CA, United StatesHQ checked Sep 29, 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 29, 2026
5	Quorum Software	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	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, 2026
6	Electrical Consultants, INC	Partial evidence	Billings, MT, United StatesHQ checked Sep 29, 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 29, 2026
7	Vertexone	Partial evidence	Dallas, TX, United StatesHQ checked Sep 29, 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 29, 2026
8	Electric Power Engineers	Indirect evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	501-1,000	630 contacts →
	Indirect evidence “Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.” Source: RevenueBase Database · checked Sep 29, 2026
9	Doble Engineering	Indirect evidence	Marlborough, MA, United StatesHQ checked Sep 29, 2026	501-1,000	619 contacts →
	Indirect evidence “Doble is the world’s most trusted brand in electrical diagnostics.” Source: RevenueBase Database · checked Sep 29, 2026
10	UDC	Partial evidence	Englewood, CO, United StatesHQ checked Sep 29, 2026	501-1,000	537 contacts →
	Partial evidence “UDC has developed deep expertise and offers services that enable digital utilities and energy delivery resource management through fully integrated enterprise systems.” Source: RevenueBase Database · checked Sep 29, 2026
11	Etap Software	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	534 contacts →
	Indirect evidence “Optimize, simulate, and control electrical systems with confidence across utilities, infrastructure, manufacturing, and building sectors.” Source: RevenueBase Database · checked Sep 29, 2026
12	Resa Power	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 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 29, 2026
13	Qualitrol	Indirect evidence	Fairport, NY, United StatesHQ checked Sep 29, 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 29, 2026
14	Open Systems International	Indirect evidence	Bedford, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	422 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
15	Stem, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	501-1,000	417 contacts →
	Indirect evidence “At Stem, we’re reimagining technology to drive the energy transition.” Source: RevenueBase Database · checked Sep 29, 2026
16	K&a Power	Indirect evidence	Syracuse, NY, United StatesHQ checked Sep 29, 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 29, 2026
17	Trilliant	Indirect evidence	Concord, NC, United StatesHQ checked Sep 29, 2026	201-500	384 contacts →
	Indirect evidence “Trilliant® empowers utilities and partners to accelerate the energy transition through a proven, modular, multi-technology communications platform that delivers secure, scalable…” Source: RevenueBase Database · checked Sep 29, 2026
18	Abjayon INC	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 29, 2026	201-500	371 contacts →
	Indirect evidence “Abjayon is a global innovation company focusing on helping Utilities with digital transformation and providing high-quality engineering services to Enterprise customers.” Source: RevenueBase Database · checked Sep 29, 2026
19	PCI Energy Solutions	Indirect evidence	Norman, OK, United StatesHQ checked Sep 29, 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 29, 2026
20	AMSC	Indirect evidence	Ayer, MA, United StatesHQ checked Sep 29, 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 29, 2026
21	Bidgely	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 29, 2026	51-200	306 contacts →
	Indirect evidence “Bidgely is the indispensable innovation partner for UtilityAI.” Source: RevenueBase Database · checked Sep 29, 2026
22	Asplundh Engineering Services	Indirect evidence	Willow Grove, PA, United StatesHQ checked Sep 29, 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 29, 2026
23	Energyhub	Partial evidence	Brooklyn, NY, United StatesHQ checked Sep 29, 2026	51-200	250 contacts →
	Partial evidence “EnergyHub is a software technology company based in New York, NY.” Source: RevenueBase Database · checked Sep 29, 2026
24	Mosaic	Indirect evidence	Renton, WA, United StatesHQ checked Sep 29, 2026	201-500	248 contacts →
	Indirect evidence “Mosaic is a consulting firm that delivers custom solutions across the energy, utility, grid operations, and grid modernization space.” Source: RevenueBase Database · checked Sep 29, 2026
25	Electro Industries Gaugetech	Partial evidence	Westbury, NY, United StatesHQ checked Sep 29, 2026	201-500	241 contacts →
	Partial evidence “For over 45 years, Electro Industries/GaugeTech has been a leader in innovation and technological advancements in the areas of energy management and power monitoring.” Source: RevenueBase Database · checked Sep 29, 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: transmission management 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 transmission management software companies.
Partial evidence: Its own public description names part of transmission management software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transmission management 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 445 transmission management software companies based in the United States

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Transmission management software companies based in the United States at a glance

As of Sep 29, 2026

36.9%Verified-email coverage

83.8Average contacts per company

11-50Median size (employees)

4.9%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

142

11-50

153

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 445 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 transmission management 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 “transmission management 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 transmission management 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 transmission management 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, 13,764 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.

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 transmission management 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 transmission management software companies are there based in the United States?

RevenueBase identified 445 transmission management 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?

Toshiba, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most transmission management software companies?

Houston leads with 22 headquartered companies, followed by San Francisco (10) and Austin (7).

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 13,764 verified decision-maker contacts tracked across these 445 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.