Company lists · Data refreshed September 2026

Top 25 Power grid automation companies based in the United States

Name: Power grid automation 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 17, 2026 180 companies tracked

RevenueBase identified 180 power grid automation companies headquartered in the United States as of September 2026 and tracks 6,713 professional contacts across them, including 2,349 with verified work emails. Houston is the largest hub.

This list covers power grid automation 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 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

180Companies

6,713Contacts tracked

2,349Verified emails

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The 25 largest power grid automation companies based in the United States

Ranked by team size

Top 25 of 180 power grid automation companies 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 power grid automation 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	Qualitrol	Strong evidence	Fairport, NY, United StatesHQ checked Sep 17, 2026	501-1,000	494 contacts →
	Strong 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 17, 2026
2	AMSC	Indirect evidence	Ayer, MA, United StatesHQ checked Sep 17, 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 17, 2026
3	Ermco, INC	Indirect evidence	Greenwood, IN, United StatesHQ checked Sep 17, 2026	201-500	304 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 17, 2026
4	Energyhub	Indirect evidence	Brooklyn, NY, United StatesHQ checked Sep 17, 2026	51-200	250 contacts →
	Indirect evidence “EnergyHub is a software technology company based in New York, NY.” Source: RevenueBase Database · checked Sep 17, 2026
5	Base Power Company	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	201-500	248 contacts →
	Partial evidence “Base is building the future of American power.” Source: RevenueBase Database · checked Sep 17, 2026
6	Systems Control	Indirect evidence	Iron Mountain, MI, United StatesHQ checked Sep 17, 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 17, 2026
7	Expanse Electrical CO	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	188 contacts →
	Partial evidence “Expanse Electrical Company is a premier provider of integrated electrical infrastructure, instrumentation and automation system solutions.” Source: RevenueBase Database · checked Sep 17, 2026
8	Tantalus Systems	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 17, 2026	201-500	176 contacts →
	Partial 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 17, 2026
9	Novatech Automation	Partial evidence	Lenexa, KS, United StatesHQ checked Sep 17, 2026	51-200	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 17, 2026
10	Trimark Associates, INC	Indirect evidence	Folsom, CA, United StatesHQ checked Sep 17, 2026	51-200	147 contacts →
	Indirect evidence “Follow us to discover company developments, our energy clients' successes and employment opportunities.” Source: RevenueBase Database · checked Sep 17, 2026
11	Cleaveland Price INC	Partial evidence	Trafford, PA, United StatesHQ checked Sep 17, 2026	201-500	145 contacts →
	Partial evidence “Cleaveland/Price is a engineering/manufacturing firm serving the needs of the electric power industry.” Source: RevenueBase Database · checked Sep 17, 2026
12	Gridware	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	51-200	139 contacts →
	Partial evidence “Gridware is a technology company focused on protecting and enhancing the electrical grid.” Source: RevenueBase Database · checked Sep 17, 2026
13	Emerson Ovation Automation Platform	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
14	Smart Wires INC	Partial evidence	Durham, NC, United StatesHQ checked Sep 17, 2026	51-200	105 contacts →
	Partial evidence “Smart Wires is the world’s leading grid enhancing technology and services provider.” Source: RevenueBase Database · checked Sep 17, 2026
15	Basler	Indirect evidence	Highland, IL, United StatesHQ checked Sep 17, 2026	501-1,000	104 contacts →
	Indirect evidence “In 2025, Basler Electric Company was acquired by Littelfuse, Inc, a global, diversified industrial technology manufacturing company dedicated to creating a sustainable, connected…” Source: RevenueBase Database · checked Sep 17, 2026
16	Spoc Automation	Indirect evidence	Trussville, AL, United StatesHQ checked Sep 17, 2026	51-200	75 contacts →
	Indirect evidence “Who is SPOC?” Source: RevenueBase Database · checked Sep 17, 2026
17	Automation-X	Partial evidence	Fort Collins, CO, United StatesHQ checked Sep 17, 2026	51-200	74 contacts →
	Partial evidence “Automation-X, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
18	Powergem	Strong evidence	Clifton Park, NY, United StatesHQ checked Sep 17, 2026	51-200	71 contacts →
	Strong evidence “PowerGEM provides advanced power grid and energy market simulation software and services.” Source: RevenueBase Database · checked Sep 17, 2026
19	Networked Energy Services NES Corporation	Partial evidence	San Jose, CA, United StatesHQ checked Sep 17, 2026	51-200	68 contacts →
	Partial evidence “Networked Energy Services Corporation is a global smart energy leader in the worldwide transformation of the electricity grid into an energy control network, enabling utilities to…” Source: RevenueBase Database · checked Sep 17, 2026
20	Connected Energy	Strong evidence	Canonsburg, PA, United StatesHQ checked Sep 17, 2026	51-200	65 contacts →
	Strong evidence “BPL Global® (BPLG) provides electric utilities with a suite of smart grid solutions for advanced distribution automation from substations through customer premises.” Source: RevenueBase Database · checked Sep 17, 2026
21	Gridunity	Strong evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	51-200	63 contacts →
	Strong evidence “GridUnity® accelerates grid interconnection by streamlining and automating complex, manual processes that delay energy deployment.” Source: RevenueBase Database · checked Sep 17, 2026
22	Hartigen	Strong evidence	Katy, TX, United StatesHQ checked Sep 17, 2026	51-200	56 contacts →
	Strong evidence “Hartigen is the leading technology partner for power market participants across North America, delivering automation, transparency, and high-performance solutions through a…” Source: RevenueBase Database · checked Sep 17, 2026
23	Daedalus Industrial	Indirect evidence	Easley, SC, United StatesHQ checked Sep 17, 2026	51-200	45 contacts →
	Indirect evidence “At Daedalus Industrial, we’re driven by one guiding principle: efficiency without compromise.” Source: RevenueBase Database · checked Sep 17, 2026
24	DVI Grid Solutions	Partial evidence	Richmond, VA, United StatesHQ checked Sep 17, 2026	11-50	42 contacts →
	Partial evidence “DVI, a subsidiary of Dominion Energy, is a leading provider of grid analytics and control technology, providing solutions for energy efficiency, demand response, volt/VAR control…” Source: RevenueBase Database · checked Sep 17, 2026
25	Syso Technologies	Strong evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	11-50	40 contacts →
	Strong evidence “SYSO Technologies envisions a power grid free from the use of fossil fuels.” 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: power grid automation 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 power grid automation companies.
Partial evidence: Its own public description names part of power grid automation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name power grid automation 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 180 power grid automation companies based in the United States

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Power grid automation companies based in the United States at a glance

As of Sep 17, 2026

35.0%Verified-email coverage

37.3Average contacts per company

11-50Median size (employees)

6.7%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 180 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 grid automation 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 “power grid automation 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 power grid automation 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 power grid automation 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, 2,349 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.

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 grid automation 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 power grid automation companies are there based in the United States?

RevenueBase identified 180 power grid automation 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?

Qualitrol, headquartered in Fairport, tops this list with the largest team on record.

Which city has the most power grid automation companies?

Houston leads with 12 headquartered companies, followed by San Francisco (6) and Boston (3).

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 2,349 verified decision-maker contacts tracked across these 180 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.