Company lists · Data refreshed September 2026

Top 25 Smart grid technology manufacturers based in the United States

Name: Smart grid technology manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 259 companies tracked

RevenueBase identified 259 smart grid technology manufacturers headquartered in the United States as of September 2026 and tracks 32,173 professional contacts across them, including 12,823 with verified work emails. Houston is the largest hub.

This list covers smart grid technology manufacturers 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 18, 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 18, 2026 86% judged on-target in blind review

259Companies

32,173Contacts tracked

12,823Verified emails

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The 25 largest smart grid technology manufacturers based in the United States

Ranked by team size

Top 25 of 259 smart grid technology manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to smart grid technology manufacturers: 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	Partial evidence	Pullman, WA, United StatesHQ checked Sep 18, 2026	5,001-10,000	6,489 contacts →
	Partial 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 18, 2026
2	Itron, INC	Indirect evidence	Liberty Lake, WA, United StatesHQ checked Sep 18, 2026	5,001-10,000	5,043 contacts →
	Indirect evidence “Itron enables utilities and cities to safely, securely and reliably deliver critical infrastructure services to communities in more than 100 countries.” Source: RevenueBase Database · checked Sep 18, 2026
3	Hubbell Incorporated	Partial evidence	Shelton, CT, United StatesHQ checked Sep 18, 2026	10001+	4,053 contacts →
	Partial 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 18, 2026
4	Powell	Indirect evidence	Houston, TX, United StatesHQ checked Sep 18, 2026	1,001-5,000	2,561 contacts →
	Indirect evidence “Powell is hiring- Powell is dedicated to improving people’s lives by providing reliable power distribution systems in every market we serve.” Source: RevenueBase Database · checked Sep 18, 2026
5	Industrial Electric Mfg. IEM	Partial evidence	Fremont, CA, United StatesHQ checked Sep 18, 2026	1,001-5,000	969 contacts →
	Partial 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 18, 2026
6	Mitsubishi Electric Power Products, INC	Indirect evidence	Warrendale, PA, United StatesHQ checked Sep 18, 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 18, 2026
7	Neptune Technology Group	Indirect evidence	Tallassee, AL, United StatesHQ checked Sep 18, 2026	501-1,000	752 contacts →
	Indirect evidence “Designing and engineering for the business of water.” Source: RevenueBase Database · checked Sep 18, 2026
8	Aclara	Partial evidence	Saint Louis, MO, United StatesHQ checked Sep 18, 2026	501-1,000	706 contacts →
	Partial evidence “Aclara is a world-class supplier of smart infrastructure solutions (SIS) and smart meters to more than 800 water, gas, and electric utilities globally.” Source: RevenueBase Database · checked Sep 18, 2026
9	Ets-Lindgren	Indirect evidence	Cedar Park, TX, United StatesHQ checked Sep 18, 2026	501-1,000	516 contacts →
	Indirect evidence “ETS-Lindgren is the leading supplier of energy management solutions for the industrial and commercial markets.” Source: RevenueBase Database · checked Sep 18, 2026
10	Qualitrol	Partial evidence	Fairport, NY, United StatesHQ checked Sep 18, 2026	501-1,000	494 contacts →
	Partial 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 18, 2026
11	Open Systems International	Indirect evidence	Bedford, MA, United StatesHQ checked Sep 18, 2026	1,001-5,000	422 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
12	Trilliant	Partial evidence	Concord, NC, United StatesHQ checked Sep 18, 2026	201-500	384 contacts →
	Partial 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 18, 2026
13	AMSC	Partial evidence	Ayer, MA, United StatesHQ checked Sep 18, 2026	201-500	334 contacts →
	Partial 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 18, 2026
14	Standex Electronics	Indirect evidence	Fairfield, OH, United StatesHQ checked Sep 18, 2026	1,001-5,000	292 contacts →
	Indirect evidence “Standex Electronics is a global leader in mission‑critical electronic components, bringing together decades of engineering expertise and customer partnerships to power innovation…” Source: RevenueBase Database · checked Sep 18, 2026
15	Milbank Energy At Work	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 18, 2026	501-1,000	266 contacts →
	Indirect evidence “Milbank provides the tools that empower life.” Source: RevenueBase Database · checked Sep 18, 2026
16	Energyhub	Partial evidence	Brooklyn, NY, United StatesHQ checked Sep 18, 2026	51-200	250 contacts →
	Partial evidence “EnergyHub is a software technology company based in New York, NY.” Source: RevenueBase Database · checked Sep 18, 2026
17	Electro Industries Gaugetech	Partial evidence	Westbury, NY, United StatesHQ checked Sep 18, 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 18, 2026
18	Systems Control	Partial evidence	Iron Mountain, MI, United StatesHQ checked Sep 18, 2026	501-1,000	240 contacts →
	Partial 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 18, 2026
19	Intermountain Electronics	Indirect evidence	Price, UT, United StatesHQ checked Sep 18, 2026	501-1,000	208 contacts →
	Indirect evidence “IE provides custom-engineered, packaged equipment to industrial markets.” Source: RevenueBase Database · checked Sep 18, 2026
20	Ubicquia, INC	Partial evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 18, 2026	51-200	205 contacts →
	Partial evidence “Ubicquia revolutionizes critical infrastructure, transforming it into intelligent systems that drive energy efficiency, bolster grid resilience, and streamline operations for…” Source: RevenueBase Database · checked Sep 18, 2026
21	Elster	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 18, 2026	5,001-10,000	203 contacts →
	Indirect evidence “Elster is a leading global provider of gas, electricity and water meters and related communications, networking and software solutions.” Source: RevenueBase Database · checked Sep 18, 2026
22	Expanse Electrical CO	Indirect evidence	Houston, TX, United StatesHQ checked Sep 18, 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 18, 2026
23	The Durham Company	Indirect evidence	Lebanon, MO, United StatesHQ checked Sep 18, 2026	501-1,000	187 contacts →
	Indirect evidence “The Durham Company specializes in the Design, Manufacturing, and Sales of products in the Electrical Utility Marketplace.” Source: RevenueBase Database · checked Sep 18, 2026
24	Tantalus Systems	Strong evidence	Raleigh, NC, United StatesHQ checked Sep 18, 2026	201-500	176 contacts →
	Strong 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 18, 2026
25	Novatech Automation	Indirect evidence	Lenexa, KS, United StatesHQ checked Sep 18, 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 18, 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: smart grid technology manufacturers. 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 smart grid technology manufacturers.
Partial evidence: Its own public description names part of smart grid technology manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name smart grid technology manufacturers. 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 259 smart grid technology manufacturers based in the United States

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Smart grid technology manufacturers based in the United States at a glance

As of Sep 18, 2026

39.9%Verified-email coverage

124.2Average contacts per company

11-50Median size (employees)

3.5%Largest-city concentration · Houston

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 259 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 smart grid technology manufacturers, 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 “smart grid technology manufacturers”. 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 smart grid technology manufacturers), 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 smart grid technology manufacturers, 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, 12,823 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 18, 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 smart grid technology manufacturers, 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 smart grid technology manufacturers are there based in the United States?

RevenueBase identified 259 smart grid technology manufacturers 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 smart grid technology manufacturers?

Houston leads with 9 headquartered companies, followed by San Francisco (5) and Miami (4).

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 12,823 verified decision-maker contacts tracked across these 259 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 18, 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.