Company lists · Data refreshed September 2026

Top 25 Energy management system providers based in the United States

RevenueBase identified 1,381 energy management system providers headquartered in the United States as of September 2026 and tracks 38,112 professional contacts across them, including 17,193 with verified work emails. Houston is the largest hub.

This list covers energy management system providers 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 16, 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 16, 2026 86% judged on-target in blind review
1,381Companies
38,112Contacts tracked
17,193Verified emails
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The 25 largest energy management system providers based in the United States

Ranked by team size
Top 25 of 1,381 energy management system providers based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy management system providers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceWaukesha, WI, United StatesHQ checked Sep 16, 20265,001-10,0003,797 contacts →

Partial evidence

“Generac is the total energy solutions company powering a smarter world.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceAustin, TX, United StatesHQ checked Sep 16, 20261,001-5,0002,121 contacts →

Partial evidence

“CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceSan Ramon, CA, United StatesHQ checked Sep 16, 20261,001-5,0001,763 contacts →

Partial evidence

“At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.”

Source: RevenueBase Database · checked Sep 16, 2026
4Strong evidenceAustin, TX, United StatesHQ checked Sep 16, 20261,001-5,0001,694 contacts →

Strong evidence

“Enverus is a single source platform for management, development and acquisition, within the entire energy value chain.”

Source: RevenueBase Database · checked Sep 16, 2026
5Strong evidenceHouston, TX, United StatesHQ checked Sep 16, 20261,001-5,0001,563 contacts →

Strong 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 16, 2026
6Partial evidenceFramingham, MA, United StatesHQ checked Sep 16, 20261,001-5,0001,383 contacts →

Partial evidence

“Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceWashington, DC, United StatesHQ checked Sep 16, 2026501-1,000864 contacts →

Partial evidence

“Arcadia is the global utility data and energy solutions platform.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceEdison, NJ, United StatesHQ checked Sep 16, 20261,001-5,000669 contacts →

Partial evidence

“Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.”

Source: RevenueBase Database · checked Sep 16, 2026
9Strong evidenceCedar Park, TX, United StatesHQ checked Sep 16, 2026501-1,000516 contacts →

Strong evidence

“ETS-Lindgren is the leading supplier of energy management solutions for the industrial and commercial markets.”

Source: RevenueBase Database · checked Sep 16, 2026
10Strong evidenceCarmel, IN, United StatesHQ checked Sep 16, 2026201-500478 contacts →

Strong evidence

“ACES is a nationwide energy management company that helps its clients buy, sell, and manage the complexity of the U.S.”

Source: RevenueBase Database · checked Sep 16, 2026
11Strong evidenceSan Diego, CA, United StatesHQ checked Sep 16, 2026201-500467 contacts →

Strong evidence

“Calpine Solutions is a retail energy provider with a robust suite of customized products, analytics, and data management solutions to turn a corporate electricity expense into a…”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceHouston, TX, United StatesHQ checked Sep 16, 2026501-1,000417 contacts →

Partial evidence

“At Stem, we’re reimagining technology to drive the energy transition.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceShelton, CT, United StatesHQ checked Sep 16, 2026201-500366 contacts →

Partial evidence

“Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceHouston, TX, United StatesHQ checked Sep 16, 2026n/a356 contacts →

Partial evidence

“Now IHI Energy Solutions, Inc, visit our page”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceNorman, OK, United StatesHQ checked Sep 16, 2026201-500346 contacts →

Indirect evidence

“PCIEnergySolutions is a tight-knit team of 300 diligent product experts, engineers, business analysts, and more.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidencePark Ridge, NJ, United StatesHQ checked Sep 16, 2026201-500336 contacts →

Indirect evidence

“National Utility Service, Inc.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidencePortland, OR, United StatesHQ checked Sep 16, 2026201-500288 contacts →

Partial evidence

“At Cascade Energy, we believe in better.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidencePittsburgh, PA, United StatesHQ checked Sep 16, 20261,001-5,000252 contacts →

Partial evidence

“Direct Energy Business is part of a leading energy and energy-related services provider that is focused on helping customers make their businesses better.”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceBrooklyn, NY, United StatesHQ checked Sep 16, 202651-200250 contacts →

Partial evidence

EnergyHub is a software technology company based in New York, NY.”

Source: RevenueBase Database · checked Sep 16, 2026
20Strong evidenceWestbury, NY, United StatesHQ checked Sep 16, 2026201-500241 contacts →

Strong 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 16, 2026
21Strong evidenceHouston, TX, United StatesHQ checked Sep 16, 2026201-500233 contacts →

Strong evidence

“At Mantis Innovation, our experts provide data-driven, consultative services designed to optimize your facility, sustainability, and energy management strategies, while ultimately…”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceHouston, TX, United StatesHQ checked Sep 16, 202651-200223 contacts →

Strong evidence

“ANB Systems is a leading software provider for the energy industry.”

Source: RevenueBase Database · checked Sep 16, 2026
23Strong evidenceArlington, TX, United StatesHQ checked Sep 16, 2026201-500216 contacts →

Strong evidence

“Priority Power is the energy partner delivering the systems, expertise and execution required to power enterprise growth.”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceBeverly, MA, United StatesHQ checked Sep 16, 2026201-500210 contacts →

Partial evidence

“Dalkia Energy Solutions, a subsidiary of the EDF (Électricité de France) Group, is a national leader in energy efficiency and sustainability for commercial, industrial, and…”

Source: RevenueBase Database · checked Sep 16, 2026
25Strong evidenceFort Lauderdale, FL, United StatesHQ checked Sep 16, 202651-200205 contacts →

Strong 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 16, 2026

Showing 25 of 1,381 energy management system providers based in the United States

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Energy management system providers based in the United States at a glance

As of Sep 16, 2026
45.1%Verified-email coverage
27.6Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · Houston
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
592
11-50
519
51-200
196
201-500
38
501-1,000
12
1,001-5,000
14
5,001-10,000
3
10001+
5

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 1,381 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 energy management system providers, 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 “energy management system providers”. 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 energy management system providers), 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 energy management system providers, 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, 17,193 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 16, 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 energy management system providers, 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 energy management system providers are there based in the United States?

RevenueBase identified 1,381 energy management system providers 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?

Generac, headquartered in Waukesha, tops this list with the largest team on record.

Which city has the most energy management system providers?

Houston leads with 60 headquartered companies, followed by New York (53) and Austin (26).

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 17,193 verified decision-maker contacts tracked across these 1,381 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 16, 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.