Company lists · Data refreshed September 2026

Top 25 Renewable thermal power companies based in the United States

RevenueBase identified 526 company matches for renewable thermal power companies associated with the United States as of September 2026 and tracks 20,172 professional contacts across them, including 8,306 with verified work emails. Houston is the largest hub.

This list covers company matches for renewable thermal power companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 16, 2026 How this list was built
526Companies
20,172Contacts tracked
8,306Verified emails
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The 25 largest renewable thermal power companies based in the United States

Ranked by team size
Top 25 of 526 company matches for renewable thermal power companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, TX, United StatesHQ recorded Sep 16, 20261,001-5,0002,112 contacts →

Exact match

“A business unit of Constellation (NASDAQ: CEG), Calpine Corporation is America’s largest generator of electricity from natural gas and geothermal resources with operations in…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2Exact matchReno, NV, United StatesHQ recorded Sep 16, 20261,001-5,0001,281 contacts →

Exact match

“With over five decades of experience, Ormat Technologies, Inc.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3Exact matchAustin, United StatesHQ recorded Sep 16, 2026501-1,000931 contacts →

Exact match

“Recurrent Energy, a subsidiary of Canadian Solar Inc, is one of the world's largest and most geographically diversified utility-scale solar and energy storage project development…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, CA, United StatesHQ recorded Sep 16, 2026501-1,000795 contacts →

Exact match

“Clearway Energy Group’s vision is a world powered by clean energy.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Sep 16, 2026501-1,000755 contacts →

Exact match

“Pattern Energy is one of the world’s largest privately-owned developers and operators of wind, solar, transmission, and energy storage projects.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6Exact matchScottsdale, AZ, United StatesHQ recorded Sep 16, 20261,001-5,000624 contacts →

Exact match

“DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7Exact matchBoston, MA, United StatesHQ recorded Sep 16, 2026201-500607 contacts →

Exact match

“Nexamp is leading the transformation to the new energy economy with proven solutions for the deployment and operation of solar energy assets.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8Exact matchCharlottesville, VA, United StatesHQ recorded Sep 16, 2026201-500594 contacts →

Exact match

“Apex Clean Energy was founded with a singular focus: to accelerate the shift to clean energy.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9Exact matchMiami, FL, United StatesHQ recorded Sep 16, 2026201-500428 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10Exact matchPataskala, OH, United StatesHQ recorded Sep 16, 20261,001-5,000315 contacts →

Exact match

“Illuminate USA is an American leader in advanced clean energy manufacturing, dedicated to delivering cutting-edge solar panel technology and sustainable energy solutions.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11Exact matchValhalla, NY, United StatesHQ recorded Sep 16, 2026201-500304 contacts →

Exact match

“Who We Are Con Edison Development develops, owns and operates renewable and energy infrastructure projects.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12Exact matchValhalla, NY, United StatesHQ recorded Sep 16, 2026201-500268 contacts →

Exact match

“Con Edison Clean Energy Businesses, Inc.(Con Edison CEB) is a leader in the renewable energy industry.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13Exact matchDenver, CO, United StatesHQ recorded Sep 16, 2026201-500252 contacts →

Exact match

“Onward Energy is an independent power platform that owns and operates over MW of utility-scale wind, solar and natural gas generation projects across the U.S.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14Exact matchDenver, CO, United StatesHQ recorded Sep 16, 2026201-500246 contacts →

Exact match

“Founded in 2009, Pivot Energy is a leading national renewable energy provider and independent power producer that develops, owns, and operates solar and energy storage projects.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15Exact matchCarlsbad, CA, United StatesHQ recorded Sep 16, 2026201-500244 contacts →

Exact match

“rethinkenergy BayWa r.e is a leading global renewable energy company committed to delivering best-in-class projects, services and solutions.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16Exact matchMiami, FL, United StatesHQ recorded Sep 16, 2026201-500220 contacts →

Exact match

“Origis Energy is accelerating the transition to a carbon-free future by Reimagining ZeroSM.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17Exact matchDes Moines, IA, United StatesHQ recorded Sep 16, 2026501-1,000218 contacts →

Exact match

“BHE Renewables delivers sustainable energy solutions for customers and communities by producing renewable energy for both the wholesale market and for customers under long-term…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18Exact matchSt. Paul, MN, United StatesHQ recorded Sep 16, 2026201-500218 contacts →

Exact match

“Novel Energy delivers solar energy solutions helping provide sustainable options to meet evolving energy needs.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19Exact matchHouston, CA, United StatesHQ recorded Sep 16, 202651-200213 contacts →

Exact match

“Fervo Energy provides 24/7 carbon-free energy through the development of next-generation geothermal power.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20Exact matchSchenectady, CA, United StatesHQ recorded Sep 16, 202651-200199 contacts →

Exact match

“DSD Renewables is a renewable energy solutions platform enabling a more sustainable future by deploying and operating renewable energy solutions, making solar, storage, and EV…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21Exact matchBoise, ID, United StatesHQ recorded Sep 16, 202651-200190 contacts →

Exact match

“Clenera, LLC (“Clēnera”), a subsidiary of Enlight Renewable Energy, LTD, is a developer of utility-scale solar and energy storage facilities headquartered in Boise, Idaho.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22Exact matchSilver Spring, MD, United StatesHQ recorded Sep 16, 202651-200167 contacts →

Exact match

“Competitive Power Ventures (CPV) has 25 years of unprecedented success in the development and operation of highly efficient and low emitting electric generation and renewable…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-200156 contacts →

Exact match

“Founded in 2017, Catalyze is a fully integrated developer and Independent Power Producer (IPP) of distributed renewable energy assets.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24Exact matchNew York, United StatesHQ recorded Sep 16, 202651-200153 contacts →

Exact match

“REV Renewables, an LS Power company, is an industry leader in the development, acquisition and operation of renewables and energy storage.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25Exact matchAlameda, CA, United StatesHQ recorded Sep 16, 202651-200145 contacts →

Exact match

“We're hiring!”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

Showing 25 of 526 renewable thermal power companies based in the United States

See the full list, filter by size, metro and specialty, and access 8,306 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable thermal power companies based in the United States at a glance

As of Sep 16, 2026
41.2%Verified-email coverage
38.3Average contacts per company
11-50Median size (employees)
5.1%Largest-city concentration · Houston
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
211
11-50
202
51-200
69
201-500
18
501-1,000
12
1,001-5,000
11
5,001-10,000
2

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 526 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “renewable thermal power companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 8,306 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “renewable thermal power companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable thermal power companies are there based in the United States?

RevenueBase identified 526 company matches for renewable thermal power companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Calpine tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most renewable thermal power companies?

Houston leads with 27 company records, followed by New York (26) and Austin (16).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 8,306 professional contacts with verified work emails tracked across these 526 companies; direct dials are available where recorded.

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 SmartSearch, 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.