Company lists · Data refreshed September 2026

Top 25 Utility scale solar companies based in the United States

Name: Utility scale solar 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 19, 2026 3,083 companies tracked

RevenueBase identified 3,083 utility scale solar companies headquartered in the United States as of September 2026 and tracks 108,628 professional contacts across them, including 40,494 with verified work emails. Houston is the largest hub.

This list covers utility scale solar 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 19, 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 19, 2026 86% judged on-target in blind review

3,083Companies

108,628Contacts tracked

40,494Verified emails

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The 25 largest utility scale solar companies based in the United States

Ranked by team size

Top 25 of 3,083 utility scale solar companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to utility scale solar 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	Constellation	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 19, 2026	10001+	9,458 contacts →
	Indirect evidence “Constellation Energy Corporation (Nasdaq: CEG), a Fortune 200 company headquartered in Baltimore, is the nation’s largest producer of reliable, emissions-free energy and a leading…” Source: RevenueBase Database · checked Sep 19, 2026
2	Sunrun	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	10001+	7,974 contacts →
	Indirect evidence “Life runs on clean energy.” Source: RevenueBase Database · checked Sep 19, 2026
3	Nextera Energy, INC	Indirect evidence	Juno Beach, FL, United StatesHQ checked Sep 19, 2026	10001+	3,478 contacts →
	Indirect evidence “NextEra Energy, Inc.(NYSE: NEE) is one of the largest electric power and energy infrastructure companies in North America and is a leading provider of electricity to American…” Source: RevenueBase Database · checked Sep 19, 2026
4	Enphase Energy	Partial evidence	Fremont, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	3,130 contacts →
	Partial evidence “Enphase Energy is a global energy technology company and the world’s leading supplier of microinverter-based solar and battery systems.” Source: RevenueBase Database · checked Sep 19, 2026
5	Invenergy	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,408 contacts →
	Indirect evidence “Invenergy is North America’s largest privately held developer, owner, and operator of innovative, reliable power infrastructure.” Source: RevenueBase Database · checked Sep 19, 2026
6	Freedom Forever	Partial evidence	Temecula, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,830 contacts →
	Partial evidence “Freedom Forever is a residential solar installation company that partners with solar sales companies in the industry.” Source: RevenueBase Database · checked Sep 19, 2026
7	Trinity Solar	Partial evidence	Wall Township, NJ, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,794 contacts →
	Partial evidence “Trinity Solar is one of the largest privately held residential solar companies in the nation.” Source: RevenueBase Database · checked Sep 19, 2026
8	Solv Energy	Strong evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,286 contacts →
	Strong evidence “SOLV Energy is a renewable energy solutions provider for utility solar, energy storage, and high voltage projects in North America.” Source: RevenueBase Database · checked Sep 19, 2026
9	Blue Raven Solar	Partial evidence	Orem, UT, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,168 contacts →
	Partial evidence “Blue Raven Solar, a SunPower Company, is a retailer of residential home solar systems.” Source: RevenueBase Database · checked Sep 19, 2026
10	Qcells North America	Partial evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	501-1,000	954 contacts →
	Partial evidence “Qcells is a renowned complete energy solutions provider in solar cell and module, energy storage, downstream project business and energy retail.” Source: RevenueBase Database · checked Sep 19, 2026
11	Wanzek Construction, Inc., A Mastec Company	Indirect evidence	Fargo, ND, United StatesHQ checked Sep 19, 2026	1,001-5,000	933 contacts →
	Indirect evidence “Wanzek Construction, Inc, a MasTec Renewables company, is a leading general construction contractor and clean energy services company headquartered in Fargo, North Dakota.” Source: RevenueBase Database · checked Sep 19, 2026
12	Recurrent Energy	Strong evidence	Austin, United StatesHQ checked Sep 19, 2026	501-1,000	931 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
13	ION Solar	Partial evidence	Provo, UT, United StatesHQ checked Sep 19, 2026	501-1,000	912 contacts →
	Partial evidence “Ion Solar is a premium, full-service solar provider.” Source: RevenueBase Database · checked Sep 19, 2026
14	Clearway Energy Group	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	501-1,000	795 contacts →
	Indirect evidence “Clearway Energy Group’s vision is a world powered by clean energy.” Source: RevenueBase Database · checked Sep 19, 2026
15	Pattern Energy	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	501-1,000	755 contacts →
	Partial evidence “Pattern Energy is one of the world’s largest privately-owned developers and operators of wind, solar, transmission, and energy storage projects.” Source: RevenueBase Database · checked Sep 19, 2026
16	Powersecure, INC	Partial evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	501-1,000	740 contacts →
	Partial evidence “PowerSecure, a Southern Company subsidiary, is a leading provider of innovative energy solutions to electric utilities and their industrial, institutional, and commercial…” Source: RevenueBase Database · checked Sep 19, 2026
17	LUMIO	Indirect evidence	Lehi, UT, United StatesHQ checked Sep 19, 2026	5,001-10,000	719 contacts →
	Indirect evidence “We’re on a mission to make power personal.” Source: RevenueBase Database · checked Sep 19, 2026
18	Baker Electric	Indirect evidence	Escondido, CA, United StatesHQ checked Sep 19, 2026	501-1,000	680 contacts →
	Indirect evidence “Baker Electric is a full-service electrical contractor and energy infrastructure expert headquartered in Escondido, California.” Source: RevenueBase Database · checked Sep 19, 2026
19	Novasource Power Services	Indirect evidence	Chandler, AZ, United StatesHQ checked Sep 19, 2026	501-1,000	631 contacts →
	Indirect evidence “NovaSource Power Services (“NovaSource”), a portfolio company of Clairvest Group Inc.(“Clairvest”, TSX: CVG) and OMERS Private Equity, the private equity arm of OMERS, is the…” Source: RevenueBase Database · checked Sep 19, 2026
20	Strata Clean Energy	Partial evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	501-1,000	631 contacts →
	Partial evidence “Strata Clean Energy is a fully integrated energy infrastructure company serving utilities, independent power producers, and hyperscalers navigating the rapid transformation of the…” Source: RevenueBase Database · checked Sep 19, 2026
21	Depcom Power, INC	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 19, 2026	1,001-5,000	624 contacts →
	Partial evidence “DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…” Source: RevenueBase Database · checked Sep 19, 2026
22	Nexamp	Partial evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	201-500	607 contacts →
	Partial evidence “Nexamp is leading the transformation to the new energy economy with proven solutions for the deployment and operation of solar energy assets.” Source: RevenueBase Database · checked Sep 19, 2026
23	Apex Clean Energy	Indirect evidence	Charlottesville, VA, United StatesHQ checked Sep 19, 2026	201-500	594 contacts →
	Indirect evidence “Apex Clean Energy was founded with a singular focus: to accelerate the shift to clean energy.” Source: RevenueBase Database · checked Sep 19, 2026
24	Posigen	Partial evidence	St. Rose, LA, United StatesHQ checked Sep 19, 2026	501-1,000	507 contacts →
	Partial evidence “PosiGen is the nation's leading residential solar and energy efficiency provider.” Source: RevenueBase Database · checked Sep 19, 2026
25	APR Energy	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 19, 2026	201-500	502 contacts →
	Indirect evidence “APR Energy delivers reliable electricity, fast.” Source: RevenueBase Database · checked Sep 19, 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: utility scale solar 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 utility scale solar companies.
Partial evidence: Its own public description names part of utility scale solar companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name utility scale solar 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 3,083 utility scale solar companies based in the United States

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Utility scale solar companies based in the United States at a glance

As of Sep 19, 2026

37.3%Verified-email coverage

35.2Average contacts per company

11-50Median size (employees)

2.1%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,068

11-50

1,268

51-200

497

201-500

133

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 3,083 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 utility scale solar 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 “utility scale solar 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 utility scale solar 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 utility scale solar 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, 40,494 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 19, 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.

Utility scale solar companies by metro

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 utility scale solar 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 utility scale solar companies are there based in the United States?

RevenueBase identified 3,083 utility scale solar 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?

Constellation, headquartered in Baltimore, tops this list with the largest team on record.

Which city has the most utility scale solar companies?

Houston leads with 64 headquartered companies, followed by San Diego (61) and New York (57).

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 40,494 verified decision-maker contacts tracked across these 3,083 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 19, 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.