Company lists · Data refreshed September 2026

Top 25 Solar cooperatives based in the United States

RevenueBase identified 2,649 solar cooperatives headquartered in the United States as of September 2026 and tracks 55,827 professional contacts across them, including 18,509 with verified work emails. San Diego is the largest hub.

This list covers solar cooperatives 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
2,649Companies
55,827Contacts tracked
18,509Verified emails
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The 25 largest solar cooperatives based in the United States

Ranked by team size
Top 25 of 2,649 solar cooperatives 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 solar cooperatives: 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
1Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 18, 202610001+7,974 contacts →

Indirect evidence

“Life runs on clean energy.”

Source: RevenueBase Database · checked Sep 18, 2026
2Partial evidenceTemecula, CA, United StatesHQ checked Sep 18, 20261,001-5,0001,830 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 18, 2026
3Indirect evidenceSan Diego, United StatesHQ checked Sep 18, 2026n/a1,199 contacts →

Indirect evidence

“The Powur Mission: Accelerate the adoption of clean energy worldwide We're empowering our community of homeowners and advisors to thrive in the global shift to sustainable energy.”

Source: RevenueBase Database · checked Sep 18, 2026
4Partial evidenceOrem, UT, United StatesHQ checked Sep 18, 20261,001-5,0001,168 contacts →

Partial evidence

“Blue Raven Solar, a SunPower Company, is a retailer of residential home solar systems.”

Source: RevenueBase Database · checked Sep 18, 2026
5Partial evidenceProvo, UT, United StatesHQ checked Sep 18, 2026501-1,000912 contacts →

Partial evidence

“Ion Solar is a premium, full-service solar provider.”

Source: RevenueBase Database · checked Sep 18, 2026
6Partial evidenceOakland, CA, United StatesHQ checked Sep 18, 2026201-500731 contacts →

Partial evidence

“GRID Alternatives is a national leader in bringing affordable solar power, clean mobility, and energy storage to underserved communities while creating pathways to life-changing…”

Source: RevenueBase Database · checked Sep 18, 2026
7Indirect evidenceLehi, UT, United StatesHQ checked Sep 18, 20265,001-10,000719 contacts →

Indirect evidence

“We’re on a mission to make power personal.”

Source: RevenueBase Database · checked Sep 18, 2026
8Partial evidenceBoston, MA, United StatesHQ checked Sep 18, 2026201-500607 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 18, 2026
9Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 18, 20261,001-5,000595 contacts →

Indirect evidence

“As Greentech Renewables, we prioritize our commitment to providing customers with exceptional service and top-tier products from prominent renewable energy manufacturers.”

Source: RevenueBase Database · checked Sep 18, 2026
10Partial evidenceSt. Rose, LA, United StatesHQ checked Sep 18, 2026501-1,000507 contacts →

Partial evidence

“PosiGen is the nation's leading residential solar and energy efficiency provider.”

Source: RevenueBase Database · checked Sep 18, 2026
11Partial evidenceChandler, AZ, United StatesHQ checked Sep 18, 202651-200484 contacts →

Partial evidence

“The future of Solar Sales”

Source: RevenueBase Database · checked Sep 18, 2026
12Partial evidenceSanta Ana, CA, United StatesHQ checked Sep 18, 20261,001-5,000459 contacts →

Partial evidence

“EnergyAid acquired Titan Solar Power's intellectual property (IP) in March of 2025 through bankruptcy court.”

Source: RevenueBase Database · checked Sep 18, 2026
13Partial evidenceWashington, DC, United StatesHQ checked Sep 18, 202651-200457 contacts →

Partial evidence

“The Solar Energy Industries Association (SEIA®) is leading the transformation to a clean energy economy.”

Source: RevenueBase Database · checked Sep 18, 2026
14Partial evidenceSandy, UT, United StatesHQ checked Sep 18, 2026201-500422 contacts →

Partial evidence

“We don’t settle at Sunder, so you can expect exceptional service from start to finish in your switch to solar.”

Source: RevenueBase Database · checked Sep 18, 2026
15Partial evidenceTampa, FL, United StatesHQ checked Sep 18, 2026201-500384 contacts →

Partial evidence

“Seminole Electric Cooperative is one of the largest generation and transmission (G&T) cooperatives in the country.”

Source: RevenueBase Database · checked Sep 18, 2026
16Indirect evidenceEl Dorado Hills, CA, United StatesHQ checked Sep 18, 2026201-500368 contacts →

Indirect evidence

“V3 was founded as a response to the stagnation within the energy industry.”

Source: RevenueBase Database · checked Sep 18, 2026
17Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 18, 2026201-500351 contacts →

Indirect evidence

“https://ourworldenergy.com/”

Source: RevenueBase Database · checked Sep 18, 2026
18Partial evidenceAsbury Park, NJ, United StatesHQ checked Sep 18, 2026201-500328 contacts →

Partial evidence

Solar Landscape is the nation’s leading distributed energy infrastructure company, transforming commercial real estate into a source of new power by deploying solar and storage at…”

Source: RevenueBase Database · checked Sep 18, 2026
19Partial evidenceTucker, GA, United StatesHQ checked Sep 18, 2026201-500317 contacts →

Partial evidence

“Oglethorpe Power is among the nation’s largest power supply cooperatives and is one of the largest energy producers in Georgia.”

Source: RevenueBase Database · checked Sep 18, 2026
20Partial evidenceMedford, OR, United StatesHQ checked Sep 18, 202651-200300 contacts →

Partial evidence

“Founded in 2017, Purelight Power has quickly grown to be one of the nations largest residential solar installer.”

Source: RevenueBase Database · checked Sep 18, 2026
21Indirect evidenceFort Collins, CO, United StatesHQ checked Sep 18, 2026201-500299 contacts →

Indirect evidence

“Platte River Power Authority is a not-for-profit, community-owned public power utility that generates and delivers safe, reliable, environmentally responsible and financially…”

Source: RevenueBase Database · checked Sep 18, 2026
22Partial evidenceSouth Portland, ME, United StatesHQ checked Sep 18, 2026201-500294 contacts →

Partial evidence

“Employee-owned solar company with over installed systems in Maine, New Hampshire, and Massachusetts.”

Source: RevenueBase Database · checked Sep 18, 2026
23Partial evidenceVerona, WI, United StatesHQ checked Sep 18, 202651-200294 contacts →

Partial evidence

“Everlight Solar provides homeowners with simple and affordable clean energy.”

Source: RevenueBase Database · checked Sep 18, 2026
24Partial evidenceNorth Fort Myers, FL, United StatesHQ checked Sep 18, 2026201-500278 contacts →

Partial evidence

“LCEC is a not-for-profit electric distribution cooperative.”

Source: RevenueBase Database · checked Sep 18, 2026
25Indirect evidencePensacola, FL, United StatesHQ checked Sep 18, 20261,001-5,000275 contacts →

Indirect evidence

“People.”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 25 of 2,649 solar cooperatives based in the United States

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Solar cooperatives based in the United States at a glance

As of Sep 18, 2026
33.2%Verified-email coverage
21.1Average contacts per company
11-50Median size (employees)
2.1%Largest-city concentration · San Diego
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
1,013
11-50
1,083
51-200
427
201-500
78
501-1,000
21
1,001-5,000
13
5,001-10,000
5
10001+
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 2,649 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 solar cooperatives, 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 “solar cooperatives”. 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 solar cooperatives), 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 solar cooperatives, 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, 18,509 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 solar cooperatives, 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 solar cooperatives are there based in the United States?

RevenueBase identified 2,649 solar cooperatives 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?

Sunrun, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most solar cooperatives?

San Diego leads with 56 headquartered companies, followed by New York (41) and Houston (40).

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 18,509 verified decision-maker contacts tracked across these 2,649 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.