Company lists · Data refreshed September 2026

Top 25 Solar power technology providers based in the United States

Name: Solar power technology providers 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 4,275 companies tracked

RevenueBase identified 4,275 solar power technology providers headquartered in the United States as of September 2026 and tracks 176,503 professional contacts across them, including 68,189 with verified work emails. San Diego is the largest hub.

This list covers solar power technology 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 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

4,275Companies

176,503Contacts tracked

68,189Verified emails

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The 25 largest solar power technology providers based in the United States

Ranked by team size

Top 25 of 4,275 solar power technology providers 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 power technology 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	TESLA	Indirect evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	10001+	64,646 contacts →
	Indirect evidence “Tesla is accelerating the world’s transition to sustainable abundance.” Source: RevenueBase Database · checked Sep 18, 2026
2	Sunrun	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 18, 2026	10001+	7,974 contacts →
	Indirect evidence “Life runs on clean energy.” Source: RevenueBase Database · checked Sep 18, 2026
3	First Solar	Partial evidence	Tempe, AZ, United StatesHQ checked Sep 18, 2026	5,001-10,000	5,581 contacts →
	Partial evidence “First Solar, Inc.” Source: RevenueBase Database · checked Sep 18, 2026
4	Enphase Energy	Strong evidence	Fremont, CA, United StatesHQ checked Sep 18, 2026	1,001-5,000	3,130 contacts →
	Strong 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 18, 2026
5	Sunpower Corporation	Indirect evidence	Richmond, CA, United StatesHQ checked Sep 18, 2026	1,001-5,000	2,675 contacts →
	Indirect evidence “We believe clean energy and backup storage should be accessible to everybody.” Source: RevenueBase Database · checked Sep 18, 2026
6	Fluence	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 18, 2026	1,001-5,000	1,863 contacts →
	Indirect evidence “To achieve our mission, we design, deploy, and operate the world’s most advanced modular energy storage products, comprehensive lifecycle services, and AI-enabled asset management…” Source: RevenueBase Database · checked Sep 18, 2026
7	Mitsubishi Power Americas	Strong evidence	Lake Mary, FL, United StatesHQ checked Sep 18, 2026	1,001-5,000	1,859 contacts →
	Strong evidence “Mitsubishi Power Americas is creating a future that works for people and the planet through innovative power generation technology and solutions.” Source: RevenueBase Database · checked Sep 18, 2026
8	Freedom Forever	Partial evidence	Temecula, CA, United StatesHQ checked Sep 18, 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 18, 2026
9	Trinity Solar	Partial evidence	Wall Township, NJ, United StatesHQ checked Sep 18, 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 18, 2026
10	Solv Energy	Partial evidence	San Diego, CA, United StatesHQ checked Sep 18, 2026	1,001-5,000	1,286 contacts →
	Partial 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 18, 2026
11	Blue Raven Solar	Partial evidence	Orem, UT, United StatesHQ checked Sep 18, 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 18, 2026
12	Qcells North America	Partial evidence	Irvine, CA, United StatesHQ checked Sep 18, 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 18, 2026
13	Nextracker INC	Strong evidence	Fremont, CA, United StatesHQ checked Sep 18, 2026	501-1,000	944 contacts →
	Strong evidence “Since day one, Nextracker’s mission has been to transition the world to affordable, renewable power, by developing the highest-performing and resilient solar tracking technologies…” Source: RevenueBase Database · checked Sep 18, 2026
14	Recurrent Energy	Partial evidence	Austin, United StatesHQ checked Sep 18, 2026	501-1,000	931 contacts →
	Partial 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 18, 2026
15	ION Solar	Partial evidence	Provo, UT, United StatesHQ checked Sep 18, 2026	501-1,000	912 contacts →
	Partial evidence “Ion Solar is a premium, full-service solar provider.” Source: RevenueBase Database · checked Sep 18, 2026
16	Array Technologies	Strong evidence	Albuquerque, NM, United StatesHQ checked Sep 18, 2026	1,001-5,000	890 contacts →
	Strong evidence “ARRAY Technologies (NASDAQ: ARRY) is a leading American company and global provider of utility-scale solar tracker technology.” Source: RevenueBase Database · checked Sep 18, 2026
17	Pattern Energy	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 18, 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 18, 2026
18	Powersecure, INC	Indirect evidence	Durham, NC, United StatesHQ checked Sep 18, 2026	501-1,000	740 contacts →
	Indirect 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 18, 2026
19	LUMIO	Partial evidence	Lehi, UT, United StatesHQ checked Sep 18, 2026	5,001-10,000	719 contacts →
	Partial evidence “We’re on a mission to make power personal.” Source: RevenueBase Database · checked Sep 18, 2026
20	Strata Clean Energy	Partial evidence	Durham, NC, United StatesHQ checked Sep 18, 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 18, 2026
21	Depcom Power, INC	Strong evidence	Scottsdale, AZ, United StatesHQ checked Sep 18, 2026	1,001-5,000	624 contacts →
	Strong 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 18, 2026
22	Nexamp	Partial evidence	Boston, MA, United StatesHQ checked Sep 18, 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 18, 2026
23	Greentech Renewables	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 18, 2026	1,001-5,000	595 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
24	Apex Clean Energy	Indirect evidence	Charlottesville, VA, United StatesHQ checked Sep 18, 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 18, 2026
25	Palmetto	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 18, 2026	201-500	539 contacts →
	Indirect evidence “Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” 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: solar power technology providers. 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 solar power technology providers.
Partial evidence: Its own public description names part of solar power technology providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar power technology providers. 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 4,275 solar power technology providers based in the United States

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Solar power technology providers based in the United States at a glance

As of Sep 18, 2026

38.6%Verified-email coverage

41.3Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · San Diego

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

1,632

11-50

1,718

51-200

628

201-500

155

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 4,275 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 power technology 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 “solar power technology 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 solar power technology 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 solar power technology 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, 68,189 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.

Solar power technology providers 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 solar power technology 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 solar power technology providers are there based in the United States?

RevenueBase identified 4,275 solar power technology 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?

TESLA, headquartered in Austin, tops this list with the largest team on record.

Which city has the most solar power technology providers?

San Diego leads with 86 headquartered companies, followed by Houston (80) and Austin (73).

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 68,189 verified decision-maker contacts tracked across these 4,275 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.