Company lists · Data refreshed September 2026

Top 25 Solar module manufacturers based in the United States

RevenueBase identified 436 solar module manufacturers headquartered in the United States as of September 2026 and tracks 21,566 professional contacts across them, including 6,543 with verified work emails. San Francisco is the largest hub.

This list covers solar module manufacturers 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
436Companies
21,566Contacts tracked
6,543Verified emails
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The 25 largest solar module manufacturers based in the United States

Ranked by team size
Top 25 of 436 solar module manufacturers 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 module manufacturers: 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 evidenceTempe, AZ, United StatesHQ checked Sep 18, 20265,001-10,0005,581 contacts →

Partial evidence

“First Solar, Inc.”

Source: RevenueBase Database · checked Sep 18, 2026
2Partial evidenceFremont, CA, United StatesHQ checked Sep 18, 20261,001-5,0003,130 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 18, 2026
3Strong evidenceIrvine, CA, United StatesHQ checked Sep 18, 2026501-1,000954 contacts →

Strong 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
4Partial 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
5Partial evidenceAlbuquerque, NM, United StatesHQ checked Sep 18, 202651-200525 contacts →

Partial evidence

“We’re reshaping the solar landscape with faster installs, stronger systems, and real support that helps pros work smarter.”

Source: RevenueBase Database · checked Sep 18, 2026
6Indirect evidenceRocklin, CA, United StatesHQ checked Sep 18, 2026201-500332 contacts →

Indirect evidence

“Innovative and sustainable key technologies are prerequisites for renewable energy supply.”

Source: RevenueBase Database · checked Sep 18, 2026
7Strong evidenceCampbell, CA, United StatesHQ checked Sep 18, 202651-200331 contacts →

Strong evidence

“Tigo Energy is a global leader in Flex MLPE (Module Level Power Electronics), dedicated to accelerating the adoption of solar energy through innovation, quality, and…”

Source: RevenueBase Database · checked Sep 18, 2026
8Partial evidencePataskala, OH, United StatesHQ checked Sep 18, 20261,001-5,000315 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
9Strong evidenceHillsboro, OR, United StatesHQ checked Sep 18, 20261,001-5,000270 contacts →

Strong evidence

“SolarWorld manufactures and sells solar power solutions and in doing so contributes to a cleaner energy supply worldwide.”

Source: RevenueBase Database · checked Sep 18, 2026
10Partial evidenceSt Paul, MN, United StatesHQ checked Sep 18, 2026201-500218 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
11Partial evidenceTorrance, CA, United StatesHQ checked Sep 18, 2026501-1,000178 contacts →

Partial evidence

“At Verengo Solar we market, sell, and install solar photovoltaic systems, which enable homeowners to save money on their electricity by providing a smart and sustainable…”

Source: RevenueBase Database · checked Sep 18, 2026
12Strong evidenceMather, CA, United StatesHQ checked Sep 18, 2026201-500165 contacts →

Strong evidence

“The smartest eBOS in solar We manufacture simpler electrical systems that save time, cut labor, and reduce total installation cost.”

Source: RevenueBase Database · checked Sep 18, 2026
13Partial evidenceLongmont, CO, United StatesHQ checked Sep 18, 202651-200163 contacts →

Partial evidence

“We help you capture the benefits of clean solar energy.”

Source: RevenueBase Database · checked Sep 18, 2026
14Indirect evidenceAustin, TX, United StatesHQ checked Sep 18, 202651-200163 contacts →

Indirect evidence

“T1 Energy (NYSE: TE) is building an integrated U.S.”

Source: RevenueBase Database · checked Sep 18, 2026
15Strong evidenceMountain Iron, MN, United StatesHQ checked Sep 18, 2026501-1,000159 contacts →

Strong evidence

“Founded in 2010, Heliene is an American manufacturer of high-quality solar modules with a commitment to U.S.”

Source: RevenueBase Database · checked Sep 18, 2026
16Partial evidenceFremont, CA, United StatesHQ checked Sep 18, 2026501-1,000151 contacts →

Partial evidence

“Solyndra designs and manufactures photovoltaic systems, comprised of panels and mounting hardware, for the commercial rooftop market.”

Source: RevenueBase Database · checked Sep 18, 2026
17Indirect evidenceAlbuquerque, NM, United StatesHQ checked Sep 18, 2026201-500144 contacts →

Indirect evidence

“SolAero Technologies Corp.”

Source: RevenueBase Database · checked Sep 18, 2026
18Strong evidenceSan Antonio, TX, United StatesHQ checked Sep 18, 202651-200122 contacts →

Strong evidence

“Mission Solar Energy is America's Module Company.”

Source: RevenueBase Database · checked Sep 18, 2026
19Partial evidenceGreenwood, SC, United StatesHQ checked Sep 18, 2026201-500114 contacts →

Partial evidence

“ES Foundry is the only US-based pure play solar foundry that provides Domestic Content Bonus ITC compliant product solutions for US end customers.”

Source: RevenueBase Database · checked Sep 18, 2026
20Strong evidenceHouston, TX, United StatesHQ checked Sep 18, 2026201-50086 contacts →

Strong evidence

“Founded in 2021, SEG is a leading vertically integrated PV manufacturer headquartered in Houston, Texas, U.S, and is dedicated to delivering reliable and cost-effective solar…”

Source: RevenueBase Database · checked Sep 18, 2026
21Partial evidenceJackson, MI, United StatesHQ checked Sep 18, 202651-20084 contacts →

Partial evidence

“Harvest Solar is an innovative and growing Michigan-based company leading the clean energy transition in the Midwest.”

Source: RevenueBase Database · checked Sep 18, 2026
22Partial evidenceSimi Valley, CA, United StatesHQ checked Sep 18, 202651-20084 contacts →

Partial evidence

“Fortune Energy is a leading nationwide wholesale distributor of top-tier solar products we provide from our warehouses.”

Source: RevenueBase Database · checked Sep 18, 2026
23Partial evidenceHerndon, VA, United StatesHQ checked Sep 18, 202651-20083 contacts →

Partial evidence

“GreenBrilliance provides turnkey, Made-in-USA, solar solutions in Virginia, Maryland, Washington DC, New Jersey, Pennsylvania, Delaware, and West Virginia.”

Source: RevenueBase Database · checked Sep 18, 2026
24Partial evidenceHayward, CA, United StatesHQ checked Sep 18, 202651-20079 contacts →

Partial evidence

“IronRidge - Make Solar Stronger™ An Enstall Company.”

Source: RevenueBase Database · checked Sep 18, 2026
25Partial evidenceBrookshire, TX, United StatesHQ checked Sep 18, 2026201-50078 contacts →

Partial evidence

“Waaree is a global leader in solar energy, boasting the largest presence outside of China.”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 25 of 436 solar module manufacturers based in the United States

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Solar module manufacturers based in the United States at a glance

As of Sep 18, 2026
30.3%Verified-email coverage
49.5Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · San Francisco
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
129
11-50
153
51-200
86
201-500
29
501-1,000
18
1,001-5,000
14
5,001-10,000
2
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 436 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 module manufacturers, 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 module manufacturers”. 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 module manufacturers), 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 module manufacturers, 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, 6,543 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 module manufacturers, 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 module manufacturers are there based in the United States?

RevenueBase identified 436 solar module manufacturers 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?

First Solar, headquartered in Tempe, tops this list with the largest team on record.

Which city has the most solar module manufacturers?

San Francisco leads with 11 headquartered companies, followed by Austin (9) and San Jose (9).

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 6,543 verified decision-maker contacts tracked across these 436 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.