Company lists · Data refreshed September 2026
Top 25 Photovoltaic materials companies based in the United States
RevenueBase identified 480 photovoltaic materials companies headquartered in the United States as of September 2026 and tracks 17,252 professional contacts across them, including 5,252 with verified work emails. San Francisco is the largest hub.
This list covers photovoltaic materials 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 16, 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.
The 25 largest photovoltaic materials companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,581 contacts → | ||||
Indirect evidence “First Solar, Inc.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 954 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 791 contacts → | ||||
Indirect evidence “About Hemlock Semiconductor Hemlock Semiconductor Operations (HSC) is a leading provider of hyper-pure polycrystalline silicon (polysilicon) and other silicon-based products used…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 624 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 607 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 525 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 315 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 270 contacts → | ||||
Indirect evidence “SolarWorld manufactures and sells solar power solutions and in doing so contributes to a cleaner energy supply worldwide.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 221 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 163 contacts → | ||||
Indirect evidence “T1 Energy (NYSE: TE) is building an integrated U.S.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 159 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 153 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 151 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 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 128 contacts → | ||||
Partial evidence “NxEdge delivers engineered materials and coating solutions for industrial thin-film, semiconductor, and solar energy applications worldwide.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 122 contacts → | ||||
Indirect evidence “Mission Solar Energy is America's Module Company.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 114 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 91 contacts → | ||||
Indirect evidence “MiaSolé is a producer of lightweight, flexible and power solar cells.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 86 contacts → | ||||
Indirect evidence “Good Energy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 86 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 84 contacts → | ||||
Indirect evidence “Harvest Solar is an innovative and growing Michigan-based company leading the clean energy transition in the Midwest.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 84 contacts → | ||||
Indirect evidence “Fortune Energy is a leading nationwide wholesale distributor of top-tier solar products we provide from our warehouses.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 80 contacts → | ||||
Indirect evidence “We bring together 40 years of R&D, 15 years of manufacturing, numerous awards and extensive patent protection to cement our leadership as the leading provider of CIGS thin-film…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 78 contacts → | ||||
Indirect evidence “Waaree is a global leader in solar energy, boasting the largest presence outside of China.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 75 contacts → | ||||
Indirect evidence “Ceres Technologies, Inc.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 74 contacts → | ||||
Indirect evidence “Cenergy Power is a California-based national solar company comprised of seasoned power system professionals and financial experts focused on one thing: delivering unmatched value…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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: photovoltaic materials 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 photovoltaic materials companies.
- Partial evidence
- Its own public description names part of photovoltaic materials companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name photovoltaic materials 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 480 photovoltaic materials companies based in the United States
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Photovoltaic materials companies based in the United States at a glance
As of Sep 16, 2026Companies by employee count
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 480 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 photovoltaic materials 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 “photovoltaic materials 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 photovoltaic materials 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 photovoltaic materials 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, 5,252 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 16, 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 photovoltaic materials 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 photovoltaic materials companies are there based in the United States?
RevenueBase identified 480 photovoltaic materials 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?
First Solar, headquartered in Tempe, tops this list with the largest team on record.
Which city has the most photovoltaic materials companies?
San Francisco leads with 10 headquartered companies, followed by San Jose (10) and Houston (8).
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 5,252 verified decision-maker contacts tracked across these 480 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 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 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.
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