Company lists · Data refreshed September 2026

Top 25 Concentrated photovoltaic companies based in the United States

Name: Concentrated photovoltaic 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 188 companies tracked

RevenueBase identified 188 concentrated photovoltaic companies headquartered in the United States as of September 2026 and tracks 8,996 professional contacts across them, including 2,297 with verified work emails. San Jose is the largest hub.

This list covers concentrated photovoltaic 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

188Companies

8,996Contacts tracked

2,297Verified emails

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The 25 largest concentrated photovoltaic companies based in the United States

Ranked by team size

Top 25 of 188 concentrated photovoltaic 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 concentrated photovoltaic 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	First Solar	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 19, 2026	5,001-10,000	5,581 contacts →
	Indirect evidence “First Solar, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
2	Terabase Energy	Indirect evidence	Berkeley, CA, United StatesHQ checked Sep 19, 2026	51-200	190 contacts →
	Indirect evidence “Founded in 2019, Terabase Energy is a solar technology company whose mission is to reduce the cost and increase the scalability of solar by building an interconnected digital and…” Source: RevenueBase Database · checked Sep 19, 2026
3	Solyndra	Partial evidence	Fremont, CA, United StatesHQ checked Sep 19, 2026	501-1,000	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 19, 2026
4	SEG Solar, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	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 19, 2026
5	Emeren Group	Indirect evidence	Norwalk, CT, United StatesHQ checked Sep 19, 2026	51-200	83 contacts →
	Indirect evidence “Emeren Group Ltd is a leading global solar project developer and operator, with local professional teams in more than 10 countries around the world.” Source: RevenueBase Database · checked Sep 19, 2026
6	Waaree Solar Americas INC	Indirect evidence	Brookshire, TX, United StatesHQ checked Sep 19, 2026	201-500	78 contacts →
	Indirect evidence “Waaree is a global leader in solar energy, boasting the largest presence outside of China.” Source: RevenueBase Database · checked Sep 19, 2026
7	Cenergy Power	Indirect evidence	Aliso Viejo, CA, United StatesHQ checked Sep 19, 2026	11-50	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 19, 2026
8	Stellar Solar	Indirect evidence	Oceanside, CA, United StatesHQ checked Sep 19, 2026	51-200	68 contacts →
	Indirect evidence “Stellar Solar is a San Diego based solar company that has been voted the best solar company in San Diego in 2011, 2013, 2014, 2015, 2017, 2018, 2019 and 2020 by the readers of the…” Source: RevenueBase Database · checked Sep 19, 2026
9	Staten Solar	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	51-200	64 contacts →
	Indirect evidence “Staten Solar is an international developer and EPC of solar PV, Storage and Fast EV Charging systems.” Source: RevenueBase Database · checked Sep 19, 2026
10	Solon Corporation	Partial evidence	Tucson, AZ, United StatesHQ checked Sep 19, 2026	11-50	58 contacts →
	Partial evidence “SOLON Corporation is a leading provider of large commercial and utility-scale photovoltaic system solutions and battery energy storage systems to the Southwest United States.” Source: RevenueBase Database · checked Sep 19, 2026
11	Swift Solar	Indirect evidence	San Carlos, CA, United StatesHQ checked Sep 19, 2026	11-50	49 contacts →
	Indirect evidence “Swift Solar is transforming solar energy with groundbreaking perovskite tandem technology.” Source: RevenueBase Database · checked Sep 19, 2026
12	JA Solar AZ LLC	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 19, 2026	501-1,000	46 contacts →
	Partial evidence “As a photovoltaic power generation solution platform, JA Solar Technology Co, Ltd.” Source: RevenueBase Database · checked Sep 19, 2026
13	Hounen Solar America INC	Indirect evidence	Orangeburg, SC, United StatesHQ checked Sep 19, 2026	201-500	42 contacts →
	Indirect evidence “Hounen Solar America Inc, established in 2022, boasts a state-of-the-art square-foot manufacturing facility in Orangeburg, SC.” Source: RevenueBase Database · checked Sep 19, 2026
14	AMPT	Indirect evidence	Fort Collins, CO, United StatesHQ checked Sep 19, 2026	51-200	36 contacts →
	Indirect evidence “Ampt was founded in 2007 with a mission to improve PV power generation and lower the cost of renewable energy.” Source: RevenueBase Database · checked Sep 19, 2026
15	Option ONE Solar	Partial evidence	Apple Valley, CA, United StatesHQ checked Sep 19, 2026	11-50	35 contacts →
	Partial evidence “Option One Corporation (aka dba Option One Solar) Option One Solar Vision: To offer our customers the world’s highest performing Photovoltaic solar products, a top quality…” Source: RevenueBase Database · checked Sep 19, 2026
16	Sunpeak Commercial Solar Provider	Indirect evidence	Madison, WI, United StatesHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “SunPeak is a leading turnkey developer of commercial solar PV headquartered in Madison, WI.” Source: RevenueBase Database · checked Sep 19, 2026
17	Tandem PV	Indirect evidence	San Jose, CO, United StatesHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “Tandem PV, based in Silicon Valley and founded in 2016, is driving the transition to a net-zero economy by developing state-of-the-art perovskite-based solar panels.” Source: RevenueBase Database · checked Sep 19, 2026
18	Solar Liberty	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 19, 2026	51-200	28 contacts →
	Indirect evidence “Solar Liberty is committed to promoting energy independence through widespread installation of solar electric systems with a focus on engineering for system optimization.” Source: RevenueBase Database · checked Sep 19, 2026
19	FLS Energy	Indirect evidence	Asheville, NC, United StatesHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “Cypress Creek Renewables is proud to have joined forces with FLS Energy.” Source: RevenueBase Database · checked Sep 19, 2026
20	Cool Earth Solar	Indirect evidence	Stockton, CA, United StatesHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “A team of seasoned renewable energy professionals and engineers dedicated to enabling more of the world to be powered by solar energy.” Source: RevenueBase Database · checked Sep 19, 2026
21	Allearth Renewables, INC	Indirect evidence	Williston, VT, United StatesHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “AllEarth Renewables is a national leader in solar energy, with thousands of installations throughout the country, including over in Vermont.” Source: RevenueBase Database · checked Sep 19, 2026
22	Power Factor	Indirect evidence	Dundalk, MD, United StatesHQ checked Sep 19, 2026	51-200	20 contacts →
	Indirect evidence “Power Factor wants to be the best installation company in the solar industry.” Source: RevenueBase Database · checked Sep 19, 2026
23	Energy Saving Pros	Partial evidence	Loomis, CA, United StatesHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “We are an established Photovoltaic Solar (PV) developer and installer based in Northern California.” Source: RevenueBase Database · checked Sep 19, 2026
24	Aptos Solar Technology	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Aptos Solar Technology is a supplier of high-efficiency solar panels for residential, commercial, and utility applications.” Source: RevenueBase Database · checked Sep 19, 2026
25	Ubiquity Solar INC	Indirect evidence	Endicott, NY, United StatesHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Ubiquity Solar will leverage its proprietary advanced PV technology and capital efficient manufacturing business model to create a leading North American solar energy solution for…” 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: concentrated photovoltaic 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 concentrated photovoltaic companies.
Partial evidence: Its own public description names part of concentrated photovoltaic companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name concentrated photovoltaic 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 188 concentrated photovoltaic companies based in the United States

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Concentrated photovoltaic companies based in the United States at a glance

As of Sep 19, 2026

25.5%Verified-email coverage

47.9Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · San Jose

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 188 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 concentrated photovoltaic 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 “concentrated photovoltaic 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 concentrated photovoltaic 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 concentrated photovoltaic 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, 2,297 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.

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 concentrated photovoltaic 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 concentrated photovoltaic companies are there based in the United States?

RevenueBase identified 188 concentrated photovoltaic 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 concentrated photovoltaic companies?

San Jose leads with 7 headquartered companies, followed by San Francisco (6) and Phoenix (5).

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 2,297 verified decision-maker contacts tracked across these 188 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.