Company lists · Data refreshed September 2026
Top 25 Solar thermal collectors manufacturers based in the United States
RevenueBase identified 305 solar thermal collectors manufacturers headquartered in the United States as of September 2026 and tracks 4,387 professional contacts across them, including 856 with verified work emails. San Diego is the largest hub.
This list covers solar thermal collectors 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.
The 25 largest solar thermal collectors manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 2 | 119 contacts → | ||||
Partial evidence “NY State Solar helps your friends and neighbors save on their energy bills – Our custom solar solutions are engineered from the ground-up, and every system that we install is…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 3 | 84 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 78 contacts → | ||||
Partial evidence “Waaree is a global leader in solar energy, boasting the largest presence outside of China.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 5 | 76 contacts → | ||||
Partial evidence “Established in 1974, HTP Comfort Solutions LLC is a full-fledged manufacturer on the cutting edge of energy efficient space and water heating technology.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 6 | 73 contacts → | ||||
Partial evidence “With twenty years of experience, we simplify solar solutions for residential, commercial, and industrial customers.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 7 | 68 contacts → | ||||
Partial 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 18, 2026Thanks. The Data Team will review it. | |||||
| 8 | 65 contacts → | ||||
Strong evidence “We use solar thermal energy to deliver the lowest cost heat in sunny regions while strengthening energy security and reducing exposure to fuel price volatility.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 9 | 64 contacts → | ||||
Partial evidence “Boston Solar is the #1 residential solar company based in Massachusetts, with more than 6,500 installations in 14 years.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 10 | 63 contacts → | ||||
Indirect evidence “Warmboard, Inc.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 11 | 55 contacts → | ||||
Partial evidence “Amp x Titanium is one of the leading companies in the solar industry, helping team members develop into successful individuals.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 12 | 49 contacts → | ||||
Partial evidence “Solar Source specializes in residential & commercial solar electric, backup batteries, solar pool heating, solar hot water heating, and roofing.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 13 | 47 contacts → | ||||
Partial evidence “Lumos Solar was founded in 2006 with the mission of helping solar become a mainstream energy source.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 14 | 45 contacts → | ||||
Partial evidence “Our mission is to make the world a better place, one solar panel system at a time.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 15 | 44 contacts → | ||||
Partial evidence “At Big Dog Solar Energy we specialize in renewable energy, with a core competency in photovoltaics (Residential and Commercial Solar Energy).” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 16 | 43 contacts → | ||||
Partial evidence “At Sea Bright Solar, we help consumers save money and the planet with solar energy.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 17 | 40 contacts → | ||||
Indirect evidence “Yellowlite is committed to excellence in the design and Installation of our renewable energy system and to educating our customers on ways to reduce their consumption and use…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 18 | 38 contacts → | ||||
Indirect evidence “Established in 1991, Suntrek Industries, Inc.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 19 | 37 contacts → | ||||
Strong evidence “Magen eco-Energy US is the US subsidiary of Magen eco-Energy, which is behind the cutting-edge technology that has made us the #1 global solar pool heating manufacturer in the…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 20 | 36 contacts → | ||||
Partial evidence “Xando stands above other solar energy providers by blending the personalized touch of your local installer, with the global knowledge of the solar and energy market.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 21 | 34 contacts → | ||||
Partial evidence “Leading Manufacturer of Commercial Energy Efficient Heat Pump Water Heating Systems.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 22 | 32 contacts → | ||||
Strong evidence “Solar Depot is a wholesale distributor and systems integrator of solar electric and solar thermal systems.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 23 | 31 contacts → | ||||
Partial evidence “Kamtech Solar Solutions is a New York City-based alternative energy company committed to designing and installing the very best in solar energy systems.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 24 | 31 contacts → | ||||
Partial evidence “Aztec Solar Inc is a full-service solar energy provider, including Solar Water Heating, Solar Pool, Solar AC and Solar Photovoltaic systems for both residential sites and…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 25 | 31 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 18, 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: solar thermal collectors manufacturers. 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 thermal collectors manufacturers.
- Partial evidence
- Its own public description names part of solar thermal collectors manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name solar thermal collectors manufacturers. 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 305 solar thermal collectors manufacturers based in the United States
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Solar thermal collectors manufacturers based in the United States at a glance
As of Sep 18, 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 305 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 thermal collectors 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 thermal collectors 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 thermal collectors 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 thermal collectors 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, 856 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 thermal collectors 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 thermal collectors manufacturers are there based in the United States?
RevenueBase identified 305 solar thermal collectors 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?
Solyndra, headquartered in Fremont, tops this list with the largest team on record.
Which city has the most solar thermal collectors manufacturers?
San Diego leads with 9 headquartered companies, followed by San Jose (6) and New York (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 856 verified decision-maker contacts tracked across these 305 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.
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