Company lists · Data refreshed September 2026

Top 25 Industrial solar thermal companies worldwide

Name: Industrial solar thermal companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 13,529 companies tracked

RevenueBase identified 13,529 industrial solar thermal companies worldwide as of September 2026 and tracks 115,401 professional contacts across them, including 24,227 with verified work emails and 0 with mobile numbers. Brazil is the largest market and Lahore the largest hub.

This list covers industrial solar thermal companies worldwide, 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 17, 2026. Country and city lists for industrial solar thermal companies follow the table.

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 17, 2026 86% judged on-target in blind review

13,529Companies

115,401Contacts tracked

24,227Verified emails

0Mobile numbers

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The 25 largest industrial solar thermal companies worldwide

Ranked by team size

Top 25 of 13,529 industrial solar thermal companies worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial solar thermal 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	Enphase Energy	Partial evidence	Fremont, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,130 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 17, 2026
2	Premier Energies Limited	Partial evidence	Secunderabad, IndiaHQ checked Sep 17, 2026	501-1,000	1,854 contacts →
	Partial evidence “INDIA'S FIRST LEED GOLD-RATED SOLAR MANUFACTURING FACILITY- The year was 1995, when Shri Surendarpal Singh Saluja established Premier Energies with the goal to harness the sun’s…” Source: RevenueBase Database · checked Sep 17, 2026
3	EDF Solutions Solaires	Indirect evidence	Limonest, FranceHQ checked Sep 17, 2026	1,001-5,000	1,085 contacts →
	Indirect evidence “EDF solutions solaires est une filiale à 100% du groupe EDF et leader de l'autoconsommation solaire chez les particuliers depuis plus de 20 ans.” Source: RevenueBase Database · checked Sep 17, 2026
4	ION Solar	Partial evidence	Provo, UT, United StatesHQ checked Sep 17, 2026	501-1,000	912 contacts →
	Partial evidence “Ion Solar is a premium, full-service solar provider.” Source: RevenueBase Database · checked Sep 17, 2026
5	Feenstra	Indirect evidence	Lelystad, NetherlandsHQ checked Sep 17, 2026	1,001-5,000	781 contacts →
	Indirect evidence “Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.” Source: RevenueBase Database · checked Sep 17, 2026
6	Ilumisol Energia Solar	Partial evidence	Cascavel, BrazilHQ checked Sep 17, 2026	n/a	709 contacts →
	Partial evidence “Na Ilumisol Energia Solar, acreditamos que sustentabilidade e economia andam juntas.” Source: RevenueBase Database · checked Sep 17, 2026
7	Grenergy	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	501-1,000	699 contacts →
	Indirect evidence “The on-demand energy producer empowering ever-changing lives Grenergy is a Spanish multinational clean energy producer.” Source: RevenueBase Database · checked Sep 17, 2026
8	Depcom Power, INC	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 17, 2026	1,001-5,000	624 contacts →
	Partial 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 17, 2026
9	Smart Güneş Teknolojileri	Partial evidence	Beykoz, TürkiyeHQ checked Sep 17, 2026	1,001-5,000	592 contacts →
	Partial evidence “Smart Solar Technologies We initiated to invest in the renewable energy sector in Europe in 2009 and we have become a preferred company in many countries thanks to our perspective…” Source: RevenueBase Database · checked Sep 17, 2026
10	Spirax Group	Indirect evidence	Cheltenham, FranceHQ checked Sep 17, 2026	10001+	560 contacts →
	Indirect evidence “Spirax Group is the new name for Spirax-Sarco Engineering.” Source: RevenueBase Database · checked Sep 17, 2026
11	Freedom Solar Pros LLC	Partial evidence	Chandler, AZ, United StatesHQ checked Sep 17, 2026	51-200	484 contacts →
	Partial evidence “The future of Solar Sales” Source: RevenueBase Database · checked Sep 17, 2026
12	REC Solar	Partial evidence	San Luis Obispo, CA, United StatesHQ checked Sep 17, 2026	n/a	471 contacts →
	Partial evidence “Founded in 1997, REC Solar has emerged as a leader in the solar industry, installing 800+ solar and storage solutions for commercial and public sector customers nationwide.” Source: RevenueBase Database · checked Sep 17, 2026
13	Photon Energy Group	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 17, 2026	201-500	407 contacts →
	Indirect evidence “Photon Energy Group is a group of companies with a shared mission: making clean energy, clean water and clean environments accessible to all.” Source: RevenueBase Database · checked Sep 17, 2026
14	Reon Energy Limited	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	402 contacts →
	Indirect evidence “Reon Energy is a leading Cleantech company deploying Intelligent Renewable Energy Microgrids across South Asia, GCC & African region.” Source: RevenueBase Database · checked Sep 17, 2026
15	Energyscape Renewables	Indirect evidence	Denver, United StatesHQ checked Sep 17, 2026	501-1,000	379 contacts →
	Indirect evidence “Established in 2019.” Source: RevenueBase Database · checked Sep 17, 2026
16	ORB Energy	Partial evidence	Bengaluru, IndiaHQ checked Sep 17, 2026	201-500	377 contacts →
	Partial evidence “Orb Energy is a vertically integrated solar energy solutions provider - including manufacturing solar photovoltaic panels in Bengaluru and financing SME customers.” Source: RevenueBase Database · checked Sep 17, 2026
17	MV Power	Indirect evidence	Itajubá, BrazilHQ checked Sep 17, 2026	501-1,000	377 contacts →
	Indirect evidence “A MV Power preza pela satisfação do cliente, buscando sempre a maior qualidade através de uma equipe apta e o uso dos melhores equipamentos.” Source: RevenueBase Database · checked Sep 17, 2026
18	Vaillant Group Türkiye	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 17, 2026	1,001-5,000	365 contacts →
	Indirect evidence “Vaillant Group, ısıtma ve havalandırma teknolojisi alanlarında uluslararası pazarlarda lider bir kuruluştur.” Source: RevenueBase Database · checked Sep 17, 2026
19	Goldbeck Solar Group	Strong evidence	Hirschberg An Der Bergstraße, GermanyHQ checked Sep 17, 2026	501-1,000	336 contacts →
	Strong evidence “GOLDBECK SOLAR is an internationally leading company specializing in the turnkey construction of industrial, commercial, and large‑scale photovoltaic systems.” Source: RevenueBase Database · checked Sep 17, 2026
20	Applied Energy Technologies Private Limited	Indirect evidence	Gurugram, IndiaHQ checked Sep 17, 2026	201-500	324 contacts →
	Indirect evidence “At Applied Energy Technologies, we are redefining the energy landscape with cost-efficient, distributed, and sustainable energy solutions.” Source: RevenueBase Database · checked Sep 17, 2026
21	Centrotherm International AG	Partial evidence	Blaubeuren, GermanyHQ checked Sep 17, 2026	501-1,000	318 contacts →
	Partial evidence “Thermische Produktionslösungen und Beschichtungstechnologien zählen zu den Kernkompetenzen von centrotherm.” Source: RevenueBase Database · checked Sep 17, 2026
22	INA Solar Insolation Energy LTD	Strong evidence	Jaipur, IndiaHQ checked Sep 17, 2026	501-1,000	311 contacts →
	Strong evidence “At INA Solar, we believe in a future where clean energy is not just an option but a way of life, empowering homes, businesses, industries and solar farms with high-quality…” Source: RevenueBase Database · checked Sep 17, 2026
23	Enerparc AG	Indirect evidence	Hamburg, GermanyHQ checked Sep 17, 2026	201-500	305 contacts →
	Indirect evidence “ENERPARC AG is an internationally oriented specialist for all business related to photovoltaics, whether it's in a technical or commercial role, pure consultation or…” Source: RevenueBase Database · checked Sep 17, 2026
24	Kosol Energie	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 17, 2026	501-1,000	301 contacts →
	Indirect evidence “At KOSOL Energie, a core team of experienced engineers and trained professionals collaborate seamlessly to generate innovative solutions aimed at replacing fossil fuels with…” Source: RevenueBase Database · checked Sep 17, 2026
25	Gransolar Group	Partial evidence	Alcobendas, SpainHQ checked Sep 17, 2026	1,001-5,000	295 contacts →
	Partial evidence “Gransolar is a group of vertically integrated companies specialized in photovoltaic solar energy.” Source: RevenueBase Database · checked Sep 17, 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: industrial solar thermal 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 industrial solar thermal companies.
Partial evidence: Its own public description names part of industrial solar thermal companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial solar thermal 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 13,529 industrial solar thermal companies worldwide

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Industrial solar thermal companies worldwide at a glance

As of Sep 17, 2026

21.0%Verified-email coverage

8.5Average contacts per company

11-50Median size (employees)

0.8%Largest-city concentration · Lahore

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

6,487

11-50

5,100

51-200

1,392

201-500

259

501-1,000

1,001-5,000

5,001-10,000

10001+

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 industrial solar thermal 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.
Coverage: 40 countries, largest first: Brazil, India, the United States, Germany, Italy, Spain, France, the United Kingdom, Türkiye, Australia and 30 more. Country and city lists for industrial solar thermal companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “industrial solar thermal 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 industrial solar thermal 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 industrial solar thermal companies, and records with no verified work email.
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, 24,227 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 17, 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.

Industrial solar thermal companies by location

50 lists · largest first

Every Industrial solar thermal companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 industrial solar thermal 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 industrial solar thermal companies are there worldwide?

RevenueBase identified 13,529 industrial solar thermal companies worldwide 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?

Enphase Energy, headquartered in Fremont, tops this list with the largest team on record.

Which country has the most industrial solar thermal companies?

Brazil leads with 1,612 companies, followed by India (1,498) and the United States (1,442). Every industrial solar thermal companies list by country and city is linked on this page.

Which city has the most industrial solar thermal companies?

Lahore leads with 105 headquartered companies, followed by Madrid (103) and Pune (102).

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 24,227 verified decision-maker contacts tracked across these 13,529 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 17, 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.