Company lists · Data refreshed November 2026

Top 25 Solar thermal installation contractors worldwide

Name: Solar thermal installation contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 22,533 companies tracked

RevenueBase identified 22,533 company matches for solar thermal installation contractors worldwide as of November 2026 and tracks 161,403 professional contacts across them, including 31,530 with verified work emails. The United States is the largest market and Lahore the largest hub.

This list covers company matches for solar thermal installation contractors worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for solar thermal installation contractors follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

22,533Companies

161,403Contacts tracked

31,530Verified emails

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The 25 largest solar thermal installation contractors worldwide

Ranked by team size

Top 25 of 22,533 company matches for solar thermal installation contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Solarsquare	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	2,307 contacts →
	Exact match “At SolarSquare, we make going solar simple, reliable, and worry-free.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Trinity Solar	Exact match	Wall Township, NJ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,854 contacts →
	Exact match “Trinity Solar is one of the largest privately held residential solar companies in the nation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Blue Raven Solar	Exact match	Orem, UT, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,120 contacts →
	Exact match “Blue Raven Solar, a SunPower Company, is a retailer of residential home solar systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	ION Solar	Exact match	Provo, UT, United StatesHQ recorded Nov 6, 2026	501-1,000	945 contacts →
	Exact match “Ion Solar is a premium, full-service solar provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Feenstra	Exact match	Lelystad, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	813 contacts →
	Exact match “Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Ilumisol Energia Solar	Exact match	Cascavel, BrazilHQ recorded Nov 6, 2026	n/a	698 contacts →
	Exact match “Na Ilumisol Energia Solar, acreditamos que sustentabilidade e economia andam juntas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Depcom Power, INC	Exact match	Scottsdale, AZ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	658 contacts →
	Exact match “DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Nexamp	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	201-500	626 contacts →
	Exact match “Nexamp is leading the transformation to the new energy economy with proven solutions for the deployment and operation of solar energy assets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Sunpower Philippines Manufacturing Limited	Exact match	3rd Street, PhilippinesHQ recorded Nov 6, 2026	201-500	560 contacts →
	Exact match “Go solar, reduce your energy bills and discover why SunPower is a world standard in solar solutions for homes, businesses and utilities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Freyr Energy Services PVT LTD	Exact match	Hyderabad, IndiaHQ recorded Nov 6, 2026	501-1,000	466 contacts →
	Exact match “Freyr Energy provides simplified solar solutions for homes & businesses, making clean energy accessible & affordable.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Titan Solar Power	Exact match	Santa Ana, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	464 contacts →
	Exact match “EnergyAid acquired Titan Solar Power's intellectual property (IP) in March of 2025 through bankruptcy court.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Freedom Solar Pros LLC	Exact match	Chandler, AZ, United StatesHQ recorded Nov 6, 2026	51-200	420 contacts →
	Exact match “The future of Solar Sales” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Energyscape Renewables	Exact match	Denver, United StatesHQ recorded Nov 6, 2026	501-1,000	401 contacts →
	Exact match “Established in 2019.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	REC Solar	Exact match	San Luis Obispo, CA, United StatesHQ recorded Nov 6, 2026	n/a	398 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	OUR World Energy	Exact match	Phoenix, AZ, United StatesHQ recorded Nov 6, 2026	201-500	393 contacts →
	Exact match “https://ourworldenergy.com/” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Goldbeck Solar Group	Exact match	Hirschberg An Der Bergstraße, GermanyHQ recorded Nov 6, 2026	501-1,000	387 contacts →
	Exact match “GOLDBECK SOLAR is an internationally leading company specializing in the turnkey construction of industrial, commercial, and large‑scale photovoltaic systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	ORB Energy	Exact match	Bangalore, IndiaHQ recorded Nov 6, 2026	201-500	387 contacts →
	Exact match “Orb Energy is a vertically integrated solar energy solutions provider - including manufacturing solar photovoltaic panels in Bengaluru and financing SME customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	V3 Electric, INC	Exact match	El Dorado Hills, CA, United StatesHQ recorded Nov 6, 2026	201-500	383 contacts →
	Exact match “V3 was founded as a response to the stagnation within the energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Supernova	Exact match	Irvine, CO, United StatesHQ recorded Nov 6, 2026	201-500	368 contacts →
	Exact match “Supernova embodies the spirit of innovation and dedication to a sustainable future, making it a shining example of what it means to be a leader in the renewable energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Clarkson Evans LTD	Exact match	Gloucester, United KingdomHQ recorded Nov 6, 2026	501-1,000	360 contacts →
	Exact match “With over 850 staff, we are one of the UK’s leading electrical contractors and solar PV installers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Wattmonk Technologies	Exact match	Delaware, United StatesHQ recorded Nov 6, 2026	201-500	350 contacts →
	Exact match “WattMonk is a leading force in the solar industry, committed to revolutionizing the way the world harnesses clean energy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Solar Energy World	Exact match	Laurel, MD, United StatesHQ recorded Nov 6, 2026	501-1,000	344 contacts →
	Exact match “With tens of thousands of customers, Solar Energy World is the fastest growing solar and battery system installation company in our region, serving Delaware, Florida, Maryland…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Semper Solaris	Exact match	El Cajon, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	343 contacts →
	Exact match “Ranked #1 in Solar + Battery Installation in America by "Solar Power World" Go Solar American Style!#1 Veteran Owned Solar Company in California Solar Panels.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Kosol Energie	Exact match	Ahmedabad, IndiaHQ recorded Nov 6, 2026	501-1,000	342 contacts →
	Exact match “At KOSOL Energie, a core team of experienced engineers and trained professionals collaborate seamlessly to generate innovative solutions aimed at replacing fossil fuels with…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Enrich Energy Pvt. LTD	Exact match	Pune, IndiaHQ recorded Nov 6, 2026	201-500	337 contacts →
	Exact match “Enrich Energy Pvt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “solar thermal installation contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 22,533 solar thermal installation contractors worldwide

See the full list, filter by size, metro and specialty, and access 31,530 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Solar thermal installation contractors worldwide at a glance

As of Nov 6, 2026

19.5%Verified-email coverage

7.2Average contacts per company

1-10Median size (employees)

0.6%Largest-city concentration · Lahore

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11,102

11-50

8,341

51-200

2,024

201-500

378

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for solar thermal installation contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “solar thermal installation contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 31,530 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Solar thermal installation contractors by location

72 lists · largest first

Every Solar thermal installation contractors 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “solar thermal installation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar thermal installation contractors are there worldwide?

RevenueBase identified 22,533 company matches for solar thermal installation contractors worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Solarsquare tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most solar thermal installation contractors?

The United States leads with 2,953 companies, followed by Brazil (1,774) and India (1,668). Every solar thermal installation contractors list by country and city is linked on this page.

Which city has the most solar thermal installation contractors?

Lahore leads with 142 company records, followed by Madrid (101) and Sao Paulo (99).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 31,530 professional contacts with verified work emails tracked across these 22,533 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.