Company lists · Data refreshed September 2026

Top 25 Rooftop solar system designers worldwide

Name: Rooftop solar system designers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 24,145 companies tracked

RevenueBase identified 24,145 rooftop solar system designers worldwide as of September 2026 and tracks 232,362 professional contacts across them, including 55,836 with verified work emails and 0 with mobile numbers. The United States is the largest market and Lahore the largest hub.

This list covers rooftop solar system designers 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 rooftop solar system designers 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

24,145Companies

232,362Contacts tracked

55,836Verified emails

0Mobile numbers

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The 25 largest rooftop solar system designers worldwide

Ranked by team size

Top 25 of 24,145 rooftop solar system designers worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to rooftop solar system designers: 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	Sunrun	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	10001+	7,974 contacts →
	Indirect evidence “Life runs on clean energy.” Source: RevenueBase Database · checked Sep 17, 2026
2	Sunpower Corporation	Indirect evidence	Richmond, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,675 contacts →
	Indirect evidence “We believe clean energy and backup storage should be accessible to everybody.” Source: RevenueBase Database · checked Sep 17, 2026
3	Tata Power Renewable Energy Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 17, 2026	501-1,000	2,660 contacts →
	Indirect evidence “Tata Power Renewable Energy Limited (TPREL) is one of India’s leading renewable energy companies, driving the transition towards a cleaner, more resilient and sustainable energy…” Source: RevenueBase Database · checked Sep 17, 2026
4	MOSS	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,214 contacts →
	Indirect evidence “Moss is a national, privately-held construction firm providing innovative solutions resulting in award-winning projects.” Source: RevenueBase Database · checked Sep 17, 2026
5	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
6	Freedom Forever	Partial evidence	Temecula, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,830 contacts →
	Partial evidence “Freedom Forever is a residential solar installation company that partners with solar sales companies in the industry.” Source: RevenueBase Database · checked Sep 17, 2026
7	Solarsquare	Partial evidence	Mumbai, IndiaHQ checked Sep 17, 2026	1,001-5,000	1,812 contacts →
	Partial evidence “At SolarSquare, we make going solar simple, reliable, and worry-free.” Source: RevenueBase Database · checked Sep 17, 2026
8	Trinity Solar	Partial evidence	Wall Township, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,794 contacts →
	Partial evidence “Trinity Solar is one of the largest privately held residential solar companies in the nation.” Source: RevenueBase Database · checked Sep 17, 2026
9	SUN King	Partial evidence	Nairobi, KenyaHQ checked Sep 17, 2026	1,001-5,000	1,492 contacts →
	Partial evidence “Sun King designs, distributes, installs, and finances solar energy solutions for the 1.8 billion global consumers who cannot reliably access or afford traditional electrical grid…” Source: RevenueBase Database · checked Sep 17, 2026
10	Solv Energy	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,286 contacts →
	Partial evidence “SOLV Energy is a renewable energy solutions provider for utility solar, energy storage, and high voltage projects in North America.” Source: RevenueBase Database · checked Sep 17, 2026
11	Blue Raven Solar	Strong evidence	Orem, UT, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,168 contacts →
	Strong evidence “Blue Raven Solar, a SunPower Company, is a retailer of residential home solar systems.” Source: RevenueBase Database · checked Sep 17, 2026
12	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
13	Wanzek Construction, Inc., A Mastec Company	Indirect evidence	Fargo, ND, United StatesHQ checked Sep 17, 2026	1,001-5,000	933 contacts →
	Indirect evidence “Wanzek Construction, Inc, a MasTec Renewables company, is a leading general construction contractor and clean energy services company headquartered in Fargo, North Dakota.” Source: RevenueBase Database · checked Sep 17, 2026
14	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
15	SEL Construction Corporation	Indirect evidence	Loomis, CA, United StatesHQ checked Sep 17, 2026	n/a	722 contacts →
	Indirect evidence “Experienced commercial contractor specializing in renewable energy, electrical, and roofing projects for privately-owned buildings as well as state/local government buildings in…” Source: RevenueBase Database · checked Sep 17, 2026
16	LUMIO	Indirect evidence	Lehi, UT, United StatesHQ checked Sep 17, 2026	5,001-10,000	719 contacts →
	Indirect evidence “We’re on a mission to make power personal.” Source: RevenueBase Database · checked Sep 17, 2026
17	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
18	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
19	Serena	Partial evidence	São Paulo, BrazilHQ checked Sep 17, 2026	201-500	620 contacts →
	Partial evidence “Making the provision of solar and wind energy accessible to everyone - from large global companies seeking sustainable profitability, to families seeking guilt-free energy…” Source: RevenueBase Database · checked Sep 17, 2026
20	Nexamp	Partial evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	201-500	607 contacts →
	Partial 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 17, 2026
21	Greentech Renewables	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	595 contacts →
	Indirect evidence “As Greentech Renewables, we prioritize our commitment to providing customers with exceptional service and top-tier products from prominent renewable energy manufacturers.” Source: RevenueBase Database · checked Sep 17, 2026
22	Grupotec	Indirect evidence	Valencia, SpainHQ checked Sep 17, 2026	501-1,000	538 contacts →
	Indirect evidence “GRUPOTEC - Empresa multidisciplinar de ingeniería y arquitectura y líder en el sector de la energía fotovoltaica.” Source: RevenueBase Database · checked Sep 17, 2026
23	Posigen	Partial evidence	St. Rose, LA, United StatesHQ checked Sep 17, 2026	501-1,000	507 contacts →
	Partial evidence “PosiGen is the nation's leading residential solar and energy efficiency provider.” Source: RevenueBase Database · checked Sep 17, 2026
24	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
25	Windmar Home	Indirect evidence	San Juan, Puerto RicoHQ checked Sep 17, 2026	1,001-5,000	477 contacts →
	Indirect evidence “Since 2002, the WindMar Group has pioneered renewable energy development in Puerto Rico.” 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: rooftop solar system designers. 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 rooftop solar system designers.
Partial evidence: Its own public description names part of rooftop solar system designers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rooftop solar system designers. 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 24,145 rooftop solar system designers worldwide

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Rooftop solar system designers worldwide at a glance

As of Sep 17, 2026

24.0%Verified-email coverage

9.6Average contacts per company

11-50Median size (employees)

0.8%Largest-city concentration · Lahore

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11,718

11-50

9,241

51-200

2,336

201-500

467

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 rooftop solar system designers, 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: 49 countries, largest first: the United States, India, Brazil, the United Kingdom, Germany, Australia, France, Spain, Italy, the Netherlands and 39 more. Country and city lists for rooftop solar system designers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “rooftop solar system designers”. 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 rooftop solar system designers), 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 rooftop solar system designers, 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, 55,836 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.

Rooftop solar system designers by location

96 lists · largest first

Every Rooftop solar system designers 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 rooftop solar system designers, 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 rooftop solar system designers are there worldwide?

RevenueBase identified 24,145 rooftop solar system designers 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?

Sunrun, headquartered in San Francisco, tops this list with the largest team on record.

Which country has the most rooftop solar system designers?

The United States leads with 4,640 companies, followed by India (2,606) and Brazil (2,389). Every rooftop solar system designers list by country and city is linked on this page.

Which city has the most rooftop solar system designers?

Lahore leads with 200 headquartered companies, followed by Ahmedabad (138) and Sao Paulo (138).

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 55,836 verified decision-maker contacts tracked across these 24,145 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.