Company lists · Data refreshed September 2026

Top 25 Renewable energy system suppliers worldwide

Name: Renewable energy system suppliers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 30,958 companies tracked

RevenueBase identified 30,958 renewable energy system suppliers worldwide as of September 2026 and tracks 641,475 professional contacts across them, including 179,067 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers renewable energy system suppliers 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 renewable energy system suppliers 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

30,958Companies

641,475Contacts tracked

179,067Verified emails

0Mobile numbers

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The 25 largest renewable energy system suppliers worldwide

Ranked by team size

Top 25 of 30,958 renewable energy system suppliers worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy system suppliers: 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	Siemens Energy	Partial evidence	Munich, GermanyHQ checked Sep 17, 2026	10001+	46,587 contacts →
	Partial evidence “Siemens Energy is one of the world’s leading energy technology companies.” Source: RevenueBase Database · checked Sep 17, 2026
2	Vestas	Partial evidence	Aarhus, DenmarkHQ checked Sep 17, 2026	10001+	27,085 contacts →
	Partial evidence “Vestas is the energy industry’s global partner on sustainable energy solutions.” Source: RevenueBase Database · checked Sep 17, 2026
3	Siemens Gamesa	Strong evidence	Zamudio, SpainHQ checked Sep 17, 2026	10001+	18,693 contacts →
	Strong evidence “Siemens Gamesa is a global technology leader in the renewable energy industry - specifically in the development, manufacturing, installation and maintenance of wind turbines.” Source: RevenueBase Database · checked Sep 17, 2026
4	RWE	Partial evidence	Essen, GermanyHQ checked Sep 17, 2026	10001+	11,181 contacts →
	Partial evidence “RWE is leading the way to a modern energy world.” Source: RevenueBase Database · checked Sep 17, 2026
5	Sunrun	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	10001+	7,974 contacts →
	Partial evidence “Life runs on clean energy.” Source: RevenueBase Database · checked Sep 17, 2026
6	Ørsted	Strong evidence	Fredericia, United StatesHQ checked Sep 17, 2026	5,001-10,000	7,538 contacts →
	Strong evidence “Ørsted is the global leader in offshore wind power and is one of the largest renewable energy companies in the world.” Source: RevenueBase Database · checked Sep 17, 2026
7	Suzlon Group	Partial evidence	Pune, IndiaHQ checked Sep 17, 2026	5,001-10,000	7,141 contacts →
	Partial evidence “Suzlon is a global wind-first, full-stack clean energy solutions conglomerate with businesses spanning RE Technology (Wind, Solar, Storage), RE Development Company, RE Asset…” Source: RevenueBase Database · checked Sep 17, 2026
8	EDP	Indirect evidence	Lisbon, PortugalHQ checked Sep 17, 2026	10001+	6,435 contacts →
	Indirect evidence “Our story began 50 years ago.” Source: RevenueBase Database · checked Sep 17, 2026
9	Alfanar	Strong evidence	Riyadh, Saudi ArabiaHQ checked Sep 17, 2026	10001+	6,383 contacts →
	Strong evidence “alfanar builds efficient energy systems & solutions of the present and sets up infrastructures for a brighter future.” Source: RevenueBase Database · checked Sep 17, 2026
10	Enel Green Power	Strong evidence	Roma, ItalyHQ checked Sep 17, 2026	5,001-10,000	5,251 contacts →
	Strong evidence “We are the Enel Group company dedicated to the development and management of renewable energy generation worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
11	RENEW	Partial evidence	Gurugram, IndiaHQ checked Sep 17, 2026	1,001-5,000	4,340 contacts →
	Partial evidence “ReNew is a leading decarbonisation solutions provider and the first Indian clean energy company to list on Nasdaq (Nasdaq: RNW).” Source: RevenueBase Database · checked Sep 17, 2026
12	Octopus Energy	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	3,989 contacts →
	Strong evidence “We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.” Source: RevenueBase Database · checked Sep 17, 2026
13	KENTZ	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 17, 2026	10001+	3,987 contacts →
	Indirect evidence “Following the acquisition of SNC-Lavalin's oil and gas division, Kentz has become a part of Kent.” Source: RevenueBase Database · checked Sep 17, 2026
14	RES	Strong evidence	Kings Langley, United KingdomHQ checked Sep 17, 2026	1,001-5,000	3,721 contacts →
	Strong evidence “RES is the world’s largest independent renewable energy company, working across 24 countries and active in wind, solar, energy storage, green hydrogen, transmission, and…” Source: RevenueBase Database · checked Sep 17, 2026
15	Luminous Power Technologies P LTD	Indirect evidence	Gurgaon, IndiaHQ checked Sep 17, 2026	5,001-10,000	3,713 contacts →
	Indirect evidence “Powering Progress, Lighting Lives!” Source: RevenueBase Database · checked Sep 17, 2026
16	ENPAL	Partial evidence	Berlin, GermanyHQ checked Sep 17, 2026	5,001-10,000	3,242 contacts →
	Partial evidence “Enpal is Europe's leading new energy company.” Source: RevenueBase Database · checked Sep 17, 2026
17	Enphase Energy	Strong evidence	Fremont, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,130 contacts →
	Strong 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
18	Solaredge Technologies	Partial evidence	Herzliya, IsraelHQ checked Sep 17, 2026	1,001-5,000	3,091 contacts →
	Partial evidence “SolarEdge is a global leader in smart energy technology.” Source: RevenueBase Database · checked Sep 17, 2026
19	FTI	Strong evidence	Menasha, WI, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,741 contacts →
	Strong evidence “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Source: RevenueBase Database · checked Sep 17, 2026
20	Sunpower Corporation	Partial evidence	Richmond, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,675 contacts →
	Partial evidence “We believe clean energy and backup storage should be accessible to everybody.” Source: RevenueBase Database · checked Sep 17, 2026
21	Tata Power Renewable Energy Limited	Strong evidence	Mumbai, IndiaHQ checked Sep 17, 2026	501-1,000	2,660 contacts →
	Strong 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
22	Greenko Group	Strong evidence	Hyderabad, IndiaHQ checked Sep 17, 2026	1,001-5,000	2,578 contacts →
	Strong evidence “Greenko, is one of the World’s leading Energy Transition and Decarbonization solutions company, with an installed Renewable Energy capacity of ~7.5 GW across Wind, Solar and Hydro…” Source: RevenueBase Database · checked Sep 17, 2026
23	Ingeteam	Indirect evidence	Zamudio, SpainHQ checked Sep 17, 2026	1,001-5,000	2,574 contacts →
	Indirect evidence “Ingeteam is made up of a team of more than 3,500 people in 15 countries, with more than 80 years of experience providing creative solutions to specific problems to electrify…” Source: RevenueBase Database · checked Sep 17, 2026
24	Goldwind	Strong evidence	Daxing District, ChinaHQ checked Sep 17, 2026	10001+	2,392 contacts →
	Strong evidence “As a reliable global strategic partner in clean energy, Goldwind is committed Driving a Renewable Future and centering its business on Ecology-Oriented Development+ENERGY industry…” Source: RevenueBase Database · checked Sep 17, 2026
25	Waaree Group	Strong evidence	Mumbai, IndiaHQ checked Sep 17, 2026	5,001-10,000	2,264 contacts →
	Strong evidence “Founded in 1990, Waaree Energies Limited is India’s leading renewable energy company, driving the global transition to clean power.” 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: renewable energy system suppliers. 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 renewable energy system suppliers.
Partial evidence: Its own public description names part of renewable energy system suppliers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy system suppliers. 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 30,958 renewable energy system suppliers worldwide

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Renewable energy system suppliers worldwide at a glance

As of Sep 17, 2026

27.9%Verified-email coverage

20.7Average contacts per company

11-50Median size (employees)

0.8%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

13,693

11-50

11,607

51-200

3,736

201-500

983

501-1,000

348

1,001-5,000

277

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 renewable energy system suppliers, 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: 59 countries, largest first: the United States, India, Brazil, the United Kingdom, Germany, Italy, Spain, France, Australia, the Netherlands and 49 more. Country and city lists for renewable energy system suppliers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “renewable energy system suppliers”. 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 renewable energy system suppliers), 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 renewable energy system suppliers, 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, 179,067 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.

Renewable energy system suppliers by location

126 lists · largest first

Every Renewable energy system suppliers 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 renewable energy system suppliers, 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 renewable energy system suppliers are there worldwide?

RevenueBase identified 30,958 renewable energy system suppliers 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?

Siemens Energy, headquartered in Munich, tops this list with the largest team on record.

Which country has the most renewable energy system suppliers?

The United States leads with 3,707 companies, followed by India (3,136) and Brazil (2,655). Every renewable energy system suppliers list by country and city is linked on this page.

Which city has the most renewable energy system suppliers?

London leads with 254 headquartered companies, followed by Lahore (240) and Madrid (200).

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 179,067 verified decision-maker contacts tracked across these 30,958 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.