Company lists · Data refreshed September 2026

Top 25 Renewable energy nonprofits worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 3,763 companies tracked

RevenueBase identified 3,763 renewable energy nonprofits worldwide as of September 2026 and tracks 53,097 professional contacts across them, including 16,162 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 nonprofits 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 nonprofits 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

3,763Companies

53,097Contacts tracked

16,162Verified emails

0Mobile numbers

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The 25 largest renewable energy nonprofits worldwide

Ranked by team size

Top 25 of 3,763 renewable energy nonprofits 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 nonprofits: 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	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
2	Powur, PBC	Partial evidence	San Diego, United StatesHQ checked Sep 17, 2026	n/a	1,199 contacts →
	Partial evidence “The Powur Mission: Accelerate the adoption of clean energy worldwide We're empowering our community of homeowners and advisors to thrive in the global shift to sustainable energy.” Source: RevenueBase Database · checked Sep 17, 2026
3	Lightsource BP	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,114 contacts →
	Strong evidence “Lightsource bp is working to support a future powered by renewable, affordable and reliable energy that benefits our partners, people and planet.” Source: RevenueBase Database · checked Sep 17, 2026
4	Community Dreams Foundation	Partial evidence	Orlando, FL, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,009 contacts →
	Partial evidence “We are a purpose-driven organization focused on empowering communities through clean energy, technology innovation, and collaborative partnerships.” Source: RevenueBase Database · checked Sep 17, 2026
5	CTG Brasil	Partial evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	501-1,000	988 contacts →
	Partial evidence “Na CTG Brasil, trabalhamos por um único propósito: desenvolver o mundo com energia limpa em larga escala.” Source: RevenueBase Database · checked Sep 17, 2026
6	RMI	Strong evidence	Boulder, CA, United StatesHQ checked Sep 17, 2026	501-1,000	830 contacts →
	Strong evidence “Rocky Mountain Institute (RMI) is an independent, nonpartisan nonprofit founded in 1982 that transforms global energy systems through market-driven solutions to secure a…” Source: RevenueBase Database · checked Sep 17, 2026
7	NWG S.P.A	Indirect evidence	Prato, ItalyHQ checked Sep 17, 2026	n/a	766 contacts →
	Indirect evidence “Nata a Prato nel 2003 è oggi una delle più importanti realtà nel mercato della Green Economy.” Source: RevenueBase Database · checked Sep 17, 2026
8	Grid Alternatives	Partial evidence	Oakland, CA, United StatesHQ checked Sep 17, 2026	201-500	731 contacts →
	Partial evidence “GRID Alternatives is a national leader in bringing affordable solar power, clean mobility, and energy storage to underserved communities while creating pathways to life-changing…” Source: RevenueBase Database · checked Sep 17, 2026
9	Igreen Energy Oficial	Partial evidence	Uberlândia, BrazilHQ checked Sep 17, 2026	n/a	625 contacts →
	Partial evidence “Olá, somos a iGreen Energy, uma empresa Mineira da cidade de Uberlândia que nasceu com o propósito de conscientizar as pessoas e empresas da importância de um futuro melhor…” Source: RevenueBase Database · checked Sep 17, 2026
10	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
11	Apex Clean Energy	Partial evidence	Charlottesville, VA, United StatesHQ checked Sep 17, 2026	201-500	594 contacts →
	Partial evidence “Apex Clean Energy was founded with a singular focus: to accelerate the shift to clean energy.” Source: RevenueBase Database · checked Sep 17, 2026
12	Sonnen Gmbh	Partial evidence	Wildpoldsried, GermanyHQ checked Sep 17, 2026	501-1,000	514 contacts →
	Partial evidence “Clean, affordable energy for all is one of the greatest challenges of our time.” Source: RevenueBase Database · checked Sep 17, 2026
13	Elera Renováveis	Partial evidence	São Paulo, BrazilHQ checked Sep 17, 2026	501-1,000	495 contacts →
	Partial evidence “Nossa energia vem do sol, do vento e da água.” Source: RevenueBase Database · checked Sep 17, 2026
14	Energy Saving Trust	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	426 contacts →
	Partial evidence “Energy Saving Trust is an independent organisation dedicated to promoting energy efficiency, low carbon transport and sustainable energy use.” Source: RevenueBase Database · checked Sep 17, 2026
15	Dolomiti Energia	Indirect evidence	Rovereto, ItalyHQ checked Sep 17, 2026	1,001-5,000	369 contacts →
	Indirect evidence “Rinnovabili.” Source: RevenueBase Database · checked Sep 17, 2026
16	Holaluz	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	201-500	345 contacts →
	Partial evidence “Building the most impactful green energy community in Europe by unleashing the full potential of electrifying energy demand by scaling distributed Solar and Storage.” Source: RevenueBase Database · checked Sep 17, 2026
17	Ambipar Europe	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	10001+	335 contacts →
	Indirect evidence “At Ambipar, we are all caretakers of the planet!” Source: RevenueBase Database · checked Sep 17, 2026
18	Tenergie	Indirect evidence	Fuveau, FranceHQ checked Sep 17, 2026	201-500	264 contacts →
	Indirect evidence “Fondé en 2008, au cœur de la région PACA, Tenergie est un producteur indépendant d’énergies renouvelables : nos 500 centrales solaires et éoliennes ont produit plus de 250 GWh en…” Source: RevenueBase Database · checked Sep 17, 2026
19	Center For Sustainable Energy CSE	Strong evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	201-500	259 contacts →
	Strong evidence “Center for Sustainable Energy® (CSE) is a national nonprofit that accelerates adoption of clean transportation and distributed energy through effective and equitable program…” Source: RevenueBase Database · checked Sep 17, 2026
20	Energy Trust Of Oregon	Strong evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	51-200	254 contacts →
	Strong evidence “Energy Trust of Oregon is an independent nonprofit organization dedicated to helping utility customers benefit from saving energy and generating renewable power.” Source: RevenueBase Database · checked Sep 17, 2026
21	Quintas Energy	Indirect evidence	Seville, SpainHQ checked Sep 17, 2026	201-500	245 contacts →
	Indirect evidence “Climate change is one of the greatest threats to our planet.” Source: RevenueBase Database · checked Sep 17, 2026
22	Better Earth	Partial evidence	Tampa, FL, United StatesHQ checked Sep 17, 2026	201-500	244 contacts →
	Partial evidence “We are creating a more sustainable and better earth through solar energy.” Source: RevenueBase Database · checked Sep 17, 2026
23	Richard Heath & Associates, Inc. RHA	Partial evidence	Fresno, CA, United StatesHQ checked Sep 17, 2026	501-1,000	230 contacts →
	Partial evidence “Now part of Resource Innovations, RHA will expand its team to over 1,100 professionals, broadening expertise and offering clients additional solutions in energy storage and…” Source: RevenueBase Database · checked Sep 17, 2026
24	GEON	Partial evidence	Mumbai, IndiaHQ checked Sep 17, 2026	201-500	223 contacts →
	Partial evidence “At Geon, we Bridge innovation and sustainability to turn Green Energy ON.” Source: RevenueBase Database · checked Sep 17, 2026
25	RIC Energy Group	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	216 contacts →
	Strong evidence “At RIC Energy, we aspire to change the trajectory of renewable energy and energy efficiency.” 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 nonprofits. 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 nonprofits.
Partial evidence: Its own public description names part of renewable energy nonprofits, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy nonprofits. 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 3,763 renewable energy nonprofits worldwide

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Renewable energy nonprofits worldwide at a glance

As of Sep 17, 2026

30.4%Verified-email coverage

14.1Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

2,125

11-50

1,185

51-200

334

201-500

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 renewable energy nonprofits, 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: 19 countries, largest first: the United States, India, the United Kingdom, Brazil, Germany, France, Italy, Spain, Australia, the Netherlands and 9 more. Country and city lists for renewable energy nonprofits are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “renewable energy nonprofits”. 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 nonprofits), 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 nonprofits, 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, 16,162 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 nonprofits by location

22 lists · largest first

Every Renewable energy nonprofits 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 nonprofits, 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 nonprofits are there worldwide?

RevenueBase identified 3,763 renewable energy nonprofits 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?

Enel Green Power, headquartered in Roma, tops this list with the largest team on record.

Which country has the most renewable energy nonprofits?

The United States leads with 1,321 companies, followed by India (360) and the United Kingdom (272). Every renewable energy nonprofits list by country and city is linked on this page.

Which city has the most renewable energy nonprofits?

London leads with 64 headquartered companies, followed by Washington (41) and New York (39).

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 16,162 verified decision-maker contacts tracked across these 3,763 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.