Company lists · Data refreshed September 2026

Top 25 Renewable energy advocacy organizations worldwide

RevenueBase identified 2,758 renewable energy advocacy organizations worldwide as of September 2026 and tracks 37,593 professional contacts across them, including 10,284 with verified work emails and 0 with mobile numbers. The United States is the largest market and Washington the largest hub.

This list covers renewable energy advocacy organizations 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 advocacy organizations 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
2,758Companies
37,593Contacts tracked
10,284Verified emails
0Mobile numbers
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The 25 largest renewable energy advocacy organizations worldwide

Ranked by team size
Top 25 of 2,758 renewable energy advocacy organizations 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 advocacy organizations: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceRoma, ItalyHQ checked Sep 17, 20265,001-10,0005,251 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
2Partial evidenceSan Diego, United StatesHQ checked Sep 17, 2026n/a1,199 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
3Partial evidenceFreiburg, GermanyHQ checked Sep 17, 20261,001-5,000894 contacts →

Partial evidence

“The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany is the largest solar research institute in Europe.”

Source: RevenueBase Database · checked Sep 17, 2026
4Indirect evidencePrato, ItalyHQ checked Sep 17, 2026n/a766 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
5Partial evidenceOakland, CA, United StatesHQ checked Sep 17, 2026201-500731 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
6Partial evidenceUberlândia, BrazilHQ checked Sep 17, 2026n/a625 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
7Partial evidenceWildpoldsried, GermanyHQ checked Sep 17, 2026501-1,000514 contacts →

Partial evidence

“Clean, affordable energy for all is one of the greatest challenges of our time.”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceSt. Rose, LA, United StatesHQ checked Sep 17, 2026501-1,000507 contacts →

Partial evidence

“PosiGen is the nation's leading residential solar and energy efficiency provider.”

Source: RevenueBase Database · checked Sep 17, 2026
9Partial evidenceSão Paulo, BrazilHQ checked Sep 17, 2026501-1,000495 contacts →

Partial evidence

“Nossa energia vem do sol, do vento e da água.”

Source: RevenueBase Database · checked Sep 17, 2026
10Partial evidenceWashington, DC, United StatesHQ checked Sep 17, 202651-200457 contacts →

Partial evidence

“The Solar Energy Industries Association (SEIA®) is leading the transformation to a clean energy economy.”

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidenceBarcelona, SpainHQ checked Sep 17, 2026201-500345 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
12Indirect evidencePensacola, FL, United StatesHQ checked Sep 17, 20261,001-5,000275 contacts →

Indirect evidence

“People.”

Source: RevenueBase Database · checked Sep 17, 2026
13Strong evidencePortland, OR, United StatesHQ checked Sep 17, 202651-200254 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
14Indirect evidenceSeville, SpainHQ checked Sep 17, 2026201-500245 contacts →

Indirect evidence

“Climate change is one of the greatest threats to our planet.”

Source: RevenueBase Database · checked Sep 17, 2026
15Partial evidenceTampa, FL, United StatesHQ checked Sep 17, 2026201-500244 contacts →

Partial evidence

“We are creating a more sustainable and better earth through solar energy.”

Source: RevenueBase Database · checked Sep 17, 2026
16Partial evidenceMumbai, IndiaHQ checked Sep 17, 2026201-500223 contacts →

Partial evidence

“At Geon, we Bridge innovation and sustainability to turn Green Energy ON.”

Source: RevenueBase Database · checked Sep 17, 2026
17Strong evidenceMadrid, SpainHQ checked Sep 17, 2026201-500216 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
18Partial evidenceWashington, DC, United StatesHQ checked Sep 17, 202651-200208 contacts →

Partial evidence

“The American Clean Power Association (ACP) is the leading voice of today’s multi-tech clean energy industry, representing energy storage, wind, utility-scale solar, clean…”

Source: RevenueBase Database · checked Sep 17, 2026
19Partial evidencePetten, NetherlandsHQ checked Sep 17, 2026201-500204 contacts →

Partial evidence

“A transition to a sustainable energy system is needed.”

Source: RevenueBase Database · checked Sep 17, 2026
20Partial evidenceMinneapolis, MN, United StatesHQ checked Sep 17, 202651-200203 contacts →

Partial evidence

“CEE is a community-based clean energy nonprofit with special expertise in energy efficiency that stretches back 40 years.”

Source: RevenueBase Database · checked Sep 17, 2026
21Strong evidenceSaint Paul, MN, United StatesHQ checked Sep 17, 2026201-500191 contacts →

Strong evidence

“Ever-Green Energy is a recognized leader in energy conservation and the use of renewable energy.”

Source: RevenueBase Database · checked Sep 17, 2026
22Indirect evidenceGoiania, FranceHQ checked Sep 17, 2026501-1,000173 contacts →

Indirect evidence

“CRER is a company based out of France.”

Source: RevenueBase Database · checked Sep 17, 2026
23Strong evidenceBoston, MA, United StatesHQ checked Sep 17, 202651-200167 contacts →

Strong evidence

“CATF advocates for the change in technologies and policies needed to get to a zero-emissions, high-energy planet at an affordable cost.”

Source: RevenueBase Database · checked Sep 17, 2026
24Indirect evidenceVancouver, WA, United StatesHQ checked Sep 17, 202651-200158 contacts →

Indirect evidence

“Preserve, protect, and improve the environment in the US with Solar.”

Source: RevenueBase Database · checked Sep 17, 2026
25Strong evidenceBrisbane, AustraliaHQ checked Sep 17, 2026201-500154 contacts →

Strong evidence

“We are passionate about the environment and we actively advocate that renewables must form an important part of Australia’s sustainable future.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 2,758 renewable energy advocacy organizations worldwide

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Renewable energy advocacy organizations worldwide at a glance

As of Sep 17, 2026
27.4%Verified-email coverage
13.6Average contacts per company
1-10Median size (employees)
1.5%Largest-city concentration · Washington
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
1,572
11-50
854
51-200
246
201-500
55
501-1,000
13
1,001-5,000
7
5,001-10,000
2
10001+
4

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 advocacy organizations, 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
18 countries, largest first: the United States, India, Brazil, the United Kingdom, Germany, France, Spain, Australia, Italy, the Netherlands and 8 more. Country and city lists for renewable energy advocacy organizations are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “renewable energy advocacy organizations”. 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 advocacy organizations), 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 advocacy organizations, 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, 10,284 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 advocacy organizations by location

18 lists · largest first

Every Renewable energy advocacy organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 advocacy organizations, 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 advocacy organizations are there worldwide?

RevenueBase identified 2,758 renewable energy advocacy organizations 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 advocacy organizations?

The United States leads with 941 companies, followed by India (259) and Brazil (206). Every renewable energy advocacy organizations list by country and city is linked on this page.

Which city has the most renewable energy advocacy organizations?

Washington leads with 42 headquartered companies, followed by London (40) and Madrid (31).

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 10,284 verified decision-maker contacts tracked across these 2,758 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.