Company lists · Data refreshed September 2026

Top 25 Renewable energy advocacy organizations based in the United States

Name: Renewable energy advocacy organizations based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 941 companies tracked

RevenueBase identified 941 renewable energy advocacy organizations headquartered in the United States as of September 2026 and tracks 14,338 professional contacts across them, including 4,447 with verified work emails. Washington is the largest hub.

This list covers renewable energy advocacy organizations headquartered in the United States, 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.

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

941Companies

14,338Contacts tracked

4,447Verified emails

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The 25 largest renewable energy advocacy organizations based in the United States

Ranked by team size

Top 25 of 941 renewable energy advocacy organizations based in the United States, 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	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
2	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
3	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
4	Solar Energy Industries Association	Partial evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	51-200	457 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
5	Meraki Solar	Indirect evidence	Pensacola, FL, United StatesHQ checked Sep 17, 2026	1,001-5,000	275 contacts →
	Indirect evidence “People.” Source: RevenueBase Database · checked Sep 17, 2026
6	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
7	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
8	American Clean Power Association ACP	Partial evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	51-200	208 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
9	Center For Energy And Environment	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	51-200	203 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
10	Ever-Green Energy	Strong evidence	Saint Paul, MN, United StatesHQ checked Sep 17, 2026	201-500	191 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
11	Clean AIR Task Force	Strong evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	51-200	167 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
12	Infinity Solar USA	Indirect evidence	Vancouver, WA, United StatesHQ checked Sep 17, 2026	51-200	158 contacts →
	Indirect evidence “Preserve, protect, and improve the environment in the US with Solar.” Source: RevenueBase Database · checked Sep 17, 2026
13	U.S. Energy Foundation	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	51-200	150 contacts →
	Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 17, 2026
14	Solgen Power	Indirect evidence	Pasco, WA, United StatesHQ checked Sep 17, 2026	1,001-5,000	146 contacts →
	Indirect evidence “Solgen Power provides an excellent Solar experience for homeowners in Washington State, Oregon, Idaho, Ohio, Kentucky, Indiana, Arizona, and Texas.” Source: RevenueBase Database · checked Sep 17, 2026
15	The Energy Coalition	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 17, 2026	51-200	128 contacts →
	Partial evidence “The Energy Coalition (TEC) is a California-based nonprofit 501(c)3 organization.” Source: RevenueBase Database · checked Sep 17, 2026
16	Solar United Neighbors	Partial evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	51-200	126 contacts →
	Partial evidence “Solar United Neighbors (SUN) is a national nonprofit organization helping people go solar, join together, and fight for their energy rights.” Source: RevenueBase Database · checked Sep 17, 2026
17	Rewiring America	Indirect evidence	United StatesHQ checked Sep 17, 2026	51-200	120 contacts →
	Indirect evidence “Rewiring America puts American households at the center of an affordable, resilient, all-electric future.” Source: RevenueBase Database · checked Sep 17, 2026
18	Mosaic Joinmosaic.com	Partial evidence	Oakland, CA, United StatesHQ checked Sep 17, 2026	201-500	113 contacts →
	Partial evidence “100% clean energy across America - that’s our vision.” Source: RevenueBase Database · checked Sep 17, 2026
19	Advanced Energy United	Partial evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	51-200	101 contacts →
	Partial evidence “Advanced Energy United is a national industry association representing businesses that provide the full range of advanced energy and transportation solutions.” Source: RevenueBase Database · checked Sep 17, 2026
20	Smart Electric Power Alliance	Partial evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	51-200	95 contacts →
	Partial evidence “The Smart Electric Power Alliance (SEPA) is a 501(c)(3) nonprofit accelerating the transition to a clean, affordable, and resilient energy system for all.” Source: RevenueBase Database · checked Sep 17, 2026
21	Environment America	Indirect evidence	Denver, CO, United StatesHQ checked Sep 17, 2026	51-200	93 contacts →
	Indirect evidence “Every day, we see more heartbreaking evidence of the damage being done to our planet: climate change, plastic pollution, wildlife disappearing forever.” Source: RevenueBase Database · checked Sep 17, 2026
22	Puresky Energy	Strong evidence	Denver, CO, United StatesHQ checked Sep 17, 2026	51-200	86 contacts →
	Strong evidence “We lead the charge in providing renewable energy solutions that invigorate progress, enhance lives, and leave a legacy of environmental stewardship.” Source: RevenueBase Database · checked Sep 17, 2026
23	Western Resource Advocates	Partial evidence	Boulder, CO, United StatesHQ checked Sep 17, 2026	51-200	82 contacts →
	Partial evidence “Western Resource Advocates fights climate change and its impacts to sustain the environment, economy, and people of the West.” Source: RevenueBase Database · checked Sep 17, 2026
24	Mpower Energy	Strong evidence	Brooklyn, United StatesHQ checked Sep 17, 2026	201-500	80 contacts →
	Strong evidence “Mpower Energy is a boutique renewable energy provider that has been passionate about providing reliable energy to communities in the Northeast region since 2009.” Source: RevenueBase Database · checked Sep 17, 2026
25	Suncommon	Strong evidence	Waterbury, VT, United StatesHQ checked Sep 17, 2026	51-200	75 contacts →
	Strong evidence “SunCommon believes that everyone has the right to a healthy environment and brighter future – and renewable energy is where it starts.” 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 advocacy organizations. 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 advocacy organizations.
Partial evidence: Its own public description names part of renewable energy advocacy organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy advocacy organizations. 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 941 renewable energy advocacy organizations based in the United States

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Renewable energy advocacy organizations based in the United States at a glance

As of Sep 17, 2026

31.0%Verified-email coverage

15.2Average contacts per company

1-10Median size (employees)

4.5%Largest-city concentration · Washington

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

547

11-50

270

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 941 companies.

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.
What qualifies: Companies headquartered in the United States 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. Companies headquartered outside United States are excluded even when they keep an office there.
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, 4,447 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 metro

Renewable energy advocacy organizations in Washington42

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 based in the United States?

RevenueBase identified 941 renewable energy advocacy organizations headquartered in the United States 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?

Powur, PBC, headquartered in San Diego, tops this list with the largest team on record.

Which city has the most renewable energy advocacy organizations?

Washington leads with 42 headquartered companies, followed by New York (24) and Austin (18).

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 4,447 verified decision-maker contacts tracked across these 941 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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Renewable energy advocacy organizations by geography

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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.