Company lists · Data refreshed October 2026

Top 25 Clean energy investors based in the United States

Name: Clean energy investors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 857 companies tracked

RevenueBase identified 857 company matches for clean energy investors associated with the United States as of October 2026 and tracks 15,074 professional contacts across them, including 5,479 with verified work emails. New York is the largest hub.

This list covers company matches for clean energy investors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 9, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 9, 2026 How this list was built

857Companies

15,074Contacts tracked

5,479Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest clean energy investors based in the United States

Ranked by team size

Top 25 of 857 company matches for clean energy investors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Powur, PBC	Exact match	San Diego, United StatesHQ recorded Oct 9, 2026	n/a	1,097 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	Palmetto	Exact match	Charlotte, NC, United StatesHQ recorded Oct 9, 2026	201-500	606 contacts →
	Exact match “Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Apex Clean Energy	Exact match	Charlottesville, VA, United StatesHQ recorded Oct 9, 2026	201-500	574 contacts →
	Exact match “Apex Clean Energy was founded with a singular focus: to accelerate the shift to clean energy.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	Atlas Renewable Energy	Exact match	Miami, FL, United StatesHQ recorded Oct 9, 2026	201-500	493 contacts →
	Exact match “Atlas Renewable Energy delivers clean energy at scale.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Enfinity Global	Exact match	Miami, FL, United StatesHQ recorded Oct 9, 2026	201-500	452 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Arevon	Exact match	Scottsdale, AZ, United StatesHQ recorded Oct 9, 2026	201-500	329 contacts →
	Exact match “Arevon is a U.S.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	CON Edison Development	Exact match	Valhalla, NY, United StatesHQ recorded Oct 9, 2026	201-500	307 contacts →
	Exact match “Who We Are Con Edison Development develops, owns and operates renewable and energy infrastructure projects.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	CON Edison Clean Energy Businesses	Exact match	Valhalla, NY, United StatesHQ recorded Oct 9, 2026	201-500	277 contacts →
	Exact match “Con Edison Clean Energy Businesses, Inc.(Con Edison CEB) is a leader in the renewable energy industry.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Baywa R.E. Americas	Exact match	Carlsbad, CA, United StatesHQ recorded Oct 9, 2026	201-500	244 contacts →
	Exact match “rethinkenergy BayWa r.e is a leading global renewable energy company committed to delivering best-in-class projects, services and solutions.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	BHE Renewables	Exact match	Des Moines, IA, United StatesHQ recorded Oct 9, 2026	501-1,000	231 contacts →
	Exact match “BHE Renewables delivers sustainable energy solutions for customers and communities by producing renewable energy for both the wholesale market and for customers under long-term…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Longroad Energy	Exact match	Boston, MA, United StatesHQ recorded Oct 9, 2026	51-200	227 contacts →
	Exact match “Founded in 2016, Longroad Energy is a U.S-based energy company focused on developing and operating wind, solar, storage, and data center projects throughout North America.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	HASI	Exact match	Annapolis, MD, United StatesHQ recorded Oct 9, 2026	51-200	226 contacts →
	Exact match “HASI invests in sustainable infrastructure assets advancing the energy transition.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Madison Energy Infrastructure	Exact match	New York, NY, United StatesHQ recorded Oct 9, 2026	51-200	166 contacts →
	Exact match “Madison Energy Infrastructure is on a mission to modernize energy for industry and communities where it matters most.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Breakthrough Energy	Exact match	Kirkland, United StatesHQ recorded Oct 9, 2026	51-200	148 contacts →
	Exact match “Breakthrough Energy backs companies developing the next generation of clean energy solutions.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	REV Renewables	Exact match	New York, United StatesHQ recorded Oct 9, 2026	51-200	144 contacts →
	Exact match “REV Renewables, an LS Power company, is an industry leader in the development, acquisition and operation of renewables and energy storage.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	NEW Energy Nexus	Exact match	Berkeley, CA, United StatesHQ recorded Oct 9, 2026	51-200	140 contacts →
	Exact match “New Energy Nexus (NEX) is the world's leading ecosystem of funds and accelerators supporting diverse clean energy entrepreneurs to thrive, from emerging tech through to clean…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	ECP Energy Capital Partners	Exact match	Summit, NJ, United StatesHQ recorded Oct 9, 2026	51-200	136 contacts →
	Exact match “ECP (Energy Capital Partners) is an investor in critical infrastructure focused on electrification, decarbonization, reliability and sustainability.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Greenbacker	Exact match	New York, NY, United StatesHQ recorded Oct 9, 2026	51-200	129 contacts →
	Exact match “As a multi-strategy investment manager and independent power producer, Greenbacker Renewable Energy Company (Greenbacker) is empowering a sustainable world by connecting…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Bluewave	Exact match	Boston, MA, United StatesHQ recorded Oct 9, 2026	51-200	129 contacts →
	Exact match “BlueWave is a mission-driven clean energy developer, owner, and operator building solar and energy storage solutions that strengthen the electric grid and deliver long-term grid…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Dimension Energy	Exact match	Atlanta, GA, United StatesHQ recorded Oct 9, 2026	51-200	128 contacts →
	Exact match “Dimension Energy is making clean energy work for everyone.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Cleancapital	Exact match	New York, NY, United StatesHQ recorded Oct 9, 2026	51-200	116 contacts →
	Exact match “Speed and efficiency are the cornerstones of climate finance.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Givepower	Exact match	Austin, TX, United StatesHQ recorded Oct 9, 2026	51-200	114 contacts →
	Exact match “GivePower’s mission is to electrify the world with clean energy, and provide greater health, economic and educational opportunities for developing regions that need them most.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Mosaic Joinmosaic.com	Exact match	Oakland, CA, United StatesHQ recorded Oct 9, 2026	201-500	104 contacts →
	Exact match “100% clean energy across America - that’s our vision.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	NEW Energy Equity	Exact match	Annapolis, MD, United StatesHQ recorded Oct 9, 2026	51-200	93 contacts →
	Exact match “Founded in 2013, New Energy Equity is an ALLETE company specializing in financing and developing solar power generation assets, providing clean electricity to commercial…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	C-Quest Capital	Exact match	Washington, DC, United StatesHQ recorded Oct 9, 2026	51-200	90 contacts →
	Exact match “C-Quest Capital is a social impact project developer & carbon finance business that works in the poorest communities around the world providing access to sustainable energy…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “clean energy investors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 857 clean energy investors based in the United States

See the full list, filter by size, metro and specialty, and access 5,479 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Clean energy investors based in the United States at a glance

As of Oct 9, 2026

36.3%Verified-email coverage

17.6Average contacts per company

1-10Median size (employees)

9.1%Largest-city concentration · New York

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

454

11-50

288

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 857 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “clean energy investors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 5,479 professional contacts with verified work emails across the full matched dataset. 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 October 9, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Clean energy investors by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “clean energy investors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clean energy investors are there based in the United States?

RevenueBase identified 857 company matches for clean energy investors associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Powur, PBC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most clean energy investors?

New York leads with 78 company records, followed by Houston (39) and San Francisco (27).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,479 professional contacts with verified work emails tracked across these 857 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 9, 2026.

Ready to reach these companies? Verified emails and direct dials for all 857 clean energy investors based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Clean energy investors by geography

Browse the directory

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 SmartSearch, 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.