Company lists · Data refreshed September 2026

Top 25 Private equity climate investors based in the United States

Name: Private equity climate investors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 987 companies tracked

RevenueBase identified 987 company matches for private equity climate investors associated with the United States as of September 2026 and tracks 20,253 professional contacts across them, including 8,297 with verified work emails and 6,691 with mobile numbers. New York is the largest hub.

This list covers company matches for private equity climate 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 September 5, 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 Sep 5, 2026 How this list was built

987Companies

20,253Contacts tracked

8,297Verified emails

6,691Mobile numbers

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The 25 largest private equity climate investors based in the United States

Ranked by team size

Top 25 of 987 company matches for private equity climate investors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 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	Carrier	Exact match	Palm Beach Gardens, FL, United StatesHQ recorded Sep 5, 2026	10001+	7,665 contacts →
	Exact match “Carrier is a global leader in intelligent climate and energy solutions, pioneering sustainable innovations in climate technologies.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2	General Atlantic	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	501-1,000	820 contacts →
	Exact match “General Atlantic is a leading global investor with more than four and a half decades of experience providing capital and strategic support to over 830 companies throughout its…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3	W Capital Partners	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	n/a	337 contacts →
	Exact match “W Capital Partners is a private equity firm that provides secondary liquidity to shareholders in private businesses and growth capital for those companies.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
4	3degrees Group, INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 5, 2026	201-500	324 contacts →
	Exact match “3Degrees is a leading global climate solutions provider, pioneer of environmental markets, and Certified B Corporation.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5	Anew Climate	Exact match	Houston, TX, United StatesHQ recorded Sep 5, 2026	201-500	200 contacts →
	Exact match “Anew Climate is a global leader of diverse climate solutions, bringing innovative products and services to the public and private sectors to help reduce or offset their carbon…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6	EIG	Exact match	Washington, DC, United StatesHQ recorded Sep 5, 2026	51-200	199 contacts →
	Exact match “EIG is a leading institutional investor in the global energy and infrastructure sectors with $27.9 billion assets under management as of June 30, 2026.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
7	HASI	Exact match	Annapolis, MD, United StatesHQ recorded Sep 5, 2026	51-200	196 contacts →
	Exact match “HASI invests in sustainable infrastructure assets advancing the energy transition.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8	Khosla Ventures	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 5, 2026	51-200	193 contacts →
	Exact match “Khosla Ventures invests in companies that are bold, early and impactful.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9	Stronghold Investment Management	Exact match	Dallas, TX, United StatesHQ recorded Sep 5, 2026	51-200	180 contacts →
	Exact match “Stronghold Investment Management is an investment manager, focused on energy and natural resources, fortified by an experienced operating and technical team.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
10	Quantum Capital Group	Exact match	Houston, TX, United StatesHQ recorded Sep 5, 2026	51-200	173 contacts →
	Exact match “Founded in 1998, Quantum Capital Group is a leading provider of private equity, credit, and venture capital to the global energy and energy transition industry, having managed…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11	Breakthrough Energy	Exact match	Kirkland, United StatesHQ recorded Sep 5, 2026	51-200	159 contacts →
	Exact match “Breakthrough Energy backs companies developing the next generation of clean energy solutions.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12	Greenbacker	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	51-200	141 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 · Sep 5, 2026 · View company records in RevenueBase
13	Levine Leichtman Capital Partners, LLC	Exact match	Beverly Hills, CA, United StatesHQ recorded Sep 5, 2026	51-200	124 contacts →
	Exact match “LLCP is a middle-market private equity firm with a 42-year track record of investing across various targeted sectors, including Business Services, Franchising & Multi-unit…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14	ECP Energy Capital Partners	Exact match	Summit, NJ, United StatesHQ recorded Sep 5, 2026	51-200	123 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 · Sep 5, 2026 · View company records in RevenueBase
15	ARA Partners	Exact match	Houston, TX, United StatesHQ recorded Sep 5, 2026	51-200	119 contacts →
	Exact match “Founded in 2017, Ara Partners is a global private markets firm focused on decarbonizing the industrial economy.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
16	ONE Rock Capital Partners, LLC	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	51-200	112 contacts →
	Exact match “One Rock Capital Partners is a New York-based private equity firm with ~$10.0 billion of cumulative capital commitments focused on investing in companies across a range of…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
17	Cleancapital	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	51-200	106 contacts →
	Exact match “Speed and efficiency are the cornerstones of climate finance.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18	AXA Investment Managers	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	10001+	105 contacts →
	Exact match “Equity and Fixed Income Products Sustainable investments (ESG) Alternative assets (e.g.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19	Parnassus Investments	Exact match	San Francisco, CA, United StatesHQ recorded Sep 5, 2026	51-200	93 contacts →
	Exact match “Since 1984, Parnassus Investments has invested differently.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20	Acon Investments, L.L.C	Exact match	Washington, DC, United StatesHQ recorded Sep 5, 2026	51-200	91 contacts →
	Exact match “ACON Investments is a private equity investment firm led by a cohesive team that has been investing together for over 25 years.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21	SEAF	Exact match	Washington, DC, United StatesHQ recorded Sep 5, 2026	51-200	85 contacts →
	Exact match “Small Enterprise Assistance Funds (SEAF) is a global impact private equity manager focused on providing growth capital and operational support to small and medium-sized…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
22	OIC	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	11-50	80 contacts →
	Exact match “WE ARE CAPITAL SOLUTIONS PROVIDERS We’re building a diversified portfolio of investments, backed by hard asset collateral, supporting innovation in infrastructure.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23	First Reserve	Exact match	Stamford, CT, United StatesHQ recorded Sep 5, 2026	51-200	79 contacts →
	Exact match “Founded in 1983, First Reserve is a leading global private equity firm investing across energy, utility, and industrial markets.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24	Calvert Research And Management	Exact match	Washington, DC, United StatesHQ recorded Sep 5, 2026	51-200	79 contacts →
	Exact match “Calvert Research and Management is a leader in Responsible Investing.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25	Enduring Planet	Exact match	Washington, DC, United StatesHQ recorded Sep 5, 2026	51-200	79 contacts →
	Exact match “Working capital and fractional financial services for Climate startups and SMBs.” Recorded in the RevenueBase company graph · Sep 5, 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 “private equity climate 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 987 private equity climate investors based in the United States

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Private equity climate investors based in the United States at a glance

As of Sep 5, 2026

41.0%Verified-email coverage

33.0%Mobile-number coverage

20.5Average contacts per company

1-10Median size (employees)

17.3%Largest-city concentration · New York

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

645

11-50

278

51-200

201-500

501-1,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

7,6820–30

53131–60

261–90

090–180

82180+

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 “private equity climate 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 8,297 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 September 5, 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.

Private equity climate 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 “private equity climate investors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many private equity climate investors are there based in the United States?

RevenueBase identified 987 company matches for private equity climate investors associated with the United States as of September 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?

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

Which city has the most private equity climate investors?

New York leads with 171 company records, followed by San Francisco (62) and Houston (52).

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 8,297 professional contacts with verified work emails tracked across these 987 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 September 5, 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 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.