Company lists · Data refreshed October 2026

Top 25 Energy efficiency investment funds based in the United States

RevenueBase identified 177 company matches for energy efficiency investment funds associated with the United States as of October 2026 and tracks 2,031 professional contacts across them, including 614 with verified work emails. San Francisco is the largest hub.

This list covers company matches for energy efficiency investment funds 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 12, 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 12, 2026 How this list was built
177Companies
2,031Contacts tracked
614Verified emails
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The 25 largest energy efficiency investment funds based in the United States

Ranked by team size
Top 25 of 177 company matches for energy efficiency investment funds based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchOakland, CA, United StatesHQ recorded Oct 12, 202651-200195 contacts →

Exact match

“Renew Financial pioneered the residential Property Assessed Clean Energy (PACE) program, an innovative financing solution that helps homeowners invest in energy efficiency, water…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2Exact matchKirkland, United StatesHQ recorded Oct 12, 202651-200148 contacts →

Exact match

“Breakthrough Energy backs companies developing the next generation of clean energy solutions.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3Exact matchCranston, RI, United StatesHQ recorded Oct 12, 2026201-500147 contacts →

Exact match

“RISE is a pioneer in the delivery of turnkey energy-efficiency services for residential, commercial and industrial facilities.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4Exact matchPhoenix, AZ, United StatesHQ recorded Oct 12, 202651-200117 contacts →

Exact match

“Erus Energy helps building owners evaluate and finance investments in Solar Energy and other energy saving equipment.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5Exact matchOakland, CA, United StatesHQ recorded Oct 12, 2026201-500104 contacts →

Exact match

“100% clean energy across America - that’s our vision.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6Exact matchBirmingham, AL, United StatesHQ recorded Oct 12, 2026n/a70 contacts →

Exact match

“If your business is interested in cutting energy costs and securing little known incentives to help fund initial project costs, SEMCO can help you.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7Exact matchOrlando, FL, United StatesHQ recorded Oct 12, 202651-20066 contacts →

Exact match

“Dreamline AI closes the funding gap for the clean energy economy.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8Exact matchFort Lauderdale, FL, United StatesHQ recorded Oct 12, 202651-20056 contacts →

Exact match

“What Do We Do?”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9Exact matchOshkosh, WI, United StatesHQ recorded Oct 12, 2026201-50049 contacts →

Exact match

“ECM is one of the nation’s leading providers of energy efficiency retrofit technologies.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10Exact matchMontclair, CA, United StatesHQ recorded Oct 12, 2026201-50045 contacts →

Exact match

“HVAC, Plumbing, Insulation, Weatherization.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Oct 12, 202611-5034 contacts →

Exact match

“BluePath is a leading financier of sustainable infrastructure.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12Exact matchAllentown, PA, United StatesHQ recorded Oct 12, 202611-5032 contacts →

Exact match

“The National Energy Improvement Fund (neifund.org), is a Certified B-Corporation lender specializing in True Fixed Rate™ financing programs for energy and other improvements to…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13Exact matchBoston, MA, United StatesHQ recorded Oct 12, 2026n/a31 contacts →

Exact match

“Renew Energy Partners provides turnkey solutions for funding, installing, and managing energy efficiency and on-site clean energy projects.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14Exact matchLa Mirada, CA, United StatesHQ recorded Oct 12, 202611-5030 contacts →

Exact match

“American Power Solutions has been a leader in energy efficiency since We specialize in providing our clients with energy efficient solutions.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15Exact matchFort Pierce, FL, United StatesHQ recorded Oct 12, 202611-5025 contacts →

Exact match

“SELF’s mission is to rebuild and empower underserved communities by providing access to affordable and innovative financing for sustainable property improvements, with the primary…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16Exact matchSeattle, WA, United StatesHQ recorded Oct 12, 202611-5023 contacts →

Exact match

“Allumia customers get new equipment with zero upfront costs & immediate savings.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17Exact matchCharlotte, NC, United StatesHQ recorded Oct 12, 202611-5022 contacts →

Exact match

“ClearGen Holdings, headquartered in Charlotte, NC and backed by CBRE Investment Management, provides enabling capital for the energy transition.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Oct 12, 202611-5022 contacts →

Exact match

“NYCEEC (New York City Energy Efficiency Corporation) is a 501(c)(3) not-for-profit mission-driven lender that finances energy efficiency and clean energy projects through debt…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19Exact matchThomaston, CT, United StatesHQ recorded Oct 12, 202651-20020 contacts →

Exact match

“Energy Resources USA is a leading provider of energy efficient facility upgrades.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20Exact matchRockville, MD, United StatesHQ recorded Oct 12, 202611-5018 contacts →

Exact match

“We are dedicated to partnering with lenders and investors to create affordable financing options in energy efficiency, renewable energy, and climate resilient solutions for…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21Exact matchWinooski, VT, United StatesHQ recorded Oct 12, 202651-20018 contacts →

Exact match

“Efficiency Vermont is here to help your business and home to incorporate practical, energy-saving upgrades that will benefit you right away.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22Exact matchSan Diego, United StatesHQ recorded Oct 12, 20261,001-5,00018 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Oct 12, 202611-5017 contacts →

Exact match

“Waypoint Energy develops and manages private, public, and utility programs throughout the U.S.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24Exact matchEl Segundo, CA, United StatesHQ recorded Oct 12, 202611-5017 contacts →

Exact match

“RenewAge Energy Solutions is a results-driven energy management services and technology company specializing in large-scale commercial, municipal and multifamily real estate…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25Exact matchCharlottesville, VA, United StatesHQ recorded Oct 12, 202611-5016 contacts →

Exact match

“Our story began in the fall of 2009, when the City of Charlottesville and Albemarle County jointly applied for and won a competitive grant to fund a community-based energy…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

Showing 25 of 177 energy efficiency investment funds based in the United States

See the full list, filter by size, metro and specialty, and access 614 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy efficiency investment funds based in the United States at a glance

As of Oct 12, 2026
30.2%Verified-email coverage
11.5Average contacts per company
1-10Median size (employees)
4.5%Largest-city concentration · San Francisco
Oct 12, 2026Page data refreshed

Companies by employee count

1-10
89
11-50
66
51-200
15
201-500
6
1,001-5,000
1

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 177 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 “energy efficiency investment funds” 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 614 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 12, 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.

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 “energy efficiency investment funds”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficiency investment funds are there based in the United States?

RevenueBase identified 177 company matches for energy efficiency investment funds 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?

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

Which city has the most energy efficiency investment funds?

San Francisco leads with 8 company records, followed by New York (6) and Oakland (5).

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 614 professional contacts with verified work emails tracked across these 177 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 12, 2026.

Ready to reach these companies? Verified emails and direct dials for all 177 energy efficiency investment funds based in the United States. Start with a free account, no credit card.

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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.