Company lists · Data refreshed October 2026

Top 22 Clean energy financing firms based in San Francisco, United States

RevenueBase identified 45 company matches for clean energy financing firms associated with San Francisco, United States as of October 2026 and tracks 9,412 professional contacts across them, including 4,303 with verified work emails. Across the United States, New York is the largest hub for this category (103 companies); San Francisco has 45.

This list covers company matches for clean energy financing firms associated with San Francisco, 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
45Companies
9,412Contacts tracked
4,303Verified emails
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The 22 largest clean energy financing firms based in San Francisco, United States

Ranked by team size
Top 22 of 45 company matches for clean energy financing firms based in San Francisco, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 202610001+7,991 contacts →

Exact match

“Life runs on clean energy.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 2026501-1,000826 contacts →

Exact match

“Pattern Energy is one of the world’s largest privately-owned developers and operators of wind, solar, transmission, and energy storage projects.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 2026201-50093 contacts →

Exact match

“Ecoplexus develops, constructs, owns and operates Renewable Energy projects at utility scale in the U.S, Mexico, Japan, and Southeast Asia.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, United StatesHQ recorded Oct 9, 202611-5072 contacts →

Exact match

“Renewable Properties specializes in developing and investing in small-scale utility and commercial solar energy projects throughout the United States.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 202611-5059 contacts →

Exact match

“Linea Energy is a newly-formed Independent Power Producer aiming to change the status quo of how clean energy is developed and financed to rapidly increase the speed of deployment.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 202611-5052 contacts →

Exact match

“At Clean Energy Counsel, we devote our legal power to advancing clean energy and a sustainable future.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 202611-5034 contacts →

Exact match

“BluePath is a leading financier of sustainable infrastructure.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 20261-1028 contacts →

Exact match

“The defining renewable energy focused investment management firm.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 202611-5021 contacts →

Exact match

“OnSwitch, Inc.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 202611-5016 contacts →

Exact match

“Atmos is a technology company on a mission to accelerate the clean economy.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 202611-5014 contacts →

Exact match

“Segue Sustainable Infrastructure is a principal investment firm providing development capital to renewable energy projects and the infrastructure enabling them.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 202611-5014 contacts →

Exact match

“Metrus Energy develops and finances sustainable energy projects at commercial, industrial, and institutional facilities.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 20261-1011 contacts →

Exact match

“10Power is redefining international development as sustainable innovation.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, United StatesHQ recorded Oct 9, 20261-107 contacts →

Exact match

“ARC is a development, construction and program/construction management company.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 20261-105 contacts →

Exact match

“Homecoming Capital seeks to generate attractive returns by investing in zero-emission infrastructure.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 20261-105 contacts →

Exact match

“Carbon Free Funding is a leading financier in the C-PACE arm of green energy.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 202611-503 contacts →

Exact match

“Build solar where it does the most good.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 20261-103 contacts →

Exact match

“At Deep Green Solar we want to help build a stronger and sustainable economy.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 20261-103 contacts →

Exact match

“Huck is a tech-enabled investment fund on a mission to inspire, finance and build the next generation of energy providers.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 20261-103 contacts →

Exact match

“Lacuna Sustainable Investments is a Marin County, California based investment firm that provides people, projects, and portfolios with capital to further the demand for renewable…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 20261-102 contacts →

Exact match

“Lovelight delivers the highest value energy efficiency and renewable energy solutions for owners, managers, and tenants of commercial and multifamily facilities.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Oct 9, 20261-101 contacts →

Exact match

“Here’s what we’re about: distributed solar energy and storage for communities that need it most.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

Showing 22 of 45 clean energy financing firms based in San Francisco, United States

See the full list, filter by size, metro and specialty, and access 4,303 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clean energy financing firms based in San Francisco, United States at a glance

As of Oct 9, 2026
45.7%Verified-email coverage
209.2Average contacts per company
1-10Median size (employees)
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
16
51-200
2
201-500
2
501-1,000
1
10001+
1

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 45 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 San Francisco, United States whose business descriptions match “clean energy financing firms” 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 4,303 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.

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 financing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clean energy financing firms are there based in San Francisco, United States?

RevenueBase identified 45 company matches for clean energy financing firms associated with San Francisco, 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?

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

Which city in the United States has the most clean energy financing firms?

New York leads the United States with 103 company records, followed by Houston (55) and San Francisco (45).

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 4,303 professional contacts with verified work emails tracked across these 45 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.

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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.