Company lists · Data refreshed September 2026

Top 25 Environmental finance companies based in the United States

RevenueBase identified 210 environmental finance companies headquartered in the United States as of September 2026 and tracks 9,737 professional contacts across them, including 1,140 with verified work emails. New York is the largest hub.

This list covers environmental finance companies 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 19, 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 19, 2026 86% judged on-target in blind review
210Companies
9,737Contacts tracked
1,140Verified emails
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The 25 largest environmental finance companies based in the United States

Ranked by team size
Top 25 of 210 environmental finance companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental finance companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNorwalk, CT, United StatesHQ checked Sep 19, 20265,001-10,0007,253 contacts →

Indirect evidence

“Every year, the infrastructure that powers our homes, transports our products, heals our loved ones, and keeps our societies moving forward needs a trillion dollars more…”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceWashington, DC, United StatesHQ checked Sep 19, 202651-200434 contacts →

Partial evidence

“Synergy Consulting is Global Leader in Financial and Corporate Advisory.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 2026201-500200 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceOakland, CA, United StatesHQ checked Sep 19, 202651-200184 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 202651-200163 contacts →

Indirect evidence

“Marathon Capital is the largest independent investment bank dedicated to servicing the clean economy.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5080 contacts →

Indirect evidence

“WE ARE CAPITAL SOLUTIONS PROVIDERS We’re building a diversified portfolio of investments, backed by hard asset collateral, supporting innovation in infrastructure.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceWashington, DC, United StatesHQ checked Sep 19, 202651-20079 contacts →

Partial evidence

“Working capital and fractional financial services for Climate startups and SMBs.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5067 contacts →

Partial evidence

“CRC-IB is a full-service investment bank providing industry-leading financial services across the energy transition.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceBerkeley, CA, United StatesHQ checked Sep 19, 202611-5060 contacts →

Indirect evidence

“Cultivo accelerates investment into nature at scale.”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceBethesda, MD, United StatesHQ checked Sep 19, 202611-5058 contacts →

Partial evidence

“Calvert Impact is a global impact investment firm that helps everyday investors and financial professionals invest in solutions that benefit people and the planet.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceClearwater, FL, United StatesHQ checked Sep 19, 202651-20056 contacts →

Partial evidence

“Our Mission At Churchill, our mission is to deliver financial services to our clients, while creating a meaningful social and economic impact to communities nationwide.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceStamford, CT, United StatesHQ checked Sep 19, 202611-5048 contacts →

Partial evidence

“CounterpointeSRE operates at the intersection of commercial real estate and energy industries providing mortgage, C-PACE and other energy financial products.”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-5030 contacts →

Partial evidence

“BluePath is a leading financier of sustainable infrastructure.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceNew York, United StatesHQ checked Sep 19, 202611-5028 contacts →

Partial evidence

“Boundless Impact Research & Analytics is a frontier environmental impact data and analytics provider to clean technology investors, asset management firms, and companies (venture…”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5023 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5023 contacts →

Indirect evidence

“Founded in 2017, Javelin Capital is a boutique investment banking firm for companies in the renewable energy, energy storage and green chemistry sectors.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceWashington, DC, United StatesHQ checked Sep 19, 202611-5023 contacts →

Partial evidence

“Planet Partnerships is a boutique investment and financial advisory firm specializing in the mobilization of blended finance and private capital.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 19, 202611-5022 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
19Partial evidenceHartford, CT, United StatesHQ checked Sep 19, 202611-5020 contacts →

Partial evidence

“The green energy economy is growing, but we’ve discovered that there is a financing gap that prevents equal access.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceBoston, MA, United StatesHQ checked Sep 19, 202611-5018 contacts →

Indirect evidence

“Spring Lane Capital offers a new approach to faster growth for companies that deploy smaller-scale projects and equipment.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceBoston, United StatesHQ checked Sep 19, 202611-5016 contacts →

Indirect evidence

“Conservation Resources is an impact investment organization founded in 2004.”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-5014 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceLaguna Beach, CA, United StatesHQ checked Sep 19, 202651-20012 contacts →

Partial evidence

“We are a renewable energy finance company that operates commercial lending platforms in California.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceSanta Cruz, United StatesHQ checked Sep 19, 20261-1011 contacts →

Indirect evidence

“In3 Capital Group is an impact capital,"boutique" investment banking and business development services firm started in 1996.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-509 contacts →

Partial evidence

“The Ecosystem Integrity Fund (“EIF”) is an early growth stage investor in companies contributing to environmental sustainability.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 210 environmental finance companies based in the United States

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Environmental finance companies based in the United States at a glance

As of Sep 19, 2026
11.7%Verified-email coverage
46.4Average contacts per company
1-10Median size (employees)
17.6%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
129
11-50
65
51-200
13
201-500
1
5,001-10,000
1
10001+
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 210 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 environmental finance companies, 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 “environmental finance companies”. 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 environmental finance companies), 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 environmental finance companies, 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, 1,140 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 19, 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.

Environmental finance companies by metro

  • Environmental finance companies in New York37

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 environmental finance companies, 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 environmental finance companies are there based in the United States?

RevenueBase identified 210 environmental finance companies 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?

GE Capital, headquartered in Norwalk, tops this list with the largest team on record.

Which city has the most environmental finance companies?

New York leads with 37 headquartered companies, followed by Washington (12) and Houston (9).

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 1,140 verified decision-maker contacts tracked across these 210 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 19, 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 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.