Company lists · Data refreshed September 2026

Top 25 Venture capital firms focused on climate based in Boston, United States

RevenueBase identified 37 venture capital firms focused on climate headquartered in Boston, United States as of September 2026 and tracks 766 professional contacts across them, including 388 with verified work emails. New York is the largest hub.

This list covers venture capital firms focused on climate headquartered in Boston, 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 14, 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 14, 2026 86% judged on-target in blind review
37Companies
766Contacts tracked
388Verified emails
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The 25 largest venture capital firms focused on climate based in Boston, United States

Ranked by team size
Top 25 of 37 venture capital firms focused on climate based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to venture capital firms focused on climate: 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
1Partial evidenceBoston, MA, United StatesHQ checked Sep 14, 2026201-500251 contacts →

Partial evidence

“Founded in 2004, RA Capital Management is an active, multi-stage investment manager dedicated to evidence-based, science-led investing in public and private healthcare, life…”

Source: RevenueBase Database · checked Sep 14, 2026
2Partial evidenceBoston, MA, United StatesHQ checked Sep 14, 202651-200149 contacts →

Partial evidence

“The Massachusetts Clean Energy Center is a state economic development agency dedicated to accelerating the growth of the clean energy and climatetech sector across the…”

Source: RevenueBase Database · checked Sep 14, 2026
3Strong evidenceBoston, MA, United StatesHQ checked Sep 14, 2026n/a109 contacts →

Strong evidence

“FA Technology Ventures is an independent, established venture capital firm.”

Source: RevenueBase Database · checked Sep 14, 2026
4Strong evidenceBoston, MA, United StatesHQ checked Sep 14, 202611-5054 contacts →

Strong evidence

“Clean Energy Ventures is a venture capital firm focused on investing in companies commercializing disruptive advanced energy technologies and business model innovations that can…”

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-1025 contacts →

Partial evidence

“MCJ is an early-stage fund for the energy and industry transition and the inevitable impacts of climate change.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceBoston, MA, United StatesHQ checked Sep 14, 202611-5022 contacts →

Indirect evidence

“Commercializing innovation is hard.”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceBoston, MA, United StatesHQ checked Sep 14, 202611-5018 contacts →

Partial 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 14, 2026
8Indirect evidenceBoston, United StatesHQ checked Sep 14, 202611-5016 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceBoston, MA, United StatesHQ checked Sep 14, 202611-5015 contacts →

Indirect evidence

“Our Culture: At MMV, we’re a team of fair, dedicated investors and operators who put integrity, collaboration, and teamwork at the forefront of what we do.”

Source: RevenueBase Database · checked Sep 14, 2026
10Strong evidenceBoston, MA, United StatesHQ checked Sep 14, 202611-5013 contacts →

Strong evidence

“LiquidMetal Ventures is a Boston based, early-stage focused venture capital fund focusing on Energy & Sustainability, Biotech & Healthcare and AI & Robotics, with a mission…”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceBoston, MA, United StatesHQ checked Sep 14, 202611-5012 contacts →

Partial evidence

“Founded in 2013, WAVE Equity Partners is an independent sustainability-focused private investment firm that makes investments in early-growth companies whose proven clean…”

Source: RevenueBase Database · checked Sep 14, 2026
12Strong evidenceBoston, MA, United StatesHQ checked Sep 14, 202611-5012 contacts →

Strong evidence

“RockPort Capital is a multi-stage venture capital firm that invests in the areas of alternative and traditional energy, mobility, and sustainability.”

Source: RevenueBase Database · checked Sep 14, 2026
13Strong evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-106 contacts →

Strong evidence

“Propeller is a venture fund investing at the ocean-climate nexus.”

Source: RevenueBase Database · checked Sep 14, 2026
14Partial evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-105 contacts →

Partial evidence

“WindSail Capital Group is a leading provider of growth capital to companies within the clean energy economy.”

Source: RevenueBase Database · checked Sep 14, 2026
15Strong evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-105 contacts →

Strong evidence

“Workshop is a Venture Studio that invests and builds alongside founders in climate and education.”

Source: RevenueBase Database · checked Sep 14, 2026
16Strong evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-104 contacts →

Strong evidence

“Blindspot Ventures is a seed focused venture capital fund based in Boston, backing cross vertical infrastructure and platform technologies We partner with contrarian founders…”

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceBoston, MA, United StatesHQ checked Sep 14, 202611-504 contacts →

Partial evidence

“Welcome to Millennium Capital, a division of Millennium Management Corp.”

Source: RevenueBase Database · checked Sep 14, 2026
18Partial evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“At Climate People, our mission is to unlock talent, empower innovation, and fast-track decarbonization.”

Source: RevenueBase Database · checked Sep 14, 2026
19Strong evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-104 contacts →

Strong evidence

“We equip stakeholders and decision-makers to leverage the transformative power of publicly-held capital for real-world climate solutions to ensure a just transition to an…”

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

“AccelR8 is an investment firm investing to accelerate the transition to a decarbonized and resilient economy.”

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceBoston, United StatesHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

“Cosmos is a research, design, and engineering company.”

Source: RevenueBase Database · checked Sep 14, 2026
22Partial evidenceBoston, United StatesHQ checked Sep 14, 20261-101 contacts →

Partial evidence

“the enough company exists to explain and evangelize market-driven shifts that bring speed and scale to the climate crisis fight.”

Source: RevenueBase Database · checked Sep 14, 2026
23Strong evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-101 contacts →

Strong evidence

Climate Venture Partners is currently raising a pre-seed round for Applied Bioplastics.”

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Impact Investing at the Fulcrum of Technology & Environment ® Renewable Energy | Energy Access | Smart Grid | Smart Buildings | IOT | Robotics | Artificial Intelligence | AR/VR |…”

Source: RevenueBase Database · checked Sep 14, 2026
25Partial evidenceBoston, MA, United StatesHQ checked Sep 14, 20261-101 contacts →

Partial evidence

“We are working towards a better economy in America, where capital protects our planet and builds wealth equitably.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 37 venture capital firms focused on climate based in Boston, United States

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Venture capital firms focused on climate based in Boston, United States at a glance

As of Sep 14, 2026
50.7%Verified-email coverage
20.7Average contacts per company
1-10Median size (employees)
445.9%Largest-city concentration · New York
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
12
51-200
1
201-500
1

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 37 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 venture capital firms focused on climate, 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 Boston, United States whose own description of what they do matches “venture capital firms focused on climate”. 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 venture capital firms focused on climate), 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 venture capital firms focused on climate, and records with no verified work email. Companies headquartered outside Boston 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, 388 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 14, 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.

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 venture capital firms focused on climate, 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 venture capital firms focused on climate are there based in Boston, United States?

RevenueBase identified 37 venture capital firms focused on climate headquartered in Boston, 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?

RA Capital Management, headquartered in Boston, tops this list with the largest team on record.

Which city has the most venture capital firms focused on climate?

New York leads with 165 headquartered companies, followed by San Francisco (128) and Los Angeles (48).

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 388 verified decision-maker contacts tracked across these 37 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 14, 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.