Company lists · Data refreshed September 2026
Top 25 Climate tech investment firms based in the United States
RevenueBase identified 1,027 company matches for climate tech investment firms associated with the United States as of September 2026 and tracks 11,429 professional contacts across them, including 5,468 with verified work emails. New York is the largest hub.
This list covers company matches for climate tech investment firms 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 27, 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.
The 25 largest climate tech investment firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 27, 2026 · View company records in RevenueBase | |||||
| 2 | 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 27, 2026 · View company records in RevenueBase | |||||
| 3 | 251 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 4 | 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 27, 2026 · View company records in RevenueBase | |||||
| 5 | 196 contacts → | ||||
Exact match “HASI invests in sustainable infrastructure assets advancing the energy transition.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 6 | 193 contacts → | ||||
Exact match “Khosla Ventures invests in companies that are bold, early and impactful.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 7 | 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 27, 2026 · View company records in RevenueBase | |||||
| 8 | 159 contacts → | ||||
Exact match “Breakthrough Energy backs companies developing the next generation of clean energy solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 9 | 155 contacts → | ||||
Exact match “CleanChoice Energy is a cleantech company that empowers people and businesses to easily access climate solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 10 | 149 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 11 | 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 27, 2026 · View company records in RevenueBase | |||||
| 12 | 136 contacts → | ||||
Exact match “New Energy Nexus (NEX) is the world's leading ecosystem of funds and accelerators supporting diverse clean energy entrepreneurs to thrive, from emerging tech through to clean…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 13 | 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 27, 2026 · View company records in RevenueBase | |||||
| 14 | 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 27, 2026 · View company records in RevenueBase | |||||
| 15 | 106 contacts → | ||||
Exact match “Speed and efficiency are the cornerstones of climate finance.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 16 | 100 contacts → | ||||
Exact match “WI Harper Group is a pioneering venture capital firm with over three decades of experience investing in transformative companies that shape the future.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 17 | 94 contacts → | ||||
Exact match “Greentown Labs is a 501(c)(3) nonprofit accelerating climatetech innovation for the planet, people, and prosperity.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 18 | 80 contacts → | ||||
Exact match “Syzygy Plasmonics is a technology company decarbonizing chemical production with its proprietary light-driven reactor technology.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 19 | 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 27, 2026 · View company records in RevenueBase | |||||
| 20 | 79 contacts → | ||||
Exact match “Working capital and fractional financial services for Climate startups and SMBs.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 21 | 76 contacts → | ||||
Exact match “Greycroft is a seed-to-growth venture capital firm that partners with entrepreneurs who are striving to build category-defining companies across intelligent consumer and…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 22 | 72 contacts → | ||||
Exact match “It is undeniable that energy is an essential part of modern life.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 23 | 64 contacts → | ||||
Exact match “Neos Partners is a middle-market investment firm focused on second-order investing in the energy transition and critical infrastructure sectors.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 24 | 63 contacts → | ||||
Exact match “Knollwood Investment Advisory is a global investment firm located outside of Baltimore, Maryland.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 25 | 62 contacts → | ||||
Exact match “Elemental Impact is a nonprofit investing platform with 15 years of experience advancing innovative technology that creates lasting economic and climate benefits across…” Recorded in the RevenueBase company graph · Sep 27, 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 “climate tech investment firms”. 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 1,027 climate tech investment firms based in the United States
See the full list, filter by size, metro and specialty, and access 5,468 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Climate tech investment firms based in the United States at a glance
As of Sep 27, 2026Companies by employee count
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 1,027 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 “climate tech investment 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 5,468 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 27, 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.
Climate tech investment firms 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 “climate tech investment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many climate tech investment firms are there based in the United States?
RevenueBase identified 1,027 company matches for climate tech investment firms 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?
General Atlantic tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most climate tech investment firms?
New York leads with 160 company records, followed by San Francisco (88) and Houston (57).
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 5,468 professional contacts with verified work emails tracked across these 1,027 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 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,027 climate tech investment firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Climate tech investment firms by geography
- Climate tech investment firms based in Boston, United States
- Climate tech investment firms based in Chicago, United States
- Climate tech investment firms based in Houston, United States
- Climate tech investment firms based in Los Angeles, United States
- Climate tech investment firms based in New York, United States
- Climate tech investment firms based in San Francisco, United States
- Climate tech investment firms based in Australia
- Climate tech investment firms based in Belgium
- Climate tech investment firms based in Brazil
- Climate tech investment firms based in Canada
- Climate tech investment firms based in China
- Climate tech investment firms based in Denmark
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Climate tech investment firms based in Boston, United States
- Climate tech investment firms based in Chicago, United States
- Climate tech investment firms based in Houston, United States
- Climate tech investment firms based in Los Angeles, United States
- Climate tech investment firms based in New York, United States
- Climate tech investment firms based in San Francisco, United States
Company intelligence · public preview
Top 25 climate tech investment firms based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,027 matching company records for climate tech investment firms based in the United States, with 11,429 tracked contacts and 5,468 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 climate tech investment firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  General Atlanticgeneralatlantic.comHQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 820 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  3degrees Group, INC3degrees.comHQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 324 contacts → |
“3Degrees is a leading global climate solutions provider, pioneer of environmental markets, and Certified B Corporation.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  RA Capital Managementracap.comHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 251 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Anew Climateanewclimate.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 200 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  HASIhasi.comHQ: Annapolis, MD, United StatesReported employees: 51-200 | Annapolis, MD, United States | 51-200 | Exact match | 196 contacts → |
“HASI invests in sustainable infrastructure assets advancing the energy transition.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Khosla Ventureskhoslaventures.comHQ: Menlo Park, CA, United StatesReported employees: 51-200 | Menlo Park, CA, United States | 51-200 | Exact match | 193 contacts → |
“Khosla Ventures invests in companies that are bold, early and impactful.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Quantum Capital Groupquantumcap.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 173 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Breakthrough Energybreakthroughenergy.orgHQ: Kirkland, United StatesReported employees: 51-200 | Kirkland, United States | 51-200 | Exact match | 159 contacts → |
“Breakthrough Energy backs companies developing the next generation of clean energy solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Cleanchoice Energycleanchoiceenergy.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 155 contacts → |
“CleanChoice Energy is a cleantech company that empowers people and businesses to easily access climate solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Massachusetts Clean Energy Centermasscec.comHQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 149 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Greenbackergreenbackercapital.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 141 contacts → |
“As a multi-strategy investment manager and independent power producer, Greenbacker Renewable Energy Company (Greenbacker) is empowering a sustainable world by connecting…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  NEW Energy Nexusnewenergynexus.comHQ: Berkeley, CA, United StatesReported employees: 51-200 | Berkeley, CA, United States | 51-200 | Exact match | 136 contacts → |
“New Energy Nexus (NEX) is the world's leading ecosystem of funds and accelerators supporting diverse clean energy entrepreneurs to thrive, from emerging tech through to clean…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  ECP Energy Capital Partnersecpgp.comHQ: Summit, NJ, United StatesReported employees: 51-200 | Summit, NJ, United States | 51-200 | Exact match | 123 contacts → |
“ECP (Energy Capital Partners) is an investor in critical infrastructure focused on electrification, decarbonization, reliability and sustainability.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  ARA Partnersarapartners.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 119 contacts → |
“Founded in 2017, Ara Partners is a global private markets firm focused on decarbonizing the industrial economy.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Cleancapitalcleancapital.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 106 contacts → |
“Speed and efficiency are the cornerstones of climate finance.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  WI Harper Groupwiharper.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 100 contacts → |
“WI Harper Group is a pioneering venture capital firm with over three decades of experience investing in transformative companies that shape the future.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Greentown Labsgreentownlabs.comHQ: Somerville, MA, United StatesReported employees: 51-200 | Somerville, MA, United States | 51-200 | Exact match | 94 contacts → |
“Greentown Labs is a 501(c)(3) nonprofit accelerating climatetech innovation for the planet, people, and prosperity.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Syzygy Plasmonicsplasmonics.techHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 80 contacts → |
“Syzygy Plasmonics is a technology company decarbonizing chemical production with its proprietary light-driven reactor technology.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  OICoic.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 80 contacts → |
“WE ARE CAPITAL SOLUTIONS PROVIDERS We’re building a diversified portfolio of investments, backed by hard asset collateral, supporting innovation in infrastructure.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Enduring Planetenduringplanet.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 79 contacts → |
“Working capital and fractional financial services for Climate startups and SMBs.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Greycroftgreycroft.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 76 contacts → |
“Greycroft is a seed-to-growth venture capital firm that partners with entrepreneurs who are striving to build category-defining companies across intelligent consumer and…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  NGPngpenergycapital.comHQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 72 contacts → |
“It is undeniable that energy is an essential part of modern life.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Neos Partnersneospartners.comHQ: San Diego, CA, United StatesReported employees: 11-50 | San Diego, CA, United States | 11-50 | Exact match | 64 contacts → |
“Neos Partners is a middle-market investment firm focused on second-order investing in the energy transition and critical infrastructure sectors.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Knollwood Investment Advisorykwiadvisory.comHQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 63 contacts → |
“Knollwood Investment Advisory is a global investment firm located outside of Baltimore, Maryland.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Elemental Impactelementalimpact.comHQ: Honolulu, HI, United StatesReported employees: 51-200 | Honolulu, HI, United States | 51-200 | Exact match | 62 contacts → |
“Elemental Impact is a nonprofit investing platform with 15 years of experience advancing innovative technology that creates lasting economic and climate benefits across…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,027 company matches
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Climate tech investment firms: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,027 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1,027 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Climate tech investment firms by metro
Questions about this company list
What does Exact match mean for climate tech investment firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many climate tech investment firms did RevenueBase find based in the United States?
The saved snapshot records 1,027 matching company records, 11,429 tracked contacts and 5,468 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Climate tech investment firms by geography
- Climate tech investment firms based in Boston, United States
- Climate tech investment firms based in Chicago, United States
- Climate tech investment firms based in Houston, United States
- Climate tech investment firms based in Los Angeles, United States
- Climate tech investment firms based in New York, United States
- Climate tech investment firms based in San Francisco, United States
- Climate tech investment firms based in Australia
- Climate tech investment firms based in Belgium
- Climate tech investment firms based in Brazil
- Climate tech investment firms based in Canada
- Climate tech investment firms based in China
- Climate tech investment firms based in Denmark
Cite this list
RevenueBase Data Team. Top 25 climate tech investment firms based in the United States. Snapshot: September 27, 2026. https://revenuebase.ai/companies/climate-tech-investment-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Climate tech investment firms based in Boston, United States
- Climate tech investment firms based in Chicago, United States
- Climate tech investment firms based in Houston, United States
- Climate tech investment firms based in Los Angeles, United States
- Climate tech investment firms based in New York, United States
- Climate tech investment firms based in San Francisco, United States
Company intelligence · public preview
Top 25 climate tech investment firms based in the United States
RevenueBase records 1,027 matching company records for climate tech investment firms based in the United States, with 11,429 tracked contacts and 5,468 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 climate tech investment firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | General Atlanticgeneralatlantic.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 820 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 3degrees Group, INC3degrees.com HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 324 contacts → |
“3Degrees is a leading global climate solutions provider, pioneer of environmental markets, and Certified B Corporation.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | RA Capital Managementracap.com HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 251 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Anew Climateanewclimate.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 200 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HASIhasi.com HQ: Annapolis, MD, United StatesReported employees: 51-200 | Annapolis, MD, United States | 51-200 | Exact match | 196 contacts → |
“HASI invests in sustainable infrastructure assets advancing the energy transition.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Khosla Ventureskhoslaventures.com HQ: Menlo Park, CA, United StatesReported employees: 51-200 | Menlo Park, CA, United States | 51-200 | Exact match | 193 contacts → |
“Khosla Ventures invests in companies that are bold, early and impactful.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Quantum Capital Groupquantumcap.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 173 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Breakthrough Energybreakthroughenergy.org HQ: Kirkland, United StatesReported employees: 51-200 | Kirkland, United States | 51-200 | Exact match | 159 contacts → |
“Breakthrough Energy backs companies developing the next generation of clean energy solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Cleanchoice Energycleanchoiceenergy.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 155 contacts → |
“CleanChoice Energy is a cleantech company that empowers people and businesses to easily access climate solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Massachusetts Clean Energy Centermasscec.com HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 149 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Greenbackergreenbackercapital.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 141 contacts → |
“As a multi-strategy investment manager and independent power producer, Greenbacker Renewable Energy Company (Greenbacker) is empowering a sustainable world by connecting…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | NEW Energy Nexusnewenergynexus.com HQ: Berkeley, CA, United StatesReported employees: 51-200 | Berkeley, CA, United States | 51-200 | Exact match | 136 contacts → |
“New Energy Nexus (NEX) is the world's leading ecosystem of funds and accelerators supporting diverse clean energy entrepreneurs to thrive, from emerging tech through to clean…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | ECP Energy Capital Partnersecpgp.com HQ: Summit, NJ, United StatesReported employees: 51-200 | Summit, NJ, United States | 51-200 | Exact match | 123 contacts → |
“ECP (Energy Capital Partners) is an investor in critical infrastructure focused on electrification, decarbonization, reliability and sustainability.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ARA Partnersarapartners.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 119 contacts → |
“Founded in 2017, Ara Partners is a global private markets firm focused on decarbonizing the industrial economy.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Cleancapitalcleancapital.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 106 contacts → |
“Speed and efficiency are the cornerstones of climate finance.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | WI Harper Groupwiharper.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 100 contacts → |
“WI Harper Group is a pioneering venture capital firm with over three decades of experience investing in transformative companies that shape the future.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Greentown Labsgreentownlabs.com HQ: Somerville, MA, United StatesReported employees: 51-200 | Somerville, MA, United States | 51-200 | Exact match | 94 contacts → |
“Greentown Labs is a 501(c)(3) nonprofit accelerating climatetech innovation for the planet, people, and prosperity.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Syzygy Plasmonicsplasmonics.tech HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 80 contacts → |
“Syzygy Plasmonics is a technology company decarbonizing chemical production with its proprietary light-driven reactor technology.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | OICoic.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 80 contacts → |
“WE ARE CAPITAL SOLUTIONS PROVIDERS We’re building a diversified portfolio of investments, backed by hard asset collateral, supporting innovation in infrastructure.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Enduring Planetenduringplanet.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 79 contacts → |
“Working capital and fractional financial services for Climate startups and SMBs.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Greycroftgreycroft.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 76 contacts → |
“Greycroft is a seed-to-growth venture capital firm that partners with entrepreneurs who are striving to build category-defining companies across intelligent consumer and…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | NGPngpenergycapital.com HQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 72 contacts → |
“It is undeniable that energy is an essential part of modern life.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Neos Partnersneospartners.com HQ: San Diego, CA, United StatesReported employees: 11-50 | San Diego, CA, United States | 11-50 | Exact match | 64 contacts → |
“Neos Partners is a middle-market investment firm focused on second-order investing in the energy transition and critical infrastructure sectors.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Knollwood Investment Advisorykwiadvisory.com HQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 63 contacts → |
“Knollwood Investment Advisory is a global investment firm located outside of Baltimore, Maryland.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Elemental Impactelementalimpact.com HQ: Honolulu, HI, United StatesReported employees: 51-200 | Honolulu, HI, United States | 51-200 | Exact match | 62 contacts → |
“Elemental Impact is a nonprofit investing platform with 15 years of experience advancing innovative technology that creates lasting economic and climate benefits across…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Climate tech investment firms: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,027 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1,027 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Climate tech investment firms by metro
Questions about this company list
What does Exact match mean for climate tech investment firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many climate tech investment firms did RevenueBase find based in the United States?
The saved snapshot records 1,027 matching company records, 11,429 tracked contacts and 5,468 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Climate tech investment firms by geography
- Climate tech investment firms based in Boston, United States
- Climate tech investment firms based in Chicago, United States
- Climate tech investment firms based in Houston, United States
- Climate tech investment firms based in Los Angeles, United States
- Climate tech investment firms based in New York, United States
- Climate tech investment firms based in San Francisco, United States
- Climate tech investment firms based in Australia
- Climate tech investment firms based in Belgium
- Climate tech investment firms based in Brazil
- Climate tech investment firms based in Canada
- Climate tech investment firms based in China
- Climate tech investment firms based in Denmark
Cite this list
RevenueBase Data Team. Top 25 climate tech investment firms based in the United States. Snapshot: September 27, 2026. https://revenuebase.ai/companies/climate-tech-investment-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Climate tech investment firms based in Houston, United States
- Climate tech investment firms based in Los Angeles, United States
- Climate tech investment firms based in New York, United States
- Climate tech investment firms based in San Francisco, United States