Company lists · Data refreshed September 2026
Top 25 Climate tech companies based in the United States
RevenueBase identified 634 company matches for climate tech companies associated with the United States as of September 2026 and tracks 22,205 professional contacts across them, including 9,969 with verified work emails. New York is the largest hub.
This list covers company matches for climate tech companies 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 19, 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 companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 7,665 contacts → | ||||
Exact match “Carrier is a global leader in intelligent climate and energy solutions, pioneering sustainable innovations in climate technologies.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 2,213 contacts → | ||||
Exact match “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 2,121 contacts → | ||||
Exact match “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 838 contacts → | ||||
Exact match “Franklin Energy delivers end-to-end sustainability solutions through a portfolio of intelligent products and services that lower energy costs, reduce carbon and waste, and grow…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 772 contacts → | ||||
Exact match “Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 513 contacts → | ||||
Exact match “For more than eight decades, GTI Energy has contributed to the strengthening of energy systems and the communities they serve.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 326 contacts → | ||||
Exact match “For 40 years, VEIC has helped energy leaders nationwide meet their clean energy goals.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 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 19, 2026 · View company records in RevenueBase | |||||
| 9 | 234 contacts → | ||||
Exact match “Arq is a diversified, environmental technology company with products that enable a cleaner and safer planet while actively reducing our environmental impact.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 215 contacts → | ||||
Exact match “Aeroseal is a climate tech company on a mission - reduce the world's carbon emissions by 1 gigaton annually.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 213 contacts → | ||||
Exact match “The Energy & Environmental Research Center (EERC) is recognized as one of the world's leading developers of cleaner, more efficient energy to power the world and environmental…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 210 contacts → | ||||
Exact match “Dalkia Energy Solutions, a subsidiary of the EDF (Électricité de France) Group, is a national leader in energy efficiency and sustainability for commercial, industrial, and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 203 contacts → | ||||
Exact match “CEE is a community-based clean energy nonprofit with special expertise in energy efficiency that stretches back 40 years.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 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 19, 2026 · View company records in RevenueBase | |||||
| 15 | 191 contacts → | ||||
Exact match “Ever-Green Energy is a recognized leader in energy conservation and the use of renewable energy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 172 contacts → | ||||
Exact match “Carbon Direct is a trusted energy and climate solutions company that combines world-class scientific expertise, technical rigor, and market insights to help clients achieve their…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 167 contacts → | ||||
Exact match “CATF advocates for the change in technologies and policies needed to get to a zero-emissions, high-energy planet at an affordable cost.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 159 contacts → | ||||
Exact match “Breakthrough Energy backs companies developing the next generation of clean energy solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 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 19, 2026 · View company records in RevenueBase | |||||
| 20 | 146 contacts → | ||||
Exact match “We're a nonprofit headquartered in Madison, WI with an office in Chicago and remote staff across the U.S.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 131 contacts → | ||||
Exact match “ConnectM is a clean energy technology and solutions provider for residential and light commercial buildings and all-electric original equipment manufacturers with a proprietary…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 106 contacts → | ||||
Exact match “Phononic, Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 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 19, 2026 · View company records in RevenueBase | |||||
| 24 | 86 contacts → | ||||
Exact match “We lead the charge in providing renewable energy solutions that invigorate progress, enhance lives, and leave a legacy of environmental stewardship.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 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 19, 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 companies”. 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 634 climate tech companies based in the United States
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Climate tech companies based in the United States at a glance
As of Sep 19, 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 634 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 companies” 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 9,969 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 19, 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 “climate tech companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many climate tech companies are there based in the United States?
RevenueBase identified 634 company matches for climate tech companies 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?
Carrier tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most climate tech companies?
New York leads with 42 company records, followed by Houston (34) and San Francisco (23).
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 9,969 professional contacts with verified work emails tracked across these 634 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 634 climate tech companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Climate tech companies by geography
- Climate tech companies based in Mumbai, India
- Climate tech companies based in New Delhi, India
- Climate tech companies based in Australia
- Climate tech companies based in Austria
- Climate tech companies based in Belgium
- Climate tech companies based in Brazil
- Climate tech companies based in Canada
- Climate tech companies based in Denmark
- Climate tech companies based in France
- Climate tech companies based in Germany
- Climate tech companies based in India
- Climate tech companies based in Indonesia
Browse the directory
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 companies based in Mumbai, India
- Climate tech companies based in New Delhi, India
- Climate tech companies based in Australia
- Climate tech companies based in Austria
- Climate tech companies based in Belgium
- Climate tech companies based in Brazil
Company intelligence · public preview
Top 25 climate tech companies 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 634 matching company records for climate tech companies based in the United States, with 22,205 tracked contacts and 9,969 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 19, 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 companies 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 |  Carriercarrier.comHQ: Palm Beach Gardens, FL, United StatesReported employees: 10001+ | Palm Beach Gardens, FL, United States | 10001+ | Exact match | 7,665 contacts → |
“Carrier is a global leader in intelligent climate and energy solutions, pioneering sustainable innovations in climate technologies.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Mckinstrymckinstry.comHQ: Seattle, WA, United StatesReported employees: 1,001-5,000 | Seattle, WA, United States | 1,001-5,000 | Exact match | 2,213 contacts → |
“We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Clearesultclearesult.comHQ: Austin, TX, United StatesReported employees: 1,001-5,000 | Austin, TX, United States | 1,001-5,000 | Exact match | 2,121 contacts → |
“CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Franklin Energyfranklinenergy.comHQ: Port Washington, WI, United StatesReported employees: 1,001-5,000 | Port Washington, WI, United States | 1,001-5,000 | Exact match | 838 contacts → |
“Franklin Energy delivers end-to-end sustainability solutions through a portfolio of intelligent products and services that lower energy costs, reduce carbon and waste, and grow…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Energy Solutionsenergy-solution.comHQ: Oakland, CA, United StatesReported employees: 201-500 | Oakland, CA, United States | 201-500 | Exact match | 772 contacts → |
“Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | GTI Energygti.energy HQ: Des Plaines, IL, United StatesReported employees: 201-500 | Des Plaines, IL, United States | 201-500 | Exact match | 513 contacts → |
“For more than eight decades, GTI Energy has contributed to the strengthening of energy systems and the communities they serve.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | VEICveic.org HQ: Winooski, VT, United StatesReported employees: 201-500 | Winooski, VT, United States | 201-500 | Exact match | 326 contacts → |
“For 40 years, VEIC has helped energy leaders nationwide meet their clean energy goals.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ARQarq.comHQ: Greenwood Village, CO, United StatesReported employees: 201-500 | Greenwood Village, CO, United States | 201-500 | Exact match | 234 contacts → |
“Arq is a diversified, environmental technology company with products that enable a cleaner and safer planet while actively reducing our environmental impact.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Aerosealaeroseal.com HQ: Miamisburg, OH, United StatesReported employees: 51-200 | Miamisburg, OH, United States | 51-200 | Exact match | 215 contacts → |
“Aeroseal is a climate tech company on a mission - reduce the world's carbon emissions by 1 gigaton annually.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Energy & Environmental Research Centerundeerc.org HQ: Grand Forks, ND, United StatesReported employees: 201-500 | Grand Forks, ND, United States | 201-500 | Exact match | 213 contacts → |
“The Energy & Environmental Research Center (EERC) is recognized as one of the world's leading developers of cleaner, more efficient energy to power the world and environmental…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Dalkia Energy Solutionsdalkiasolutions.comHQ: Beverly, MA, United StatesReported employees: 201-500 | Beverly, MA, United States | 201-500 | Exact match | 210 contacts → |
“Dalkia Energy Solutions, a subsidiary of the EDF (Électricité de France) Group, is a national leader in energy efficiency and sustainability for commercial, industrial, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Center For Energy And Environmentmncee.org HQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 203 contacts → |
“CEE is a community-based clean energy nonprofit with special expertise in energy efficiency that stretches back 40 years.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ever-Green Energyever-greenenergy.com HQ: St. Paul, MN, United StatesReported employees: 201-500 | St. Paul, MN, United States | 201-500 | Exact match | 191 contacts → |
“Ever-Green Energy is a recognized leader in energy conservation and the use of renewable energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Carbon Directcarbon-direct.comHQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 172 contacts → |
“Carbon Direct is a trusted energy and climate solutions company that combines world-class scientific expertise, technical rigor, and market insights to help clients achieve their…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Clean AIR Task Forcecatf.us HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 167 contacts → |
“CATF advocates for the change in technologies and policies needed to get to a zero-emissions, high-energy planet at an affordable cost.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Slipstreamslipstreaminc.org HQ: Madison, WI, United StatesReported employees: 51-200 | Madison, WI, United States | 51-200 | Exact match | 146 contacts → |
“We're a nonprofit headquartered in Madison, WI with an office in Chicago and remote staff across the U.S.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Connectm Technology Solutionsconnectm.com HQ: Marlborough, MA, United StatesReported employees: 51-200 | Marlborough, MA, United States | 51-200 | Exact match | 131 contacts → |
“ConnectM is a clean energy technology and solutions provider for residential and light commercial buildings and all-electric original equipment manufacturers with a proprietary…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Phononic INCphononic.comHQ: Durham, NC, United StatesReported employees: 51-200 | Durham, NC, United States | 51-200 | Exact match | 106 contacts → |
“Phononic, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Puresky Energypureskyenergy.comHQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 86 contacts → |
“We lead the charge in providing renewable energy solutions that invigorate progress, enhance lives, and leave a legacy of environmental stewardship.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 634 company matches
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Climate tech companies: dataset insights
September 19, 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
634 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 634 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 19, 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 ↗
Questions about this company list
What does Exact match mean for climate tech companies?
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 companies did RevenueBase find based in the United States?
The saved snapshot records 634 matching company records, 22,205 tracked contacts and 9,969 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 19, 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 companies by geography
- Climate tech companies based in Mumbai, India
- Climate tech companies based in New Delhi, India
- Climate tech companies based in Australia
- Climate tech companies based in Austria
- Climate tech companies based in Belgium
- Climate tech companies based in Brazil
- Climate tech companies based in Canada
- Climate tech companies based in Denmark
- Climate tech companies based in France
- Climate tech companies based in Germany
- Climate tech companies based in India
- Climate tech companies based in Indonesia
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 climate tech companies based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/climate-tech-companies/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 companies based in Mumbai, India
- Climate tech companies based in New Delhi, India
- Climate tech companies based in Australia
- Climate tech companies based in Austria
- Climate tech companies based in Belgium
- Climate tech companies based in Brazil
Company intelligence · public preview
Top 25 climate tech companies based in the United States
RevenueBase records 634 matching company records for climate tech companies based in the United States, with 22,205 tracked contacts and 9,969 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 19, 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 companies 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 | Carriercarrier.com HQ: Palm Beach Gardens, FL, United StatesReported employees: 10001+ | Palm Beach Gardens, FL, United States | 10001+ | Exact match | 7,665 contacts → |
“Carrier is a global leader in intelligent climate and energy solutions, pioneering sustainable innovations in climate technologies.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Mckinstrymckinstry.com HQ: Seattle, WA, United StatesReported employees: 1,001-5,000 | Seattle, WA, United States | 1,001-5,000 | Exact match | 2,213 contacts → |
“We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Clearesultclearesult.com HQ: Austin, TX, United StatesReported employees: 1,001-5,000 | Austin, TX, United States | 1,001-5,000 | Exact match | 2,121 contacts → |
“CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Franklin Energyfranklinenergy.com HQ: Port Washington, WI, United StatesReported employees: 1,001-5,000 | Port Washington, WI, United States | 1,001-5,000 | Exact match | 838 contacts → |
“Franklin Energy delivers end-to-end sustainability solutions through a portfolio of intelligent products and services that lower energy costs, reduce carbon and waste, and grow…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Energy Solutionsenergy-solution.com HQ: Oakland, CA, United StatesReported employees: 201-500 | Oakland, CA, United States | 201-500 | Exact match | 772 contacts → |
“Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | GTI Energygti.energy HQ: Des Plaines, IL, United StatesReported employees: 201-500 | Des Plaines, IL, United States | 201-500 | Exact match | 513 contacts → |
“For more than eight decades, GTI Energy has contributed to the strengthening of energy systems and the communities they serve.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | VEICveic.org HQ: Winooski, VT, United StatesReported employees: 201-500 | Winooski, VT, United States | 201-500 | Exact match | 326 contacts → |
“For 40 years, VEIC has helped energy leaders nationwide meet their clean energy goals.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ARQarq.com HQ: Greenwood Village, CO, United StatesReported employees: 201-500 | Greenwood Village, CO, United States | 201-500 | Exact match | 234 contacts → |
“Arq is a diversified, environmental technology company with products that enable a cleaner and safer planet while actively reducing our environmental impact.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Aerosealaeroseal.com HQ: Miamisburg, OH, United StatesReported employees: 51-200 | Miamisburg, OH, United States | 51-200 | Exact match | 215 contacts → |
“Aeroseal is a climate tech company on a mission - reduce the world's carbon emissions by 1 gigaton annually.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Energy & Environmental Research Centerundeerc.org HQ: Grand Forks, ND, United StatesReported employees: 201-500 | Grand Forks, ND, United States | 201-500 | Exact match | 213 contacts → |
“The Energy & Environmental Research Center (EERC) is recognized as one of the world's leading developers of cleaner, more efficient energy to power the world and environmental…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Dalkia Energy Solutionsdalkiasolutions.com HQ: Beverly, MA, United StatesReported employees: 201-500 | Beverly, MA, United States | 201-500 | Exact match | 210 contacts → |
“Dalkia Energy Solutions, a subsidiary of the EDF (Électricité de France) Group, is a national leader in energy efficiency and sustainability for commercial, industrial, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Center For Energy And Environmentmncee.org HQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 203 contacts → |
“CEE is a community-based clean energy nonprofit with special expertise in energy efficiency that stretches back 40 years.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ever-Green Energyever-greenenergy.com HQ: St. Paul, MN, United StatesReported employees: 201-500 | St. Paul, MN, United States | 201-500 | Exact match | 191 contacts → |
“Ever-Green Energy is a recognized leader in energy conservation and the use of renewable energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Carbon Directcarbon-direct.com HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 172 contacts → |
“Carbon Direct is a trusted energy and climate solutions company that combines world-class scientific expertise, technical rigor, and market insights to help clients achieve their…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Clean AIR Task Forcecatf.us HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 167 contacts → |
“CATF advocates for the change in technologies and policies needed to get to a zero-emissions, high-energy planet at an affordable cost.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Slipstreamslipstreaminc.org HQ: Madison, WI, United StatesReported employees: 51-200 | Madison, WI, United States | 51-200 | Exact match | 146 contacts → |
“We're a nonprofit headquartered in Madison, WI with an office in Chicago and remote staff across the U.S.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Connectm Technology Solutionsconnectm.com HQ: Marlborough, MA, United StatesReported employees: 51-200 | Marlborough, MA, United States | 51-200 | Exact match | 131 contacts → |
“ConnectM is a clean energy technology and solutions provider for residential and light commercial buildings and all-electric original equipment manufacturers with a proprietary…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Phononic INCphononic.com HQ: Durham, NC, United StatesReported employees: 51-200 | Durham, NC, United States | 51-200 | Exact match | 106 contacts → |
“Phononic, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Puresky Energypureskyenergy.com HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 86 contacts → |
“We lead the charge in providing renewable energy solutions that invigorate progress, enhance lives, and leave a legacy of environmental stewardship.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 634 company matches
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Climate tech companies: dataset insights
September 19, 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
634 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 634 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 19, 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 ↗
Questions about this company list
What does Exact match mean for climate tech companies?
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 companies did RevenueBase find based in the United States?
The saved snapshot records 634 matching company records, 22,205 tracked contacts and 9,969 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 19, 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.
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Cite this list
RevenueBase Data Team. Top 25 climate tech companies based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/climate-tech-companies/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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