Company lists · Data refreshed September 2026
Top 25 Clean tech companies based in the United States
RevenueBase identified 3,164 company matches for clean tech companies associated with the United States as of September 2026 and tracks 121,084 professional contacts across them, including 46,817 with verified work emails. New York is the largest hub.
This list covers company matches for clean 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 clean tech companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 29,528 contacts → | ||||
Exact match “GE Vernova is a purpose-built energy technology company on a mission to electrify to thrive and decarbonize the world.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 10,272 contacts → | ||||
Exact match “Trane is the building technology and energy solutions leader who deploys a depth and breadth of expertise, backgrounds, and perspectives to innovate new technologies and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 5,387 contacts → | ||||
Exact match “The world no longer thinks of energy as a matter of supply and demand.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 3,797 contacts → | ||||
Exact match “Generac is the total energy solutions company powering a smarter world.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 2,741 contacts → | ||||
Exact match “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 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 | |||||
| 8 | 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 | |||||
| 9 | 1,763 contacts → | ||||
Exact match “At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 1,383 contacts → | ||||
Exact match “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 1,009 contacts → | ||||
Exact match “We are a purpose-driven organization focused on empowering communities through clean energy, technology innovation, and collaborative partnerships.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 906 contacts → | ||||
Exact match “Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 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 | |||||
| 14 | 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 | |||||
| 15 | 733 contacts → | ||||
Exact match “Resource Innovations (RI) is an energy transformation firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 719 contacts → | ||||
Exact match “We’re on a mission to make power personal.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 624 contacts → | ||||
Exact match “DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 607 contacts → | ||||
Exact match “Nexamp is leading the transformation to the new energy economy with proven solutions for the deployment and operation of solar energy assets.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 594 contacts → | ||||
Exact match “Apex Clean Energy was founded with a singular focus: to accelerate the shift to clean energy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 573 contacts → | ||||
Exact match “Our people are the heart and soul of our company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 571 contacts → | ||||
Exact match “We are your digital partner for sustainability and efficiency, ensuring Life Is On, for homes, buildings, data centers, infrastructure and industries.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 539 contacts → | ||||
Exact match “Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 529 contacts → | ||||
Exact match “Watershed is the enterprise sustainability platform.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 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 | |||||
| 25 | 507 contacts → | ||||
Exact match “PosiGen is the nation's leading residential solar and energy efficiency provider.” 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 “clean 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 3,164 clean tech companies based in the United States
See the full list, filter by size, metro and specialty, and access 46,817 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Clean 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 3,164 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 “clean 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 46,817 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.
Clean tech companies by metro
- Clean tech companies in New York127
- Clean tech companies in Houston107
- Clean tech companies in Chicago61
- Clean tech companies in San Francisco57
- Clean tech companies in Austin51
- Clean tech companies in Los Angeles50
- Clean tech companies in Denver48
- Clean tech companies in Washington46
- Clean tech companies in Boston44
- Clean tech companies in Atlanta43
- Clean tech companies in Dallas43
- Clean tech companies in San Diego42
- Clean tech companies in Miami33
- Clean tech companies in Portland27
- Clean tech companies in Orlando25
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “clean tech companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many clean tech companies are there based in the United States?
RevenueBase identified 3,164 company matches for clean 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?
GE Vernova tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most clean tech companies?
New York leads with 127 company records, followed by Houston (107) and Chicago (61).
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 46,817 professional contacts with verified work emails tracked across these 3,164 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 3,164 clean tech companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Clean tech companies by geography
- Clean tech companies based in Melbourne, Australia
- Clean tech companies based in Sydney, Australia
- Clean tech companies based in Belo Horizonte, Brazil
- Clean tech companies based in Campinas, Brazil
- Clean tech companies based in Curitiba, Brazil
- Clean tech companies based in Fortaleza, Brazil
- Clean tech companies based in Porto Alegre, Brazil
- Clean tech companies based in Rio De Janeiro, Brazil
- Clean tech companies based in Sao Paulo, Brazil
- Clean tech companies based in Calgary, Canada
- Clean tech companies based in Montreal, Canada
- Clean tech companies based in Toronto, Canada
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
- Clean tech companies based in Melbourne, Australia
- Clean tech companies based in Sydney, Australia
- Clean tech companies based in Belo Horizonte, Brazil
- Clean tech companies based in Campinas, Brazil
- Clean tech companies based in Curitiba, Brazil
- Clean tech companies based in Fortaleza, Brazil
Company intelligence · public preview
Top 25 clean 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 3,164 matching company records for clean tech companies based in the United States, with 121,084 tracked contacts and 46,817 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 clean 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 |  GE Vernovalinktree.comHQ: Boston, MA, United StatesReported employees: 10001+ | Boston, MA, United States | 10001+ | Exact match | 29,528 contacts → |
“GE Vernova is a purpose-built energy technology company on a mission to electrify to thrive and decarbonize the world.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  TRANEtrane.comHQ: Davidson, NC, United StatesReported employees: 10001+ | Davidson, NC, United States | 10001+ | Exact match | 10,272 contacts → |
“Trane is the building technology and energy solutions leader who deploys a depth and breadth of expertise, backgrounds, and perspectives to innovate new technologies and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  The AES Corporationaes.comHQ: Arlington, VA, United StatesReported employees: 5,001-10,000 | Arlington, VA, United States | 5,001-10,000 | Exact match | 5,387 contacts → |
“The world no longer thinks of energy as a matter of supply and demand.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Generacgenerac.comHQ: Waukesha, WI, United StatesReported employees: 5,001-10,000 | Waukesha, WI, United States | 5,001-10,000 | Exact match | 3,797 contacts → |
“Generac is the total energy solutions company powering a smarter world.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  FTIfaithtechinc.comHQ: Menasha, WI, United StatesReported employees: 1,001-5,000 | Menasha, WI, United States | 1,001-5,000 | Exact match | 2,741 contacts → |
“Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  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. | |||||
| 8 |  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. | |||||
| 9 |  GE Digitalge.comHQ: San Ramon, CA, United StatesReported employees: 1,001-5,000 | San Ramon, CA, United States | 1,001-5,000 | Exact match | 1,763 contacts → |
“At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Amerescoameresco.comHQ: Framingham, MA, United StatesReported employees: 1,001-5,000 | Framingham, MA, United States | 1,001-5,000 | Exact match | 1,383 contacts → |
“Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Community Dreams Foundationcdreams.org HQ: Orlando, FL, United StatesReported employees: 1,001-5,000 | Orlando, FL, United States | 1,001-5,000 | Exact match | 1,009 contacts → |
“We are a purpose-driven organization focused on empowering communities through clean energy, technology innovation, and collaborative partnerships.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Sunnova Energysunnova.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 906 contacts → |
“Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  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. | |||||
| 14 |  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. | |||||
| 15 |  Resource Innovationsresource-innovations.comHQ: Half Moon Bay, CA, United StatesReported employees: 501-1,000 | Half Moon Bay, CA, United States | 501-1,000 | Exact match | 733 contacts → |
“Resource Innovations (RI) is an energy transformation firm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  LUMIOlumio.comHQ: Lehi, UT, United StatesReported employees: 5,001-10,000 | Lehi, UT, United States | 5,001-10,000 | Exact match | 719 contacts → |
“We’re on a mission to make power personal.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Depcom Power, INCdepcompower.comHQ: Scottsdale, AZ, United StatesReported employees: 1,001-5,000 | Scottsdale, AZ, United States | 1,001-5,000 | Exact match | 624 contacts → |
“DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Nexampnexamp.comHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 607 contacts → |
“Nexamp is leading the transformation to the new energy economy with proven solutions for the deployment and operation of solar energy assets.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Apex Clean Energyapexcleanenergy.comHQ: Charlottesville, VA, United StatesReported employees: 201-500 | Charlottesville, VA, United States | 201-500 | Exact match | 594 contacts → |
“Apex Clean Energy was founded with a singular focus: to accelerate the shift to clean energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Corviascorvias.com HQ: Warwick, RI, United StatesReported employees: 501-1,000 | Warwick, RI, United States | 501-1,000 | Exact match | 573 contacts → |
“Our people are the heart and soul of our company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Louisville, KY, United StatesReported employees: 1,001-5,000 | Louisville, KY, United States | 1,001-5,000 | Exact match | 571 contacts → |
“We are your digital partner for sustainability and efficiency, ensuring Life Is On, for homes, buildings, data centers, infrastructure and industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Palmettoplm.toHQ: Charlotte, NC, United StatesReported employees: 201-500 | Charlotte, NC, United States | 201-500 | Exact match | 539 contacts → |
“Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Watershedwatershed.comHQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 529 contacts → |
“Watershed is the enterprise sustainability platform.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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. | |||||
| 25 |  Posigenposigen.comHQ: St. Rose, LA, United StatesReported employees: 501-1,000 | St. Rose, LA, United States | 501-1,000 | Exact match | 507 contacts → |
“PosiGen is the nation's leading residential solar and energy efficiency provider.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,164 company matches
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Clean 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
3,159 records in the displayed employee bands.
5 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 3,164 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 ↗
Clean tech companies by metro
- Clean tech companies in New York127
- Clean tech companies in Houston107
- Clean tech companies in Chicago61
- Clean tech companies in San Francisco57
- Clean tech companies in Austin51
- Clean tech companies in Los Angeles50
- Clean tech companies in Denver48
- Clean tech companies in Washington46
- Clean tech companies in Boston44
- Clean tech companies in Atlanta43
- Clean tech companies in Dallas43
- Clean tech companies in San Diego42
- Clean tech companies in Miami33
- Clean tech companies in Portland27
- Clean tech companies in Orlando25
Questions about this company list
What does Exact match mean for clean 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 clean tech companies did RevenueBase find based in the United States?
The saved snapshot records 3,164 matching company records, 121,084 tracked contacts and 46,817 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
Clean tech companies by geography
- Clean tech companies based in Melbourne, Australia
- Clean tech companies based in Sydney, Australia
- Clean tech companies based in Belo Horizonte, Brazil
- Clean tech companies based in Campinas, Brazil
- Clean tech companies based in Curitiba, Brazil
- Clean tech companies based in Fortaleza, Brazil
- Clean tech companies based in Porto Alegre, Brazil
- Clean tech companies based in Rio De Janeiro, Brazil
- Clean tech companies based in Sao Paulo, Brazil
- Clean tech companies based in Calgary, Canada
- Clean tech companies based in Montreal, Canada
- Clean tech companies based in Toronto, Canada
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 clean tech companies based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/clean-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
- Clean tech companies based in Melbourne, Australia
- Clean tech companies based in Sydney, Australia
- Clean tech companies based in Belo Horizonte, Brazil
- Clean tech companies based in Campinas, Brazil
- Clean tech companies based in Curitiba, Brazil
- Clean tech companies based in Fortaleza, Brazil
Company intelligence · public preview
Top 25 clean tech companies based in the United States
RevenueBase records 3,164 matching company records for clean tech companies based in the United States, with 121,084 tracked contacts and 46,817 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 clean 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 | GE Vernovalinktree.com HQ: Boston, MA, United StatesReported employees: 10001+ | Boston, MA, United States | 10001+ | Exact match | 29,528 contacts → |
“GE Vernova is a purpose-built energy technology company on a mission to electrify to thrive and decarbonize the world.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | TRANEtrane.com HQ: Davidson, NC, United StatesReported employees: 10001+ | Davidson, NC, United States | 10001+ | Exact match | 10,272 contacts → |
“Trane is the building technology and energy solutions leader who deploys a depth and breadth of expertise, backgrounds, and perspectives to innovate new technologies and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | The AES Corporationaes.com HQ: Arlington, VA, United StatesReported employees: 5,001-10,000 | Arlington, VA, United States | 5,001-10,000 | Exact match | 5,387 contacts → |
“The world no longer thinks of energy as a matter of supply and demand.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Generacgenerac.com HQ: Waukesha, WI, United StatesReported employees: 5,001-10,000 | Waukesha, WI, United States | 5,001-10,000 | Exact match | 3,797 contacts → |
“Generac is the total energy solutions company powering a smarter world.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | FTIfaithtechinc.com HQ: Menasha, WI, United StatesReported employees: 1,001-5,000 | Menasha, WI, United States | 1,001-5,000 | Exact match | 2,741 contacts → |
“Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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. | |||||
| 8 | 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. | |||||
| 9 | GE Digitalge.com HQ: San Ramon, CA, United StatesReported employees: 1,001-5,000 | San Ramon, CA, United States | 1,001-5,000 | Exact match | 1,763 contacts → |
“At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Amerescoameresco.com HQ: Framingham, MA, United StatesReported employees: 1,001-5,000 | Framingham, MA, United States | 1,001-5,000 | Exact match | 1,383 contacts → |
“Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Community Dreams Foundationcdreams.org HQ: Orlando, FL, United StatesReported employees: 1,001-5,000 | Orlando, FL, United States | 1,001-5,000 | Exact match | 1,009 contacts → |
“We are a purpose-driven organization focused on empowering communities through clean energy, technology innovation, and collaborative partnerships.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Sunnova Energysunnova.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 906 contacts → |
“Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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. | |||||
| 14 | 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. | |||||
| 15 | Resource Innovationsresource-innovations.com HQ: Half Moon Bay, CA, United StatesReported employees: 501-1,000 | Half Moon Bay, CA, United States | 501-1,000 | Exact match | 733 contacts → |
“Resource Innovations (RI) is an energy transformation firm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | LUMIOlumio.com HQ: Lehi, UT, United StatesReported employees: 5,001-10,000 | Lehi, UT, United States | 5,001-10,000 | Exact match | 719 contacts → |
“We’re on a mission to make power personal.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Depcom Power, INCdepcompower.com HQ: Scottsdale, AZ, United StatesReported employees: 1,001-5,000 | Scottsdale, AZ, United States | 1,001-5,000 | Exact match | 624 contacts → |
“DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Nexampnexamp.com HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 607 contacts → |
“Nexamp is leading the transformation to the new energy economy with proven solutions for the deployment and operation of solar energy assets.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Apex Clean Energyapexcleanenergy.com HQ: Charlottesville, VA, United StatesReported employees: 201-500 | Charlottesville, VA, United States | 201-500 | Exact match | 594 contacts → |
“Apex Clean Energy was founded with a singular focus: to accelerate the shift to clean energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Corviascorvias.com HQ: Warwick, RI, United StatesReported employees: 501-1,000 | Warwick, RI, United States | 501-1,000 | Exact match | 573 contacts → |
“Our people are the heart and soul of our company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Louisville, KY, United StatesReported employees: 1,001-5,000 | Louisville, KY, United States | 1,001-5,000 | Exact match | 571 contacts → |
“We are your digital partner for sustainability and efficiency, ensuring Life Is On, for homes, buildings, data centers, infrastructure and industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Palmettoplm.to HQ: Charlotte, NC, United StatesReported employees: 201-500 | Charlotte, NC, United States | 201-500 | Exact match | 539 contacts → |
“Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Watershedwatershed.com HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 529 contacts → |
“Watershed is the enterprise sustainability platform.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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. | |||||
| 25 | Posigenposigen.com HQ: St. Rose, LA, United StatesReported employees: 501-1,000 | St. Rose, LA, United States | 501-1,000 | Exact match | 507 contacts → |
“PosiGen is the nation's leading residential solar and energy efficiency provider.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,164 company matches
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Clean 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
3,159 records in the displayed employee bands.
5 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 3,164 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 ↗
Clean tech companies by metro
- Clean tech companies in New York127
- Clean tech companies in Houston107
- Clean tech companies in Chicago61
- Clean tech companies in San Francisco57
- Clean tech companies in Austin51
- Clean tech companies in Los Angeles50
- Clean tech companies in Denver48
- Clean tech companies in Washington46
- Clean tech companies in Boston44
- Clean tech companies in Atlanta43
- Clean tech companies in Dallas43
- Clean tech companies in San Diego42
- Clean tech companies in Miami33
- Clean tech companies in Portland27
- Clean tech companies in Orlando25
Questions about this company list
What does Exact match mean for clean 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 clean tech companies did RevenueBase find based in the United States?
The saved snapshot records 3,164 matching company records, 121,084 tracked contacts and 46,817 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 clean tech companies based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/clean-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
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- Clean tech companies based in Melbourne, Australia
- Clean tech companies based in Sydney, Australia
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- Clean tech companies based in Campinas, Brazil
- Clean tech companies based in Curitiba, Brazil
- Clean tech companies based in Fortaleza, Brazil