Company lists · Data refreshed September 2026
Top 25 Climate change organizations based in the United States
RevenueBase identified 1,376 company matches for climate change organizations associated with the United States as of September 2026 and tracks 22,089 professional contacts across them, including 7,322 with verified work emails. New York is the largest hub.
This list covers company matches for climate change organizations 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 change organizations based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,359 contacts → | ||||
Exact match “WRI works to improve people’s lives, protect and restore nature and stabilize the climate.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 1,352 contacts → | ||||
Exact match “We are Environmental Defense Fund, a leading environmental nonprofit focused on stabilizing the climate while helping build strong and healthy communities.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 1,069 contacts → | ||||
Exact match “At the Sierra Club, we believe in the power of togetherness.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 759 contacts → | ||||
Exact match “Climatebase is the community for climate & sustainability professionals, and the world's #1 platform for green jobs.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 368 contacts → | ||||
Exact match “Rare is a global leader in driving social change for people and nature.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 288 contacts → | ||||
Exact match “CPI is an analysis and advisory organization with deep expertise in finance and policy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 241 contacts → | ||||
Exact match “Ceres is a nonprofit advocacy organization working to accelerate the transition to a cleaner, more just, and resilient world.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 224 contacts → | ||||
Exact match “We are in the business of conservation, creating innovative solutions that drive nature-based action for climate protection, sustainable economies and vibrant communities.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 222 contacts → | ||||
Exact match “Sunrise is a movement of young people uniting to stop the climate crisis.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 221 contacts → | ||||
Exact match “Founded in 2007, Verra is a global mission-driven nonprofit organization that develops and manages the leading standards for climate and sustainable development.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 205 contacts → | ||||
Exact match “ClimateWorks Foundation is a catalyst for accelerating climate progress, driving bold solutions that benefit people and the planet.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 156 contacts → | ||||
Exact match “Woodwell Climate Research Center conducts science for solutions at the nexus of climate, people, and nature-solutions that are urgently needed to propel us toward a more…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 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 | |||||
| 14 | 144 contacts → | ||||
Exact match “EARTHDAY.ORG’s mission is to diversify, educate and activate the environmental movement worldwide.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 140 contacts → | ||||
Exact match “Ecology Action is an award-winning California 501(c)(3) non-profit that’s been inspiring sustainable community actions since 1970.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 127 contacts → | ||||
Exact match “SEI is an environmental nonprofit that builds leaders to accelerate climate solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 124 contacts → | ||||
Exact match “The NDC Partnership brings together 270 members, including more than 140 countries, developed and developing, and more than 110 institutions to create and deliver on ambitious…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 97 contacts → | ||||
Exact match “Founded in 1971, Greenpeace began when a small group of activists sailed from Vancouver to protest nuclear testing at Amchitka, Alaska.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 95 contacts → | ||||
Exact match “Protect Our Winters is a 501(c)(3) nonprofit that helps passionate outdoor people protect the places and experiences they love from climate change.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 93 contacts → | ||||
Exact match “Every day, we see more heartbreaking evidence of the damage being done to our planet: climate change, plastic pollution, wildlife disappearing forever.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 91 contacts → | ||||
Exact match “The American Council for an Energy-Efficient Economy a nonprofit research organization, develops policies to reduce energy waste and combat climate change.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 91 contacts → | ||||
Exact match “The Women and Climate community provides a joyful and safe space for women and nonbinary professionals from around the world to learn and talk about climate.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 83 contacts → | ||||
Exact match “Jupiter is the trusted leader in climate risk analytics for organizations looking to strengthen their climate resilience.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 83 contacts → | ||||
Exact match “Bridging The Gap brings people together to protect and restore the web of life on Earth and foster inclusive, thriving communities through environmental education, innovation, and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 82 contacts → | ||||
Exact match “Western Resource Advocates fights climate change and its impacts to sustain the environment, economy, and people of the West.” 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 change organizations”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,376 climate change organizations based in the United States
See the full list, filter by size, metro and specialty, and access 7,322 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Climate change organizations 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 1,376 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 change organizations” 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 7,322 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.
Climate change organizations by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “climate change organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many climate change organizations are there based in the United States?
RevenueBase identified 1,376 company matches for climate change organizations 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?
World Resources Institute tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most climate change organizations?
New York leads with 139 company records, followed by Washington (122) and San Francisco (76).
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 7,322 professional contacts with verified work emails tracked across these 1,376 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 1,376 climate change organizations based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Climate change organizations by geography
- Climate change organizations based in Toronto, Canada
- Climate change organizations based in Vancouver, Canada
- Climate change organizations based in Boston, United States
- Climate change organizations based in Los Angeles, United States
- Climate change organizations based in New York, United States
- Climate change organizations based in San Francisco, United States
- Climate change organizations based in Seattle, United States
- Climate change organizations based in Washington, United States
- Climate change organizations based in Argentina
- Climate change organizations based in Australia
- Climate change organizations based in Austria
- Climate change organizations based in Belgium
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 change organizations based in Toronto, Canada
- Climate change organizations based in Vancouver, Canada
- Climate change organizations based in Boston, United States
- Climate change organizations based in Los Angeles, United States
- Climate change organizations based in New York, United States
- Climate change organizations based in San Francisco, United States
Company intelligence · public preview
Top 25 climate change organizations based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,376 matching company records for climate change organizations based in the United States, with 22,089 tracked contacts and 7,322 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 change organizations 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 | World Resources Institutewri.org HQ: Washington, DC, United StatesReported employees: 1,001-5,000 | Washington, DC, United States | 1,001-5,000 | Exact match | 1,359 contacts → |
“WRI works to improve people’s lives, protect and restore nature and stabilize the climate.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Environmental Defense Fundedf.orgHQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 1,352 contacts → |
“We are Environmental Defense Fund, a leading environmental nonprofit focused on stabilizing the climate while helping build strong and healthy communities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sierra Clubsierraclub.org HQ: Oakland, CA, United StatesReported employees: 501-1,000 | Oakland, CA, United States | 501-1,000 | Exact match | 1,069 contacts → |
“At the Sierra Club, we believe in the power of togetherness.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Climatebaseclimatebase.orgHQ: San Francisco, CA, United StatesReported employees: Not recorded | San Francisco, CA, United States | Not recorded | Exact match | 759 contacts → |
“Climatebase is the community for climate & sustainability professionals, and the world's #1 platform for green jobs.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | RARErare.org HQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 368 contacts → |
“Rare is a global leader in driving social change for people and nature.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Climate Policy Initiativeclimatepolicyinitiative.orgHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 288 contacts → |
“CPI is an analysis and advisory organization with deep expertise in finance and policy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Ceres, INCceres.org HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 241 contacts → |
“Ceres is a nonprofit advocacy organization working to accelerate the transition to a cleaner, more just, and resilient world.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | The Conservation Fundconservationfund.org HQ: Arlington, VA, United StatesReported employees: 201-500 | Arlington, VA, United States | 201-500 | Exact match | 224 contacts → |
“We are in the business of conservation, creating innovative solutions that drive nature-based action for climate protection, sustainable economies and vibrant communities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sunrise Movementsunrisemovement.org HQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 222 contacts → |
“Sunrise is a movement of young people uniting to stop the climate crisis.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | VERRAverra.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 221 contacts → |
“Founded in 2007, Verra is a global mission-driven nonprofit organization that develops and manages the leading standards for climate and sustainable development.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Climateworks Foundationclimateworks.org HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 205 contacts → |
“ClimateWorks Foundation is a catalyst for accelerating climate progress, driving bold solutions that benefit people and the planet.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Woodwell Climate Research Centerwoodwellclimate.org HQ: Falmouth, MA, United StatesReported employees: 51-200 | Falmouth, MA, United States | 51-200 | Exact match | 156 contacts → |
“Woodwell Climate Research Center conducts science for solutions at the nexus of climate, people, and nature-solutions that are urgently needed to propel us toward a more…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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. | |||||
| 14 | earthday.orgearthday.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 144 contacts → |
“EARTHDAY.ORG’s mission is to diversify, educate and activate the environmental movement worldwide.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ecology Actionecoact.org HQ: Santa Cruz, CA, United StatesReported employees: 51-200 | Santa Cruz, CA, United States | 51-200 | Exact match | 140 contacts → |
“Ecology Action is an award-winning California 501(c)(3) non-profit that’s been inspiring sustainable community actions since 1970.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | SEIseiinc.org HQ: San Rafael, CA, United StatesReported employees: 51-200 | San Rafael, CA, United States | 51-200 | Exact match | 127 contacts → |
“SEI is an environmental nonprofit that builds leaders to accelerate climate solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | NDC Partnershipndcpartnership.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 124 contacts → |
“The NDC Partnership brings together 270 members, including more than 140 countries, developed and developing, and more than 110 institutions to create and deliver on ambitious…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Greenpeace USAgreenpeace.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 97 contacts → |
“Founded in 1971, Greenpeace began when a small group of activists sailed from Vancouver to protest nuclear testing at Amchitka, Alaska.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Protect OUR Wintersprotectourwinters.org HQ: Boulder, CO, United StatesReported employees: 11-50 | Boulder, CO, United States | 11-50 | Exact match | 95 contacts → |
“Protect Our Winters is a 501(c)(3) nonprofit that helps passionate outdoor people protect the places and experiences they love from climate change.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Environment Americaenvironmentamerica.org HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 93 contacts → |
“Every day, we see more heartbreaking evidence of the damage being done to our planet: climate change, plastic pollution, wildlife disappearing forever.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 91 contacts → |
“The American Council for an Energy-Efficient Economy a nonprofit research organization, develops policies to reduce energy waste and combat climate change.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Women And Climatewomenandclimate.co HQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 91 contacts → |
“The Women and Climate community provides a joyful and safe space for women and nonbinary professionals from around the world to learn and talk about climate.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Jupiter Intelligencejupiterintel.comHQ: San Mateo, CA, United StatesReported employees: 51-200 | San Mateo, CA, United States | 51-200 | Exact match | 83 contacts → |
“Jupiter is the trusted leader in climate risk analytics for organizations looking to strengthen their climate resilience.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Bridging The GAPbridgingthegap.org HQ: Kansas City, MO, United StatesReported employees: 11-50 | Kansas City, MO, United States | 11-50 | Exact match | 83 contacts → |
“Bridging The Gap brings people together to protect and restore the web of life on Earth and foster inclusive, thriving communities through environmental education, innovation, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Western Resource Advocateswesternresourceadvocates.org HQ: Boulder, CO, United StatesReported employees: 51-200 | Boulder, CO, United States | 51-200 | Exact match | 82 contacts → |
“Western Resource Advocates fights climate change and its impacts to sustain the environment, economy, and people of the West.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,376 company matches
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Climate change organizations: 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
1,376 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,376 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 ↗
Climate change organizations by metro
Questions about this company list
What does Exact match mean for climate change organizations?
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 change organizations did RevenueBase find based in the United States?
The saved snapshot records 1,376 matching company records, 22,089 tracked contacts and 7,322 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 change organizations by geography
- Climate change organizations based in Toronto, Canada
- Climate change organizations based in Vancouver, Canada
- Climate change organizations based in Boston, United States
- Climate change organizations based in Los Angeles, United States
- Climate change organizations based in New York, United States
- Climate change organizations based in San Francisco, United States
- Climate change organizations based in Seattle, United States
- Climate change organizations based in Washington, United States
- Climate change organizations based in Argentina
- Climate change organizations based in Australia
- Climate change organizations based in Austria
- Climate change organizations based in Belgium
Cite this list
RevenueBase Data Team. Top 25 climate change organizations based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/climate-change-organizations/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 change organizations based in Toronto, Canada
- Climate change organizations based in Vancouver, Canada
- Climate change organizations based in Boston, United States
- Climate change organizations based in Los Angeles, United States
- Climate change organizations based in New York, United States
- Climate change organizations based in San Francisco, United States
Company intelligence · public preview
Top 25 climate change organizations based in the United States
RevenueBase records 1,376 matching company records for climate change organizations based in the United States, with 22,089 tracked contacts and 7,322 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 change organizations 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 | World Resources Institutewri.org HQ: Washington, DC, United StatesReported employees: 1,001-5,000 | Washington, DC, United States | 1,001-5,000 | Exact match | 1,359 contacts → |
“WRI works to improve people’s lives, protect and restore nature and stabilize the climate.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Environmental Defense Fundedf.org HQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 1,352 contacts → |
“We are Environmental Defense Fund, a leading environmental nonprofit focused on stabilizing the climate while helping build strong and healthy communities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sierra Clubsierraclub.org HQ: Oakland, CA, United StatesReported employees: 501-1,000 | Oakland, CA, United States | 501-1,000 | Exact match | 1,069 contacts → |
“At the Sierra Club, we believe in the power of togetherness.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Climatebaseclimatebase.org HQ: San Francisco, CA, United StatesReported employees: Not recorded | San Francisco, CA, United States | Not recorded | Exact match | 759 contacts → |
“Climatebase is the community for climate & sustainability professionals, and the world's #1 platform for green jobs.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | RARErare.org HQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 368 contacts → |
“Rare is a global leader in driving social change for people and nature.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Climate Policy Initiativeclimatepolicyinitiative.org HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 288 contacts → |
“CPI is an analysis and advisory organization with deep expertise in finance and policy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Ceres, INCceres.org HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 241 contacts → |
“Ceres is a nonprofit advocacy organization working to accelerate the transition to a cleaner, more just, and resilient world.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | The Conservation Fundconservationfund.org HQ: Arlington, VA, United StatesReported employees: 201-500 | Arlington, VA, United States | 201-500 | Exact match | 224 contacts → |
“We are in the business of conservation, creating innovative solutions that drive nature-based action for climate protection, sustainable economies and vibrant communities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sunrise Movementsunrisemovement.org HQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 222 contacts → |
“Sunrise is a movement of young people uniting to stop the climate crisis.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | VERRAverra.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 221 contacts → |
“Founded in 2007, Verra is a global mission-driven nonprofit organization that develops and manages the leading standards for climate and sustainable development.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Climateworks Foundationclimateworks.org HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 205 contacts → |
“ClimateWorks Foundation is a catalyst for accelerating climate progress, driving bold solutions that benefit people and the planet.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Woodwell Climate Research Centerwoodwellclimate.org HQ: Falmouth, MA, United StatesReported employees: 51-200 | Falmouth, MA, United States | 51-200 | Exact match | 156 contacts → |
“Woodwell Climate Research Center conducts science for solutions at the nexus of climate, people, and nature-solutions that are urgently needed to propel us toward a more…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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. | |||||
| 14 | earthday.orgearthday.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 144 contacts → |
“EARTHDAY.ORG’s mission is to diversify, educate and activate the environmental movement worldwide.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ecology Actionecoact.org HQ: Santa Cruz, CA, United StatesReported employees: 51-200 | Santa Cruz, CA, United States | 51-200 | Exact match | 140 contacts → |
“Ecology Action is an award-winning California 501(c)(3) non-profit that’s been inspiring sustainable community actions since 1970.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | SEIseiinc.org HQ: San Rafael, CA, United StatesReported employees: 51-200 | San Rafael, CA, United States | 51-200 | Exact match | 127 contacts → |
“SEI is an environmental nonprofit that builds leaders to accelerate climate solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | NDC Partnershipndcpartnership.org HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 124 contacts → |
“The NDC Partnership brings together 270 members, including more than 140 countries, developed and developing, and more than 110 institutions to create and deliver on ambitious…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Greenpeace USAgreenpeace.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 97 contacts → |
“Founded in 1971, Greenpeace began when a small group of activists sailed from Vancouver to protest nuclear testing at Amchitka, Alaska.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Protect OUR Wintersprotectourwinters.org HQ: Boulder, CO, United StatesReported employees: 11-50 | Boulder, CO, United States | 11-50 | Exact match | 95 contacts → |
“Protect Our Winters is a 501(c)(3) nonprofit that helps passionate outdoor people protect the places and experiences they love from climate change.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Environment Americaenvironmentamerica.org HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 93 contacts → |
“Every day, we see more heartbreaking evidence of the damage being done to our planet: climate change, plastic pollution, wildlife disappearing forever.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 91 contacts → |
“The American Council for an Energy-Efficient Economy a nonprofit research organization, develops policies to reduce energy waste and combat climate change.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Women And Climatewomenandclimate.co HQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 91 contacts → |
“The Women and Climate community provides a joyful and safe space for women and nonbinary professionals from around the world to learn and talk about climate.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Jupiter Intelligencejupiterintel.com HQ: San Mateo, CA, United StatesReported employees: 51-200 | San Mateo, CA, United States | 51-200 | Exact match | 83 contacts → |
“Jupiter is the trusted leader in climate risk analytics for organizations looking to strengthen their climate resilience.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Bridging The GAPbridgingthegap.org HQ: Kansas City, MO, United StatesReported employees: 11-50 | Kansas City, MO, United States | 11-50 | Exact match | 83 contacts → |
“Bridging The Gap brings people together to protect and restore the web of life on Earth and foster inclusive, thriving communities through environmental education, innovation, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Western Resource Advocateswesternresourceadvocates.org HQ: Boulder, CO, United StatesReported employees: 51-200 | Boulder, CO, United States | 51-200 | Exact match | 82 contacts → |
“Western Resource Advocates fights climate change and its impacts to sustain the environment, economy, and people of the West.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,376 company matches
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Climate change organizations: 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
1,376 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,376 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 ↗
Climate change organizations by metro
Questions about this company list
What does Exact match mean for climate change organizations?
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 change organizations did RevenueBase find based in the United States?
The saved snapshot records 1,376 matching company records, 22,089 tracked contacts and 7,322 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 change organizations by geography
- Climate change organizations based in Toronto, Canada
- Climate change organizations based in Vancouver, Canada
- Climate change organizations based in Boston, United States
- Climate change organizations based in Los Angeles, United States
- Climate change organizations based in New York, United States
- Climate change organizations based in San Francisco, United States
- Climate change organizations based in Seattle, United States
- Climate change organizations based in Washington, United States
- Climate change organizations based in Argentina
- Climate change organizations based in Australia
- Climate change organizations based in Austria
- Climate change organizations based in Belgium
Cite this list
RevenueBase Data Team. Top 25 climate change organizations based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/climate-change-organizations/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Climate change organizations based in Toronto, Canada
- Climate change organizations based in Vancouver, Canada
- Climate change organizations based in Boston, United States
- Climate change organizations based in Los Angeles, United States
- Climate change organizations based in New York, United States
- Climate change organizations based in San Francisco, United States