Company lists · Data refreshed November 2026
Top 25 Green nonprofits based in the United States
RevenueBase identified 2,783 company matches for green nonprofits associated with the United States as of November 2026 and tracks 49,957 professional contacts across them, including 17,163 with verified work emails. New York is the largest hub.
This list covers company matches for green nonprofits 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 November 6, 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 green nonprofits based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,991 contacts → | ||||
Exact match “Air, water, food, shelter, income: nature sustains every aspect of our lives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,622 contacts → | ||||
Exact match “Since 1987, Conservation International has worked to spotlight and secure the critical benefits that nature provides to humanity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 1,430 contacts → | ||||
Exact match “Casa Familiar is a primary/secondary education company based out of 501 Atrisco Dr Sw, Albuquerque, New Mexico, United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 1,155 contacts → | ||||
Exact match “The Powur Mission: Accelerate the adoption of clean energy worldwide We're empowering our community of homeowners and advisors to thrive in the global shift to sustainable energy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 1,011 contacts → | ||||
Exact match “NRDC is the nation's most effective environmental action organization.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 899 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 880 contacts → | ||||
Exact match “The Student Conservation Association (SCA) is the largest provider of hands-on environmental conservation programs for youth and adults.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 575 contacts → | ||||
Exact match “Trust for Public Land (TPL) is a national nonprofit that works to connect everyone to the benefits and joys of the outdoors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 575 contacts → | ||||
Exact match “Mass Audubon is the largest nature-based conservation organization in New England.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 560 contacts → | ||||
Exact match “The U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 438 contacts → | ||||
Exact match “Audubon Nature Institute is a unique private, not-for-profit organization with an expansive collection of world-class attractions, conservation programs, facilities and wilderness…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 430 contacts → | ||||
Exact match “The mission of the Appalachian Mountain Club is to foster the protection, enjoyment, and understanding of the outdoors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 415 contacts → | ||||
Exact match “At Providencia we are focused on positively impacting the communities where we operate, the lives of vulnerable and underserved populations around the world, and the health of our…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 396 contacts → | ||||
Exact match “Rare is a global leader in driving social change for people and nature.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 356 contacts → | ||||
Exact match “We are an organization committed to public service, with a “can do” attitude to make Kalamazoo a livable and sustainable community for all citizens.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 306 contacts → | ||||
Exact match “Whitewater is a 501(c)(3) nonprofit and outdoor lifestyle brand that facilitates outdoor access by lowering barriers and inspiring people to get outside.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 258 contacts → | ||||
Exact match “Conservation Legacy is a national organization dedicated to supporting locally based conservation service programs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 256 contacts → | ||||
Exact match “Our mission is to use rigorous, independent science to solve our planet's most pressing problems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 248 contacts → | ||||
Exact match “Dixon Golf, an Ariz.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 245 contacts → | ||||
Exact match “We are creating a more sustainable and better earth through solar energy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 244 contacts → | ||||
Exact match “Montana Conservation Corps is a nonprofit organization whose mission is to inspire young people, through hands-on conservation service to be leaders, stewards of the land, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 238 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 237 contacts → | ||||
Exact match “Seaside Sustainability is a nationally recognized, award-winning 501(c)3 charitable organization dedicated to community engagement, education and environmental conservation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 224 contacts → | ||||
Exact match “CEE is a community-based clean energy nonprofit with special expertise in energy efficiency that stretches back 40 years.” Recorded in the RevenueBase company graph · Nov 6, 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 “green nonprofits”. 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 2,783 green nonprofits based in the United States
See the full list, filter by size, metro and specialty, and access 17,163 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Green nonprofits based in the United States at a glance
As of Nov 6, 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 2,783 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 “green nonprofits” 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 17,163 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 November 6, 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.
Green nonprofits by metro
- Green nonprofits in New York115
- Green nonprofits in Los Angeles78
- Green nonprofits in Washington66
- Green nonprofits in San Francisco52
- Green nonprofits in Portland43
- Green nonprofits in Seattle39
- Green nonprofits in Atlanta37
- Green nonprofits in Chicago37
- Green nonprofits in Denver36
- Green nonprofits in Austin34
- Green nonprofits in San Diego32
- Green nonprofits in Miami27
- Green nonprofits in Boston26
- Green nonprofits in Boulder25
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 “green nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many green nonprofits are there based in the United States?
RevenueBase identified 2,783 company matches for green nonprofits associated with the United States as of November 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?
The Nature Conservancy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most green nonprofits?
New York leads with 115 company records, followed by Los Angeles (78) and Washington (66).
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 17,163 professional contacts with verified work emails tracked across these 2,783 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,783 green nonprofits based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Green nonprofits by geography
- Green nonprofits based in Melbourne, Australia
- Green nonprofits based in Sydney, Australia
- Green nonprofits based in Sao Paulo, Brazil
- Green nonprofits based in Montreal, Canada
- Green nonprofits based in Ottawa, Canada
- Green nonprofits based in Toronto, Canada
- Green nonprofits based in Vancouver, Canada
- Green nonprofits based in Paris, France
- Green nonprofits based in Berlin, Germany
- Green nonprofits based in Hamburg, Germany
- Green nonprofits based in Bangalore, India
- Green nonprofits based in Mumbai, India
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
- Green nonprofits based in Melbourne, Australia
- Green nonprofits based in Sydney, Australia
- Green nonprofits based in Sao Paulo, Brazil
- Green nonprofits based in Montreal, Canada
- Green nonprofits based in Ottawa, Canada
- Green nonprofits based in Toronto, Canada
Company intelligence · public preview
Top 25 green nonprofits 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 2,783 matching company records for green nonprofits based in the United States, with 49,957 tracked contacts and 17,163 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: November 6, 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 green nonprofits 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 |  The Nature Conservancynature.orgHQ: Arlington, NC, United StatesReported employees: 5,001-10,000 | Arlington, NC, United States | 5,001-10,000 | Exact match | 6,991 contacts → |
“Air, water, food, shelter, income: nature sustains every aspect of our lives.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Conservation Internationalconservation.orgHQ: Arlington, VA, United StatesReported employees: 501-1,000 | Arlington, VA, United States | 501-1,000 | Exact match | 1,622 contacts → |
“Since 1987, Conservation International has worked to spotlight and secure the critical benefits that nature provides to humanity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Casa Familiarcasafamiliar.org HQ: Albuquerque, NM, United StatesReported employees: Not recorded | Albuquerque, NM, United States | Not recorded | Exact match | 1,430 contacts → |
“Casa Familiar is a primary/secondary education company based out of 501 Atrisco Dr Sw, Albuquerque, New Mexico, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Powur, PBCpowur.comHQ: San Diego, United StatesReported employees: Not recorded | San Diego, United States | Not recorded | Exact match | 1,155 contacts → |
“The Powur Mission: Accelerate the adoption of clean energy worldwide We're empowering our community of homeowners and advisors to thrive in the global shift to sustainable energy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 1,011 contacts → |
“NRDC is the nation's most effective environmental action organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Franklin Energyfranklinenergy.comHQ: Port Washington, WI, United StatesReported employees: 1,001-5,000 | Port Washington, WI, United States | 1,001-5,000 | Exact match | 899 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Student Conservation Associationthesca.orgHQ: Arlington, WA, United StatesReported employees: 201-500 | Arlington, WA, United States | 201-500 | Exact match | 880 contacts → |
“The Student Conservation Association (SCA) is the largest provider of hands-on environmental conservation programs for youth and adults.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Trust For Public Landtpl.orgHQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 575 contacts → |
“Trust for Public Land (TPL) is a national nonprofit that works to connect everyone to the benefits and joys of the outdoors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Mass Audubonmassaudubon.orgHQ: Lincoln, MA, United StatesReported employees: 201-500 | Lincoln, MA, United States | 201-500 | Exact match | 575 contacts → |
“Mass Audubon is the largest nature-based conservation organization in New England.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  U.S. Green Building Councilusgbc.orgHQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 560 contacts → |
“The U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Audubon Nature Instituteaudubonnatureinstitute.orgHQ: New Orleans, LA, United StatesReported employees: 201-500 | New Orleans, LA, United States | 201-500 | Exact match | 438 contacts → |
“Audubon Nature Institute is a unique private, not-for-profit organization with an expansive collection of world-class attractions, conservation programs, facilities and wilderness…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Appalachian Mountain Cluboutdoors.orgHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 430 contacts → |
“The mission of the Appalachian Mountain Club is to foster the protection, enjoyment, and understanding of the outdoors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  The Providencia Grouptheprovidenciagroup.comHQ: Ashburn, VA, United StatesReported employees: 201-500 | Ashburn, VA, United States | 201-500 | Exact match | 415 contacts → |
“At Providencia we are focused on positively impacting the communities where we operate, the lives of vulnerable and underserved populations around the world, and the health of our…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  RARErare.orgHQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 396 contacts → |
“Rare is a global leader in driving social change for people and nature.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  City Of Kalamazookalamazoocity.orgHQ: Kalamazoo, MI, United StatesReported employees: 501-1,000 | Kalamazoo, MI, United States | 501-1,000 | Exact match | 356 contacts → |
“We are an organization committed to public service, with a “can do” attitude to make Kalamazoo a livable and sustainable community for all citizens.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Whitewaterwhitewater.orgHQ: Charlotte, NC, United StatesReported employees: 501-1,000 | Charlotte, NC, United States | 501-1,000 | Exact match | 306 contacts → |
“Whitewater is a 501(c)(3) nonprofit and outdoor lifestyle brand that facilitates outdoor access by lowering barriers and inspiring people to get outside.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Conservation Legacyconservationlegacy.orgHQ: Durango, CO, United StatesReported employees: 51-200 | Durango, CO, United States | 51-200 | Exact match | 258 contacts → |
“Conservation Legacy is a national organization dedicated to supporting locally based conservation service programs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Union Of Concerned Scientistsucsusa.orgHQ: Cambridge, MA, United StatesReported employees: 201-500 | Cambridge, MA, United States | 201-500 | Exact match | 256 contacts → |
“Our mission is to use rigorous, independent science to solve our planet's most pressing problems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Dixon Golf, INCdixongolf.comHQ: Gilbert, AZ, United StatesReported employees: 201-500 | Gilbert, AZ, United States | 201-500 | Exact match | 248 contacts → |
“Dixon Golf, an Ariz.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Better Earthbetterearth.solarHQ: Tampa, FL, United StatesReported employees: 201-500 | Tampa, FL, United States | 201-500 | Exact match | 245 contacts → |
“We are creating a more sustainable and better earth through solar energy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Montana Conservation Corpsmtcorps.orgHQ: Bozeman, MT, United StatesReported employees: Not recorded | Bozeman, MT, United States | Not recorded | Exact match | 244 contacts → |
“Montana Conservation Corps is a nonprofit organization whose mission is to inspire young people, through hands-on conservation service to be leaders, stewards of the land, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Ceres, INCceres.orgHQ: 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  The Conservation Fundconservationfund.orgHQ: Arlington, VA, United StatesReported employees: 201-500 | Arlington, VA, United States | 201-500 | Exact match | 238 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Seaside Sustainabilityseasidesustainability.orgHQ: Gloucester, MA, United StatesReported employees: 51-200 | Gloucester, MA, United States | 51-200 | Exact match | 237 contacts → |
“Seaside Sustainability is a nationally recognized, award-winning 501(c)3 charitable organization dedicated to community engagement, education and environmental conservation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Center For Energy And Environmentmncee.orgHQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 224 contacts → |
“CEE is a community-based clean energy nonprofit with special expertise in energy efficiency that stretches back 40 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,783 company matches
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Green nonprofits: dataset insights
November 6, 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
2,770 records in the displayed employee bands.
13 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 2,783 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: November 6, 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 ↗
Green nonprofits by metro
- Green nonprofits in New York115
- Green nonprofits in Los Angeles78
- Green nonprofits in Washington66
- Green nonprofits in San Francisco52
- Green nonprofits in Portland43
- Green nonprofits in Seattle39
- Green nonprofits in Atlanta37
- Green nonprofits in Chicago37
- Green nonprofits in Denver36
- Green nonprofits in Austin34
- Green nonprofits in San Diego32
- Green nonprofits in Miami27
- Green nonprofits in Boston26
- Green nonprofits in Boulder25
Questions about this company list
What does Exact match mean for green nonprofits?
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 green nonprofits did RevenueBase find based in the United States?
The saved snapshot records 2,783 matching company records, 49,957 tracked contacts and 17,163 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: November 6, 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
Green nonprofits by geography
- Green nonprofits based in Melbourne, Australia
- Green nonprofits based in Sydney, Australia
- Green nonprofits based in Sao Paulo, Brazil
- Green nonprofits based in Montreal, Canada
- Green nonprofits based in Ottawa, Canada
- Green nonprofits based in Toronto, Canada
- Green nonprofits based in Vancouver, Canada
- Green nonprofits based in Paris, France
- Green nonprofits based in Berlin, Germany
- Green nonprofits based in Hamburg, Germany
- Green nonprofits based in Bangalore, India
- Green nonprofits based in Mumbai, India
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 green nonprofits based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/green-nonprofits/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
- Green nonprofits based in Melbourne, Australia
- Green nonprofits based in Sydney, Australia
- Green nonprofits based in Sao Paulo, Brazil
- Green nonprofits based in Montreal, Canada
- Green nonprofits based in Ottawa, Canada
- Green nonprofits based in Toronto, Canada
Company intelligence · public preview
Top 25 green nonprofits based in the United States
RevenueBase records 2,783 matching company records for green nonprofits based in the United States, with 49,957 tracked contacts and 17,163 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: November 6, 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 green nonprofits 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 | The Nature Conservancynature.org HQ: Arlington, NC, United StatesReported employees: 5,001-10,000 | Arlington, NC, United States | 5,001-10,000 | Exact match | 6,991 contacts → |
“Air, water, food, shelter, income: nature sustains every aspect of our lives.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Conservation Internationalconservation.org HQ: Arlington, VA, United StatesReported employees: 501-1,000 | Arlington, VA, United States | 501-1,000 | Exact match | 1,622 contacts → |
“Since 1987, Conservation International has worked to spotlight and secure the critical benefits that nature provides to humanity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Casa Familiarcasafamiliar.org HQ: Albuquerque, NM, United StatesReported employees: Not recorded | Albuquerque, NM, United States | Not recorded | Exact match | 1,430 contacts → |
“Casa Familiar is a primary/secondary education company based out of 501 Atrisco Dr Sw, Albuquerque, New Mexico, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Powur, PBCpowur.com HQ: San Diego, United StatesReported employees: Not recorded | San Diego, United States | Not recorded | Exact match | 1,155 contacts → |
“The Powur Mission: Accelerate the adoption of clean energy worldwide We're empowering our community of homeowners and advisors to thrive in the global shift to sustainable energy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 1,011 contacts → |
“NRDC is the nation's most effective environmental action organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 | 899 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Student Conservation Associationthesca.org HQ: Arlington, WA, United StatesReported employees: 201-500 | Arlington, WA, United States | 201-500 | Exact match | 880 contacts → |
“The Student Conservation Association (SCA) is the largest provider of hands-on environmental conservation programs for youth and adults.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Trust For Public Landtpl.org HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 575 contacts → |
“Trust for Public Land (TPL) is a national nonprofit that works to connect everyone to the benefits and joys of the outdoors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Mass Audubonmassaudubon.org HQ: Lincoln, MA, United StatesReported employees: 201-500 | Lincoln, MA, United States | 201-500 | Exact match | 575 contacts → |
“Mass Audubon is the largest nature-based conservation organization in New England.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | U.S. Green Building Councilusgbc.org HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 560 contacts → |
“The U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Audubon Nature Instituteaudubonnatureinstitute.org HQ: New Orleans, LA, United StatesReported employees: 201-500 | New Orleans, LA, United States | 201-500 | Exact match | 438 contacts → |
“Audubon Nature Institute is a unique private, not-for-profit organization with an expansive collection of world-class attractions, conservation programs, facilities and wilderness…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Appalachian Mountain Cluboutdoors.org HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 430 contacts → |
“The mission of the Appalachian Mountain Club is to foster the protection, enjoyment, and understanding of the outdoors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | The Providencia Grouptheprovidenciagroup.com HQ: Ashburn, VA, United StatesReported employees: 201-500 | Ashburn, VA, United States | 201-500 | Exact match | 415 contacts → |
“At Providencia we are focused on positively impacting the communities where we operate, the lives of vulnerable and underserved populations around the world, and the health of our…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | RARErare.org HQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 396 contacts → |
“Rare is a global leader in driving social change for people and nature.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | City Of Kalamazookalamazoocity.org HQ: Kalamazoo, MI, United StatesReported employees: 501-1,000 | Kalamazoo, MI, United States | 501-1,000 | Exact match | 356 contacts → |
“We are an organization committed to public service, with a “can do” attitude to make Kalamazoo a livable and sustainable community for all citizens.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Whitewaterwhitewater.org HQ: Charlotte, NC, United StatesReported employees: 501-1,000 | Charlotte, NC, United States | 501-1,000 | Exact match | 306 contacts → |
“Whitewater is a 501(c)(3) nonprofit and outdoor lifestyle brand that facilitates outdoor access by lowering barriers and inspiring people to get outside.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Conservation Legacyconservationlegacy.org HQ: Durango, CO, United StatesReported employees: 51-200 | Durango, CO, United States | 51-200 | Exact match | 258 contacts → |
“Conservation Legacy is a national organization dedicated to supporting locally based conservation service programs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Union Of Concerned Scientistsucsusa.org HQ: Cambridge, MA, United StatesReported employees: 201-500 | Cambridge, MA, United States | 201-500 | Exact match | 256 contacts → |
“Our mission is to use rigorous, independent science to solve our planet's most pressing problems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Dixon Golf, INCdixongolf.com HQ: Gilbert, AZ, United StatesReported employees: 201-500 | Gilbert, AZ, United States | 201-500 | Exact match | 248 contacts → |
“Dixon Golf, an Ariz.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Better Earthbetterearth.solar HQ: Tampa, FL, United StatesReported employees: 201-500 | Tampa, FL, United States | 201-500 | Exact match | 245 contacts → |
“We are creating a more sustainable and better earth through solar energy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Montana Conservation Corpsmtcorps.org HQ: Bozeman, MT, United StatesReported employees: Not recorded | Bozeman, MT, United States | Not recorded | Exact match | 244 contacts → |
“Montana Conservation Corps is a nonprofit organization whose mission is to inspire young people, through hands-on conservation service to be leaders, stewards of the land, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | The Conservation Fundconservationfund.org HQ: Arlington, VA, United StatesReported employees: 201-500 | Arlington, VA, United States | 201-500 | Exact match | 238 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Seaside Sustainabilityseasidesustainability.org HQ: Gloucester, MA, United StatesReported employees: 51-200 | Gloucester, MA, United States | 51-200 | Exact match | 237 contacts → |
“Seaside Sustainability is a nationally recognized, award-winning 501(c)3 charitable organization dedicated to community engagement, education and environmental conservation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Center For Energy And Environmentmncee.org HQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 224 contacts → |
“CEE is a community-based clean energy nonprofit with special expertise in energy efficiency that stretches back 40 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,783 company matches
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Green nonprofits: dataset insights
November 6, 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
2,770 records in the displayed employee bands.
13 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 2,783 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: November 6, 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 ↗
Green nonprofits by metro
- Green nonprofits in New York115
- Green nonprofits in Los Angeles78
- Green nonprofits in Washington66
- Green nonprofits in San Francisco52
- Green nonprofits in Portland43
- Green nonprofits in Seattle39
- Green nonprofits in Atlanta37
- Green nonprofits in Chicago37
- Green nonprofits in Denver36
- Green nonprofits in Austin34
- Green nonprofits in San Diego32
- Green nonprofits in Miami27
- Green nonprofits in Boston26
- Green nonprofits in Boulder25
Questions about this company list
What does Exact match mean for green nonprofits?
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 green nonprofits did RevenueBase find based in the United States?
The saved snapshot records 2,783 matching company records, 49,957 tracked contacts and 17,163 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: November 6, 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
Green nonprofits by geography
- Green nonprofits based in Melbourne, Australia
- Green nonprofits based in Sydney, Australia
- Green nonprofits based in Sao Paulo, Brazil
- Green nonprofits based in Montreal, Canada
- Green nonprofits based in Ottawa, Canada
- Green nonprofits based in Toronto, Canada
- Green nonprofits based in Vancouver, Canada
- Green nonprofits based in Paris, France
- Green nonprofits based in Berlin, Germany
- Green nonprofits based in Hamburg, Germany
- Green nonprofits based in Bangalore, India
- Green nonprofits based in Mumbai, India
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 green nonprofits based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/green-nonprofits/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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