Company lists · Data refreshed September 2026
Top 23 Sustainable development nonprofits based in New York, United States
RevenueBase identified 64 sustainable development nonprofits headquartered in New York, United States as of September 2026 and tracks 1,899 professional contacts across them, including 1,020 with verified work emails. New York is the largest hub.
This list covers sustainable development nonprofits headquartered in New York, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 23 largest sustainable development nonprofits based in New York, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,352 contacts → | ||||
Partial evidence “We are Environmental Defense Fund, a leading environmental nonprofit focused on stabilizing the climate while helping build strong and healthy communities.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 185 contacts → | ||||
Indirect evidence “GrowNYC is a hands-on non-profit with a mission to empower all New Yorkers with equitable access to fresh, locally grown food and neighborhood green spaces, reduce waste, and care…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 66 contacts → | ||||
Partial evidence “Cafeteria Culture (CafCu), is an environmental education nonprofit working creatively with youth to achieve equitable zero waste, climate-smart school communities and a plastic…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 62 contacts → | ||||
Strong evidence “Global ESG Leadership Association (GELA) is a 501(c)(3) nonprofit organization registered in New York State, dedicated to advancing global youth leadership, promoting sustainable…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 15 contacts → | ||||
Indirect evidence “The Foundation for Renewable Energy and Environment (FREE) is a non-profit, international organization established to promote a better future based on energy, water and materials…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 12 contacts → | ||||
Strong evidence “TJBauman, LLC is a NYC sustainable development strategy and communications firm specializing in the market opportunities for advancing positive social impact and regenerative…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 11 contacts → | ||||
Indirect evidence “The Himalayan mountain range encompasses critical geostrategic locations, traversing several countries, cradling many cultures, ethnicities, and traditions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 5 contacts → | ||||
Partial evidence “The Sustainability Laboratory (The Lab) was established to research, develop, demonstrate, and facilitate the adoption of breakthrough sustainability practices, with the goal of…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 5 contacts → | ||||
Indirect evidence “Empowers Africa supports programs in the areas human empowerment, wildlife protection and land conservation in sub-Saharan Africa.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 5 contacts → | ||||
Indirect evidence “Unified Human Foundation is a non-profit.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 5 contacts → | ||||
Indirect evidence “Since 1970, Earth Day has been a catalyst for ongoing education, action, and change.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4 contacts → | ||||
Indirect evidence “Topo Finance is a team of innovators and visionaries committed to enabling all businesses, organizations, and individuals to leverage their finances as a force for creating a more…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Indirect evidence “The Grassy Creek Foundation was created in 2011.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3 contacts → | ||||
Partial evidence “Yansa is innovating a new model for empowering rural and indigenous communities to make use of their renewable energy resources as a means for fostering sustainable local…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 contacts → | ||||
Indirect evidence “Protecting Nature is a vital task for ensuring the well-being and prosperity of people and the planet.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2 contacts → | ||||
Partial evidence “Our Basic Idea was to create digital Tools for People and the Environment to shape a sustainable Future for the Planet and Communities all around the Globe.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1 contacts → | ||||
Indirect evidence “Anka is a global organization based in New York dedicated to ending poverty everywhere in all its forms.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1 contacts → | ||||
Indirect evidence “Founded in 1991, Nurture Nature Foundation (NNF) is dedicated to resolving the intensifying conflict between the critical goals of environmental protection and economic…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 contacts → | ||||
Indirect evidence “Continuum Partners.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 contacts → | ||||
Indirect evidence “Problem Since the dawn of civilization, we have dramatically improved our living conditions but we also have depleted Earth's limited resources, tipped over 9 interconnected Earth…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Indirect evidence “Honor Humanity Inc.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Strong evidence “The Center for Art Education and Sustainability (CAES), also known as the Sustainable Art School, is a 501(c)(3) nonprofit organization incorporated in the state of New York…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Partial evidence “BeSomeone is a volunteer lead and run organization based in New York City dedicated to bringing sustainable projects to places and people who need it most.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: sustainable development nonprofits. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names sustainable development nonprofits.
- Partial evidence
- Its own public description names part of sustainable development nonprofits, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name sustainable development nonprofits. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 23 of 64 sustainable development nonprofits based in New York, United States
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Sustainable development nonprofits based in New York, United States at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 64 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sustainable development nonprofits, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in New York, United States whose own description of what they do matches “sustainable development nonprofits”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sustainable development nonprofits), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among sustainable development nonprofits, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 1,020 across the full list. 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 22, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Sustainable development nonprofits by metro in the United States
- Sustainable development nonprofits in New York64
- Sustainable development nonprofits in Washington53
- Sustainable development nonprofits in Los Angeles42
- Sustainable development nonprofits in San Francisco32
- Sustainable development nonprofits in Miami30
- Sustainable development nonprofits in Atlanta28
- Sustainable development nonprofits in Seattle26
- Sustainable development nonprofits in Boston25
- Sustainable development nonprofits in Denver25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sustainable development nonprofits, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many sustainable development nonprofits are there based in New York, United States?
RevenueBase identified 64 sustainable development nonprofits headquartered in New York, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Environmental Defense Fund, headquartered in New York, tops this list with the largest team on record.
Which city has the most sustainable development nonprofits?
New York leads with 64 headquartered companies, followed by Washington (53) and Los Angeles (42).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,020 verified decision-maker contacts tracked across these 64 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.
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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 Smart Search, 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.
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