Company lists · Data refreshed November 2026

Top 25 Bird conservation nonprofits based in the United States

RevenueBase identified 391 company matches for bird conservation nonprofits associated with the United States as of November 2026 and tracks 8,050 professional contacts across them, including 3,381 with verified work emails. New York is the largest hub.

This list covers company matches for bird conservation 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
391Companies
8,050Contacts tracked
3,381Verified emails
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The 25 largest bird conservation nonprofits based in the United States

Ranked by team size
Top 25 of 391 company matches for bird conservation nonprofits based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMemphis, TN, United StatesHQ recorded Nov 6, 2026501-1,0001,131 contacts →

Exact match

“Ducks Unlimited is the world's leader in wetlands and waterfowl conservation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, DC, United StatesHQ recorded Nov 6, 2026501-1,000953 contacts →

Exact match

“The National Audubon Society protects birds and the places they need, today and tomorrow, throughout the Americas using science, advocacy, education, and on-the-ground…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchReston, VA, United StatesHQ recorded Nov 6, 2026201-500622 contacts →

Exact match

“As America's largest non-profit conservation organization, the National Wildlife Federation works closely with those who span the social and political spectrum, but who are…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLincoln, MA, United StatesHQ recorded Nov 6, 2026201-500575 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
5Exact matchSt. Paul, MN, United StatesHQ recorded Nov 6, 2026201-500353 contacts →

Exact match

“Pheasants Forever and Quail Forever make up the nation's largest nonprofit organization dedicated to upland habitat conservation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchTucson, AZ, United StatesHQ recorded Nov 6, 202651-200237 contacts →

Exact match

“At the Center for Biological Diversity, we believe that the welfare of human beings is deeply linked to nature, to the existence in our world of a vast diversity of wild animals…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWashington, CO, United StatesHQ recorded Nov 6, 202651-200219 contacts →

Exact match

“Defenders of Wildlife is dedicated to the protection of all native animals and plants in their natural communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchPetaluma, CA, United StatesHQ recorded Nov 6, 202651-200159 contacts →

Exact match

“Point Blue Conservation Science (Point Blue) is dedicated to conserving birds, other wildlife, and ecosystems through innovative scientific research, restoration, outreach and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchThe Plains, VA, United StatesHQ recorded Nov 6, 202651-200142 contacts →

Exact match

“American Bird Conservancy (ABC) takes bold action to conserve wild birds and their habitats throughout the Americas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchPittsburgh, PA, United StatesHQ recorded Nov 6, 202651-20092 contacts →

Exact match

“The National Aviary is America’s only independent indoor nonprofit zoo dedicated exclusively to birds.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchFort Collins, CO, United StatesHQ recorded Nov 6, 202651-20084 contacts →

Exact match

“Connecting people, birds, and land Mission: conserving birds and their habitats through science, education, and land stewardship Bird Conservancy of the Rockies conserves birds…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchManomet, MA, United StatesHQ recorded Nov 6, 202611-5081 contacts →

Exact match

“Manomet is a science-driven conservation organization with deep roots in bird banding.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-5077 contacts →

Exact match

“Founded in 2002, Wildlife Conservation Network (WCN) is dedicated to protecting endangered species and preserving their natural habitats.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPortland, OR, United StatesHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“Oregon wouldn’t be Oregon without Bird Alliance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBoise, ID, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“For over 50 years, The Peregrine Fund has worked to conserve birds of prey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBoulder, CO, United StatesHQ recorded Nov 6, 202611-5057 contacts →

Exact match

“Environment for the Americas works to connect people to birds and nature through education, outreach, and research.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFairfield, CT, United StatesHQ recorded Nov 6, 202611-5054 contacts →

Exact match

“The Connecticut Audubon Society conserves Connecticut’s environment through science-based education and advocacy focused on the state’s bird populations and habitats.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHowell, MI, United StatesHQ recorded Nov 6, 202611-5053 contacts →

Exact match

“At the Howell Nature Center, our story begins with a deep-rooted passion for nature and wildlife.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSan Rafael, CA, United StatesHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“WildCare's mission is to advocate for wildlife for a sustainable world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchKempton, PA, United StatesHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“Mission To conserve birds of prey worldwide by providing leadership in raptor conservation science and education, and by maintaining Hawk Mountain Sanctuary as a model…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchDurham, NC, United StatesHQ recorded Nov 6, 2026n/a49 contacts →

Exact match

“Piedmont Wildlife Center is a 501(C)3 nonprofit inspiring lifelong connections with nature through engaging learning experiences, youth camps, wildlife education, and programs…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchFairfield, CA, United StatesHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“MISSION To inspire people to act toward balance with the natural world by rescuing waterbirds in crisis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSmithfield, RI, United StatesHQ recorded Nov 6, 202611-5047 contacts →

Exact match

“The mission of the Audubon Society of Rhode Island is to protect birds, other wildlife, and their habitat through conservation, education, and advocacy for the benefit of people…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHuntersville, NC, United StatesHQ recorded Nov 6, 202611-5047 contacts →

Exact match

“Carolina Raptor Center is dedicated to the conservation of birds of prey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchQuechee, VT, United StatesHQ recorded Nov 6, 202611-5046 contacts →

Exact match

“The Vermont Institute of Natural Science is a 501(c)(3) not for profit organization headquartered in Quechee, Vermont.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 391 bird conservation nonprofits based in the United States

See the full list, filter by size, metro and specialty, and access 3,381 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Bird conservation nonprofits based in the United States at a glance

As of Nov 6, 2026
42.0%Verified-email coverage
20.6Average contacts per company
1-10Median size (employees)
1.8%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
279
11-50
79
51-200
20
201-500
5
501-1,000
2

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 391 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 “bird conservation 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 3,381 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.

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 “bird conservation nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many bird conservation nonprofits are there based in the United States?

RevenueBase identified 391 company matches for bird conservation 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?

Ducks Unlimited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most bird conservation nonprofits?

New York leads with 7 company records, followed by San Diego (5) and San Francisco (5).

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 3,381 professional contacts with verified work emails tracked across these 391 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 391 bird conservation nonprofits based in the United States. Start with a free account, no credit card.

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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 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.