Company lists · Data refreshed September 2026

Top 25 Wetland conservation organizations based in the United States

RevenueBase identified 177 company matches for wetland conservation organizations associated with the United States as of September 2026 and tracks 2,672 professional contacts across them, including 1,186 with verified work emails. Portland is the largest hub.

This list covers company matches for wetland conservation 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 22, 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 Sep 22, 2026 How this list was built
177Companies
2,672Contacts tracked
1,186Verified emails
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The 25 largest wetland conservation organizations based in the United States

Ranked by team size
Top 25 of 177 company matches for wetland conservation organizations based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 Sep 22, 2026501-1,0001,080 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchWashington, DC, United StatesHQ recorded Sep 22, 202651-200147 contacts →

Exact match

“American Rivers protects wild rivers, restores damaged rivers, and conserves clean water for people and nature.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchChico, CA, United StatesHQ recorded Sep 22, 202651-20081 contacts →

Exact match

“River Partners brings life back to rivers.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchWeston, MA, United StatesHQ recorded Sep 22, 202651-20072 contacts →

Exact match

“The Conservation Department is responsible for the day to day operation of the Conservation Commission.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchCoral Gables, FL, United StatesHQ recorded Sep 22, 202611-5039 contacts →

Exact match

“Protect the water you love.#MiamiWaterkeeper Miami Waterkeeper protects South Florida’s waters by advocating for resilient solutions grounded in science, rooted in nature, and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchSt. Paul, MN, United StatesHQ recorded Sep 22, 202611-5036 contacts →

Exact match

“Great River Greening inspires, engages and leads local communities in conserving and caring for the land and water that enrich our lives.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchEmmaus, PA, United StatesHQ recorded Sep 22, 202611-5035 contacts →

Exact match

“Our Mission: Protect and restore critical natural areas and waterways and educate the community to create a legacy of a healthy, sustainable environment for future generations.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchNewport, NC, United StatesHQ recorded Sep 22, 202611-5034 contacts →

Exact match

“The North Carolina Coastal Federation is a nonprofit organization dedicated to protecting and restoring the coast of North Carolina through programs that: keep the public informed…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchStone Harbor, NJ, United StatesHQ recorded Sep 22, 202611-5031 contacts →

Exact match

“A world-class research, education and conservation center at the Jersey Shore that promotes appreciation, understanding and stewardship of wetlands and coastal ecosystems.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchHuntington Beach, CA, United StatesHQ recorded Sep 22, 2026n/a31 contacts →

Exact match

“The Bolsa Chica Conservancy is a private, non-profit organization dedicated to inspiring and connecting all generations through community involvement and hands-on education in…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchCosta Mesa, CA, United StatesHQ recorded Sep 22, 202611-5030 contacts →

Exact match

“Orange County Coastkeeper (Coastkeeper) is a nonprofit clean water organization that serves as a proactive steward of our fresh- and saltwater ecosystems.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchNew Orleans, LA, United StatesHQ recorded Sep 22, 202611-5029 contacts →

Exact match

“The Coalition to Restore Coastal Louisiana is a nonprofit organization whose mission is to unite people in action to achieve a thriving, sustainable Louisiana coast for all.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchConcord, NH, United StatesHQ recorded Sep 22, 202611-5027 contacts →

Exact match

“New Hampshire Audubon, a nonprofit statewide membership organization, is dedicated to the conservation of wildlife and habitat throughout the state.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchRaleigh, NC, United StatesHQ recorded Sep 22, 202611-5027 contacts →

Exact match

“Since 1945, the North Carolina Wildlife Federation has worked for all wildlife and habitat, bringing together citizens, outdoor enthusiasts, hunters and anglers, government and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchPortland, OR, United StatesHQ recorded Sep 22, 202611-5024 contacts →

Exact match

“SOMETIMES TO SAVE A RIVER, YOU HAVE TO BUY IT.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchBloomington, IN, United StatesHQ recorded Sep 22, 20261-1024 contacts →

Exact match

“Sycamore is a 501(c)(3) nonprofit organization conservation organization founded in 1990 that serves 26 counties in southern Indiana.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchGaithersburg, MD, United StatesHQ recorded Sep 22, 202611-5023 contacts →

Exact match

“The Izaak Walton League was formed in 1922 to save outdoor America for future generations.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchAtlanta, GA, United StatesHQ recorded Sep 22, 20261-1023 contacts →

Exact match

“Georgia Conservation Voters is a statewide, 501(c)4 nonpartisan organization dedicated to turning our shared conservation values into state priorities.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchChicago, IL, United StatesHQ recorded Sep 22, 202611-5022 contacts →

Exact match

“The Wetlands Initiative (TWI) envisions a world with plentiful healthy wetlands improving water quality, climate, biodiversity, and human well-being.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchSt. Paul, MN, United StatesHQ recorded Sep 22, 202611-5018 contacts →

Exact match

“The mission of Freshwater Society is to inspire and empower people to value and protect water.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchWashington, DC, United StatesHQ recorded Sep 22, 202611-5016 contacts →

Exact match

“Founded in 1995, Restore America’s Estuaries leads a national alliance of 10 coastal conservation groups dedicated to restoring and preserving America’s estuaries and coasts.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchChampaign, IL, United StatesHQ recorded Sep 22, 20261-1016 contacts →

Exact match

“At Prairie Rivers Network, we protect water, heal land, and inspire change.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchWales, MA, United StatesHQ recorded Sep 22, 20261-1015 contacts →

Exact match

“Founded in 1964 by Arthur D.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchLancaster, OH, United StatesHQ recorded Sep 22, 20261-1014 contacts →

Exact match

“The Stream + Wetlands Foundation (S+W) is an non-profit company based in Lancaster, Ohio.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchRichmond, VA, United StatesHQ recorded Sep 22, 202611-5014 contacts →

Exact match

“Virginia LCV elects conservation leaders to statewide office and strives for a conservation majority in state government.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 177 wetland conservation organizations based in the United States

See the full list, filter by size, metro and specialty, and access 1,186 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wetland conservation organizations based in the United States at a glance

As of Sep 22, 2026
44.4%Verified-email coverage
15.1Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · Portland
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
137
11-50
33
51-200
5
501-1,000
1
10001+
1

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 177 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 “wetland conservation 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 1,186 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 22, 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 “wetland conservation organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wetland conservation organizations are there based in the United States?

RevenueBase identified 177 company matches for wetland conservation 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?

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

Which city has the most wetland conservation organizations?

Portland leads with 4 company records, followed by Washington (4) and Jackson (3).

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 1,186 professional contacts with verified work emails tracked across these 177 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 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 177 wetland conservation organizations 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.