Company lists · Data refreshed September 2026

Top 25 Marine conservation groups based in the United States

RevenueBase identified 209 company matches for marine conservation groups associated with the United States as of September 2026 and tracks 8,913 professional contacts across them, including 2,452 with verified work emails. San Francisco is the largest hub.

This list covers company matches for marine conservation groups 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 20, 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 20, 2026 How this list was built
209Companies
8,913Contacts tracked
2,452Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest marine conservation groups based in the United States

Ranked by team size
Top 25 of 209 company matches for marine conservation groups based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchBronx, NY, United StatesHQ recorded Sep 20, 20261,001-5,0003,663 contacts →

Exact match

“WCS stands for wildlife and wild places.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchMonterey, CA, United StatesHQ recorded Sep 20, 2026501-1,000738 contacts →

Exact match

“The mission of the nonprofit Monterey Bay Aquarium is to inspire conservation of the ocean.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchSarasota, FL, United StatesHQ recorded Sep 20, 2026201-500453 contacts →

Exact match

“Founded in 1955, Mote Marine Laboratory & Aquarium is an independent, nonprofit 501(c)3 research organization based in Sarasota, Fla, with additional field stations in eastern…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchBoston, MA, United StatesHQ recorded Sep 20, 2026201-500438 contacts →

Exact match

“The New England Aquarium is a catalyst for global change through public engagement, commitment to marine animal conservation, leadership in education, innovative scientific…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchSeattle, WA, United StatesHQ recorded Sep 20, 202651-200272 contacts →

Exact match

“The Seattle Aquarium is a nonprofit Aquarium committed to Earth’s one ocean.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchClearwater, FL, United StatesHQ recorded Sep 20, 2026201-500256 contacts →

Exact match

“OUR MISSION: We believe in preserving our environment while inspiring the human spirit through leadership in the rescue, rehabilitation, and release of marine life; environmental…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchGloucester, MA, United StatesHQ recorded Sep 20, 202651-200240 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 · Sep 20, 2026 · View company records in RevenueBase
8Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-200227 contacts →

Exact match

“Our ocean is truly awesome-but it is not invincible.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchWailuku, HI, United StatesHQ recorded Sep 20, 202651-200191 contacts →

Exact match

“Pacific Whale Foundation is a non-profit organization founded in 1980 to save whales from extinction.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchAlexandria, VA, United StatesHQ recorded Sep 20, 2026n/a183 contacts →

Exact match

“Established in 1977, Sea Shepherd Conservation Society (SSCS) is an international non-profit, marine wildlife conservation organization.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchSan Diego, CA, United StatesHQ recorded Sep 20, 202651-20088 contacts →

Exact match

“The National Marine Mammal Foundation is a 501(c)3 nonprofit organization with a mission to improve and protect life for all marine mammals, humans, and our shared oceans by…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchGlen Ellen, CA, United StatesHQ recorded Sep 20, 202611-5085 contacts →

Exact match

“Marine Conservation Institute is a team of highly-experienced marine scientists and environmental policy advocates dedicated to saving ocean life for us and future generations.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchSan Diego, CA, United StatesHQ recorded Sep 20, 202651-20053 contacts →

Exact match

“Hubbs-SeaWorld Research Institute (HSWRI) is a non-profit scientific research organization committed to conserving and renewing marine life to ensure a healthier planet.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchMarina Del Rey, CA, United StatesHQ recorded Sep 20, 202611-5050 contacts →

Exact match

“The Reef Check Foundation is an international non-profit organization dedicated to conservation of two ecosystems: tropical coral reefs and California rocky reefs.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5046 contacts →

Exact match

“The Ocean Foundation is the gathering place for marine conservation donors and conservation entrepreneurs to advance global ocean solutions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchRancho Santa Margarita, CA, United StatesHQ recorded Sep 20, 202611-5038 contacts →

Exact match

“PADI AWARE Foundation™ is an accredited global charity with a mission to drive local action for global ocean conservation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5036 contacts →

Exact match

“Nonprofit partner to NOAA’s Greater Farallones and Cordell Bank National Marine Sanctuaries.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchSan Pedro, CA, United StatesHQ recorded Sep 20, 202611-5035 contacts →

Exact match

“The Marine Mammal Care Center inspires ocean conservation through marine animal rescue, rehabilitation, education, and research.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5032 contacts →

Exact match

“Mission Blue inspires action to explore and protect the ocean.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchCA, United StatesHQ recorded Sep 20, 202611-5031 contacts →

Exact match

“Innoceana is an organisation that leads with innovation in the race to save our oceans.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchCosta Mesa, CA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
22Exact matchOlema, CA, United StatesHQ recorded Sep 20, 202611-5030 contacts →

Exact match

“Turtle Island Restoration Network is a global ocean conservation nonprofit with offices in California and Texas whose mission is to inspire and mobilize people around the world to…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Sep 20, 202651-20030 contacts →

Exact match

“CCA was created in 1977, after drastic commercial overfishing along the Texas coast had decimated redfish and speckled trout populations.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchKey Largo, FL, United StatesHQ recorded Sep 20, 20261-1028 contacts →

Exact match

“Reef Environmental Education Foundation (REEF) is an international marine conservation organization that implements hands-on programs to involve local communities in…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchBoulder, CO, United StatesHQ recorded Sep 20, 202611-5025 contacts →

Exact match

“Ocean First was founded in 2005 to be an advocate for marine science education and ocean conservation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 209 marine conservation groups based in the United States

See the full list, filter by size, metro and specialty, and access 2,452 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Marine conservation groups based in the United States at a glance

As of Sep 20, 2026
27.5%Verified-email coverage
42.6Average contacts per company
1-10Median size (employees)
3.3%Largest-city concentration · San Francisco
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
135
11-50
51
51-200
15
201-500
4
501-1,000
2
1,001-5,000
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 209 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 “marine conservation groups” 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 2,452 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 20, 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 “marine conservation groups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marine conservation groups are there based in the United States?

RevenueBase identified 209 company matches for marine conservation groups 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?

Wildlife Conservation Society tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most marine conservation groups?

San Francisco leads with 7 company records, followed by Washington (7) and Miami (6).

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 2,452 professional contacts with verified work emails tracked across these 209 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 209 marine conservation groups based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.