Company lists · Data refreshed September 2026

Top 25 Marine conservation organizations worldwide

RevenueBase identified 1,733 company matches for marine conservation organizations worldwide as of September 2026 and tracks 25,082 professional contacts across them, including 6,269 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for marine conservation organizations worldwide, 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. Country and city lists for marine conservation organizations follow the table.

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
1,733Companies
25,082Contacts tracked
6,269Verified emails
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The 25 largest marine conservation organizations worldwide

Ranked by team size
Top 25 of 1,733 company matches for marine conservation organizations worldwide, 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 matchBergen, NorwayHQ recorded Sep 20, 20261,001-5,000783 contacts →

Exact match

“The Institute of Marine Research (IMR) is one of the biggest research institute of its kind in Europe, with over employees.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact 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
4Exact 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
5Exact 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
6Exact matchUnited StatesHQ recorded Sep 20, 2026201-500398 contacts →

Exact match

“Oceana is the largest international advocacy organization dedicated solely to ocean conservation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200357 contacts →

Exact match

“The Marine Stewardship Council is an international non-profit organisation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchTampa, FL, United StatesHQ recorded Sep 20, 2026201-500302 contacts →

Exact match

“The Florida Aquarium actively participates in and promotes stewardship of the natural environment as part of our mission of conservation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact 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
10Exact matchUbatuba, BrazilHQ recorded Sep 20, 2026501-1,000257 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact 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
12Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500255 contacts →

Exact match

“We believe the power to restore our oceans lives in the coastal communities bearing witness to the planetary crises.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact 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
16Exact 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
17Exact matchLisboa, PortugalHQ recorded Sep 20, 202651-200165 contacts →

Exact match

“A promover o conhecimento e a conservação do oceano desde 1998”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchRoss-on-wye, United KingdomHQ recorded Sep 20, 202651-200156 contacts →

Exact match

“The Marine Conservation Society is the UK's leading marine charity working towards a cleaner, better protected and healthier ocean, for everyone Today, our ocean is in poor health…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchAlcobendas, SpainHQ recorded Sep 20, 2026201-500155 contacts →

Exact match

“Founded in 1992, Satlink is a world leading technology provider that develops solutions focused on ocean knowledge and sustainability, improving the management of ocean resources…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchVancouver, BC, CanadaHQ recorded Sep 20, 202651-200145 contacts →

Exact match

“Ocean Wise is a global non-for-profit conservation organization inspiring action to conserve our oceans.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-50135 contacts →

Exact match

“OceanX is a mission to explore the unseen ocean, map uncharted areas of the world, observe rare deep-sea creatures, pursue scientific and medical breakthroughs, and then bring all…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchUckfield, United KingdomHQ recorded Sep 20, 2026n/a128 contacts →

Exact match

“British Divers Marine Life Rescue is a charity dedicated to frontline response for marine mammals around the UK using a network of over trained volunteer Marine Mammal Medics.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchLaren, NetherlandsHQ recorded Sep 20, 202611-50125 contacts →

Exact match

“First established in 1977, Sea Shepherd is an international non-profit, marine wildlife conservation organisation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchPortland, ME, United StatesHQ recorded Sep 20, 202651-200122 contacts →

Exact match

“The Gulf of Maine Research Institute (GMRI) pioneers collaborative solutions to global ocean challenges.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchSamos Island, GreeceHQ recorded Sep 20, 202611-50110 contacts →

Exact match

“Archipelagos Institute of Marine Conservation is a non-profit, non-governmental organization committed to researching and defending the biodiversity of the Greek seas and islands…”

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

Showing 25 of 1,733 marine conservation organizations worldwide

See the full list, filter by size, metro and specialty, and access 6,269 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marine conservation organizations worldwide at a glance

As of Sep 20, 2026
25.0%Verified-email coverage
14.5Average contacts per company
1-10Median size (employees)
1.3%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
1,174
11-50
418
51-200
96
201-500
22
501-1,000
9
1,001-5,000
5
5,001-10,000
4
10001+
3

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for marine conservation organizations are linked below.
What qualifies
Company records worldwide whose business descriptions match “marine 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. 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 6,269 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.

Marine conservation organizations by location

10 lists · largest first

Every Marine conservation organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marine conservation organizations are there worldwide?

RevenueBase identified 1,733 company matches for marine conservation organizations worldwide 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 country has the most marine conservation organizations?

The United States leads with 313 companies, followed by France (110) and the United Kingdom (103). Every marine conservation organizations list by country and city is linked on this page.

Which city has the most marine conservation organizations?

London leads with 23 company records, followed by Miami (14) and Paris (12).

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 6,269 professional contacts with verified work emails tracked across these 1,733 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.

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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.