Company lists · Data refreshed November 2026

Top 25 Marine protected area advocacy groups worldwide

RevenueBase identified 802 company matches for marine protected area advocacy groups worldwide as of November 2026 and tracks 10,302 professional contacts across them, including 2,875 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for marine protected area advocacy groups 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 November 6, 2026. Country and city lists for marine protected area advocacy groups 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 Nov 6, 2026 How this list was built
802Companies
10,302Contacts tracked
2,875Verified emails
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The 25 largest marine protected area advocacy groups worldwide

Ranked by team size
Top 25 of 802 company matches for marine protected area advocacy groups worldwide, 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 matchMonterey, CA, United StatesHQ recorded Nov 6, 2026501-1,000795 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSarasota, FL, United StatesHQ recorded Nov 6, 2026201-500493 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBoston, MA, United StatesHQ recorded Nov 6, 2026201-500475 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchUnited StatesHQ recorded Nov 6, 2026201-500436 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 202651-200297 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500279 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGloucester, MA, United StatesHQ recorded Nov 6, 202651-200237 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchWailuku, HI, United StatesHQ recorded Nov 6, 202651-200205 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAlexandria, VA, United StatesHQ recorded Nov 6, 2026n/a192 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchRoss-on-wye, United KingdomHQ recorded Nov 6, 202651-200153 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLaren, NetherlandsHQ recorded Nov 6, 202611-50145 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPortland, ME, United StatesHQ recorded Nov 6, 202651-200139 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 202651-200130 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSt. Agnes, United KingdomHQ recorded Nov 6, 202611-50102 contacts →

Exact match

“Surfers Against Sewage is a national marine conservation and campaigning charity that inspires, unites and empowers communities to take action to protect the ocean and our blue…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchGlen Ellen, CA, United StatesHQ recorded Nov 6, 202611-50102 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20097 contacts →

Exact match

“Known as Blue Marine, this UK registered charity was set up in 2010 by some of the team behind the award-winning documentary film ‘The End of the Line’.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchParis, MonacoHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“L'Institut océanographique s'attache à mieux faire connaître la richesse et la fragilité des océans et à promouvoir une gestion durable et une protection raisonnée et efficace de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchPlymouth, United KingdomHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Ocean Conservation with a difference.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBrussels, United StatesHQ recorded Nov 6, 202611-5066 contacts →

Exact match

“Only One runs campaigns that change minds and shape policy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan Jose, Costa RicaHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“MarViva es una organización regional, no gubernamental y sin fines de lucro, que trabaja para la conservación y el uso sostenible de los recursos marinos y costeros mediante la…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchParis, FranceHQ recorded Nov 6, 202611-5059 contacts →

Exact match

“BLOOM est une association à but non lucratif fondée en 2005 qui œuvre pour la préservation des océans et la défense d'une pêche durable écologiquement et humainement en menant des…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDenpasar, IndonesiaHQ recorded Nov 6, 202611-5058 contacts →

Exact match

“Coral Triangle Center is a non-profit foundation based in Bali with a regional scope and global impact.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWaterfront, South AfricaHQ recorded Nov 6, 202611-5057 contacts →

Exact match

“We are a registered non-profit and public benefit organisation, in partnership with the Two Oceans Aquarium.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchParis, FranceHQ recorded Nov 6, 202611-5055 contacts →

Exact match

“The Ocean Collage is a collaborative workshop to raise awareness about ocean protection.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchUnited StatesHQ recorded Nov 6, 202611-5053 contacts →

Exact match

“The Marine Megafauna Foundation (MMF) was created in 2009 to research, protect and conserve threatened marine megafauna.'Megafauna' are large marine species such as sharks, rays…”

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

Showing 25 of 802 marine protected area advocacy groups worldwide

See the full list, filter by size, metro and specialty, and access 2,875 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marine protected area advocacy groups worldwide at a glance

As of Nov 6, 2026
27.9%Verified-email coverage
12.8Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
535
11-50
206
51-200
38
201-500
9
501-1,000
3
1,001-5,000
3
5,001-10,000
1
10001+
1

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 protected area advocacy groups are linked below.
What qualifies
Company records worldwide whose business descriptions match “marine protected area advocacy 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. 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 2,875 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.

Marine protected area advocacy groups by location

5 lists · largest first

Every Marine protected area advocacy groups 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 protected area advocacy groups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marine protected area advocacy groups are there worldwide?

RevenueBase identified 802 company matches for marine protected area advocacy groups worldwide 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?

Monterey BAY Aquarium tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most marine protected area advocacy groups?

The United States leads with 159 companies, followed by France (56) and the United Kingdom (39). Every marine protected area advocacy groups list by country and city is linked on this page.

Which city has the most marine protected area advocacy groups?

London leads with 13 company records, followed by Paris (10) and San Diego (7).

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 2,875 professional contacts with verified work emails tracked across these 802 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.

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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.