Company lists · Data refreshed September 2026
Top 25 Ocean conservation groups worldwide
RevenueBase identified 1,666 ocean conservation groups worldwide as of September 2026 and tracks 18,482 professional contacts across them, including 4,855 with verified work emails. The United States is the largest market and London the largest hub.
This list covers ocean conservation groups worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for ocean conservation groups follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest ocean conservation groups worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 738 contacts → | ||||
Strong evidence “The mission of the nonprofit Monterey Bay Aquarium is to inspire conservation of the ocean.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 453 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 438 contacts → | ||||
Partial evidence “The New England Aquarium is a catalyst for global change through public engagement, commitment to marine animal conservation, leadership in education, innovative scientific…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 425 contacts → | ||||
Partial evidence “We are a private nonprofit organization whose mission is to connect people with nature to inspire compassion and care for our ocean planet!” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 398 contacts → | ||||
Strong evidence “Oceana is the largest international advocacy organization dedicated solely to ocean conservation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 357 contacts → | ||||
Indirect evidence “The Marine Stewardship Council is an international non-profit organisation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 328 contacts → | ||||
Partial evidence “The Surfrider Foundation is a 501(c)3 non-profit organization dedicated to the protection and enjoyment of our world’s ocean, waves and beaches.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 272 contacts → | ||||
Partial evidence “The Seattle Aquarium is a nonprofit Aquarium committed to Earth’s one ocean.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 272 contacts → | ||||
Indirect evidence “Planet Wild is a global community of people who care deeply about nature and want to help our planet bounce back.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 257 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 256 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 255 contacts → | ||||
Partial evidence “We believe the power to restore our oceans lives in the coastal communities bearing witness to the planetary crises.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 246 contacts → | ||||
Partial evidence “The Swedish Society for Nature Conservation (SSNC) is an environmental organization with power to bring about change.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 240 contacts → | ||||
Partial evidence “Seaside Sustainability is a nationally recognized, award-winning 501(c)3 charitable organization dedicated to community engagement, education and environmental conservation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 227 contacts → | ||||
Partial evidence “Our ocean is truly awesome-but it is not invincible.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 191 contacts → | ||||
Indirect evidence “Pacific Whale Foundation is a non-profit organization founded in 1980 to save whales from extinction.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 183 contacts → | ||||
Partial evidence “Established in 1977, Sea Shepherd Conservation Society (SSCS) is an international non-profit, marine wildlife conservation organization.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 165 contacts → | ||||
Indirect evidence “A promover o conhecimento e a conservação do oceano desde 1998” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 156 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 155 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 148 contacts → | ||||
Indirect evidence “Nausicaá, Centre national de la mer, est un centre de culture scientifique qui sensibilise au lien qui unit l’Homme à l’Océan.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 145 contacts → | ||||
Strong evidence “Ocean Wise is a global non-for-profit conservation organization inspiring action to conserve our oceans.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 125 contacts → | ||||
Partial evidence “First established in 1977, Sea Shepherd is an international non-profit, marine wildlife conservation organisation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 122 contacts → | ||||
Partial evidence “The Gulf of Maine Research Institute (GMRI) pioneers collaborative solutions to global ocean challenges.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 119 contacts → | ||||
Indirect evidence “Our mission : Protection and sustainable management of the coastline Surfrider Foundation Europe is a non profit organization, dedicated to defending, saving, improving and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: ocean conservation groups. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names ocean conservation groups.
- Partial evidence
- Its own public description names part of ocean conservation groups, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name ocean conservation groups. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,666 ocean conservation groups worldwide
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Ocean conservation groups worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among ocean conservation groups, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for ocean conservation groups are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “ocean conservation groups”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names ocean conservation groups), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among ocean conservation groups, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 4,855 across the full list. 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.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Ocean conservation groups by location
9 lists · largest firstEvery Ocean conservation groups list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Ocean conservation groups based in the United States386
- Ocean conservation groups based in France115
- Ocean conservation groups based in the United Kingdom75
- Ocean conservation groups based in Spain58
- Ocean conservation groups based in Australia56
- Ocean conservation groups based in Indonesia53
- Ocean conservation groups based in Canada48
- Ocean conservation groups based in Brazil44
- Ocean conservation groups based in Italy25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names ocean conservation groups, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many ocean conservation groups are there worldwide?
RevenueBase identified 1,666 ocean conservation groups worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Monterey BAY Aquarium, headquartered in Monterey, tops this list with the largest team on record.
Which country has the most ocean conservation groups?
The United States leads with 386 companies, followed by France (115) and the United Kingdom (75). Every ocean conservation groups list by country and city is linked on this page.
Which city has the most ocean conservation groups?
London leads with 26 headquartered companies, followed by Paris (16) and San Francisco (16).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,855 verified decision-maker contacts tracked across these 1,666 companies.
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 Smart Search, 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.