Company lists · Data refreshed September 2026

Top 14 Marine conservation nonprofits based in Brazil

RevenueBase identified 47 marine conservation nonprofits headquartered in Brazil as of September 2026 and tracks 769 professional contacts across them, including 94 with verified work emails. Rio De Janeiro is the largest hub.

This list covers marine conservation nonprofits headquartered in Brazil, 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.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
47Companies
769Contacts tracked
94Verified emails
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The 14 largest marine conservation nonprofits based in Brazil

Ranked by team size
Top 14 of 47 marine conservation nonprofits based in Brazil, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to marine conservation nonprofits: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceUbatuba, BrazilHQ checked Sep 20, 2026501-1,000257 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceSão Paulo, BrazilHQ checked Sep 20, 202611-5050 contacts →

Partial evidence

“A Sea Shepherd Brasil é uma organização sem fins lucrativos para proteger a vida marinha no planeta.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceMata De São João, BrazilHQ checked Sep 20, 202611-5042 contacts →

Indirect evidence

“O Instituto Baleia Jubarte (IBJ) é uma Organização da Sociedade Civil de Interesse Público (OSCIP), sem fins lucrativos, que atua com educação ambiental, pesquisa e conservação de…”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceSantos, BrazilHQ checked Sep 20, 202611-5036 contacts →

Indirect evidence

“Criado em 1990, em Santos, o Projeto Albatroz é mantido pelo Instituto Albatroz, uma Organização da Sociedade Civil de Interesse Público (OSCIP) que tem como objetivo reduzir a…”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceCaucaia, BrazilHQ checked Sep 20, 202651-20035 contacts →

Indirect evidence

“A Associação de Pesquisa e Preservação de Ecossistemas Aquáticos - Aquasis é uma ONG fundada há quase 30 anos, com o objetivo de proteger espécies ameaçadas e habitats importantes…”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceNatal, BrazilHQ checked Sep 20, 202611-5032 contacts →

Indirect evidence

“O Centro de Estudos e Monitoramento Ambiental (CEMAM) é uma Organização da Sociedade Civil (OSC) criada em setembro de 2014 com objetivos focados em pesquisa, monitoramento…”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceSão Cristóvão, BrazilHQ checked Sep 20, 202611-5021 contacts →

Indirect evidence

“A Fundação Mamíferos Aquáticos (FMA) é uma organização da sociedade civil, sem fins lucrativos, que, desde 1989, trabalha para conservar o meio ambiente em todos os seus aspectos…”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidencePontal Do Paraná, BrazilHQ checked Sep 20, 20261-1019 contacts →

Indirect evidence

“A Associação MarBrasil é uma organização não governamental sem fins lucrativos, fundada em agosto de 2004, com sede no município de Pontal do Paraná, PR.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceVila Velha, BrazilHQ checked Sep 20, 20261-1012 contacts →

Indirect evidence

“O Instituto: O IBRAMAR – Instituto Brasileiro dos Recursos Ambientais e Assessoria Rural é uma entidade sem fins lucrativos criada em 1º de outubro de 2008, com personalidade…”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidencePraia Grande, BrazilHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

“O Instituto Biopesca é uma associação civil sem fins lucrativos criada em 1998 no município da Praia Grande, litoral central de São Paulo, Brasil.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceSantos, BrazilHQ checked Sep 20, 20261-109 contacts →

Partial evidence

“We are a non-profit civil association, founded in 2008 in the city of Santos to combat marine pollution and the degradation of aquatic ecosystems through the elaboration of…”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceVitoria, BrazilHQ checked Sep 20, 20261-106 contacts →

Indirect evidence

“Bloom fosters more sustainable, creative, and purpose-driven solutions to global issues related to the ocean, coastal areas and communities, and climate change.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 20, 202611-505 contacts →

Indirect evidence

“Fundado em 2003 pelos então professores do Museu Nacional/UFRJ, Clovis Castro e Débora Pires, atuamos para a conservação e a sustentabilidade socioambiental dos recifes de coral e…”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceVitória, BrazilHQ checked Sep 20, 20261-104 contacts →

Partial evidence

“A EGS é um grupo independente de empresas fundado em 1974, especializado em estudos e pesquisa marinha, líder em segmentos de mercado e com escritórios na Europa, Américas, Índia…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 14 of 47 marine conservation nonprofits based in Brazil

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Marine conservation nonprofits based in Brazil at a glance

As of Sep 20, 2026
12.2%Verified-email coverage
16.4Average contacts per company
1-10Median size (employees)
8.5%Largest-city concentration · Rio De Janeiro
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
18
51-200
4
501-1,000
1

Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 47 companies.

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 marine conservation nonprofits, 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.
What qualifies
Companies headquartered in Brazil whose own description of what they do matches “marine conservation nonprofits”. 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 marine conservation nonprofits), 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 marine conservation nonprofits, and records with no verified work email. Companies headquartered outside Brazil are excluded even when they keep an office there.
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, 94 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.

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 marine conservation nonprofits, 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 marine conservation nonprofits are there based in Brazil?

RevenueBase identified 47 marine conservation nonprofits headquartered in Brazil 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?

Fundação Projeto Tamar, headquartered in Ubatuba, tops this list with the largest team on record.

Which city has the most marine conservation nonprofits?

Rio De Janeiro leads with 4 headquartered companies, followed by Mata De Sao Joao (3) and Ubatuba (3).

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 94 verified decision-maker contacts tracked across these 47 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.