Company lists · Data refreshed September 2026
Top 25 Volunteer organizations based in Brazil
RevenueBase identified 424 volunteer organizations headquartered in Brazil as of September 2026 and tracks 6,842 professional contacts across them, including 702 with verified work emails. Sao Paulo is the largest hub.
This list covers volunteer organizations 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 22, 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.
The 25 largest volunteer organizations based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 513 contacts → | ||||
Indirect evidence “Há mais de um século, a Liga Solidária nasceu da força e determinação de mulheres que acreditavam na transformação social como resposta às urgências da época.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 281 contacts → | ||||
Indirect evidence “A Organização das Voluntárias de Goiás (OVG) é uma entidade sem fins lucrativos que proporciona dignidade e respeito ao investir na cidadania por meio de programas sociais.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 249 contacts → | ||||
Indirect evidence “Um movimento de jovens e para jovens.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 240 contacts → | ||||
Indirect evidence “Centro Assistencial de Motivação Profissional, é uma organização sem fins lucrativos com DNA social, que atua no desenvolvimento pessoal e profissional de jovens e adultos e na…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 220 contacts → | ||||
Indirect evidence “Valorize a vida!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 209 contacts → | ||||
Indirect evidence “O Instituto Dom Bosco Bom Retiro está na contramão dos problemas sociais e vem se destacando por seus projetos apropriados para cada faixa etária.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 107 contacts → | ||||
Indirect evidence “Apae de Anápolis - Empresa filantrópica” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 102 contacts → | ||||
Indirect evidence “A Ação da Cidadania nasceu em 1993, formando uma imensa rede de mobilização de alcance nacional para ajudar 32 milhões de brasileiros que, segundo dados do Ipea, estavam abaixo da…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 99 contacts → | ||||
Indirect evidence “O Atados é uma plataforma social online que conecta pessoas à oportunidades de voluntariado em causas sociais.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 94 contacts → | ||||
Indirect evidence “Instituto Morgan is a civic & social organization company based out of Embu das Artes, Brazil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 91 contacts → | ||||
Indirect evidence “O Instituto Claret é uma organização da sociedade civil, sem fins lucrativos, com finalidade educativa, cultural e de promoção social, estimulando através destas ações o…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 80 contacts → | ||||
Indirect evidence “A ESPM Social nasceu como resultado de um processo que, no final dos anos 1990, traz para a ESPM uma reflexão sobre o terceiro setor, ética, e responsabilidade social.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 76 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 60 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 60 contacts → | ||||
Indirect evidence “Sociedade Santos Martires is a civic & social organization company based out of Rua Luis Baldinato 09, Sao Paulo, São Paulo, Brazil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 54 contacts → | ||||
Indirect evidence “Student organization created and managed by FEA students, which main aim is to promote the social sector with consulting services for NGOs and social businesses incubation, as…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 36 contacts → | ||||
Indirect evidence “Associacao Reciclazaro is a nonprofit organization management company based out of Praça Alfredo Weiszflog 37, São Paulo, São Paulo, Brazil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 29 contacts → | ||||
Indirect evidence “O COMEC - Centro de Orientação ao Adolescente de Campinas é uma Organização não governamental, de utilidade pública, municipal, estadual e federal, sem fins lucrativos, criada em…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 27 contacts → | ||||
Indirect evidence “A Fundação L’Hermitage é uma instituição de direito privado, com plena autonomia jurídica, patrimonial, administrativa e financeira.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 21 contacts → | ||||
Indirect evidence “Encontro Fraterno Lins De Vasconcellos is a civic & social organization company based out of Av Franklin Delano Roosevelt, 5485, Cs, Maringa, Paraná, Brazil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 contacts → | ||||
Indirect evidence “Projeto RUAS atua desde 2014 no Rio de Janeiro com o objetivo de engajar voluntários e voluntárias a gerar oportunidades e apoiar a população em situação de rua.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 20 contacts → | ||||
Indirect evidence “A Associação Acolhimento Bom Pastor é uma Organização da Sociedade Civil (OSC) que oferece serviços e desenvolve ações de caráter absolutamente gratuitos com o público em situação…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 contacts → | ||||
Indirect evidence “Organização sem fins lucrativos.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 18 contacts → | ||||
Indirect evidence “São mais de 19 anos dedicados a cuidar do próximo por meio da educação, esporte, cultura e voluntariado.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 17 contacts → | ||||
Indirect evidence “Organização sem fins lucrativos com a finalidade de difundir o campo de atividades da Consultoria de Organização, promovendo ações voltadas a apresentar aos indivíduos…” Source: RevenueBase Database · checked Sep 22, 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: volunteer organizations. 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 volunteer organizations.
- Partial evidence
- Its own public description names part of volunteer organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name volunteer organizations. 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 424 volunteer organizations based in Brazil
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 702 reachable decision-makers.
Free signup · no credit card
Volunteer organizations based in Brazil at a glance
As of Sep 22, 2026Companies by employee count
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 424 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 volunteer organizations, 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 “volunteer organizations”. 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 volunteer organizations), 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 volunteer organizations, 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, 702 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 22, 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.
Volunteer organizations by metro
- Volunteer organizations in Sao Paulo89
- Volunteer organizations in Rio De Janeiro38
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 volunteer organizations, 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 volunteer organizations are there based in Brazil?
RevenueBase identified 424 volunteer organizations 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?
Liga Solidária, headquartered in Sao Paulo, tops this list with the largest team on record.
Which city has the most volunteer organizations?
Sao Paulo leads with 89 headquartered companies, followed by Rio De Janeiro (38) and Belo Horizonte (10).
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 702 verified decision-maker contacts tracked across these 424 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 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 424 volunteer organizations based in Brazil. Start with a free account, no credit card.
Download this list →Related lists
Volunteer organizations by geography
- Volunteer organizations based in New Delhi, India
- Volunteer organizations based in Atlanta, United States
- Volunteer organizations based in Chicago, United States
- Volunteer organizations based in Houston, United States
- Volunteer organizations based in Los Angeles, United States
- Volunteer organizations based in New York, United States
- Volunteer organizations based in Washington, United States
- Volunteer organizations based in Australia
- Volunteer organizations based in Austria
- Volunteer organizations based in Belgium
- Volunteer organizations based in Canada
- Volunteer organizations based in Denmark
Browse the directory
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Volunteer organizations based in New Delhi, India
- Volunteer organizations based in Atlanta, United States
- Volunteer organizations based in Chicago, United States
- Volunteer organizations based in Houston, United States
- Volunteer organizations based in Los Angeles, United States
- Volunteer organizations based in New York, United States