Charities Brazil Environment Rio Endowment
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Rio Endowment

Rio de Janeiro Reg 47842937/0001-78 · Receita Federal Sign up to see website
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62
Integrity Assessment
Partial transparency
62/100 · methodology

About Rio Endowment

O Rio Endowment é o fundo patrimonial que investe em STEM no Rio de Janeiro.

Founded
Headquarters
Rio de Janeiro
Foundation type
Private Association (Associação Privada)

Focus areas & reach

· What they work on and where
🌿 Environment

How it stacks up against peers

· vs. 8 similar environment in Brazil
Integrity Assessment This charity: 62
Peer average: 62

Red flags

· All clear
Receita Federal status change
OFAC / EU / UN sanctions
Open investigations
Governance scandals
Related-party deals
Excessive exec comp

Common questions

· Auto-generated from filings + methodology

Rio Endowment is a registered environment nonprofit based in Rio de Janeiro, Brazil. It is registered with the Receita Federal (CNPJ). It was founded in 2022. Its registration number is 47842937/0001-78. It has a GiveRadar Integrity Assessment of 62/100 (Partial transparency), indicating some public data is available but key signals are missing. No red flags have been detected.

Rio Endowment has a GiveRadar Integrity Assessment of 62/100. This score combines five components: Registration (20 pts), Financial Transparency (30 pts), Governance (20 pts), Contact Availability (10 pts), and Data Recency (20 pts), with negative adjustments for any red flags. A score of 62 ('Partial transparency') means some public data is on file but key signals are missing - worth a closer look before donating. For comparison, the average integrity assessment for environment charities in Brazil is 62/100.

Rio Endowment is located in Rio de Janeiro, Brazil. The organization was established in 2022 and has been active for 4 years.

Rio Endowment is classified as a Environment organization, registered in Brazil. It operates as a Associação Privada. The organization has 3 disclosed officers and directors.

No red flags have been detected for Rio Endowment. GiveRadar automatically screens charities for concerning patterns including high executive compensation, low program spending, and missing financial filings. Based on available official data, no issues have been identified.

Rio Endowment has a GiveRadar Integrity Assessment of 62/100. We recommend reviewing the full profile before making a donation decision. The organization is overseen by the Receita Federal. You can donate directly through their official donation page linked on their GiveRadar profile. GiveRadar provides data for research purposes and does not endorse any organization. Always do your own due diligence.

O Rio Endowment é o fundo patrimonial que investe em STEM no Rio de Janeiro. Rio Endowment is classified as a environment organization registered in Brazil. The organization was founded in 2022.

Among environment charities registered in Brazil: Rio Endowment's GiveRadar Integrity Assessment of 62/100 is in line with the peer average of 62/100.

Rio Endowment is registered in Brazil. While general charitable donations are not directly deductible for individuals, donations to certain government-approved funds (such as those for children's rights or elderly welfare) may qualify for deductions of up to 6% of your income tax due.

Rio Endowment is a Brazilian private association (associação privada) - the most common legal form for nonprofits in Brazil. An associação is a membership-based legal entity created by at least two people for a non-economic purpose; decisions are made by the general assembly of members, governed under articles 53-61 of the Brazilian Civil Code (Lei 10.406/2002). Associações privadas are by far the largest category of Brazilian nonprofits - there are roughly 670,000 of them registered with the Receita Federal under nonprofit 'natureza jurídica' codes. It is registered with the Receita Federal under the Cadastro Nacional da Pessoa Jurídica (CNPJ), with CNPJ 47842937/0001-78.

You can verify Rio Endowment's legal status in three ways. First, look up the Receita Federal CNPJ record directly: https://solucoes.receita.fazenda.gov.br/Servicos/cnpjreva/Cnpjreva_Solicitacao.asp and enter CNPJ 47842937/0001-78. The result page shows the official razão social, legal form (natureza jurídica), registered address, primary economic activity (CNAE), and current status (ativa / suspensa / baixada). Second, search the Mapa das OSCs maintained by IPEA (https://mapaosc.ipea.gov.br/) using either the name or the CNPJ 47842937000178. Mapa OSC aggregates Receita data plus public-sector partnerships and employment counts for over 800,000 Brazilian civil-society organisations. Third, ask the organisation for its most recent estatuto social (bylaws, registered with the local cartório de registro civil de pessoas jurídicas) and its most recent prestação de contas (annual financial report) - legitimate Brazilian nonprofits will share these on request. If the CNPJ is active, the Mapa OSC record matches, and the estatuto / financial report are available, the organisation is legitimate.

You can donate to Rio Endowment directly through its donation page (https://donate.stripe.com/28oeXW3y81adgOk6oq). Brazilian charities overwhelmingly use Pix - Brazil's instant central-bank payment system, free for individuals and accepted by every retail bank. Pix payments settle in seconds using the recipient's CPF/CNPJ, email, phone or random key (chave Pix) and are the default donation channel for most Brazilian nonprofits. Other common channels: boleto bancário (printable payment slip), TED / DOC bank transfer to the organisation's conta corrente, PicPay, Mercado Pago, PagSeguro, and credit card via Brazilian fundraising platforms such as Vakinha, Benfeitoria, Catarse, Kickante, and Sympla. International donors can give via PayPal, GoFundMe, or international wire transfer (SWIFT). For tax-deductible giving under IRPF (income tax), donations must be channelled through specific funds - FUMCAD / Fundo da Criança e do Adolescente, Fundo do Idoso, and incentive laws for culture (Lei Rouanet), sports (Lei de Incentivo ao Esporte) and health (Pronon, Pronas/PCD); donations to most other charities are NOT deductible from Brazilian income tax. Always confirm the recipient's CNPJ and current Receita status before sending funds.

Verified against 3 official sources, last refreshed .

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Taxes

Tax-deductibility for donors

Donations may be tax-deductible for residents of Brazil under local rules. Confirm with the charity directly.

Always confirm tax treatment with the charity directly or your tax advisor before donating.

Leadership

JO
Joao Pedro Torres De Abreu Machado Sardinha
Director

Officers & trustees (3)

Source: Public filings

JO
Joao P•••• T••••• D• A•••• M•••••• S•••••••
Director
LU
Luca B••••• C•••••••••
Director
TH
Thomas L••••• R••••••
President
Full names, contact details & compensation

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Latest news

From global news sources

3 articles found

From global news sources

Sentiment

Neutral

Activity timeline

Filings and press mentions, merged

Brasileiros que concluírem o Ensino Médio receberão um incentivo de R$ 3.000 - Diário do Comércio
Jan 2026
diariodocomercio.com.br
Fundo Rio Endowment apoia alunos de baixa renda em áreas de ciência e tecnologia - Times Brasil | CNBC
Aug 2025
timesbrasil.com.br
Ao vivo: Poder360 entrevista fundadores do Rio Endowment - Poder360
Apr 2023
www.poder360.com.br

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Peer charities

Other environment in Brazil, by integrity assessment

Charity Score Revenue Program %
Rio Endowment This page 62 - -
Instituto Coral 62 - -
Les Brasil 62 - -
Anma 62 - -
Eii Brazil 62 - -
Associacao Civil Enercia 62 - -
Onda Verde 62 - -
Associacao dos Lojistas do Madureira Shopping Rio 62 - -
Associacao Mahalo de Inovacao e Sustentabilidade 62 - -

Sources and verification

Refreshed

Registration and legal identity
Receita Federal (Brazilian Federal Revenue)
Officers and trustees
Receita Federal (Brazilian Federal Revenue) - 3 disclosed in the public registry.
News and media coverage
GDELT Project + Google News

Data freshness

Last updated
Apr 21, 2026
Profile completeness
45%

What we don't know

Honest gaps - our score reflects transparency, not impact

Financial filings
No Demonstrações contábeis (CNPJ) on file
Executive compensation
Top-officer pay not disclosed
Mission statement
No self-published statement of purpose
Programs & projects
No named programs listed by the charity
Tax-deductibility status
Whether donations are tax-deductible has not been verified
Operating reach
Countries where programs run not specified

Methodology

GiveRadar combines public registry filings, ProPublica Nonprofit Explorer, Charity Navigator, GuideStar, and news archives into a single 0-100 integrity assessment. We don't take a cut of any donation, ever.

Read full methodology

Quick facts about Rio Endowment

What is Rio Endowment?
Rio Endowment is a environment private association based in Rio de Janeiro, Brazil. O Rio Endowment é o fundo patrimonial que investe em STEM no Rio de Janeiro.
When was Rio Endowment founded?
Rio Endowment was founded in 2022.
Where is Rio Endowment located?
Headquartered in Rio de Janeiro, Brazil.
Is Rio Endowment trustworthy?
Rio Endowment has a GiveRadar Integrity Assessment of 62 out of 100 (Partial transparency). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
What is Rio Endowment's registration number?
Registration: 47842937/0001-78 (Brazil).
What is Rio Endowment's website?
https://rioendowment.com
Are donations to Rio Endowment tax-deductible?
Donations may be tax-deductible for residents of Brazil under local rules. US donors should check whether the charity has an equivalency-determination letter or a US-based fiscal sponsor before claiming a deduction.