Osprey Foundation
At a glance
This funder does not accept unsolicited applications. The foundation chooses the organisations it funds itself.
Key takeaways
- Osprey Foundation funds water, sanitation and hygiene; cleaner cooking; ecumenical and interfaith community building; and social justice, with a geographic priority of United States; Baltimore.
- A realistic request would sit around the median grant of $150,000, with most grants falling between $50,000 and $700,000, though the largest grant made was $1,100,000.
- The foundation operates by invitation only and does not accept unsolicited requests, so a grant writer should not send in a cold application but should look for ways to be introduced or noticed by the foundation.
- With 59% of grant dollars going to organisations it had already funded in the prior two filings, this looks like a relationship-led funder that favours continuing partners, so new applicants should be realistic about how competitive an approach may be.
- No information is given on timing or deadlines.
Overview
Osprey Foundation is a US private foundation based in Towson, MD.
What they fund
Profile derived from the foundation's IRS Form 990-PF filings (TY2024, TY2023, TY2022) and its website, with every statement checked against those sources. Sources read on 7 October 2026.
Priority Areas
Osprey Foundation focuses on water, sanitation and hygiene; cleaner cooking; ecumenical and interfaith community building; and social justice. It supports WASH initiatives delivering effective, sustainable and scalable services in underserved communities, and cleaner-cooking approaches, including early-stage market-based solutions and research. Its interfaith work partners with faith-related nonprofits that build communities, educate and convene public conversations across religious differences. In social justice it seeks solutions for fulfilled lives and livelihoods, with particular attention to Baltimore, and works internationally on access to health care and government accountability. Across its grantmaking, it backs innovative grantees and investees testing solutions, listens to partners and provides funding to pilot innovations and demonstrate their promise. Its work spans sub-Saharan Africa, Latin America, the Middle East and the United States, with a concentration in Baltimore.
Themes
- Water, sanitation and hygiene
- Cleaner cooking
- Ecumenical and interfaith
- Social justice
Geographic Focus
Priority: United States; Baltimore.
How to apply
The foundation states that it does not accept unsolicited requests.
Application success factors
- Repeat giving: In its TY2024 filing, 59% of its grant dollars to organisations went to organisations it had also funded in its TY2022 or TY2023 filing.
- Grant size: Across its TY2022, TY2023 and TY2024 filings, half of its 79 grants to organisations were $150,000 or less.
What the foundation says:
- It supports innovative grantees and investees as they launch and experiment with new solutions.
- It listens to its partners, including those in the early stages of their work, and funds pilots and efforts to prove solutions.
- Its interfaith partners are encouraged to pursue strategic, responsive and goal-focused work with measurable impact.
Where grants go
From grants to organisations in the foundation’s filings for tax years 2022–2024.
Grant dollars by state
6 other states: 10%
Outside the US or with no state on the filing: 13%
- The largest single recipient received 10% of grant dollars to organisations.
- In tax year 2024, 59% of grant dollars went to organisations Osprey Foundation had funded in earlier filings.
- 11% of grant dollars went directly to organisations outside the US (The Netherlands, United Kingdom, Israel, Switzerland).
- 21% of grant dollars went to intermediaries that regrant to other organisations.
Grants
How much do they typically give?
Share of 27 grants in tax year 2024 by size
Median $150k (tax year 2024)
The largest grants to organisations in the foundation’s latest filing:
- United Nations Foundation · Clean cooking alliance$790,0002024 tax year
- Irc International Water And Sanitation · Agenda for change, honduras and other programs$700,0002024 tax year
- Frontier Finance Solutions BV · Health and gender benefits$500,0002024 tax year
- Uptime Global · Piloting water safety incentives wash sector$425,0002024 tax year
- Focusing Philanthropy · Water for people rawanda and clean water for clinics and schools$403,3252024 tax year
- Johns Hopkins University · Water institute - assess household water use and health outcomes navajo nation$400,0002024 tax year
- Johns Hopkins University · Conduct water survey dine households navajo nation$350,0002024 tax year
- WaterAid America · Clean water and hygiene systems change$300,0002024 tax year
Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.
Officers and directors
- Steven Scolari — Sec / Treasurer
- Louis Boorstin — Managing Director
- William Clarke — President
From the latest Form 990-PF filing
3 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2022 tax year | $9,273,232 | $7,725,000 | $43,921,457 | Filing for 2022 tax year |
| 2023 tax year | $7,127,057 | $5,778,000 | $39,761,901 | Filing for 2023 tax year |
| 2024 tax year | $7,927,284 | $6,077,046 | $35,823,700 | Filing for 2024 tax year |
Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.
Sources
Registers and filings
Other sources
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At a glance

Applying to Osprey Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- Towson, MD
- ospreyfdn.org

Applying to Osprey Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- Towson, MD
- ospreyfdn.org