Curiosity Foundation Inc
Invitation OnlyNewton, Massachusetts · EIN 47-3405081 · Private foundation · Website
Grants paid (2025)$32K
Organizations funded18
Typical grant$100
Total assets$651K
Half of its grants to organizations were between $50 and $250.
From the return
How to apply
On its return for tax year 2025 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
64% of grants went outside Massachusetts.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Greentown Labs | Somerville, MA | Environmental | $30,000 |
| Sabal Foundation | Oakland, CA | Education | $300 |
| Fertile Edge Land Trust | Panonia, CO | Environmental | $250 |
| ME Childrens Alliance | Berkeley, CA | Peace | $250 |
| Heet | Boston, MA | Geothermal energy | $250 |
| Carbon 180 | Newark, NJ | Climate change | $200 |
| Arbor Day Foundation | Lincoln, NE | Environmental | $200 |
| Boston Symphony Orchestra | Boston, MA | Artistic | $150 |
| Museum of Science | Boston, MA | Educational | $100 |
| Green Energy Consumers Alliance | Boston, MA | Renewable energy | $100 |
| Gaza Soup Kitchen | Washington, DC | Humanitarian | $100 |
| League of American Bicycllists | Washington, DC | Bicycle safety | $75 |
| Boston Cyclists Union | Roxbury, MA | General Fund | $50 |
| Greenpeace | Washington, DC | General Fund | $50 |
| Mass Peace Action | Cambridge, MA | General Fund | $50 |
| Amnesty International | New York, NY | Humanitarian | $50 |
| Future Earth | Fort Collins, CO | Sustainability | $50 |
| Peg MediaCCTV | Cambridge, MA | Educational | $20 |
| Land is Life | Brooklyn, NY | Indigenous people | $0 |
| Trees for the Future | Silver Springs, MD | Environmental | $0 |
| Plowshares Fund | Washington, DC | Peace | $0 |
| War Resisters League | New York, NY | Peace | $0 |
| The Trustees | Boston, MA | Environmental | $0 |
| One Tree Planted | Shelburn, VT | Environmental | $0 |
| Trees Water People | Fort Collins, CO | Environmental health | $0 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $32,245 | 25 |
| 2024 | $29,530 | 21 |
| 2023 | $26,950 | 32 |
Sources
- IRS Form 990-PF, tax year 2025, filed Apr 1, 2026 - IRS e-file batch, object ID 202630919349100003
- IRS Tax Exempt Organization Search for EIN 47-3405081
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.