Grants paid by Curiosity Foundation Inc
EIN 47-3405081 · Newton, MA · Form 990-PF, Part XV · NTEE Q40
Curiosity Foundation Inc of Newton, MA (EIN 47-3405081) reported 90 grants paid totaling $75,575 to 50 recipients in tax years 2021–2025, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$75,575
90 grants
Recipients
50
distinct organizations
Tax years
2021–2025
5 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2021 | 14 | $0 | — |
| 2022 | 15 | $0 | — |
| 2023 | 15 | $13,800 | — |
| 2024 | 21 | $29,530 | — |
| 2025 | 25 | $32,245 | — |
Top recipients
The 50 recipients receiving the most from Curiosity Foundation Inc, by grants paid, out of 50 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| Greentown Labs | U | Somerville, MA | 2 | $55,000 | 2025 |
| Foundation for Climate Restoration 82-3487365 | C | Los Altos, CA | 3 | $5,000 | 2023 |
| Climate Emergency Fund 84-2151545 | B | West Hollywood, CA | 2 | $5,000 | 2023 |
| Fertile Edge Land Trust | U | Panonia, CO | 3 | $2,450 | 2025 |
| Me Childrens Alliance | U | Berkeley, CA | 3 | $950 | 2025 |
| Arbor Day Foundation 33-2511394 | D | Lincoln, NE | 3 | $600 | 2025 |
| Boston Symphony Orchestra 04-2103550 | C | Boston, MA | 5 | $550 | 2025 |
| Museum of Science 04-2103916 | C | Boston, MA | 5 | $500 | 2025 |
| Plymouth Center for the Arts | U | Plymouth, MA | 2 | $500 | 2023 |
| Brockton Symphony Orchestra 23-7306947 | B | Brockton, MA | 1 | $500 | 2023 |
| Rocky Mountain Institute | U | New York, NY | 1 | $500 | 2023 |
| Sabal Foundation | U | Oakland, CA | 2 | $400 | 2025 |
| Carbon 180 | U | Newark, NJ | 2 | $400 | 2025 |
| League of American Bicycllists 36-6206225 | C | Washington, DC | 5 | $375 | 2025 |
| Greenpeace 52-1541501 | B | Washington, DC | 2 | $250 | 2025 |
| River Revitalization Project 39-1887400 | D | Milwaukee, WI | 1 | $250 | 2023 |
| Heet 80-0388618 | C | Boston, MA | 1 | $250 | 2025 |
| Urban Ecology Center 39-1712663 | B | Milwaukee, WI | 1 | $250 | 2023 |
| Trees Water People 84-1462044 | C | Fort Collins, CO | 2 | $200 | 2025 |
| One Tree Planted 46-4664562 | B | Shelburn, VT | 2 | $200 | 2025 |
| War Resisters League | U | New York, NY | 3 | $200 | 2025 |
| Plowshares Fund | U | Washington, DC | 3 | $200 | 2025 |
| Trees for the Future 52-1644869 | C | Silver Springs, MD | 2 | $200 | 2025 |
| Amnesty International | U | New York, NY | 2 | $150 | 2025 |
| Boston Cyclists Union 80-0579364 | C | Roxbury, MA | 2 | $100 | 2025 |
| Green Energy Consumers Alliance 04-2791314 | C | Boston, MA | 1 | $100 | 2025 |
| Mass Peace Action 04-3082045 | B | Cambridge, MA | 2 | $100 | 2025 |
| Land Is Life 22-3101280 | C | Brooklyn, NY | 2 | $100 | 2025 |
| The Trustees | U | Boston, MA | 2 | $100 | 2025 |
| Gaza Soup Kitchen | U | Washington, DC | 1 | $100 | 2025 |
| Future Earth 81-5033986 | B | Fort Collins, CO | 1 | $50 | 2025 |
| Peg Mediacctv | U | Cambridge, MA | 2 | $50 | 2025 |
| Boston Public Library Fund 04-3150560 | C | Boston, MA | 1 | $0 | 2022 |
| National Resource Defense Fund | U | New York, NY | 1 | $0 | 2022 |
| World Wildlife Fund | U | New York, NY | 1 | $0 | 2021 |
| Aj Muste Institute | U | New York, NY | 1 | $0 | 2022 |
| Marine Conservation Institute | U | Washington, DC | 1 | $0 | 2021 |
| Project Vesta | U | Miami, FL | 1 | $0 | 2021 |
| Trust for the Public Land 23-7222333 | D | Los Angeles, CA | 1 | $0 | 2022 |
| Sierra Club Ma | U | Boston, MA | 1 | $0 | 2022 |
| War Resisters League 13-5471808 | C | New York, NY | 1 | $0 | 2021 |
| National Resource Defense Fund | U | Washington, DC | 1 | $0 | 2021 |
| Rainforest Fund 13-3710434 | C | New York, NY | 2 | $0 | 2022 |
| Environmental Defense Fund | U | Washington, DC | 1 | $0 | 2022 |
| Boston Public Library | U | Boston, MA | 1 | $0 | 2021 |
| Giving Green Fund | U | San Francisco, CA | 1 | $0 | 2022 |
| Plowshares Fund 94-2764520 | D | San Francisco, CA | 1 | $0 | 2022 |
| Plowshares Fund | U | New York, NY | 1 | $0 | 2021 |
| Sierra Club Massachusetts | U | Boston, MA | 1 | $0 | 2021 |
| Environmental Defense Fund | U | Boston, MA | 1 | $0 | 2021 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Every grant
All 90 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | Greentown Labs Somerville, MA | U | $30,000 | paid | Environmental | 202630919349100003 |
| 2025 | Sabal Foundation Oakland, CA | U | $300 | paid | Education | 202630919349100003 |
| 2025 | Me Childrens Alliance Berkeley, CA | U | $250 | paid | Peace | 202630919349100003 |
| 2025 | Fertile Edge Land Trust Panonia, CO | U | $250 | paid | Environmental | 202630919349100003 |
| 2025 | Heet Boston, MA | C | $250 | paid | Geothermal energy | 202630919349100003 |
| 2025 | Carbon 180 Newark, NJ | U | $200 | paid | Climate change | 202630919349100003 |
| 2025 | Arbor Day Foundation Lincoln, NE | D | $200 | paid | Environmental | 202630919349100003 |
| 2025 | Boston Symphony Orchestra Boston, MA | C | $150 | paid | Artistic | 202630919349100003 |
| 2025 | Gaza Soup Kitchen Washington, DC | U | $100 | paid | Humanitarian | 202630919349100003 |
| 2025 | Green Energy Consumers Alliance Boston, MA | C | $100 | paid | Renewable energy | 202630919349100003 |
| 2025 | Museum of Science Boston, MA | C | $100 | paid | Educational | 202630919349100003 |
| 2025 | League of American Bicycllists Washington, DC | C | $75 | paid | Bicycle safety | 202630919349100003 |
| 2025 | Boston Cyclists Union Roxbury, MA | C | $50 | paid | General Fund | 202630919349100003 |
| 2025 | Greenpeace Washington, DC | B | $50 | paid | General Fund | 202630919349100003 |
| 2025 | Future Earth Fort Collins, CO | B | $50 | paid | Sustainability | 202630919349100003 |
| 2025 | Mass Peace Action Cambridge, MA | B | $50 | paid | General Fund | 202630919349100003 |
| 2025 | Amnesty International New York, NY | U | $50 | paid | Humanitarian | 202630919349100003 |
| 2025 | Peg Mediacctv Cambridge, MA | U | $20 | paid | Educational | 202630919349100003 |
| 2025 | Land Is Life Brooklyn, NY | C | $0 | paid | Indigenous people | 202630919349100003 |
| 2025 | The Trustees Boston, MA | U | $0 | paid | Environmental | 202630919349100003 |
| 2025 | Plowshares Fund Washington, DC | U | $0 | paid | Peace | 202630919349100003 |
| 2025 | Trees Water People Fort Collins, CO | C | $0 | paid | Environmental health | 202630919349100003 |
| 2025 | Trees for the Future Silver Springs, MD | C | $0 | paid | Environmental | 202630919349100003 |
| 2025 | War Resisters League New York, NY | U | $0 | paid | Peace | 202630919349100003 |
| 2025 | One Tree Planted Shelburn, VT | B | $0 | paid | Environmental | 202630919349100003 |
| 2024 | Greentown Labs Somerville, MA | U | $25,000 | paid | Environmental | 202541059349100604 |
| 2024 | Fertile Edge Land Trust Panonia, CO | U | $2,000 | paid | Environmental | 202541059349100604 |
| 2024 | Arbor Day Foundation Lincoln, NE | D | $200 | paid | Environmental | 202541059349100604 |
| 2024 | Me Childrens Alliance Berkeley, CA | U | $200 | paid | Peace | 202541059349100604 |
| 2024 | Greenpeace Washington, DC | B | $200 | paid | General Fund | 202541059349100604 |
| 2024 | Boston Symphony Orchestra Boston, MA | C | $200 | paid | Artistic | 202541059349100604 |
| 2024 | Carbon 180 Newark, NJ | U | $200 | paid | Climate change | 202541059349100604 |
| 2024 | Trees Water People Fort Collins, CO | C | $200 | paid | Environmental health | 202541059349100604 |
| 2024 | One Tree Planted Shelburn, VT | B | $200 | paid | Environmental | 202541059349100604 |
| 2024 | Trees for the Future Silver Springs, MD | C | $200 | paid | Environmental | 202541059349100604 |
| 2024 | Plowshares Fund Washington, DC | U | $100 | paid | Peace | 202541059349100604 |
| 2024 | War Resisters League New York, NY | U | $100 | paid | Peace | 202541059349100604 |
| 2024 | Amnesty International New York, NY | U | $100 | paid | Humanitarian | 202541059349100604 |
| 2024 | Land Is Life Brooklyn, NY | C | $100 | paid | Indigenous people | 202541059349100604 |
| 2024 | The Trustees Boston, MA | U | $100 | paid | Environmental | 202541059349100604 |
| 2024 | Sabal Foundation Oakland, CA | U | $100 | paid | Education | 202541059349100604 |
| 2024 | League of American Bicycllists Washington, DC | C | $100 | paid | Bicycle safety | 202541059349100604 |
| 2024 | Museum of Science Boston, MA | C | $100 | paid | Educational | 202541059349100604 |
| 2024 | Mass Peace Action Cambridge, MA | B | $50 | paid | General Fund | 202541059349100604 |
| 2024 | Boston Cyclists Union Roxbury, MA | C | $50 | paid | General Fund | 202541059349100604 |
| 2024 | Peg Mediacctv Cambridge, MA | U | $30 | paid | Educational | 202541059349100604 |
| 2023 | Climate Emergency Fund West Hollywood, CA | B | $5,000 | paid | Climate Activism | 202420949349100107 |
| 2023 | Foundation for Climate Restoration Los Altos, CA | C | $5,000 | paid | Climate Change | 202420949349100107 |
| 2023 | Rocky Mountain Institute New York, NY | U | $500 | paid | Environmental | 202420949349100107 |
| 2023 | Me Children's Alliance Berkeley, CA | U | $500 | paid | Peace | 202420949349100107 |
| 2023 | Brockton Symphony Orchestra Brockton, MA | B | $500 | paid | Artistic | 202420949349100107 |
| 2023 | Plymouth Center for the Arts Plymouth, MA | U | $500 | paid | Artistic | 202420949349100107 |
| 2023 | Museum of Science Boston, MA | C | $300 | paid | Educational | 202420949349100107 |
| 2023 | River Revitalization Project Milwaukee, WI | D | $250 | paid | Environmental | 202420949349100107 |
| 2023 | Urban Ecology Center Milwaukee, WI | B | $250 | paid | Environmental | 202420949349100107 |
| 2023 | League of American Bicycllists Washington, DC | C | $200 | paid | Bicycle safety | 202420949349100107 |
| 2023 | Boston Symphony Orchestra Boston, MA | C | $200 | paid | Artistic | 202420949349100107 |
| 2023 | Fertile Edge Land Trust Panonia, CO | U | $200 | paid | Environmental | 202420949349100107 |
| 2023 | Arbor Day Foundation Lincoln, NE | D | $200 | paid | Environmental | 202420949349100107 |
| 2023 | War Resisters League New York, NY | U | $100 | paid | Peace | 202420949349100107 |
| 2023 | Plowshares Fund Washington, DC | U | $100 | paid | Peace | 202420949349100107 |
| 2022 | Environmental Defense Fund Washington, DC | U | $0 | paid | Environment | 202301119349100400 |
| 2022 | Giving Green Fund San Francisco, CA | U | $0 | paid | Environment | 202301119349100400 |
| 2022 | Aj Muste Institute New York, NY | U | $0 | paid | Peace | 202301119349100400 |
| 2022 | League of American Bicyclists Washington, DC | B | $0 | paid | Environment | 202301119349100400 |
| 2022 | Climate Emergency Fund Beverly Hills, CA | C | $0 | paid | Environment | 202301119349100400 |
| 2022 | Foundation for Climate Restoration Los Altos, CA | C | $0 | paid | Climate | 202301119349100400 |
| 2022 | Plymouth Center for the Arts Plymouth, MA | U | $0 | paid | Artistic | 202301119349100400 |
| 2022 | Museum of Science Boston, MA | C | $0 | paid | Education | 202301119349100400 |
| 2022 | Plowshares Fund San Francisco, CA | D | $0 | paid | Peace | 202301119349100400 |
| 2022 | Rainforest Fund New York, NY | C | $0 | paid | Environment | 202301119349100400 |
| 2022 | Boston Symphony Orchestra Boston, MA | C | $0 | paid | Artistic | 202301119349100400 |
| 2022 | Trust for the Public Land Los Angeles, CA | D | $0 | paid | Environment | 202301119349100400 |
| 2022 | National Resource Defense Fund New York, NY | U | $0 | paid | Environment | 202301119349100400 |
| 2022 | Sierra Club Ma Boston, MA | U | $0 | paid | Environment | 202301119349100400 |
| 2022 | Boston Public Library Fund Boston, MA | C | $0 | paid | Education | 202301119349100400 |
| 2021 | Environmental Defense Fund Boston, MA | U | $0 | paid | General Fund | 202241039349100604 |
| 2021 | Sierra Club Massachusetts Boston, MA | U | $0 | paid | General Fund | 202241039349100604 |
| 2021 | Museum of Science Boston, MA | C | $0 | paid | General Fund | 202241039349100604 |
| 2021 | League of American Bicyclists Washington, DC | C | $0 | paid | General Fund | 202241039349100604 |
| 2021 | World Wildlife Fund New York, NY | U | $0 | paid | General Fund | 202241039349100604 |
| 2021 | Rainforest Fund New York, NY | C | $0 | paid | General Fund | 202241039349100604 |
| 2021 | Plowshares Fund New York, NY | U | $0 | paid | General Fund | 202241039349100604 |
| 2021 | Marine Conservation Institute Washington, DC | U | $0 | paid | General Fund | 202241039349100604 |
| 2021 | War Resisters League New York, NY | C | $0 | paid | General Fund | 202241039349100604 |
| 2021 | Boston Symphony Orchestra Boston, MA | C | $0 | paid | General Fund | 202241039349100604 |
| 2021 | Boston Public Library Boston, MA | U | $0 | paid | General Fund | 202241039349100604 |
| 2021 | Project Vesta Miami, FL | U | $0 | paid | General Fund | 202241039349100604 |
| 2021 | National Resource Defense Fund Washington, DC | U | $0 | paid | General Fund | 202241039349100604 |
| 2021 | Foundation for Climate Restoration Mountain View, CA | C | $0 | paid | General Fund | 202241039349100604 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2025 | 2025-12-31 | not stated | 2025v4.0 | 202630919349100003 |
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.1 | 202541059349100604 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.0 | 202420949349100107 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202301119349100400 |
| 990PF | 2021 | 2021-12-31 | not stated | 2021v4.0 | 202241039349100604 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/473405081.json.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.