Data / Foundation grants / Tandem Philanthropies Fka the Ark Foundation
Tandem Philanthropies Fka the Ark Foundation: 11 grants to organizations, $3.9 million (tax year ended December 2024)
Tandem Philanthropies Fka the Ark Foundation, a private foundation in Menlo Park, CA, paid 11 grants to organizations totaling $3,850,000 in its tax year ended December 2024, according to its Form 990-PF filed with the IRS on November 17, 2025. The largest was $750,000 to United States Energy Foundation in San Francisco, CA for to provide general support.
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- EIN
- 384055324
- Based in
- Menlo Park, CA
- Assets
- $76,299,918
- Grants paid
- $3,850,000
- Tax year ended
- December 2024
Grants paid, tax year ended December 2024
From the Form 990-PF filed November 17, 2025, IRS object ID 202533219349101883. It reported $3,850,000 in grants paid; 11 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| United States Energy Foundation | San Francisco, CA | To provide general support | Philanthropy, voluntarism and grantmaking foundations | $750,000 | apps.irs.gov |
| Arizona State University Foundation | Tempe, AZ | To provide general support | $500,000 | apps.irs.gov | |
| Ceres | Boston, MA | To provide general support | Environment | $500,000 | apps.irs.gov |
| Health Care Without Harm | Reston, VA | To provide general support | Environment | $500,000 | apps.irs.gov |
| Silicon Schools Fund Inc | Oakland, CA | To provide general support | Education | $500,000 | apps.irs.gov |
| Educators for Excellence Inc | New York, NY | To provide general support | Education | $350,000 | apps.irs.gov |
| Transcend Inc | Hastings On Hudson, NY | To provide general support | Education | $250,000 | apps.irs.gov |
| Alder Graduate School of Education | Redwood City, CA | To provide general support | Education | $200,000 | apps.irs.gov |
| Bay Education Fund | Oakland, CA | To provide general support | Education | $100,000 | apps.irs.gov |
| Edvoice Institute | Sacramento, CA | To provide general support | $100,000 | apps.irs.gov | |
| New Schools Fund | Oakland, CA | To provide general support | Education | $100,000 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Education | $1,500,000 |
| Environment | $1,000,000 |
| Philanthropy, voluntarism and grantmaking foundations | $750,000 |
States funded
| Recipient state | Granted |
|---|---|
| California | $1,750,000 |
| New York | $600,000 |
| Arizona | $500,000 |
| Massachusetts | $500,000 |
| Virginia | $500,000 |
Also on SpecStream
- Who funds education in California
- Who funds philanthropy, voluntarism and grantmaking foundations in California
- Who funds education in New York
- Who funds environment in Massachusetts
- Who funds environment in Virginia
Updated November 17, 2025. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.