The Olsen Foundation a New Jersey Nonprofit Corporation
Historical FunderPrinceton, New Jersey · EIN 26-0029441 · Private foundation
Half of its grants to organizations were between $2,000 and $5,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | GREGORY H OLSEN |
|---|---|
| Address | 174 NASSAU ST 272, PRINCETON NJ 08542 |
| Phone | 6094664661 |
| Form and materials | LETTER |
| Deadlines | NONE |
| Restrictions | NONE |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
44% of grants went outside New Jersey.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Navy Seal Foundation | Virgina Beach, VA | Assistance for charitable purpose | $15,000 |
| Culture Is Key | Trenton, NJ | Assistance for charitable purpose | $10,000 |
| Grounds for Sculpture | Hamilton, NJ | Assistance for charitable purpose | $10,000 |
| Rider University | Lawrenceville, NJ | Assistance for charitable purpose | $10,000 |
| University of Michigan | Ann Arbor, MI | Assistance for charitable purpose | $10,000 |
| Rare Book School | Charlottsville, VA | Assistance for charitable purpose | $10,000 |
| Energy Share of Montana Inc | Helena, MT | Assistance for charitable purpose | $5,000 |
| Explore Mars | Washington, DC | Assistance for charitable purpose | $5,000 |
| Fdny Foundation | Brooklyn, NY | Assistance for charitable purpose | $5,000 |
| Lustgarten Foundation | Uniondale, NY | Assistance for charitable purpose | $5,000 |
| Parkinson Association of the Rockies | Denver, CO | Assistance for charitable purpose | $5,000 |
| Princton First Aid & Rescue Squad | Princeton, NJ | Assistance for charitable purpose | $5,000 |
| Mccarter Theatre Center | Princeton, NJ | Assistance for charitable purpose | $3,000 |
| Shine and Inspire | Pennington, NJ | Assistance for charitable purpose | $3,000 |
| James R Halsey Foundation of the Arts | Trenton, NJ | Assistance for charitable purpose | $2,500 |
| The Wounded Blue | Las Vegas, NV | Assistance for charitable purpose | $2,500 |
| Dress for Success | Lawrenceville, NJ | Assistance for charitable purpose | $2,000 |
| Montgomery Township Ems | Belle Mead, NJ | Assistance for charitable purpose | $2,000 |
| Montgomery Township Vol Fire Co | Skillman, NJ | Assistance for charitable purpose | $2,000 |
| Nhs Tough Techs 151 Boosters | Nashua, NH | Assistance for charitable purpose | $2,000 |
| Princeton Police | Princeton, NJ | Assistance for charitable purpose | $2,000 |
| Ieee Foundation | Piscataway, NJ | Assistance for charitable purpose | $1,000 |
| Monmouth Park Charity Fund | Oceanport, NJ | Assistance for charitable purpose | $1,000 |
| National Academy of Engineering | Washington, DC | Assistance for charitable purpose | $1,000 |
| Nj Golf Foundation | Piscataway, NJ | Assistance for charitable purpose | $1,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $120,000 | 25 |
| 2024 | $98,120 | 24 |
| 2023 | $203,700 | 25 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 7, 2026 - IRS e-file batch, object ID 202641279349100719
- IRS Tax Exempt Organization Search for EIN 26-0029441
- 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.