The Rhombus Foundation
Invitation OnlyWilmington, Delaware · EIN 99-4031209 · Private foundation
Grants paid (2025)$334K
Organizations funded28
Typical grant$10,000
Total assets$649K
Half of its grants to organizations were between $2,500 and $10,000.
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
96% of grants went outside Delaware.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| St Vincents Academy | Newark, NJ | General & Unrestricted | $60,000 |
| Musical Dramatic Arts Foundation Inc | Marietta, GA | General & Unrestricted | $50,000 |
| Africa Research Excellence Fund (Aref Africa) | Fajara Banjul, GA | General & Unrestricted | $40,000 |
| St Vincents Academy | Newark, NJ | The Grace H. and Bernard A. Gay Scholarship fund | $20,000 |
| Ebunjan Performing Arts Association | Serekunda, GA | General & Unrestricted | $15,000 |
| Try Association of Women Oyster Sellers | Old Jeshwang, GA | General & Unrestricted | $12,000 |
| Atlas Economic Research Foundation - Atlas Network | Arlington, VA | IMANI Africa | $10,000 |
| Equal Justice Initiative | Montgomery, AL | General & Unrestricted | $10,000 |
| Hope for Haiti Inc | Naples, FL | General & Unrestricted | $10,000 |
| Human Rights Watch Inc | New York, NY | General & Unrestricted | $10,000 |
| International Crisis Group | Washington, DC | General & Unrestricted | $10,000 |
| Medecins Sans Frontieres USA Inc | Hagerstown, MD | General & Unrestricted | $10,000 |
| Panzi Foundation | Washington, DC | General & Unrestricted | $10,000 |
| Sister to Sister of Montclair Mentoring Group Inc | Montclair, NJ | College tours, workshops and CDBG | $10,000 |
| Sister to Sister of Montclair Mentoring Group Inc | Montclair, NJ | Mentor and Director stipends | $10,000 |
| Sister to Sister of Montclair Mentoring Group Inc | Montclair, NJ | General & Unrestricted | $8,000 |
| Succeed 2Gether Inc | Montclair, NJ | General & Unrestricted | $7,500 |
| International Rescue Committee | Oakland, CA | To support the Committee's relief work | $5,000 |
| Kurandza | Petaluma, CA | General & Unrestricted | $5,000 |
| Mark Cares Inc | Montclair, NJ | Kitchen project | $5,000 |
| Better Burma | Woodland Park, CO | General & Unrestricted | $2,500 |
| Justice Defenders | Claymont, DE | General & Unrestricted | $2,500 |
| Strategic Mentoring | Glen Ridge, NJ | General & Unrestricted | $2,500 |
| World Central Kitchen Incorporated | Washington, DC | To support the organization's work in Jamaica | $2,500 |
| Sister to Sister of Montclair Mentoring Group Inc | Montclair, NJ | Nursing Scholarship Fund | $2,000 |
| United Community Corporation | Newark, NJ | General & Unrestricted | $2,000 |
| Mark Cares Inc | Montclair, NJ | General & Unrestricted | $1,000 |
| Start Out Fresh Intervention Advocates | Montclair, NJ | General & Unrestricted | $1,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $333,500 | 28 |
| 2024 | $10,000 | 1 |
Sources
- IRS Form 990-PF, tax year 2025, filed Jun 12, 2026 - IRS e-file batch, object ID 202601639349101300
- IRS Tax Exempt Organization Search for EIN 99-4031209
- 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.