The Rhombus Foundation
Preselected recipients only
The Rhombus Foundation is a private foundation in Wilmington, Delaware. In tax year 2025 it gave $333,500 in 28 grants; the typical grant was $10,000 and the largest $60,000. It only gives to organizations it selects itself and does not accept unsolicited applications.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$333,500
- Number of grants28
- Typical grant$10,000
- Largest grant$60,000
- Assets$649,477
- New grantees100%
Giving in 2025 was up from $10,000 the year before.
100% of its 2025 grantees had not received a grant from it the year before, a sign it is open to new organizations.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2024 | $10,000 | 1 | $980,261 |
| 2025 | $333,500 | 28 | $649,477 |
How to apply
The Rhombus Foundation says in its IRS filing that it only makes contributions to preselected organizations, so unsolicited applications are unlikely to be considered. Organizations it funds are usually invited.
What The Rhombus Foundation funds
Where it gives
Its US grants went to recipients in 11 states, the most to New Jersey. It also paid $67,000 in 3 grants to recipients outside the US.
| State | Grants | Amount |
|---|---|---|
| New Jersey | 12 | $129,000 |
| Georgia | 1 | $50,000 |
| District of Columbia | 3 | $22,500 |
| California | 2 | $10,000 |
| Alabama | 1 | $10,000 |
| Florida | 1 | $10,000 |
| Maryland | 1 | $10,000 |
| New York | 1 | $10,000 |
| Virginia | 1 | $10,000 |
| Colorado | 1 | $2,500 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| St Vincents Academy | General & Unrestricted | $60,000 |
| Musical Dramatic Arts Foundation Inc | General & Unrestricted | $50,000 |
| Africa Research Excellence Fund (Aref Africa) | General & Unrestricted | $40,000 |
| St Vincents Academy | The Grace H. and Bernard A. Gay Scholarship fund | $20,000 |
| Ebunjan Performing Arts Association | General & Unrestricted | $15,000 |
| Try Association of Women Oyster Sellers | General & Unrestricted | $12,000 |
| Atlas Economic Research Foundation - Atlas Network | IMANI Africa | $10,000 |
| Equal Justice Initiative | General & Unrestricted | $10,000 |
| Hope for Haiti Inc | General & Unrestricted | $10,000 |
| Human Rights Watch Inc | General & Unrestricted | $10,000 |
| International Crisis Group | General & Unrestricted | $10,000 |
| Medecins Sans Frontieres USA Inc | General & Unrestricted | $10,000 |
| Panzi Foundation | General & Unrestricted | $10,000 |
| Sister to Sister of Montclair Mentoring Group Inc | College tours, workshops and CDBG | $10,000 |
| Sister to Sister of Montclair Mentoring Group Inc | Mentor and Director stipends | $10,000 |
| Sister to Sister of Montclair Mentoring Group Inc | General & Unrestricted | $8,000 |
| Succeed 2GETHER Inc | General & Unrestricted | $7,500 |
| International Rescue Committee | To support the Committee's relief work | $5,000 |
| Kurandza | General & Unrestricted | $5,000 |
| Mark Cares Inc | Kitchen project | $5,000 |
| Better Burma | General & Unrestricted | $2,500 |
| Justice Defenders | General & Unrestricted | $2,500 |
| Strategic Mentoring | General & Unrestricted | $2,500 |
| World Central Kitchen Incorporated | To support the organization's work in Jamaica | $2,500 |
| Sister to Sister of Montclair Mentoring Group Inc | Nursing Scholarship Fund | $2,000 |
| United Community Corporation | General & Unrestricted | $2,000 |
| Mark Cares Inc | General & Unrestricted | $1,000 |
| Start Out Fresh Intervention Advocates | General & Unrestricted | $1,000 |
Officers and trustees
- Omotunde AJ Mahoney
Questions people ask
Does The Rhombus Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does The Rhombus Foundation give?
$333,500 in tax year 2025, across 28 grants, with a typical grant of $10,000.
Who runs The Rhombus Foundation?
Its 2025 filing lists Omotunde AJ Mahoney (Responsible Party, Pres, Dir,).
What does The Rhombus Foundation fund?
Based on its grants, mainly international, education and arts and culture.