Mainwaring Family Foundation
Preselected recipients only
Mainwaring Family Foundation is a private foundation in Wilmington, Delaware. In tax year 2025 it gave $196,538 in 10 grants; the typical grant was $12,000 and the largest $65,000. 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$196,538
- Number of grants10
- Typical grant$12,000
- Largest grant$65,000
- Assets$24.7 million
- New grantees20%
Giving in 2025 was up from $178,112 the year before.
20% of its 2025 grantees had not received a grant from it the year before, a mix of repeat and new grantees.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $176,422 | 10 | $4.2 million |
| 2024 | $178,112 | 8 | $4.5 million |
| 2025 | $196,538 | 10 | $24.7 million |
How to apply
Mainwaring Family 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 Mainwaring Family Foundation funds
Where it gives
All of its grants went to recipients in Montana.
| State | Grants | Amount |
|---|---|---|
| Montana | 10 | $196,538 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Helena Symphony | Unrestricted gift | $65,000 |
| Holter Museum of Art | General purpose | $45,000 |
| American Prairie Foundation | General purpose | $15,000 |
| Prickly Pear Land Trust | General purpose | $15,000 |
| Helena Food Share | General purpose | $12,000 |
| Montana Food Bank Network | General purpose | $12,000 |
| Glacier Two Medicine Alliance | General purpose | $10,000 |
| Planned Parenthood of Montana | General purpose | $10,000 |
| Omerta Arts Syndicate | General | $7,538 |
| H-Town Eagles Boxing Club | General | $5,000 |
Officers and trustees
- Scott Mainwaring
- Susan Benedict
Questions people ask
Does Mainwaring Family Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does Mainwaring Family Foundation give?
$196,538 in tax year 2025, across 10 grants, with a typical grant of $12,000.
Who runs Mainwaring Family Foundation?
Its 2025 filing lists Scott Mainwaring (Trustee) and Susan Benedict (Trustee).
What does Mainwaring Family Foundation fund?
Based on its grants, mainly arts and culture and food and hunger.