Mainwaring Family Foundation
Grantmaking foundation in Wilmington, Delaware · EIN 82-2289585
- Delaware
- Wilmington
- Philanthropy, Voluntarism and Grantmaking Foundations
- Philanthropy, Voluntarism and Grantmaking Foundations in Delaware
- Grants itemized on the 990
- $200KTax year 2025
- Grants made
- 10Tax year 2025
- Total assets
- $19MLatest reported
- Latest IRS filing
- 2025Form 990 / 990-PF
Mission
NONE
Giving by year
Totals by tax year, rounded to two significant figures. Years without a reported total show the sum of grants itemized on the filing.
Top recipients
| Recipient | Amount | Tax year |
|---|---|---|
| Helena Symphony | $65K | 2025 |
| Holter Museum of Art | $45K | 2025 |
| American Prairie Foundation | $15K | 2025 |
| Prickly Pear Land Trust | $15K | 2025 |
| Helena Food Share | $12K | 2025 |
Amounts are rounded. The full grantee list (10 grants in 2025) is available with a free account.
See the full profile. All grants with amounts and years, board and officers, contact details, giving patterns and your organization's fit score are available with a free GrantAuthority account.
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Source: IRS Form 990 and 990-PF filings, tax year 2025. Also see this organization on ProPublica Nonprofit Explorer.