Delaware · Private foundation
Mainwaring Family Foundation
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
- $197k
- Granted FY2025(still arriving)
- 10
- Grants FY2025
- 8
- Organizations funded FY2024
- 0%
- First-time grantees FY2024
- Median grant, FY2025
- $12,000
- Largest grant, FY2025
- $65,000
- Organizations funded a year
- 6 to 10
- FY2020 to FY2024
- States reached, FY2025
- 1
- Total assets, FY2025
- $19M
- Applications
- Preselected organizations only
- Per its most recent filing; check its own site
How open it is to new grantees
In FY2024, 0% of the organizations Mainwaring Family Foundation funded were first-time grantees, receiving 0% of its grant dollars.
New vs renewed · share of each year
In FY2024, 100% of grant dollars renewed an existing relationship; $0 went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
The numbers by year
| Fiscal year | Organizations funded | To those organizations | First-time grantees |
|---|---|---|---|
| FY2025still arriving | 10 | $197k | 20% |
| FY2024 | 8 | $178k | 0% |
| FY2023 | 10 | $176k | 30% |
| FY2022 | 7 | $190k | 29% |
| FY2021 | 8 | $127k | 50% |
| FY2020 | 6 | $80k | n/a |
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.
Top grantees
Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Holter Museum of Art | $270,000 | 6 | 15% |
| American Prairie Foundation | $60,000 | 5 | 0% |
| Prickly Pear Land Trust | $57,500 | 6 | 0% |
| The Glacier-Two Medicine Alliance | $45,000 | 4 | 7% |
| Helena Food Share Inc | $38,112 | 3 | 0% |
| Montana Food Bank Network Inc | $34,000 | 3 | 0% |
| Intermountain Planned Parenthood | $30,000 | 3 | 0% |
| Poverello Center Inc | $12,000 | 2 | 0% |
| Conococheague Institute For the Study of Cultural Heritage | $10,000 | 2 | 2% |
| Medecins Sans Frontieres USA Inc | $10,000 | 2 | 0% |
Show all 15 grantees
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Holter Museum of Art | $270,000 | 6 | 15% |
| American Prairie Foundation | $60,000 | 5 | 0% |
| Prickly Pear Land Trust | $57,500 | 6 | 0% |
| The Glacier-Two Medicine Alliance | $45,000 | 4 | 7% |
| Helena Food Share Inc | $38,112 | 3 | 0% |
| Montana Food Bank Network Inc | $34,000 | 3 | 0% |
| Intermountain Planned Parenthood | $30,000 | 3 | 0% |
| Poverello Center Inc | $12,000 | 2 | 0% |
| Conococheague Institute For the Study of Cultural Heritage | $10,000 | 2 | 2% |
| Medecins Sans Frontieres USA Inc | $10,000 | 2 | 0% |
| Helena Education Foundation | $10,000 | 1 | 3% |
| Omerta Arts Syndicate | $7,538 | 1 | n/a |
| Friends of Notre-Dame de Paris Inc | $5,000 | 1 | 0% |
| H-Town Eagles Boxing Club | $5,000 | 1 | n/a |
| The Angel Fund | $5,000 | 1 | 2% |
What it could do for these grantees
Plus 2 recipients with no EIN on record ($349k), not named here.
Where it is load-bearing
Each grantee by its size and the share of its budget Mainwaring Family Foundation supplied at peak.
Tap a dot to name the grantee.
How this is measured
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Montana Community Foundation Inc · First Interstate BancSystem Foundation Inc · Treacy Foundation · Dennis & Phyllis Washington Foundation · Cordingley Foundation · Helena Area Community Foundation · Speyer Family Foundation · Town Pump Charitable Foundation · M J Murdock Charitable Trust · Annie E Casey Foundation Inc · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Mainwaring Family Foundation?
Find your warmest path to Mainwaring Family Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.
About Mainwaring Family Foundation
- How much does Mainwaring Family Foundation give?
- Mainwaring Family Foundation reported 10 grants totaling $196,538 in its FY2025 IRS filing. It funded between 6 and 10 organizations a year over FY2020 to FY2024.
- What does Mainwaring Family Foundation fund?
- By grant dollars over FY2020 to FY2025, its largest causes are Arts & Culture (63%), Environment (20%), Food & Nutrition (7%).
- Who are Mainwaring Family Foundation's largest grantees?
- By total granted over FY2020 to FY2025: Holter Museum of Art ($270k), American Prairie Foundation ($60k), Prickly Pear Land Trust ($58k).
- Does Mainwaring Family Foundation fund new organizations?
- In FY2024, 0% of the organizations it funded were first-time grantees.
- Does Mainwaring Family Foundation accept unsolicited applications?
- Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
- Which funders back the same organizations as Mainwaring Family Foundation?
- Its strongest co-funders, measured against what their size predicts, include Montana Community Foundation Inc, First Interstate BancSystem Foundation Inc, Treacy Foundation.
- Where is Mainwaring Family Foundation based?
- Mainwaring Family Foundation is based in DE.
Play a game based on Mainwaring Family’s filings →