Updated Oct 29, 2026
Private foundations based in Longboat Key, Florida
22 grantmaking foundations headquartered in Longboat Key, Florida, holding $123M in assets. Ranked by grants paid in their latest 990-PF; 0 on this page say they accept applications. For foundations ranked by where their grants went, see local funders.
| Foundation | Grants paid | Median grant | Accepts applications | Assets |
|---|---|---|---|---|
| Purjes Foundationsince 2000 | $1.3M16 grants · 2025 | $400 | Preselected only | $12M |
| Arnold Simonsen Family Charitable Foundation Incsince 2008 | $1.1M47 grants · 2024 | $5,000 | Preselected only | $18M |
| Mirner Family Foundationsince 2016 | $763K5 grants · 2025 | $100K | Preselected only | $9.7M |
| Stone Foundation Incsince 2016 | $680K9 grants · 2025 | $40K | Preselected only | $11M |
| Robert E Dods Family Foundation Incsince 2002 | $600K66 grants · 2025 | $2,500 | Preselected only | $13M |
| Sack Family Foundationsince 1997 | $567K8 grants · 2024 | $202 | Preselected only | $2.4M |
| The Charles & Christine Shivery Foundationsince 2001 | $518K16 grants · 2025 | $7,500 | Preselected only | $5.9M |
| The Karafin Family Foundationsince 2015 | $517K15 grants · 2025 | $1,000 | Preselected only | $11M |
| McGrath Family Foundation Incsince 2023 | $464K9 grants · 2025 | $50K | Preselected only | $7.0M |
| The@alan and Terri Spoon Family Foundationsince 2003 | $396K18 grants · 2024 | $4,000 | Preselected only | $4.8M |
| Ross J Born and Wendy G Born Charitable Trustsince 1991 | $377K75 grants · 2025 | $1,000 | Preselected only | $1.5M |
| The Brunjes Family Charitable Trustsince 2012 | $345K14 grants · 2024 | $1,000 | Preselected only | $2.4M |
| Moskowitz Family Foundation Incsince 2011 | $324K6 grants · 2025 | $13K | Preselected only | $1.6M |
| Marcia and Michael Klein Foundationsince 2008 | $311K6 grants · 2025 | $45K | Preselected only | $5.0M |
| Ullmann Family Foundation Incsince 1999 | $201K12 grants · 2025 | $5,000 | Preselected only | $1.3M |
| Kimberly a Foundation Corpsince 2009 | $128K29 grants · 2025 | $2,000 | Preselected only | $2.0M |
| Mary Mooty Kileen and Tom Kileen Family Foundationsince 2021 | $125K1 grants · 2025 | $125K | Preselected only | $1.1M |
| Porter Family Foundationsince 2003 | $114K9 grants · 2025 | $5,000 | Preselected only | $2.4M |
| Braveher Foundation Incsince 2022 | $103K8 grants · 2023 | $13K | Preselected only | $1.6M |
| Daley Family Foundationsince 2014 | $98K17 grants · 2025 | $2,200 | Preselected only | $5.6M |
| Bradley Family Foundation Trustsince 2020 | $64K11 grants · 2025 | $5,000 | Preselected only | $1.3M |
| Lewis Foundationsince 1968 | $19K7 grants · 2025 | $1,300 | Preselected only | $1.1M |
Sources: IRS Business Master File (assets), ProPublica Nonprofit Explorer and IRS 990-PF e-file (grants paid, application policy). "Accepts applications" reflects the foundation's own Part XV checkbox.
Open grant programs in Florida
All 2| Deadline | Grant | Funder | Award ceiling |
|---|---|---|---|
| Rollingno deadline | Florida Division of Arts and Culture — Organizational GrantsStateFlorida Division of Arts and Culture | Florida Division of Arts and Culture | Not listed |
| Rollingno deadline | Florida Humanities — Humanities GrantsStateFlorida Humanities | Florida Humanities | Not listed |
Common questions
How many private foundations are based in Longboat Key, Florida?
Our directory lists 22 private grantmaking foundations in Longboat Key, Florida with at least $1 million in assets, holding a combined $123M. The data comes from the IRS Exempt Organizations Business Master File and Form 990-PF.
How do I get a grant from a private foundation?
Start with foundations that already fund organizations like yours nearby. Read the grantee list on each profile, check whether the foundation accepts applications (it says so on its 990-PF), and lead with a short letter of inquiry. Many family foundations fund only organizations they already know; an introduction through a shared grantee or board member works better than a cold proposal.
Can you help us approach foundations?
Yes. Our grant writers research foundation prospects, write letters of inquiry, and build a foundation fundraising plan. Request a free consultation.