Foundations · IRS 990 filings

Foundations in Longboat Key, Florida

48
foundations with a Longboat Key address
$14.2M
grants paid, FY2023–FY2025
6
say they accept unsolicited
$3,250
median grant

Grantlas lists 48 private foundations that gave a Longboat Key, Florida address on their 990-PF, from filings for FY2023–FY2025. Together they paid out $14.2 million in grants in their latest filing year, and 6 of them (13%) say they accept unsolicited requests.

Not every foundation here is a Longboat Key foundation. The city is the mailing address on the foundation’s tax filing, and when a bank or a law firm runs the trust that is the bank’s address, not the place it gives to. Check where a foundation gives before you write.

Top 25 of 48 foundations

Ranked by what they paid in grants in their latest filing, with the ones that accept unsolicited requests first.

Foundations in Longboat Key, Florida
Pierre and Kathryn McCormick FamilyAccepts$25,000$100,000$25,000–$50,000FY2024Locked: fit score and contacts
Thomas V Guarino Family FoundationAccepts$100$71,196$20–$20,000FY2025Locked: fit score and contacts
William B Murphy Thrive Foundation IncAccepts$50$12,700$50–$10,000FY2024Locked: fit score and contacts
The Rosenfield Family FoundationAccepts$6,804$6,804—FY2025Locked: fit score and contacts
Bosma and Ralston Family FoundationAccepts$2,250$5,250$250–$5,000FY2024Locked: fit score and contacts
The Holland Foundation IncAccepts$1,135$3,855$86–$2,500FY2025Locked: fit score and contacts
The Samowitz FoundationInvitation only$2.2M$2.3M$2.1M–$2.3MFY2025Locked: fit score and contacts
Purjes FoundationInvitation only$300$1.3M$50–$1MFY2025Locked: fit score and contacts
Arnold Simonsen Family CharitableInvitation only$5,000$1.1M$1,000–$125,000FY2024Locked: fit score and contacts
Mirner Family FoundationInvitation only$55,000$763,465$30,000–$433,465FY2025Locked: fit score and contacts
The Stone Foundation IncInvitation only$50,000$680,000$25,000–$164,000FY2025Locked: fit score and contacts
Ronald and Geri Yonover FoundationInvitation only$5,000$648,000$500–$222,000FY2025Locked: fit score and contacts
Hawks Family FoundationInvitation only$1,000$601,450$500–$250,000FY2024Locked: fit score and contacts
Robert E Dods Family Foundation IncInvitation only$2,500$599,725$200–$150,000FY2025Locked: fit score and contacts
Sack Family Foundation Irrevocable TrustInvitation only$203$566,530$25–$564,000FY2024Locked: fit score and contacts
The Charles & Christine ShiveryInvitation only$10,000$518,000$1,000–$200,000FY2025Locked: fit score and contacts
The Karafin Family FoundationInvitation only$1,000$517,245$100–$160,000FY2025Locked: fit score and contacts
McGrath Family Foundation IncInvitation only$50,000$464,000$6,500–$120,000FY2025Locked: fit score and contacts
Alan and Terri SpoonInvitation only$4,000$395,843$100–$203,200FY2024Locked: fit score and contacts
Ross J Born and Wendy G Born Charitable TrustInvitation only$1,000$377,468$50–$115,000FY2025Locked: fit score and contacts
The Brunjes Family Charitable TrustInvitation only$1,000$344,977$250–$228,512FY2024Locked: fit score and contacts
Akhoury Foundation IncInvitation only$4,200$326,810$150–$35,000FY2024Locked: fit score and contacts
The Moskowitz Family Foundation IncInvitation only$15,000$324,076$180–$271,396FY2025Locked: fit score and contacts
The Marcia & Michael Klein FoundationInvitation only$45,000$311,000$25,000–$91,000FY2025Locked: fit score and contacts
The Ullmann Family FoundationInvitation only$5,000$200,900$1,954–$125,900FY2025Locked: fit score and contacts
  • Median grant and grant range come from the 990-PF grant schedule; a dash means there is none to report.
  • “One grant” means a schedule with a single grant — no median, nothing to range over. “One amount” means several grants, all the same size.

23 more foundations — see all in Grantlas

Data from 990-PF filings, FY2023–FY2025. Updated November 8, 2026.