Foundations that fund organizations in Sanibel, Florida

Worked out from where the grants went, not where the foundations sit.

Funding landscape for Sanibel nonprofits

142 private foundations gave $4.8M to Sanibel organizations in their latest filings; 22 of the 100 that say either way accept applications.

274 grants in total, with a typical foundation's median grant to Sanibel around $10K. 29 of these funders are based in Florida; the rest give here from elsewhere.

Foundations giving here
142
Accept applications
22
of 100 that state a policy
Dollars to Sanibel
$4.8M
latest filings
Grants
274
Typical median grant
$10K
Based in FL
29%
of funders listed

Funders, by dollars given to Sanibel organizations

FoundationBased inGrants hereDollars hereMedianAccepts applicationsTypical purposes
The Boler Family FoundationSchaumburg, IL4$618K$6,250Preselected onlyTo support the conservation of coastal habitats and aquatic…; To enrich the lives of everyone on sanibel and captiva isla…; General support
The Middendorf Family FoundationNew York, NY6$525K$88KPreselected onlyGeneral charitable purposes; General operating
Gwendolyn J McCullen Char Trust UWDallas, TX1$360K$360KPreselected onlyUnrestricted general
Wescustogo FoundationCaptiva, FL5$250K$50KPreselected onlyGeneral Support
The Orndorff Family Foundation C/O Joseph E OrndorffEstero, FL2$231K$116KPreselected onlyGeneral fund
Jenni & Kyle Foundation IncBelleville, WI3$190K$50KPreselected onlyAquarium level exhibit & youth education programs; Programs supplies summer camps lehigh acres school; Mobile lab for sea school & sccf programs
John and Engrid Meng IncDe Pere, WI5$134K$1,000Preselected onlyGeneral fund
Leslie L Alexander Foundation IncDelray Beach, FL2$125K$63KPreselected onlyAnimal rescue
Theodore L Cross Family Charitable FoundationCommack, NY2$120K$60KPreselected onlyGeneral purposes
The Aj and Lynda Scribante Charitable FoundationOmaha, NE3$104K$5,000Preselected onlyGeneral support
Dudley D & Delores R Malone Family FoundationGlen Ellyn, IL4$98K$25KPreselected onlyUnrestricted contribution in support of organization's miss…
Sargent Family FoundationWinnetka, IL4$90K$15KPreselected onlyGeneral operations
Andrea Waitt Carlton Family FoundationNashville, TN2$81K$41KYesGeneral operating support
George H and Estelle M Sands Foundation C/O Jeffrey H Sands TrusteePrinceton, NJ3$80K$20KPreselected onlyGeneral
Glenn W Bailey Charitable TrustWest Palm Beach, FL1$75K$75KPreselected onlySupport of educational exhibits and programs
The Keith Campbell Foundation for the Environment IncBethesda, MD9$75K$5,000YesGeneral support; Tax and audit prep; Principles & techniques of fundraising
Clb FoundationExcelsior, MN1$75K$75KPreselected onlyPastoral internship
Shady Rest Foundation IncFort Myers, FL1$70K$70KPreselected onlyCharitable programs
Knopf Family Foundation IncWakefield, MA1$65K$65KYesFor the sea turtle complex rehabilitation center serving so…
Filkins Family Foundation IncChicago, IL3$55K$10KPreselected onlyGeneral support
Shipley Foundation Inc #0755496Boston, MA1$50K$50KPreselected onlyAnnual fund and general operations
The Linnemann Family FoundationCincinnati, OH1$50K$50KYesGeneral support
The Sandra L Gross Family Foundation Fka the Gross/Hutton Family FoundationCincinnati, OH1$50K$50KYesUnrestricted contribution
Robert C & Jane E Holder FoundationFort Meyers, FL1$50K$50KPreselected onlyGeneral
Hanser Family FoundationFort Myers, FL8$46K$3,750Preselected onlyEducation; Conservation; Social services
The Bruning FoundationFort Myers, FL1$45K$45KPreselected onlyCharitable
The McGrath-Spellman Family FoundationSanibel, FL3$45K$20KYesPhilanthropic; Philantrhopic
Patrick and Aimee Butler FamilySt Paul, MN1$45K$45KPreselected onlyGeneral operating support
Ann H Symington Foundation Xxxxx6000Chicago, IL4$43K$10KPreselected onlyGeneral
Cegway Foundation IncCaptiva, FL2$39K$20KPreselected onlyTo further the organization's exempt purpose
Leo Rosner Foundation IncPalm Beach, FL1$35K$35KYesWeekend seminars/concert
The Seifert Family FoundationWilton, CT2$35K$18KPreselected onlyGeneral support
Lawson Family Charitable Foundation C/O John K LawsonFort Myers, FL3$33K$10KPreselected onlyGeneral fund; Conservation; Support of programs and upkeep
Solstice Charitable Foundation IncNew York, NY2$30K$15KPreselected onlyunrestricted
Coile Foundation C/O Jonathan R M CoileSeverna Park, MD6$30K$5,000Preselected onlyGeneral charity
Frank Mangano FoundationAlliance, OH3$30K$10KPreselected onlyFor operations
The Rudolph Family FoundationFort Wayne, IN7$28K$3,500Preselected onlyGeneral Support
The Hedden Family Foundation IncWoodstock, GA3$26K$10KPreselected onlyHelp wildlife; Help sanibel fl; Help people
Ttees the Edith W Mac Guire Char TrWilmington, DE2$25K$13KPreselected onlyGeneral operating
Michael & Marjory Bennett FoundationSioux City, IA1$25K$25KPreselected onlyAssistance to community
Discovering Hope FoundationAnn Arbor, MI3$24K$2,000Preselected onlySocial services for sanibel fl; Environmental conservation; National wildlife refuge
Mary E Dooner Foundation IncNaples, FL1$24K$24KPreselected onlyContribution
Sauerland FoundationMilford, OH3$23K$10KYesDonation
The Brady Hunter Foundation IncNorth Miami Beach, FL1$22K$22KPreselected onlyPayments for supporting the program
Larsen Foundation Inc C/O Porzio Bromberg & Newman PcMorristown, NJ1$20K$20KPreselected onlyGeneral support
Louis B II and Josephine L Kohn Family Foundation IncColumbia, MD1$20K$20KPreselected onlyLearning & scientific research
The Edward & Gale McBride Foundation IncFort Myers, FL1$20K$20KYesExempt function
Wilshire Charitable FoundationOklahoma City, OK2$15K$7,500YesRehab for island wildlife; Marine Research
Charles J and Marjorie Schrup Jr FamilyDubuque, IA1$15K$15KYesEnvironmental education
Keith N Browning Family Foundation C/O US Bank NaCincinnati, OH2$15K$7,500Preselected onlyProgram support
Daniel R & Anne M Harper FoundationFort Myers, FL1$15K$15KPreselected onlyGeneral ledger
David S Baum Foundation IncSanibel Island, FL2$15K$7,500Preselected onlyUnrestricted charitable gift
Rawson Charitable Foundation IncBelleair, FL2$13K$6,500Preselected onlyPrograms and Activities
Maguire and Keches Projects Foundation Charitable TrustBoston, MA3$13K$2,000Preselected onlySupport recipient's tax exemp prog; Support recipient's tax exempt prog
Hrk FoundationSt Paul, MN3$12K$5,000YesGos
Irving S Johnson and Alwyn N Johnson Family FoundationIndianapolis, IN1$12K$12KYesUnrestricted Gift
Tommy and Trudy Williams FoundationFort Myers, FL6$12K$1,000Preselected onlyCharitable; Educational
The Carmen and Jim Courter Foundation IncSanibel, FL1$10K$10KPreselected onlyArts education
Vermilion River FoundationVermilion, OH1$10K$10KPreselected onlyGeneral fund
The Kerscher Family FoundationStow, OH1$10K$10KPreselected onlyGeneral operating funds for exempt purpose
Asplundh FoundationWillow Grove, PA2$10K$5,000Preselected onlyGeneral Contributions
Gordon Family Foundation C/O TroveBoston, MA1$10K$10KPreselected onlyUnrestricted
William Raymond Motz Family Charitable TrustOneonta, NY1$10K$10KPreselected onlyGeneral purposes
Arthur K Watson Trust Xxxxx5001Chicago, IL1$10K$10KYesGeneral operating
The Rist Family Foundation C/O Brian RistFort Myers, FL1$10K$10KPreselected onlyCharitable
Leland J & Dorothy H Olson Charitable FoundationOmaha, NE1$10K$10KYesProgram support
Fred & Jean Allegretti FoundationFort Myers, FL1$10K$10KYesAnimals
Pockets - a Family FoundationHarrington Park, NJ1$10K$10KPreselected onlyGeneral purposes
Allinder-Anestis Family Charitable Fund IncAlbany, NY1$10K$10KPreselected onlyGeneral charitable purposes
Cornelia T Bailey Charitable TrustWest Palm Beach, FL1$10K$10KPreselected onlyArts music festival
The Cara Foundation (fka the Milwaukee Insurance Foundation)Brookfield, WI1$10K$10KPreselected onlyUnrestricted grant
Staritch Foundation IncSaranac Lake, NY3$9,000$2,000Preselected onlySupport of community on captiva and sanibel islands through…; Preserve the quality of the water way; Ministry
Eugene Holt Massey Charitable TrustNorfolk, VA8$9,000$1,000YesGeneral support; General operating
Howell-Adams Family Foundation C/O Charles a AdamsMattoon, IL5$8,300$1,500Preselected onlyGeneral operations
The Fernandez Family Foundation Inc C/O Hsc/Tuscan & Company PaFort Myers, FL1$8,000$8,000Preselected onlyGeneral
Joseph & Christina Mathewson Foundation C/O Reynolds SalernoAtlanta, GA1$7,671$7,671YesUnrestricted
The William R Gruver FoundationSanibel, FL1$7,500$7,500Preselected onlyTo aid in program services
Levi Ray & Shoup FoundationSpringfield, IL1$7,500$7,500Preselected onlyTo conserve and protect the j.n. "ding" darling national wi…
Hafener Charitable Foundation IncSanibel, FL8$6,850$500Preselected onlyCharitable needs
The Bodhi FoundationDayton, OH1$6,000$6,000Preselected onlyGeneral Operating Support
Kaltenmark Family Foundation IncSanibel, FL3$5,508$1,300Preselected onlyGift
Steven and Nancy Siegel Charitable TrustChicago, IL2$5,257$2,628Preselected onlyCharitable
The Sunrise FoundationSanibel, FL1$5,000$5,000Preselected onlyEducational
Grace Family Foundation IncDenver, CO1$5,000$5,000Preselected onlyEducation
Arpin Charitable Fund Inc (dba Arpin Strong)Essex, CT1$5,000$5,000YesProgram services
Dicarlo Plank FoundationBaltimore, MD1$5,000$5,000Preselected onlyUnrestricted
Mariel FoundationTraverse City, MI1$5,000$5,000Preselected onlyCharitable
The Harold and Judy McKonly Family FoundationColumbia, PA1$5,000$5,000Preselected onlySave wildlife thru op of vet clinic
George & Miriam Martin FoundationChester Springs, PA1$5,000$5,000YesSupport their work
Akc Fund IncMontclair, NJ1$5,000$5,000Preselected onlyFor rehabilitation habitats
The Walter & Jean Kalberer FoundationGates Mills, OH1$4,500$4,500Preselected onlyCharitable
Leslie S & Marcia C Ray Foundation IncBeverly, MA3$4,500$1,000Preselected onlyGeneral operating budget
Maas Foundation IncPewaukee, WI1$4,000$4,000Preselected onlyTo further organization's charitable purposes
Burt Family Foundation IncWaterford, CT1$3,500$3,500Preselected onlyGeneral purposes
The Marsal Family Foundation C/O Alvarez & Marsal IncNew York, NY1$3,000$3,000Preselected onlyFinancial support
King Spruce CompanyBoston, MA3$3,000$1,000Preselected onlyUnrestricted gift
The Carter Family FoundationWayzata, MN1$2,500$2,500YesTo support the Organizaiton's mission.
Yvonne and Phillip Dressel Foundation Irrevocable TrustSanibel, FL3$2,500$1,000Preselected onlyCharitable
The Steven E Burke and Gail S Burke FoundationPittsburgh, PA1$2,500$2,500Preselected onlyGeneral
Koven FoundationGreen Village, NJ1$2,500$2,500YesConservation

Source: IRS Form 990-PF Part XV, latest electronic return per foundation (2026-10-28). "Accepts applications" reflects the foundation's own checkbox on Part XV line 2. Grants to individuals excluded.

Common questions

Which foundations give to nonprofits in Sanibel, Florida?

The Boler Family Foundation, The Middendorf Family Foundation, Gwendolyn J McCullen Char Trust UW, Wescustogo Foundation, The Orndorff Family Foundation C/O Joseph E Orndorff and 95 others reported grants to Sanibel organizations on their latest Form 990-PF.

How do I approach a foundation that doesn't accept applications?

A foundation that checks "contributes only to preselected organizations" on its 990-PF won't review a cold proposal. Look at who it funds, find a shared board member, grantee or advisor, and ask for an introduction. Foundations that accept applications usually list a contact and deadlines in Part XV; we show that text on each foundation's page.

Is this list complete?

No. It covers private foundations (Form 990-PF filers) whose latest electronic return lists at least one grant to an organization in Sanibel. Community foundations and corporate giving programs file different forms and are not included yet.

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