The Texas State Capitol

Form 990-PFTax year 2025EIN 76-0421104

Otter Island Foundation

A private foundation in Houston, TX. Its return for tax year 2025 lists 86 grants and $191,400 paid in grants.

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $191,400

    Grants listed
    86
    Assets, end of year
    $2,895,598
  • Tax year 2024

    $181,320

    Grants listed
    82
    Assets, end of year
    $2,788,509
  • Tax year 2023

    $194,563

    Grants listed
    101
    Assets, end of year
    $2,734,683
  • Tax year 2022

    $196,401

    Grants listed
    104
    Assets, end of year
    $2,823,689
  • Tax year 2021

    $181,365

    Grants listed
    105
    Assets, end of year
    $2,981,563
  • Tax year 2020

    $182,381

    Grants listed
    99
    Assets, end of year
    $2,897,713
  • Tax year 2019

    $173,342

    Grants listed
    90
    Assets, end of year
    $3,039,406
  • Tax year 2018

    $186,773

    Grants listed
    88
    Assets, end of year
    $3,007,059

Grants paid in 2025

86 grants, largest first

As listed on the return.

  1. Connecticut CollegeNew London, CT

    Education fund

    $27,000
  2. Island InstituteRockland, ME

    Annual fund campaign

    $13,500
  3. Strand TheaterBaltimore, MD

    Annual fund

    $12,000
  4. Girls Foundation of TanzaniaPortland, ME

    Annual fund

    $11,000
  5. Farnsworth Art MuseumRockland, ME

    Annual fund campaign

    $10,000
  6. Hermann Park ConservancyHouston, TX

    Annual fund campaign

    $5,500
  7. First Congregational Society of GilmantonGilmanton, NH

    Annual fund

    $5,000
  8. Penobscot Bay YMCARockport, ME

    Sustaining campaign

    $5,000
  9. Poe Elementary School PTOHouston, TX

    General fund

    $5,000
  10. San Francisco Day SchoolSan Francisco, CA

    Annual fund campaign

    $5,000
  11. Duke UniversityDurham, NC

    Education fund

    $4,500
  12. Children's Museum of HoustonHouston, TX

    Annual fund

    $4,000
  13. North Bridge AcademyMill Valley, CA

    Annual

    $4,000
  14. Annunciation Orthodox SchoolHouston, TX

    Annual fund campaign

    $3,500
  15. Cure Alzheimer's FundWellesley HLS, MA

    Medical research

    $3,000
  16. United Midcoast CharitiesCamden, ME

    Annual fund campaign

    $3,000
  17. Calvary Presbyterian ChurchSan Francisco, CA

    Annual fund campaign

    $2,500
  18. Glide FoundationSan Francisco, CA

    Annual fund campaign

    $2,500
  19. Houston Methodist Hospital FoundationHouston, TX

    Annual fund

    $2,500
  20. MD Anderson Cancer CenterHouston, TX

    Annual fund

    $2,500
  21. Planned Parenthood Federation of America IncNew York, NY

    Annual fund

    $2,500
  22. Rockwood Community ChurchRockwood, ME

    Annual fund

    $2,500
  23. American Civil Liberties Union FoundationNew York, NY

    Annual fund

    $2,000
  24. Groton SchoolGroton, MA

    Annual fund campaign

    $2,000
  25. Mothers Against Media AddictionNew York, NY

    Annual fund

    $2,000
  26. Colorado Gives FoundationArvada, CO

    Annual fund

    $1,500
  27. Lawndale Art CenterHouston, TX

    Annual fund

    $1,500
  28. Northern Light Ca Dean Hospital FoundationBrewer, ME

    Annual fund

    $1,500
  29. Pen Bay Waldo Healthcare FoundationTorrance, CA

    Annual fund

    $1,500
  30. St George's SchoolMiddletown, RI

    Scholarship, annual fund campaign

    $1,500
  31. Friends of BoulderBoulder, MT

    Annual fund

    $1,350
  32. Alley TheatreHouston, TX

    Annual fund campaign

    $1,000
  33. Alzheimer's Foundation of AmericaNew York, NY

    Annual fund campaign

    $1,000
  34. Astrodome ConservancyHouston, TX

    Annual fund

    $1,000
  35. Berkley Repertory TheaterBerkley, CA

    Annual fund

    $1,000
  36. Boulder BalletBoulder, CO

    Annual fund

    $1,000
  37. Camden Public LibraryCamden, ME

    Annual fund campaign

    $1,000
  38. Center for Maine Contemporary ArtRockland, ME

    Annual fund campaign

    $1,000
  39. Church of ChristHolden, MO

    Annual fund

    $1,000
  40. Coastal Mountains Land TrustCamden, ME

    Annual fund campaign

    $1,000
  41. Colorado CollegeColorado SPGS, CO

    Annual fund campaign

    $1,000
  42. Curry School of Education FoundationCharlottesville, VA

    Education fund

    $1,000
  43. Equal Justice InitiativeMontgomery, AL

    Annual fund campaign

    $1,000
  44. Everytown for Gun Safety Support FundNew York, NY

    Grant for the support fund

    $1,000
  45. Houston Public Media FoundationHouston, TX

    Annual fund campaign

    $1,000
  46. Impact on EducationLouisville, CO

    Annual fund campaign

    $1,000
  47. International Rett Syndrome FoundationCincinnati, OH

    Annual fund campaign

    $1,000
  48. KqedSan Francisco, CA

    Annual fund

    $1,000
  49. Lanier PTOHouston, TX

    General fund

    $1,000
  50. Maine Coast Heritage TrustTopsham, ME

    Annual fund campaign

    $1,000
  51. Maysles Institute IncNew York, NY

    Annual fund campaign

    $1,000
  52. Montpelier - the General Henry Knox MuseumThomaston, ME

    Annual fund campaign

    $1,000
  53. Pomfret SchoolPomfret, CT

    Annual fund campaign

    $1,000
  54. Rockport Public LibraryRockport, ME

    Annual fund

    $1,000
  55. Smith CollegeNorthampton, MA

    Annual fund campaign

    $1,000
  56. Texas Christion UniversityFort Worth, TX

    Annual fund campaign

    $1,000
  57. Trees for HoustonbocaHouston, TX

    Annual fund campaign

    $1,000
  58. UT HealthHouston, TX

    Student assistance fund

    $1,000
  59. Vanderbilt UniversityNashville, TN

    Peabody college of education and human development

    $1,000
  60. Friends of Fleming ParkHouston, TX

    Annual fund campaign

    $800
  61. Friends of BcsisBoulder, CO

    Annual fund

    $750
  62. NPR NetworkWashington, DC

    Annual fund

    $750
  63. Alford Lake CampCape Elizabeth, ME

    Scholarships

    $500
  64. Bay Chamber ConcertsCamden, ME

    Annual fund campaign

    $500
  65. Boulder Library FoundationBoulder, CO

    Annual fund

    $500
  66. Boulder Philharmonic OrchestraBoulder, CO

    Annual fund

    $500
  67. Buffalo Bayou PartnershipHouston, TX

    Annual fund campaign

    $500
  68. Children's Hospital Colorado FoundationAurora, CO

    Annual fund

    $500
  69. Common Sense MediaSan Francisco, CA

    Annual fund

    $500
  70. Community Food ShareLouisville, CO

    Annual fund

    $500
  71. First Congregational ChurchLoveland, CO

    Annual fund

    $500
  72. Friends of Arches & Canyonlands ParksMoab, UT

    Annual fund campaign

    $500
  73. Homeless Prenatal ProgramSan Francisco, CA

    Annual fund

    $500
  74. New York Yacht Club FoundationNew York, NY

    Annual fund campaign

    $500
  75. San Francisco FoundationSan Francisco, CA

    Annual fund

    $500
  76. There with CareBoulder, CO

    Annual fund

    $500
  77. Vinal Haven Land TrustVinalhaven, ME

    Annual fund

    $500
  78. VoteorgWashington, DC

    Annual fund

    $500
  79. We Win InstituteMinneapolis, MN

    Annual fund

    $500
  80. La Casa de Las MadresSan Francisco, CA

    Annual fund campaign

    $250
  81. Maine Media Workshops and CollegeRockport, ME

    Annual fund campaign

    $250
  82. Maine Sea Coast MissionBar Harbor, ME

    Annual fund campaign

    $250
  83. Max Warburg Courage Curriculum IncBoston, MA

    Annual fund

    $250
  84. Merryspring Nature CenterCamden, ME

    Annual fund campaign

    $250
  85. Pizza to the PollsPortland, OR

    Annual fund

    $250
  86. San Francisco Marin Food BankSan Francisco, CA

    Annual fund campaign

    $250

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Education14 grants $64,25051% of the total
  2. Human services3 grants $16,50013% of the total
  3. Arts and culture11 grants $12,50010% of the total
  4. Environment5 grants $8,5007% of the total
  5. Health5 grants $7,0006% of the total
  6. Philanthropy and grantmaking3 grants $5,0004% of the total
  7. 6 other causes10 grants $12,25010% of the total

By State

Grants to organizations with a US address, latest year.

  1. Maine19 grants $54,750
  2. Texas16 grants $32,800
  3. Connecticut2 grants $28,000
  4. California12 grants $19,500
  5. Maryland1 grant $12,000
  6. New York7 grants $10,000
  7. Colorado11 grants $8,250
  8. Massachusetts4 grants $6,250
  9. New Hampshire1 grant $5,000
  10. North Carolina1 grant $4,500

Officers, directors and trustees

6 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Ellen CL SimmonsPRESIDENT,VP,TREASURER Hours 0Pay $0
  • Wheeler Es GriffithEXECUTIVE DIRECTOR Hours 10Pay $25,000
  • Abby S WalkerDIRECTOR Hours 0Pay $0
  • Emma A Simmons AnselmiDIRECTOR Hours 0Pay $0
  • Winnie B Simmons PhillipsDIRECTOR Hours 0Pay $0
  • Lydia F SimmonsDIRECTOR Hours 0Pay $0

The return

More foundations

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  4. E & M Foundation IncHouston, TX 10 grants Preselected only $181,176 giving
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