A river running through a deep pine forest valley
Foundation Lookup

Grant recipient EIN 91-0613583Environment

Who funds Arboretum Foundation?

43 private foundations gave Arboretum Foundation in Seattle, WA $7 million across 123 grants, in tax years 2018 to 2025.

See which foundations fund work like yours Matching by cause, place and grant size

Grants listed on funders’ 990-PF returns for tax years 2018 to 2025, read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

Grants received by year

Grants from private foundations by the funder’s tax year. The latest year is in blue; it is not complete until all its returns reach the IRS.

Every foundation grant, by year

123 grants

Each line as the funder listed it on its return, newest year first, then largest.

  1. Farallon FoundationPleasanton, CA 2025

    Environment Protection

    $86,000
  2. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA 2025

    Miller seed vault:wa rare plant care & conservation program

    $41,000
  3. Peach FoundationConway, WA 2025

    Environmental work

    $30,000
  4. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA 2025

    Garden stewards volunteer program

    $12,650
  5. Larry Benaroya Family FoundationMercer Island, WA 2025

    Unrestricted

    $10,000
  6. Juniper FoundationSeattle, WA 2025

    General support

    $10,000
  7. Juniper FoundationSeattle, WA 2025

    Fiddleheads program

    $10,000
  8. Juniper FoundationSeattle, WA 2025

    Fiddleheads forest school

    $10,000
  9. Janet Wright Ketcham FoundationSeattle, WA 2025

    To provide support to exempt organization

    $5,000
  10. Nolan Family Foundation IncSeattle, WA 2025

    General operating

    $2,500
  11. Glein Family FoundationGig Harbor, WA 2025

    Conservation and education

    $2,000
  12. The Rouse Family Foundation IncUpperco, MD 2025

    Unrestricted

    $1,500
  13. Keith & Mary Kay McCaw Family FoundSeattle, WA 2025

    Perserving arboretum

    $1,000
  14. Baird Foundation IncMilwaukee, WI 2025

    Environment

    $50
  15. The Aldarra FoundationSeattle, WA 2024

    Various projects

    $2,200,000
  16. William A Looney Family FoundationSeattle, WA 2024

    to support the Pavilion Project at the Seattle Japanese Garden

    $100,000
  17. Islands FundBoise, ID 2024

    Environmental education programs for schools

    $70,000
  18. Farallon FoundationPleasanton, CA 2024

    Environment Protection

    $55,000
  19. WWW FoundationPasadena, CA 2024

    Washington park arboretum

    $30,000
  20. Marie Lamfrom Charitable Foundation TrustWilsonville, OR 2024

    Restricted programming (rose grant)

    $20,000
  21. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA 2024

    Garden stewards volunteer program.

    $12,500
  22. Juniper FoundationSeattle, WA 2024

    Fiddleheads forest school

    $12,000
  23. Nolan Family Foundation IncSeattle, WA 2024

    General operating

    $5,000
  24. Glein Family FoundationGig Harbor, WA 2024

    Conservation and education

    $2,000
  25. The Alben FoundationSeattle, WA 2024

    Continue foundation's mission

    $2,000
  26. Wyman Youth TrustSeattle, WA 2024

    Civic

    $1,750
  27. The Rouse Family Foundation IncUpperco, MD 2024

    Unrestricted

    $1,500
  28. Norman Raab FoundationSeattle, WA 2024

    Education

    $1,000
  29. Owen M Johnson Family FoundationPotomac, MD 2024

    Donation

    $1,000
  30. Raven Trust FundSeattle, WA 2024

    General support for all public charities

    $1,000
  31. Barton Family FoundationFederal Way, WA 2024

    General and unrestricted

    $1,000
  32. Norberg Family FoundationSeattle, WA 2024

    Financial support

    $500
  33. The Journal of Bone and Joint Surgery IncNeedham, MA 2024

    Employee donation match

    $100
  34. Baird Foundation IncMilwaukee, WI 2024

    Environment

    $50
  35. The Aldarra FoundationSeattle, WA 2023

    Various projects

    $1,080,000
  36. The Aldarra FoundationSeattle, WA 2023

    Various projects

    $630,000
  37. Islands FundBoise, ID 2023

    Environmental education programs for schools

    $70,000
  38. WWW FoundationPasadena, CA 2023

    General operating support

    $40,000
  39. Farallon FoundationPleasanton, CA 2023

    Environment Protection

    $26,000
  40. Peach FoundationConway, WA 2023

    Environmental work

    $20,000
  41. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA 2023

    Garden stewards program

    $12,000
  42. Apex FoundationBellevue, WA 2023

    Memorial gift

    $2,500
  43. Glein Family FoundationGig Harbor, WA 2023

    Conservation and education

    $2,000
  44. The Rouse Family Foundation IncUpperco, MD 2023

    Unrestricted

    $1,500
  45. Norman Raab FoundationSeattle, WA 2023

    Education

    $1,000
  46. Raven Trust FundSeattle, WA 2023

    General support for all public charities

    $1,000
  47. Keith & Mary Kay McCaw Family FoundSeattle, WA 2023

    Land conservation

    $1,000
  48. McEachern Foundation-TrPittsburgh, PA 2023

    General operating

    $750
  49. Norberg Family FoundationSeattle, WA 2023

    Financial support

    $500
  50. Amazonsmile FoundationSeattle, WA 2023

    General support

    $99
  51. The Aldarra FoundationSeattle, WA 2022

    Various arboretum programs

    $873,985
  52. Islands FundBoise, ID 2022

    Environmental education programs for schools

    $70,000
  53. Farallon FoundationPleasanton, CA 2022

    Environment Protection

    $26,000
  54. WWW FoundationPasadena, CA 2022

    Washington park arboretum - general operating support

    $20,000
  55. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA 2022

    Garden stewards program

    $12,000
  56. Apex FoundationBellevue, WA 2022

    Greatest need/ unrestricted support

    $5,000
  57. Glein Family FoundationGig Harbor, WA 2022

    Conservation and education

    $2,500
  58. The Rouse Family Foundation IncUpperco, MD 2022

    Unrestricted

    $1,500
  59. Norman Raab FoundationSeattle, WA 2022

    Education

    $1,000
  60. Raven Trust FundSeattle, WA 2022

    General support for all public charities

    $1,000
  61. Keith & Mary Kay McCaw Family FoundSeattle, WA 2022

    Land conservation

    $1,000
  62. McEachern Foundation-TrPittsburgh, PA 2022

    General operating

    $500
  63. Amazonsmile FoundationSeattle, WA 2022

    General support

    $136
  64. Chubb Charitable FoundationPhiladelphia, PA 2022

    Matching Gifts

    $100
  65. Chubb Charitable FoundationPhiladelphia, PA 2022

    Matching Gifts

    $100
  66. Steiner-Helsby Family FoundationSeattle, WA 2022

    General support

    $100
  67. The Franklin FundNew York, NY 2022

    General

    $50
  68. The Aldarra FoundationSeattle, WA 2021

    Various programs

    $585,000
  69. Islands FundBoise, ID 2021

    Environmental education programs for schools

    $65,000
  70. Farallon FoundationPleasanton, CA 2021

    Environment Protection

    $26,000
  71. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA 2021

    Garden stewards program and rhododendron glen renovation.

    $13,500
  72. Henry E & Consuelo S Wenger Foundation IncWhite Lake, MI 2021

    Support arborist &tree care prog andenvir education

    $10,000
  73. The Hugh and Jane Ferguson FoundationSeattle, WA 2021

    Healing a historic stream & community stewards

    $7,500
  74. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA 2021

    National plant collections fund

    $5,000
  75. Apex FoundationBellevue, WA 2021

    Greatest need/ unrestricted support

    $5,000
  76. Glein Family FoundationGig Harbor, WA 2021

    Conservation and education

    $3,000
  77. Larry Benaroya Family FoundationMercer Island, WA 2021

    Unrestricted

    $2,500
  78. The Rouse Family Foundation IncUpperco, MD 2021

    Unrestricted

    $1,500
  79. Norman Raab FoundationSeattle, WA 2021

    Education

    $1,000
  80. Raven Trust FundSeattle, WA 2021

    General support for all public charities

    $1,000
  81. Keith & Mary Kay McCaw Family FoundSeattle, WA 2021

    Land conservation

    $1,000
  82. WWW FoundationPasadena, CA 2021

    General operating support

    $1,000
  83. Nakajima FoundationWilmington, DE 2021

    General & Unrestricted

    $500
  84. Steiner-Helsby Family FoundationSeattle, WA 2021

    General support

    $250
  85. Amazonsmile FoundationSeattle, WA 2021

    General support

    $162
  86. Chubb Charitable FoundationPhiladelphia, PA 2021

    Matching Gifts

    $100
  87. The Aldarra FoundationSeattle, WA 2020

    Various programs

    $153,000
  88. Islands FundBoise, ID 2020

    Environmental education programs

    $65,000
  89. Farallon FoundationPleasanton, CA 2020

    Environment Protection

    $36,000
  90. WWW FoundationPasadena, CA 2020

    General operating support

    $15,000
  91. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA 2020

    Garden stewards program and camelia collection area improvements

    $13,500
  92. Apex FoundationBellevue, WA 2020

    Greatest need/ unrestricted support

    $5,000
  93. The Rouse Family Foundation IncUpperco, MD 2020

    Unrestricted

    $2,500
  94. The Lewis Greenwood FoundationNewbury Park, CA 2020

    Charitable

    $2,500
  95. Glassybaby White Light FundSeattle, WA 2020

    General support

    $2,000
  96. Larry Benaroya Family FoundationMercer Island, WA 2020

    Unrestricted

    $1,000
  97. Norman Raab FoundationSeattle, WA 2020

    Education

    $1,000
  98. Lucky Seven FoundationWilmington, DE 2020

    Saplings Program

    $1,000
  99. Raven Trust FundSeattle, WA 2020

    General support for all public charities

    $1,000
  100. Keith & Mary Kay McCaw Family FoundSeattle, WA 2020

    Land conservation

    $1,000
  101. D&P Roberts Family FoundationWilmington, DE 2020

    General & Unrestricted

    $500
  102. Steiner-Helsby Family FoundationSeattle, WA 2020

    General support

    $250
  103. Wyman Youth TrustSeattle, WA 2020

    Civic

    $250
  104. Motorola Solutions FoundationChicago, IL 2020

    General Operating Support

    $210
  105. Amazonsmile FoundationSeattle, WA 2020

    General support

    $120
  106. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA 2019

    Garden stewards program

    $14,400
  107. WWW FoundationPasadena, CA 2019

    General operating support

    $10,000
  108. The Hugh and Jane Ferguson FoundationSeattle, WA 2019

    Restoration of ower creak channel in woodland pond

    $8,500
  109. Lucky Seven FoundationWilmington, DE 2019

    The Washington Park Arboretum's Environmental Education program

    $7,500
  110. Norman Raab FoundationSeattle, WA 2019

    Education

    $1,000
  111. D&P Roberts Family FoundationWilmington, DE 2019

    General & Unrestricted

    $1,000
  112. Mirowski Family Foundation IncIndianapolis, IN 2019

    General

    $1,000
  113. Keith & Mary Kay McCaw Family FoundSeattle, WA 2019

    Land conservation

    $1,000
  114. The W FoundationSeattle, WA 2019

    Social Services

    $1,000
  115. Whatley FoundationSeattle, WA 2019

    Environmentatl conservation

    $500
  116. Lucky Seven FoundationWilmington, DE 2019

    Sapling program

    $500
  117. Chubb Charitable FoundationPhiladelphia, PA 2019

    matching gifts

    $100
  118. The Aldarra FoundationSeattle, WA 2018

    Arborist program

    $275,000
  119. WWW FoundationPasadena, CA 2018

    General operating support

    $10,000
  120. Dudley T Dougherty Foundation IncIssaquah, WA 2018

    Evironmental education

    $5,000
  121. The W FoundationSeattle, WA 2018

    Social Services

    $1,325
  122. Donald Family FoundationSeattle, WA 2018

    Environment

    $1,100
  123. Keith & Mary Kay McCaw Family FoundSeattle, WA 2018

    Land conservation

    $1,000

Funders of similar organizations nearby

Foundations that gave to other environment organizations in Seattle, WA and are not among Arboretum Foundation’s funders above.

  1. The Bullitt FoundationSeattle, WA 113 grants Preselected only $5,516,980 to similar organizations
  2. PatagoniaorgVentura, CA 57 grants Preselected only $1,023,323 to similar organizations
  3. The Norcliffe FoundationSeattle, WA 32 grants Accepts applications $845,000 to similar organizations
  4. The Russell Family FoundationGig Harbor, WA 63 grants Accepts applications $1,972,262 to similar organizations
  5. Puget Sound Energy FoundationWilmington, DE 39 grants Preselected only $308,468 to similar organizations
  6. Stolte Family FoundationSeattle, WA 66 grants Preselected only $4,616,215 to similar organizations
  7. The Satterberg Foundation IncSeattle, WA 48 grants Accepts applications $4,027,250 to similar organizations
  8. Grousemont FoundationSeattle, WA 31 grants Preselected only $2,140,500 to similar organizations

About this match

Funders write a recipient’s name and address, not its EIN. We matched these grants to EIN 91-0613583 by name and ZIP code, or by name, city and State against the IRS list of exempt organizations and our list of filers. Grants we could not tie to one organization are not counted here.