Arboretum Foundation
Funding Overview
From IRS Form 990 filings · 2020–2025
Total received
$7.2M
Foundation funders
46
Grants recorded
149
Years covered
2020–2025
Who funds Arboretum Foundation?
Arboretum Foundation is funded by 46 grantmakers, led by The Aldarra Foundation ($5.5M), Islands Fund ($340K), Seattle Foundation ($300K). In total, IRS Form 990 filings record $7.2M in grants to Arboretum Foundation between 2020–2025.
Show all 46 funders
| The Us Charitable Gift Trust | $6,500 | 1 | 2024 |
| Owen M Johnson Family Foundation | $5,000 | 5 | 2021–2025 |
| Raven Trust Fund | $5,000 | 5 | 2020–2024 |
| Norman Raab Foundation | $5,000 | 5 | 2020–2024 |
| Keith & Mary Kay Mccaw Family Found | $4,000 | 4 | 2020–2023 |
| Larry Benaroya Family Foundation | $3,500 | 2 | 2020–2021 |
| The Lewis Greenwood Foundation | $2,500 | 1 | 2020 |
| Wyman Youth Trust | $2,000 | 2 | 2020–2024 |
| Christen C and Ben H Garrett | $2,000 | 2 | 2020–2022 |
| Glassybaby White Light Fund | $2,000 | 1 | 2020 |
| Mceachern Foundation-tr | $1,250 | 2 | 2023–2024 |
| Norberg Family Foundation | $1,000 | 2 | 2023–2024 |
| Lucky Seven Foundation | $1,000 | 1 | 2020 |
| Nakajima Foundation | $500 | 1 | 2021 |
| D&P Roberts Family Foundation | $500 | 1 | 2020 |
| Chubb Charitable Foundation | $300 | 3 | 2021–2022 |
| Motorola Solutions Foundation | $210 | 1 | 2020 |
| The Journal of Bone and Joint | $100 | 1 | 2024 |
| Steiner-helsby | $100 | 1 | 2023 |
| Baird Foundation Inc | $50 | 1 | 2024 |
| The Franklin Fund | $50 | 1 | 2023 |
Funding over time
Grant dollars and counts received per year
What grants has Arboretum Foundation received?
Individual grants from IRS Form 990 filings, newest first
| Year | Funder | Purpose | Amount |
|---|---|---|---|
| 2025 | Owen M Johnson Family Foundation | DONATION | $1,000 |
| 2024 | The Aldarra Foundation | VARIOUS PROJECTS | $2,200,000 |
| 2024 | Seattle Foundation | CIVIC AND CULTURAL PROGRAMMING | $100,000 |
| 2024 | John Jewett & Helen Chandler Garland Fou | Visitor Plaza Project | $100,000 |
| 2024 | William a Looney Family Foundation | to support the Pavilion Project at the Seattle Japanese Garden | $100,000 |
| 2024 | Islands Fund | ENVIRONMENTAL EDUCATION PROGRAMS FOR SCHOOLS | $70,000 |
| 2024 | Farallon Foundation | Environment Protection | $55,000 |
| 2024 | Www Foundation | WASHINGTON PARK ARBORETUM | $30,000 |
| 2024 | Seattle Foundation | FOR THE ARBORIST/HORTICULTURE PROGRAM | $30,000 |
| 2024 | Gs Donor Advised Philanthropy Fund | ENVIRONMENT & ANIMAL PROTECTION | $20,000 |
| 2024 | Marie Lamfrom Charitable Foundation | RESTRICTED PROGRAMMING (ROSE GRANT) | $20,000 |
| 2024 | Pendleton and Elisabeth Carey Miller | GARDEN STEWARDS VOLUNTEER PROGRAM. | $12,500 |
| 2024 | Juniper Foundation | FIDDLEHEADS FOREST SCHOOL | $12,000 |
| 2024 | The Independent Charitable Gift Fund | GENERAL SUPPORT | $10,190 |
| 2024 | Mightycause Charitable Foundation | UNRESTRICTED | $6,960 |
| 2024 | The Us Charitable Gift Trust | FOR RECIPIENT'S EXEMPT PURPOSE | $6,500 |
| 2024 | Vanguard Charitable Endowment Program | FOR RECIPIENT'S EXEMPT PURPOSE | $5,200 |
| 2024 | Seattle Foundation | EQUIPMENT FOR PLANTS FACING CLIMATE THREATS. | $3,000 |
| 2024 | Glein Family Foundation | CONSERVATION AND EDUCATION | $2,000 |
| 2024 | Wyman Youth Trust | CIVIC | $1,750 |
| 2024 | Seattle Foundation | TO PROVIDE GENERAL SUPPORT | $1,500 |
| 2024 | The Rouse Family Foundation Inc | UNRESTRICTED | $1,500 |
| 2024 | Seattle Foundation | TO PROVIDE GENERAL SUPPORT | $1,500 |
| 2024 | Raven Trust Fund | GENERAL SUPPORT FOR ALL PUBLIC CHARITIES | $1,000 |
| 2024 | Owen M Johnson Family Foundation | DONATION | $1,000 |
| 2024 | Norman Raab Foundation | EDUCATION | $1,000 |
| 2024 | Seattle Foundation | TO PROVIDE GENERAL SUPPORT | $1,000 |
| 2024 | Seattle Foundation | TO PROVIDE GENERAL SUPPORT | $1,000 |
| 2024 | Mceachern Foundation-tr | GENERAL OPERATING | $750 |
| 2024 | Seattle Foundation | TO PROVIDE GENERAL SUPPORT | $500 |
Showing 30 most recent of 149 recorded grants.
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Frequently Asked Questions
Who funds Arboretum Foundation?
Arboretum Foundation is funded by 46 grantmakers, led by The Aldarra Foundation ($5.5M), Islands Fund ($340K), Seattle Foundation ($300K). In total, IRS Form 990 filings record $7.2M in grants to Arboretum Foundation between 2020–2025.
Who is Arboretum Foundation's largest funder?
The Aldarra Foundation is the largest recorded funder of Arboretum Foundation, with $5.5M across 6 grants (2020–2024).
How much grant funding has Arboretum Foundation received?
IRS 990 filings record $7.2M in grants to Arboretum Foundation across 149 grants from 46 funders between 2020–2025. Filings are published on a delay, so recent grants may not appear yet.
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Grant data is drawn from IRS Form 990 filings via Grantable's GrantGraph™. Filings are published on a delay; recent grants may not appear yet.