Arboretum Foundation
EIN: 910613583
Does Not Accept Unsolicited Applications
In-State Only
Arboretum Foundation is a Washington private foundation. Awards $1,004,070 annually. Through 2 grants, median $502K. Invite-only. Assets: $14M.
Total Assets
$14.4M
Key Financial Metrics (2025)
Total Giving
$1.0M
Number of Grants
2
Median Grant
$502K
Grant Range
$39K - $966K
Historical Giving Trends
| Year | Assets | Total Giving | # Grants | Median Grant |
|---|---|---|---|---|
| 2025 | $14.4M | $1.0M | 2 | $502K |
| 2024 | $11.7M | $1.6M | 1 | $1.6M |
| 2023 | $10.4M | $1.5M | 2 | $740K |
| 2022 | $8.0M | $1.4M | 2 | $679K |
Quick Facts
Application Policy
Accepts Applications
No - Invite Only
Geographic Restriction
In-State Only

