Arboretum Foundation

Analysis

Arboretum Foundation is a registered charity in United States, based in Seattle, WA. It received its IRS tax-exemption ruling in August 1937, 89 years ago. Its declared purposes cover environment, which this site groups under environment and conservation. The IRS classifies it as a publicly supported organisation (gross receipts test) under section 501(c)(3), and contributions to it are listed as tax-deductible.

In the financial year ending June 2023, Arboretum Foundation reported income of $4.8m and spending of $2.9m, leaving 39% of income unspent that year. Across the 5 years on record, from June 2019 to June 2023, income grew from $3.2m to $4.8m (+50%), an average of +11% a year. The sharpest change came in the year to June 2022, when income rose by 102%. Over the whole period it spent 66% of the income it received.

Among 10,430 United States charities whose main cause is environment and conservation and that reported income, Arboretum Foundation sits at the 94th percentile: it is larger than about 94% of them. Against every charity in United States with reported income it ranks in the 92nd percentile, and in the 93rd percentile within WA. Charities of a similar size with the same main cause include Clean Air Council ($4.8m), Community Water Center ($4.8m) and Pacific Whale Foundation ($4.8m).

On its Form 990 for the period ending June 2023, revenue came from contributions and grants 89% and program service revenue 3.8% of the total. Compensation of current officers, directors and key employees was $172k (5.9% of expenses). Other salaries and wages came to $624k. At year end it held assets of $10.4m against liabilities of $257k, net assets of $10.2m. It reported 21 employees.