Fiscal year ending 2024. Filed on October 23, 2025.
270 Peachtree Street NW 1900
Atlanta, Georgia 30303
International Society of Arboriculture (EIN: 37-1004119) has filed an IRS Form 990 since fiscal year 2017. In its fiscal year 2024 IRS Form 990 filing, International Society of Arboriculture, a 501(c)(5) labor, agricultural, or horticultural organization, reported compensation for 6 out of 42 total employees. Among the employees shown here, the average compensation is $182,194. The highest compensated employee at International Society of Arboriculture is Caitlyn Pollihan with fiscal year 2024 compensation of $388,638.
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Through research, technology, and education, the International Society of Arboriculture (ISA) will promote the professional practice of arboriculture and foster a greater worldwide awareness of the benefits of trees.
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