AMERICAN ORNITHOLOGICAL SOCIETY, of CHICAGO, IL, is a Public Charity tracked in Imperigo's IRS 990 database. The 2024 filing shows $2.3M in revenue, $1.7M in expenses, $34.7M in total assets. 5 publicly reported grants to this organization, totaling roughly $58K, appear in IRS filings.
SEE SCHEDULE OTHE AMERICAN ORNITHOLOGICAL SOCIETY (AOS) IS AN INTERNATIONAL MEMBERSHIP ORGANIZATION THAT CONNECTS ORNITHOLOGISTS, SCIENCE, AND BIRD CONSERVATION BY SUPPORTING SCIENCE THAT ADVANCES THE UNDERSTANDING AND CONSERVATION OF BIRDS, PROMOTING BROAD ACCESS TO ORNITHOLOGICAL SCIENCE, SUPPORTING ORNITHOLOGISTS THROUGHOUT THEIR CAREER PATHS, AND FOSTERING A WELCOMING, DIVERSE, SUPPORTIVE, AND DYNAMIC ORNITHOLOGICAL COMMUNITY.
How American Ornithological Society divides every $100 it spends, from its own Form 990 filings, averaged across 7 years.
No fundraising costs are reported. That often means fundraising runs through a separate affiliated organization that files its own return.
Plus 1 more program. Cost per person served and the full program breakdown are on the full profile.
Source: Form 990 filings with the IRS, latest fiscal year 2024. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Showing up to 5 of 5 total records — full history available with membership.
Officer compensation and complete director data available with membership.
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2024 | $2.3M | $1.7M | $34.7M |
| 2023 | $1.3M | $1.6M | $29.1M |
| 2022 | $1.3M | $1.6M | $24.6M |
| 2020 | $903K | $1.1M | $27.6M |
| 2019 | $1.3M | $1.5M | $23.9M |
Between 2019 and 2024, reported annual revenue grew from $1.3M to $2.3M (+77%), with total assets most recently reported at $34.7M.
Interactive year-over-year charts and full filing details available with membership.
