Mission
The Tree-Ring Society's purpose is to promote and support the science of Dendrochronology
Small Public Charity
Tree-Ring Society
Based in Loveland, CO, Tree-Ring Society operates as a Small Public Charity. The organization reported $78K in revenue, $58K in expenses, $88K in total assets for fiscal year 2025.
EIN: 811389847
Loveland, CO
Professional Societies & Associations
NTEE: U03
Latest filing: 2025
Total Revenue$78K
Total Expenses$58K
Total Assets$88K
Grant Records0
Filing Years2024–2025
Where $100 goes at Tree-Ring Society
How Tree-Ring Society divides every $100 it spends, from its own Form 990-EZ filings, averaged across 2 years.
$89
Programs
the work itself
$11
Everything else
operations and overhead
Form 990-EZ reports program spending but doesn't separate management from fundraising, so those are shown together.
Inside the $89 for programs
$66
The Tree-Ring Society hold an annual week-long field school in varying different locations in which students and scientists participate in a variety of lectures, labs and field opportunities…
$14
The Tree-Ring Society publishes a bi-annual journal, Tree-Ring Research in which valuable articles serve as education and learning opportunities to support the field of tree-ring dating (dendrochronology)
$9
The Tree-Ring Society offers financial support to conferences such as African Field School, to promote the learning and education in the field of Dendrochronology
Source: Form 990-EZ filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Officers & Directors
Treasurer
Adam Csank
Secretary
Elaine Sutherland
VictoPresident
Grant Harley
President
Jodi Axelson
Student Representative
Marthie Kemp
Diversity, Equity and Inclusion Officer
Nicole Zampieri
Officer compensation and complete director data available with membership.
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $78K | $58K | $88K |
| 2024 | $77K | $61K | $63K |
Between 2024 and 2025, reported annual revenue held roughly steady at around $78K, with total assets most recently reported at $88K.
Interactive year-over-year charts and full filing details available with membership.