Mission
THORNE'S MISSION IS TO BUILD EARTH STEWARDSHIP BY CONNECTING YOUTH TO NATURE THROUGH JOYFUL, HANDS-ON, PLACE-BASED ENVIRONMENTAL EDUCATION EXPERIENCES.
Public Charity
THORNE ECOLOGICAL INSTITUTE
THORNE ECOLOGICAL INSTITUTE is a Public Charity headquartered in BOULDER, CO. Financial data from the 2025 filing: $2.7M revenue, $3.5M expenses, $7.4M total assets. 60 publicly reported grants to this organization, totaling roughly $1.9M, appear in IRS filings.
EIN: 846029250
BOULDER, CO
Environmental Education
NTEE: C60
Latest filing: 2025
Total Revenue$2.7M
Total Expenses$3.5M
Total Assets$7.4M
Grant Records60
Funding Total$1.9M
Filing Years2021–2025
Where $100 goes at Thorne Ecological Institute
How Thorne Ecological Institute divides every $100 it spends, from its own Form 990 filings, averaged across 8 years.
$83
Programs
the work itself
$8
Management
running the organization
$9
Fundraising
raising the next dollar
Inside the $83 for programs
$83
Core programs
Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Sample Grants Received
$100,000
GENERAL SUPPORT
$209,740
GENERAL PURPOSE
$24,732
CONSERVATION ACTIVITIES
$20,780
SEE TISBEST MISSION
$20,000
Showing up to 5 of 60 total records — full history available with membership.
Officers & Directors
SECRETARY
Aidan Smith
BOARD MEMBER
Annika Paradise
EXECUTIVE DI
Brian Sense
BOARD MEMBER
David Kirk
BOARD MEMBER
Jay Schultz
BOARD MEMBER
John Ahrens
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $2.7M | $3.5M | $7.4M |
| 2024 | $3.3M | $3.6M | $8.2M |
| 2023 | $4.9M | $2.7M | $7.3M |
| 2022 | $3.2M | $2.2M | $5.0M |
| 2021 | $2.8M | $2.0M | $4.1M |
Between 2021 and 2025, reported annual revenue declined from $2.8M to $2.7M (-4%), with total assets most recently reported at $7.4M.
Interactive year-over-year charts and full filing details available with membership.