THORNE ECOLOGICAL INSTITUTE

THORNE ECOLOGICAL INSTITUTE

BOULDER, CO, US
501(c)(3)
EIN
84-6029250

THORNE ECOLOGICAL INSTITUTE

BOULDER, CO, US
501(c)(3)
EIN
84-6029250

Overview

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Est.

1954

Fiscal Year Start

Sep 1

Organization Type

Grantseeker

Mission Statement

THORNE'S MISSION IS TO BUILD EARTH STEWARDSHIP BY CONNECTING YOUTH TO NATURE THROUGH JOYFUL, HANDS-ON, PLACE-BASED ENVIRONMENTAL EDUCATION EXPERIENCES.
Revenues

$3.3M

Expenses

$3.6M

Net Income:
-$304.2K
Assets

$8.2M

Liabilities

$1.6M

Net Assets:
+$6.6M
Operating Budget

$3.4M

Operating Budget by Year

Due Diligence

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IRS EO Business Master File Status
Listed as tax-exempt
IRS Pub 78 Status
Eligible for tax-deductible gifts
IRS Revocation Status
Not in Automatic Revocation of Exemption List
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Total No. of Grants

23

Median grant size
$9K
Largest grant received
$209.7K
K
Keith Desrosiers
Board Member
J
John Ahrens
Board Member
L
Luis Alvarez
Board Member

Frequently Asked Questions

What is THORNE ECOLOGICAL INSTITUTE’s budget?
In 2024, THORNE ECOLOGICAL INSTITUTE reported an annual operating budget of around $3.4 million. More detailed financial information is available to registered users.
What causes does THORNE ECOLOGICAL INSTITUTE support?
THORNE ECOLOGICAL INSTITUTE supports work in Environmental education.
Where does THORNE ECOLOGICAL INSTITUTE operate?
THORNE ECOLOGICAL INSTITUTE is headquartered in BOULDER, CO.
Who funded THORNE ECOLOGICAL INSTITUTE recently?
In 2025, THORNE ECOLOGICAL INSTITUTE received grants from TISBEST PHILANTHROPY, AMERICAN ONLINE GIVING FOUNDATION INC, and L & N ANDREAS FOUNDATION. More information on this organization’s funders is available to registered users.
What is the largest grant THORNE ECOLOGICAL INSTITUTE received in 2024?
The largest grant to THORNE ECOLOGICAL INSTITUTE in 2024 exceeds $210 thousand.
What is THORNE ECOLOGICAL INSTITUTE’s reliance on government grants?
THORNE ECOLOGICAL INSTITUTE relied on government grants for more than 25% of their total revenue in 2024.
Overview
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