EIN 84-6029250

Thorne Ecological Institute

IRS 501(c) type
Num. employees
Year formed
Most recent tax filings
Thorne's Mission is to build Earth stewardship by connecting youth to nature through joyful, hands-on, place-based environmental education experiences.
Also known as...
Thorne Nature Experience
Total revenues
Total expenses
Total assets
Num. employees

Program areas at Thorne Ecological Institute

Summer camp - Thorne summer camp in boulder, longmont, louisville, and littleton reaches more than 2,800 youth each summer through field-based "camp experiences" for kids ages 3-15. Learning takes place through hands- on, science-based, experiential activities in grasslands, evergreen forests, and wetland habitats as a classroom. Field trip program - the program engages more than 2,600 bvsd and svvsd second graders and nearly 500 students from other schools annually in a day-long field trip to the 45-acre sombrero marsh environmental education center in boulder or sandstone ranch in longmont. Through fun, hands-on, place-based environmental education experiences, students interact with, and learn to care about, the ecosystems around them. School programs - Thorne's three-visit in-school program reaches nearly 6,000 elementary students each year. The program expands students' knowledge in the areas of science and literacy through a series of lessons that involve interactive explorations, inquiry-based experiments, scientific instruments and specimens, and writing a picture book. At select schools, Thorne offers an additional twelve weeks of after school programming to 280 students who are interested in further expanding their knowledge of science and connection to nature. Nature for all - Thorne provides in excess of 400,000 in camp scholarships and subsidized school programs to more than 7,000 youth from low-income and latino families each year (greater than 50% of Thorne's total participants). Thorne believes that more frequent and in-depth interaction with participants increases the likelihood that they will truly connect with nature and become life-long stewards of the earth. For this reason, Thorne has developed its nature immersion program (nip), which seamlessly delivers Thorne's summer camp, field trip, in-school, and after school programs at elementary schools with high percentages of underserved youth.

Grants made by Thorne Ecological Institute

Cal-Wood Education Center$67,163
The Keystone Science School$61,245
Cottonwood Institute$57,881
...and 7 more grants made

Who funds Thorne Ecological Institute

Grants from foundations and other nonprofits
Cynthia & Geo Mitchell Foundation (CGMF)Connecting Youth To Nature$159,341
Jacques M. Littlefield FoundationOperating Support$112,000
Bobolink FoundationUnrestricted Charitable Grant$40,000
...and 19 more grants received totalling $485,054

Personnel at Thorne Ecological Institute

Keith DesrosiersExecutive Director$107,303
Alyson DuffeyDirector of Development and Marketing
Dr. Oakleigh Thorne IIAdministrative Director
Erin SaundersEducation Programs Director
Angela MyersProgram Director Community Partnerships
...and 13 more key personnel

Financials for Thorne Ecological Institute

RevenuesFYE 12/2019
Total grants, contributions, etc.$1,776,465
Program services$606,870
Investment income and dividends$32,184
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$0
Net gain from sale of non-inventory assets$0
Net income from fundraising events$-21,314
Net income from gaming activities$0
Net income from sales of inventory$0
Miscellaneous revenues$777
Total revenues$2,394,982

Form 990s for Thorne Ecological Institute

Fiscal year endingDate received by IRSFormPDF link
2019-122020-09-25990View PDF
2018-122019-10-30990View PDF
2017-122018-11-15990View PDF
2016-122017-08-30990View PDF
2015-122016-08-30990View PDF
...and 6 more Form 990s

Organizations like Thorne Ecological Institute

Hitchcock Center for the EnvironmentAmherst, MA$1,615,020
Hartley Nature CenterDuluth, MN$1,471,872
National Ability CenterPark City, UT$8,062,323
Hawaii Nature CenterHonolulu, HI$1,092,667
Thomas Irvine Dodge Nature CenterWest Saint Paul, MN$9,493,258
Irvine Nature CenterOwings Mills, MD$2,315,467
North Lakeland Discovery CenterManitowish, WI$876,861
Gordon Bubolz Nature PreserveAppleton, WI$2,063,429
Environmental Nature CenterNewport Beach, CA$3,162,687
Beaver Creek ReserveFall Creek, WI$889,820
Data update history
August 2, 2022
Received grants
Identified 2 new grant, including a grant for $5,000 from Green Fund
September 22, 2021
Received grants
Identified 10 new grant, including a grant for $159,341 from Cynthia & Geo Mitchell Foundation (CGMF)
August 22, 2021
Posted financials
Added Form 990 for fiscal year 2019
December 4, 2020
Updated personnel
Identified 18 new personnel
September 30, 2020
Posted financials
Added Form 990 for fiscal year 2018
Nonprofit Types
Civic / social organizationsEnvironmental organizationsCharities
Fundraising eventsReceives government fundingEndowed supportCommunity engagement / volunteeringTax deductible donations
General information
PO Box 19107
Boulder, CO 80308
Metro area
Boulder, CO
Boulder County, CO
Website URL
(303) 499-3647
IRS details
Fiscal year end
Taxreturn type
Form 990
Year formed
Eligible to receive tax-deductible contributions (Pub 78)
NTEE code, primary
C60: Environmental Education
NAICS code, primary
813410: Civic and Social Organizations
Parent/child status
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