Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 01-0724451

ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC

Tax-exempt · ASPEN, CO 81612

Financials

$302K$635K2022$919K$605K2023$1M$558K2024
Revenue Expenses · by fiscal year end
Financials of ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
October 31, 2025990$1,039,934$557,616$482,318$14,246,337$1,925$14,244,412
October 31, 2024990$919,119$604,629$314,490$13,326,718$13,600$13,313,118
October 31, 2023990$302,354$635,275-$332,921$11,503,291$12,820$11,490,471
Financial details: 990 for the year ended October 31, 2025

Revenue

Contributions, gifts and grants
$150,000
Program service revenue
$0
Investment income
$889,934
Net gain from sales of assets
$670,055
Other revenue
$0

Expenses

Grants and similar amounts paid
$500,000
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Program services (functional)
$500,000
Management and general (functional)
$57,616

Balance sheet and other

Total assets, start of year
$13,326,718
Total assets, end of year
$14,246,337
Total liabilities, end of year
$1,925
Net assets, end of year
$14,244,412
Publicly traded securities
$13,929,472
Net assets without donor restrictions
$7,087,268
Net assets with donor restrictions
$7,157,144
Gross receipts
$3,087,464
Employees
0
Volunteers
5
Year formed
2002
State of legal domicile
CO

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended October 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
DAVID CORBINPRESIDENT
Trustee or director, Officer
2$0
ALI FLYNN PHILLIPSTREASURER
Trustee or director, Officer
2$0
MAILE WADETRUSTEE
Trustee or director
2$0
MIRTE MALLORYSECRETARY
Trustee or director, Officer
2$0
MATT JONESTRUSTEE
Trustee or director
2$0
990 for the year ended October 31, 2024: 5 people
NameTitleHours / weekCompensation
LOUISE HOVERSTENPRESIDENT
Trustee or director, Officer
2$0
ALI FLYNN PHILLIPSVICE PRESIDENT & TREASURER
Trustee or director, Officer
2$0
MAILE SPUNGDIRECTOR
Trustee or director
2$0
MIRTE MALLORYSECRETARY
Trustee or director, Officer
2$0
DAVID CORBINDIRECTOR
Trustee or director
2$0
990 for the year ended October 31, 2023: 5 people
NameTitleHours / weekCompensation
LOUISE HOVERSTENPRESIDENT
Trustee or director, Officer
2$0
MARK PEARSONVICE PRESIDENT
Trustee or director, Officer
2$0
ALEXANDRA FLYNN PHILLIPSTREASURER
Trustee or director, Officer
2$0
MIRTE MALLORYDIRECTOR
Trustee or director
2$0
DAVID CORBINDIRECTOR
Trustee or director
2$0

Address and contacts

Address (IRS master file)
PO BOX 10931, ASPEN, CO 81612-9720
In care of
% LANCE LUCKETT
Principal officer (990 for 2024)
ALEXANDRA FLYNN PHILLIPS, PO BOX 10931, ASPEN, CO 81612
Signed the 990
ALEXANDRA FLYNN PHILLIPS, TREASURER
Phone
(970) 925-5756
Return prepared by
REESE HENRY & COMPANY INC

Mission

RAISE FUNDS FOR SUPPORT OF ASPEN CENTER FOR ENVIRONMENTAL STUDIES, A 501(C)(3) ORGANIZATION LOCATED IN ASPEN, COLORADO.

990 for the year ended October 31, 2025

Program accomplishments

  • TO PROVIDE SUPPORT TO ASPEN CENTER FOR ENVIRONMENTAL STUDIES, A 501(C)(3) ORGANIZATION LOCATED IN ASPEN AND BASALT, COLORADO.ACES INSPIRES A LIFE-LONG COMMITMENT TO THE EARTH BY PROVIDING INNOVATIVE AND IMMERSIVE EDUCATIONAL PROGRAMMING FOR ALL AGES. WE HAVE THREE LOCATIONS: HALLAM LAKE, ROCK BOTTOM RANCH, AND CATTO CENTER AT TOKLAT. OUR EDUCATION PROGRAMS FOCUS ON ECOLOGICAL LITERACY, REGENERATIVE AGRICULTURE, FOREST AND ECOSYSTEM HEALTH, LAND RESTORATION, AND ENVIRONMENTAL CIVIC LEADERSHIP AND THEY REACH OVER 140,000 INDIVIDUALS EVERY YEAR. IN PARTNERSHIP WITH 60 PLUS PARTNER ORGANIZATIONS, ACES TEACHES ENVIRONMENTAL SCIENCE DAILY IN SCHOOLS FROM ASPEN TO RIFLE COLORADO, PROVIDES DAY CAMPS FOR CHILDREN IN THE SUMMER AND OVER SELECT HOLIDAYS, GUIDES ADULTS AND YOUTHS OF ALL AGES ON OUTDOOR NATURE CLASSES, GUIDED HIKES AND FIELD PROGRAMS. WE ALSO ENGAGE OUR COMMUNITY BY HOSTING PUBLIC LECTURES AND EVENTS ABOUT CUTTING EDGE ENVIRONMENTAL SCIENCE. THROUGH COLLABORATIONS WITH LAND TRUSTS, PUBLIC AGENCIES AND OTHER NONPROFIT ORGANIZATIONS; ACES CARRIES OUT ITS MISSION "EDUCATING FOR ENVIRONMENTAL RESPONSIBILITY."
    Expenses $500,000 · grants $500,000

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in October, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025October 31, 2026March 15, 2027Not due yet
2024October 31, 2025March 16, 2026990 on file
2023October 31, 2024March 17, 2025990 on file

IRS record

EIN
01-0724451
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Supporting organization (509(a)(3))
Donations deductible (Pub 78)
Supporting organization of unknown type
Exempt since
2002
Accounting year ends
October
Files
Form 990 or 990-EZ
Category (NTEE)
Environment (C113)
Assets (IRS master file)
$14,246,337
Income (IRS master file)
$3,087,464

Filing history

FormYear endedRevenueExpensesAssetsReturn
990October 2025$1,039,934$557,616$14,246,337XML
990October 2024$919,119$604,629$13,326,718XML
990October 2023$302,354$635,275$11,503,291XML
990October 2022$826,193$492,000$11,491,640IRS
990October 2021–––IRS
990October 2020–––IRS
990October 2019–––IRS
990October 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 01-0724451).

Questions about ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC

What is the EIN of ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC?
The employer identification number (EIN) of ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC is 01-0724451.
Is ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2002.
Are donations to ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Supporting organization of unknown type).
Which annual return does ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC due?
The return for tax year 2025 (the year ending October 31, 2026) is due March 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended October 2025.
Who is the principal officer of ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC?
The 990 for the year ended October 31, 2025 names ALEXANDRA FLYNN PHILLIPS.
Who are the officers and directors of ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC?
The 990 for the year ended October 31, 2025 lists 5 people; 0 received compensation from the organization.
How much revenue does ASPEN CENTER FOR ENVIRONMENTAL STUDIES ENDOWMENT FUND INC have?
On its 990 for the year ended October 31, 2025 it reported revenue of $1,039,934, expenses of $557,616 and total assets of $14,246,337 at year end.

Other nonprofits in ASPEN

All nonprofits in ASPEN · Colorado · Environment