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Nonprofit · EIN 82-1871782

NATURAL HISTORY INSTITUTE

Tax-exempt · PRESCOTT, AZ 86301

Financials

$370K$426K2023$391K$381K2024
Revenue Expenses · by fiscal year end
Financials of NATURAL HISTORY INSTITUTE by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2024990$391,197$381,157$10,040$171,627$360$171,267
December 31, 2023990$370,062$425,822-$55,760$119,227$0$119,227
Financial details: 990 for the year ended December 31, 2024

Revenue

Contributions, gifts and grants
$326,488
of which government grants
$22,485
Membership dues
$11,575
Program service revenue
$65,503
Investment income
$0
Net income from fundraising events
$590
Net income from sales of inventory
-$2,019
Other revenue
-$794

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$93,569
Other salaries and wages
$104,454
Salaries, compensation and benefits (total)
$239,644
Professional fundraising fees
$0
Accounting fees
$15,975
Occupancy
$43,456
Program services (functional)
$236,984
Management and general (functional)
$69,497
Fundraising (functional)
$74,676

Balance sheet and other

Total assets, start of year
$119,227
Total assets, end of year
$171,627
Total liabilities, end of year
$360
Net assets, end of year
$171,267
Net assets without donor restrictions
$157,171
Net assets with donor restrictions
$14,096
Gross receipts
$397,251
Employees
4
Volunteers
9
Year formed
2017
State of legal domicile
AZ

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 December 31, 2024, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
Robert EllisExecutive Dir.
Officer
40$93,569$6,307
Ty FitzmorrisTreasurer
Trustee or director, Officer
1$0$0
Earl DuqueTrustee
Trustee or director
1$0$0
Reuben EllisSecretary
Trustee or director, Officer
2$0$0
John FarmerVice President
Trustee or director, Officer
1$0$0
Rebecca RuffnerPresident
Trustee or director, Officer
2$0$0
Bob GessnerTrustee
Trustee or director
1$0$0
Rebecca HornimanTrustee
Trustee or director
1$0$0
990 for the year ended December 31, 2023: 6 people
NameTitleHours / weekCompensationOther / benefits
Robert EllisExecutive Dir.
Officer
40$89,838$6,888
Ty FitzmorrisTreasurer
Trustee or director, Officer
0.23$0$0
Earl DuqueTrustee
Trustee or director
1$0$0
Reuben EllisVice President
Trustee or director, Officer
3$0$0
John FarmerTrustee
Trustee or director
1$0$0
Rebecca RuffnerPresident
Trustee or director, Officer
2$0$0

Address and contacts

Address (IRS master file)
126 N MARINA ST, PRESCOTT, AZ 86301-3208
In care of
% THOMAS L FLEISCHNER
Principal officer (990 for 2024)
Jennie Tutone
Signed the 990
Rebecca Ruffner, President
Phone
(928) 863-3232
Return prepared by
SLATER & RUTHERFORD PLLC

Mission

Natural History Institute is organized to provide leadership and resources for a revitalized practice of natural history that integrates art, science, and humanities to promote the health and well-being of humans and the rest of the natural world.

990 for the year ended December 31, 2024

Program accomplishments

  • Community Nature Education Inspiring Stewardship Through LearningThis program advances NHI's mission by connecting people with nature through hands-on experiences and expert-led lectures. In 2024, the Speaker Series and community workshops served 533 individuals through 38 programs, with a total in-person attendance of 1,888, including adults, senior citizens, and 2 lifelong learners. Activities included in-person talks, field studies, and interactive workshops designed to foster environmental literacy and inspire stewardship of the Mogollon Highlands. Each presentation was live-streamed and recorded, reaching a national audience with 91,300 views on YouTube.
    Expenses $229,545 · revenue $60,435
  • Art Gallery and Exhibitions Blending Art and NatureThe NHI Art Gallery presented four free contemporary exhibitions in 2024, each featuring one public artist talk and one hands-on workshop. 4th Friday Art Walks provided additional opportunities for the public to meet artists and engage with artwork. Open five days a week, the gallery attracts hundreds of visitors and integrates artistic and scientific perspectives to educate the public about regional ecology and culture, providing free access to high-quality exhibitions and creative experiences.
    Expenses $4,679 · revenue $5,068
  • Mogollon Highlands Science Initiative Research, Collections, and ConservationThis initiative advances scientific understanding and conservation of the Mogollon Highlands ecoregion. In 2024, NHI conducted research, educational programming, and community engagement around the Wild and Scenic Upper Verde River, Walnut Creek Center for Education and Research, and other critical habitats. Activities included field studies, ecological monitoring, and scientific collections. The initiativepromotes evidence-based stewardship and long-term protection of regional ecosystems.
    Expenses $2,760
  • Other Program Services Nature Nios CollaborationNHI participated in 12 Nature Nios events, a community collaboration providing free nature education to children and families.

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 December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026Not on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
82-1871782
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2018
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$171,627
Income (IRS master file)
$397,251

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2024$391,197$381,157$171,627IRS
990December 2023$370,062$425,822$119,227XML
990December 2022$164,365$375,299$139,879IRS
990December 2021–––IRS
990December 2020–––IRS
990December 2019–––IRS
990December 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 82-1871782).

Questions about NATURAL HISTORY INSTITUTE

What is the EIN of NATURAL HISTORY INSTITUTE?
The employer identification number (EIN) of NATURAL HISTORY INSTITUTE is 82-1871782.
Is NATURAL HISTORY INSTITUTE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2018.
Are donations to NATURAL HISTORY INSTITUTE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does NATURAL HISTORY INSTITUTE 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 NATURAL HISTORY INSTITUTE due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did NATURAL HISTORY INSTITUTE last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2024.
Who is the principal officer of NATURAL HISTORY INSTITUTE?
The 990 for the year ended December 31, 2024 names Jennie Tutone.
Who are the officers and directors of NATURAL HISTORY INSTITUTE?
The 990 for the year ended December 31, 2024 lists 8 people; 1 received compensation from the organization, the highest $93,569 (Robert Ellis, Executive Dir.).
How much revenue does NATURAL HISTORY INSTITUTE have?
On its 990 for the year ended December 31, 2024 it reported revenue of $391,197, expenses of $381,157 and total assets of $171,627 at year end.

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