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Nonprofit · EIN 74-2893040

NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC

Tax-exempt · WASHINGTON, DC 20013

Financials

$939K$1M2023$3.4M$1.2M2024$2.3M$2.9M2025
Revenue Expenses · by fiscal year end
Financials of NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$2,345,784$2,861,060-$515,276$1,713,845$36,126$1,677,719
December 31, 2024990 (amended)$3,373,838$1,228,094$2,145,744$2,205,449$12,273$2,193,176
December 31, 2023990$938,799$1,006,183-$67,384$258,891$211,459$47,432
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$1,971,851
of which government grants
$1,055,351
Membership dues
$62,981
Program service revenue
$337,545
Investment income
$36,388
Other revenue
$0

Expenses

Grants and similar amounts paid
$1,011,740
Compensation of officers, directors and key employees
$290,177
Other salaries and wages
$332,131
Salaries, compensation and benefits (total)
$697,393
Professional fundraising fees
$0
Travel
$117,496
Program services (functional)
$2,861,060

Balance sheet and other

Total assets, start of year
$2,205,449
Total assets, end of year
$1,713,845
Total liabilities, end of year
$36,126
Net assets, end of year
$1,677,719
Land, buildings and equipment
$13,439
Gross receipts
$2,345,784
Employees
6
Year formed
1998
State of legal domicile
DC

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, 2025, highest compensation first.

NameTitleHours / weekCompensation
Valerie GrussingExecutive Director
Officer
35$136,617
Melissa MadrigalOperations Director
Officer
35$116,630
Amy MartinezFinance Director
Officer
35$104,614
John SwiagartGIS Director
Officer
35$94,896
Stacy LaravieIndigenization Director
Officer
35$92,659
Ira MattExecutive Director
Trustee or director, Officer
35$27,248
Lakota HobiaChairman
Trustee or director, Officer
0.5$0
Richard BegayBoard Director
Trustee or director
0.5$0
Billie BurtrumTreasurer
Trustee or director, Officer
0.5$0
Michael Kicking JohnsonBoard Director
Trustee or director
0.5$0
Raphael WahwassuBoard Director
Trustee or director
0.5$0
Steven ConchoBoard Director
Trustee or director
0.5$0
Buffy McQuillenVice Chairman
Trustee or director
0.5$0
Allan DamaryBoard Member
Trustee or director
0.5$0
Nicholas KagerBoard Member
Trustee or director
0.5$0
2 more people on this return
NameTitleHours / weekCompensation
Crystal CBearingBoard Member
Trustee or director
0.5$0
Warren GrahamBoard Member
Trustee or director
0.5$0
990 for the year ended December 31, 2024: 12 people
NameTitleHours / weekCompensation
Valerie GrussingExecutive Dir.
Trustee or director
40$142,667
Melissa MadrigalDirector
Trustee or director
40$126,700
Lakota HobiaChairman
Trustee or director, Officer
0.5$0
Richard BegayBoard Director
Trustee or director
0.5$0
Michael Black WolfVice Chair
Trustee or director, Officer
0.5$0
Billie BurtrumTreasurer/Sec
Trustee or director, Officer
0.5$0
Jill WagnerBoard Director
Trustee or director
0.5$0
Michael Kickingbear JohnsonBoard Director
Trustee or director
0.5$0
Sunshine Thomas-BearBoard Director
Trustee or director
0.5$0
Sean ScruggsBoard Director
Trustee or director
0.5$0
Raphael WahwassuckBoard Director
Trustee or director
0.5$0
Steven ConchoBoard Director
Trustee or director
0.5$0
990 for the year ended December 31, 2023: 13 people
NameTitleHours / weekCompensation
Valerie GrussingExecutive Dir.
Trustee or director
40$137,000
Melissa MadrigalDirector
Trustee or director
40$113,500
Shasta GaughenChairperson
Trustee or director, Officer
0.5$0
Jon Eagle SrVice Chair
Trustee or director, Officer
0.5$0
Kurt DongoskeBoard Director
Trustee or director
0.5$0
Lance FosterBoard Director
Trustee or director
0.5$0
Lakota HobiaBoard Director
Trustee or director
0.5$0
Richard BegayBoard Director
Trustee or director
0.5$0
Michael Black WolfBoard Director
Trustee or director
0.5$0
Nick LalukBoard Director
Trustee or director
0.5$0
Danielle SimonBoard Director
Trustee or director
0.5$0
Billie BurtrumBoard Director
Trustee or director
0.5$0
Jill WagnerTreasurer/Sec
Officer
0.5$0

Address and contacts

Address (IRS master file)
PO BOX 75064, WASHINGTON, DC 20013-0064
In care of
% IRA L MATT
Principal officer (990 for 2025)
Ira Matt, PO Box 75064, Washington, DC 20013
Signed the 990
IRA L MATT, Executive Director
Phone
(202) 628-8476
Return prepared by
Parr & Ibarra CPA PC

Mission

NATHPOs mission is to provide guidance to preservation officials, elected representatives, and the public about national historic preservation legislation, policies and regulations.

990 for the year ended December 31, 2025

Program accomplishments

  • NATHPO supports Tribal Historic Preservation Officers (THPOs) in their work to preserve and protect Native American cultural heritage. In 2025, NATHPO administered cooperative agreements, provided technical assistance, conducted training, and managed the Protecting Native Places (PNP) regranting program, distributing $1,000,000 in grants to 25 tribal nations to support heritage preservation projects.
    Expenses $2,861,060 · grants $1,000,000 · revenue $1,055,350

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, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
74-2893040
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
2000
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$1,713,845
Income (IRS master file)
$2,345,784

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$2,345,784$2,861,060$1,713,845XML
990December 2024$3,373,838$1,228,094$2,205,449IRS
990December 2023$938,799$1,006,183$258,891XML
990December 2022$697,956$642,504$127,100IRS
990December 2021–––IRS
990-EZDecember 2020–––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 74-2893040).

Questions about NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC

What is the EIN of NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC?
The employer identification number (EIN) of NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC is 74-2893040.
Is NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2000.
Are donations to NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS 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 NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC?
The 990 for the year ended December 31, 2025 names Ira Matt.
Who are the officers and directors of NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC?
The 990 for the year ended December 31, 2025 lists 17 people; 6 received compensation from the organization, the highest $136,617 (Valerie Grussing, Executive Director).
How much revenue does NATIONAL ASSOCIATION OF TRIBAL HISTORIC PRESERVATION OFFICERS INC have?
On its 990 for the year ended December 31, 2025 it reported revenue of $2,345,784, expenses of $2,861,060 and total assets of $1,713,845 at year end.

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