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Nonprofit · EIN 13-2593244

RIVERSIDE RESEARCH INSTITUTE

Tax-exempt · FAIRFAX, VA 22033

Financials

$162.7M$149.2M2023$189.3M$168.6M2024$286.6M$182.6M2025
Revenue Expenses · by fiscal year end
Financials of RIVERSIDE RESEARCH INSTITUTE by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$286,600,214$182,555,212$104,045,002$322,595,037$48,369,021$274,226,016
December 31, 2024990$189,258,394$168,591,528$20,666,866$171,546,881$48,204,431$123,342,450
December 31, 2023990$162,656,925$149,206,822$13,450,103$142,413,433$46,752,749$95,660,684
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$0
Program service revenue
$191,127,310
Investment income
$95,462,854
Net gain from sales of assets
$91,120,401
Other revenue
$10,050

Expenses

Grants and similar amounts paid
$15,000
Compensation of officers, directors and key employees
$4,283,282
Other salaries and wages
$112,295,129
Salaries, compensation and benefits (total)
$140,556,014
Professional fundraising fees
$0
Legal fees
$369,672
Accounting fees
$537,777
Occupancy
$4,048,130
Travel
$4,102,837
Depreciation
$6,890,185
Program services (functional)
$174,062,265
Management and general (functional)
$8,492,947

Balance sheet and other

Total assets, start of year
$171,546,881
Total assets, end of year
$322,595,037
Total liabilities, end of year
$48,369,021
Net assets, end of year
$274,226,016
Land, buildings and equipment
$21,144,185
Net assets without donor restrictions
$274,226,016
Gross receipts
$318,076,038
Employees
895
Volunteers
0
Year formed
1967
State of legal domicile
NY

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 / weekCompensationOther / benefits
S R OMICK PHDPRESIDENT AND CEO
Trustee or director, Officer
40$1,115,727$28,608
K POWERSCFO, TREASURER, & CORP SEC
Officer
40$554,171$17,500
M BAREFOOTVP BU DIRECTOR
Key employee
40$482,231$35,605
M D'ANGELOCHRO
Key employee
40$438,619$24,459
T WALTZVP BU DIRECTOR
Key employee
40$430,274$29,045
R DENZVP BU DIRECTOR
Key employee
40$427,781$29,391
C INCARDONAPRINCIPLE STAFF MEMBER
Highest-paid employee
40$322,855$15,967
M SPURRIERDIRECTOR
Highest-paid employee
40$293,333$22,024
G ISSLERDIRECTOR
Highest-paid employee
40$293,675$16,827
S DOCKSTADERCHIEF SCIENTIST
Highest-paid employee
40$276,337$25,913
S BROOKESASSOCIATE DIRECTOR
Highest-paid employee
40$275,920$21,886
K SABLONCTO
Key employee
40$259,145$16,775
J SHIELDSCHAIRMAN
Trustee or director, Officer
8$70,000$0
A ROUSETRUSTEE
Trustee or director
5$54,333$0
J HARRISVICE CHAIRMAN
Trustee or director, Officer
8$54,000$0
10 more people on this return
NameTitleHours / weekCompensation
C DOWNESTRUSTEE
Trustee or director
5$54,000
A GRASSOTRUSTEE
Trustee or director
5$49,333
G BENNETT PHDTRUSTEE
Trustee or director
5$47,666
L BROTHERS PHDTRUSTEE
Trustee or director
5$47,333
K SHEATRUSTEE
Trustee or director
5$47,000
TC YORKTRUSTEE
Trustee or director
5$45,333
N MCCASLAND PHDTRUSTEE
Trustee or director
5$45,000
J GIERINGTRUSTEE
Trustee or director
5$30,000
L PORTER PHDTRUSTEE THROUGH MARCH 2025
Trustee or director
5$15,667
R SEMMELTRUSTEE
Trustee or director
5$15,667
990 for the year ended December 31, 2024: 25 people
NameTitleHours / weekCompensationOther / benefits
S R OMICK PHDPRESIDENT AND CEO
Trustee or director, Officer
40$1,351,859$28,042
J PURSELVP BU DIRECTOR
Key employee
40$693,651$43,259
K POWERSCFO, TREASURER, & CORP SEC
Officer
40$542,737$34,500
M BAREFOOTVP BU DIRECTOR
Key employee
40$470,679$34,900
M D'ANGELOCHRO
Key employee
40$425,893$27,942
T WALTZVP BU DIRECTOR
Key employee
40$405,014$28,050
R DENZVP BU DIRECTOR
Key employee
40$362,345$27,975
WD CASEBEERDIRECTOR
Highest-paid employee
40$374,206$11,705
F FALCO PHDDIRECTOR
Highest-paid employee
40$273,321$35,908
J WUTECHNICAL ADVISOR
Highest-paid employee
40$285,714$21,909
C INCARDONAPRINCIPLE STAFF MEMBER
Highest-paid employee
40$284,870$16,417
G ISSLERDIRECTOR
Highest-paid employee
40$282,376$14,301
J LUKEVP BU DIRECTOR
Key employee
40$221,189$19,171
J SHIELDSCHAIRMAN
Trustee or director, Officer
8$70,000$0
A ROUSETRUSTEE
Trustee or director
5$56,000$0
J HARRISVICE CHAIRMAN
Trustee or director, Officer
8$54,000$0
C DOWNESTRUSTEE
Trustee or director
5$54,000$0
A GRASSOTRUSTEE
Trustee or director
5$51,000$0
G BENNETT PHDTRUSTEE
Trustee or director
5$51,000$0
R BROTHERS PHDTRUSTEE
Trustee or director
5$49,000$0
L PORTER PHDTRUSTEE
Trustee or director
5$47,000$0
S SHEATRUSTEE
Trustee or director
5$47,000$0
TC YORKTRUSTEE
Trustee or director
5$47,000$0
J GIERINGTRUSTEE
Trustee or director
5$45,000$0
W N MCCASLAND PHDTRUSTEE
Trustee or director
5$45,000$0
990 for the year ended December 31, 2023: 25 people
NameTitleHours / weekCompensationOther / benefits
S R OMICK PHDPRESIDENT AND CEO
Trustee or director, Officer
40$1,188,687$26,600
K POWERSCFO, Treasurer, & CORP SEC
Officer
40$519,439$16,587
M BAREFOOTVP BU DIRECTOR
Key employee
40$422,953$28,595
J PURSELVP BU DIRECTOR
Key employee
40$382,500$43,359
V ARTHURDIRECTOR (THRU 11/23)
Highest-paid employee
40$366,239$15,864
J LUKEVP BU DIRECTOR
Key employee
40$346,950$19,445
A BHAVECOO (THRU 07/23)
Key employee
40$348,797$16,709
M D'AngeloCHRO
Key employee
40$308,078$19,815
W D CasebeerDirector
Highest-paid employee
40$311,512$15,560
T WaltzVP BU Director
Key employee
40$296,323$25,414
E PATTERSONTechnical Fellow
Highest-paid employee
40$289,920$23,868
R DENZDIRECTOR
Highest-paid employee
40$286,499$24,795
F FALCO PHDDIRECTOR
Highest-paid employee
40$274,651$34,478
J SHIELDSCHAIRMAN
Trustee or director, Officer
8$70,000$0
A ROUSETRUSTEE
Trustee or director
5$56,000$0
J HARRISVICE CHAIRMAN
Trustee or director, Officer
8$54,000$0
C DOWNESTRUSTEE
Trustee or director
5$54,000$0
A GRASSOTRUSTEE
Trustee or director
5$51,000$0
G BENNETT PHDTRUSTEE
Trustee or director
5$51,000$0
R BROTHERS PHDTRUSTEE
Trustee or director
5$49,000$0
L PORTER PHDTRUSTEE
Trustee or director
5$47,000$0
S SHEATRUSTEE
Trustee or director
5$47,000$0
T C YORKTRUSTEE
Trustee or director
5$47,000$0
J GIERINGTRUSTEE
Trustee or director
5$45,000$0
W N MCCASLAND PHDTRUSTEE
Trustee or director
5$45,000$0

Address and contacts

Address (IRS master file)
12601 FAIR LAKES CIR STE 400, FAIRFAX, VA 22033-4921
In care of
% PAYROLL DEPARTMENT
Principal officer (990 for 2025)
KATHIE POWERS, 12601 FAIR LAKES CIRCLE 400, FAIRFAX, VA 22033
Signed the 990
KATHIE POWERS, CFO, TRES, & CRP SEC
Phone
(703) 908-2122
Return prepared by
BDO USA

Mission

RIVERSIDE RESEARCH INSTITUTE ENGAGES IN AND ADVANCES SCIENTIFIC RESEARCH ON BEHALF OF THE U.S. GOVERNMENT AND IN THE PUBLIC INTEREST.

990 for the year ended December 31, 2025

Program accomplishments

  • THE INSTITUTE ENGAGES IN AND SUPPORTS SCIENTIFIC RESEARCH, ON BEHALF OF THE U.S. GOVERNMENT AND ITS AGENCIES AS WELL AS THE NATIONAL INSTITUTE OF HEALTH, ON VARIOUS CLASSIFIED AND UNCLASSIFIED PROGRAMS IN A VARIETY OF AREAS INCLUDING RADAR AND CYBER TECHNOLOGY.
    Expenses $174,062,265 · grants $15,000 · revenue $191,127,310

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
13-2593244
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
1967
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$322,595,037
Income (IRS master file)
$318,076,038

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$286,600,214$182,555,212$322,595,037XML
990-TDecember 2025–––IRS
990December 2024$189,258,394$168,591,528$171,546,881XML
990-TDecember 2024–––IRS
990December 2023$162,656,925$149,206,822$142,413,433XML
990-TDecember 2023–––IRS
990December 2022$139,330,200$133,736,979$101,699,526IRS
990-TDecember 2022–––IRS
990December 2021–––IRS
990-TDecember 2021–––IRS
990December 2020–––IRS
990-TDecember 2020–––IRS
990November 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 13-2593244).

Questions about RIVERSIDE RESEARCH INSTITUTE

What is the EIN of RIVERSIDE RESEARCH INSTITUTE?
The employer identification number (EIN) of RIVERSIDE RESEARCH INSTITUTE is 13-2593244.
Is RIVERSIDE RESEARCH INSTITUTE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1967.
Are donations to RIVERSIDE RESEARCH INSTITUTE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does RIVERSIDE RESEARCH 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 RIVERSIDE RESEARCH INSTITUTE 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 RIVERSIDE RESEARCH INSTITUTE 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 RIVERSIDE RESEARCH INSTITUTE?
The 990 for the year ended December 31, 2025 names KATHIE POWERS.
Who are the officers and directors of RIVERSIDE RESEARCH INSTITUTE?
The 990 for the year ended December 31, 2025 lists 25 people; 25 received compensation from the organization, the highest $1,115,727 (S R OMICK PHD, PRESIDENT AND CEO).
How much revenue does RIVERSIDE RESEARCH INSTITUTE have?
On its 990 for the year ended December 31, 2025 it reported revenue of $286,600,214, expenses of $182,555,212 and total assets of $322,595,037 at year end.

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