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Nonprofit · EIN 88-0143056

GEOLOGICAL SOCIETY OF NEVADA

Tax-exempt · RENO, NV 89512

Financials

$473K$348K2023$430K$374K2024$669K$466K2025
Revenue Expenses · by fiscal year end
Financials of GEOLOGICAL SOCIETY OF NEVADA by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
May 31, 2026990$668,874$466,485$202,389$2,316,692$2,105$2,314,587
May 31, 2025990$429,675$373,879$55,796$2,112,198$0$2,112,198
May 31, 2024990$472,700$348,229$124,471$2,056,402$0$2,056,402
Financial details: 990 for the year ended May 31, 2026

Revenue

Contributions, gifts and grants
$94,830
Membership dues
$63,445
Program service revenue
$235,664
Investment income
$48,472
Net income from sales of inventory
$1,465
Other revenue
$289,908

Expenses

Grants and similar amounts paid
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Accounting fees
$211,687
Program services (functional)
$200,651
Management and general (functional)
$265,834

Balance sheet and other

Total assets, start of year
$2,112,198
Total assets, end of year
$2,316,692
Total liabilities, end of year
$2,105
Net assets, end of year
$2,314,587
Publicly traded securities
$2,036,976
Gross receipts
$674,450
Employees
0
Volunteers
6
Year formed
1983
State of legal domicile
NV

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 May 31, 2026, highest compensation first.

NameTitleHours / weekCompensation
DAVE BODENPRESIDENT
Officer
1$0
CHRISTINE O'NEILLVICE PRESIDENT
Officer
1$0
MANDY BENGTSONSECRETARY
Officer
1$0
BOB KASTELICTREASURER
Officer
1$0
MICHAEL SAYPUBLICATIONS CHAIR
Officer
1$0
DAKOTA PRUDHOMMEDIGITAL MEDIA CHAIR
Officer
1$0
CHRISTIAN THOMASMEMBERSHIP CHAIR
Officer
1$0
BOB THOMASCLASS A DIRECTOR
Officer
1$0
RUTH CARRAHERCLASS A DIRECTOR
Trustee or director
1$0
DAVID CALDWELLCLASS B DIRECTOR & CHAIR
Trustee or director
1$0
GREG FRENCHCLASS B DIRECTOR
Trustee or director
1$0
MARK TRAVISCLASS C DIRECTOR
Trustee or director
1$0
JOSH BONDECLASS C DIRECTOR
Trustee or director
1$0
990 for the year ended May 31, 2025: 13 people
NameTitleHours / weekCompensation
STEVE WEISSPRESIDENT
Officer
1$0
DAVE BODENVICE PRESIDENT
Officer
1$0
MANDY BENGTSONSECRETARY
Officer
1$0
BOB KASTELICTREASURER
Officer
1$0
MICHAEL SAYPUBLICATIONS CHAIR
Officer
1$0
PETER O'BYRNEDIGITAL MEDIA CO-CHAIR
Officer
1$0
DAKOTA PRUDHOMMEDIGITAL MEDIA CO-CHAIR
Officer
1$0
CHRISTIAN THOMASMEMBERSHIP CHAIR
Officer
1$0
BOB THOMASCLASS A DIRECTOR & CHAIRMAN
Trustee or director
1$0
JOHN WATSONCLASS A DIRECTOR
Trustee or director
1$0
DAVID CALDWELLCLASS B DIRECTOR
Trustee or director
1$0
GREG FRENCHCLASS B DIRECTOR
Trustee or director
1$0
MARK TRAVISCLASS C DIRECTOR
Trustee or director
1$0
990 for the year ended May 31, 2024: 6 people
NameTitleHours / weekCompensation
ANTHONY GESUALDOPRESIDENT
Officer
1$0
STEVE WEISSSECRETARY
Officer
1$0
ROBERT KASTELICTREASURER
Officer
1$0
LUKE SCHRANZELKO CHAPTER PRESIDENT
Officer
1$0
KRIS ALVAREZWINNEMUCCA PRESIDENT
Officer
1$0
ROBERT THOMASDIRECTOR
Trustee or director
1$0

Address and contacts

Address (IRS master file)
2175 RAGGIO PKWY, RENO, NV 89512-1095
Principal officer (990 for 2025)
ROBERT KASTELIC, 2175 RAGGIO PKWY STE 107, RENO, NV 89512
Signed the 990
ROBERT KASTELIC, TREASURER
Phone
(775) 323-3500
Return prepared by
EDWIN M PEREYRA CPA

Mission

TO PROMOTE THE ADVANCEMENT OF GEOLOGICAL SCIENCES, ESPECIALLY AS THEY RELATE TO NEVADA, BY ENCOURAGING AND SPONSORING THE DISSEMINATION OF INFORMATION THROUGH MEETINGS, FIELD TRIPS, PUBLICATIONS AND BY SUPPORTING ACADEMIC ENDEAVORS.

990 for the year ended May 31, 2026

Program accomplishments

  • FIELD TRIPS TO AREAS OF REGIONAL GEOLOGICAL SIGNIFICANCE
    Expenses $51,697 · revenue $66,260
  • DINNER MEETINGS, SPEAKERS AND SYMPOSIA: MEETINGS FEATURING PRESENTATION ON REGIONAL GEOLOGY AND/OR MINERAL DEPOSITS OR CURRENT TECHNIQUES OR NEW DEVELOPMENTS WITHIN THE FIELD
    Expenses $148,954 · revenue $116,994
  • GRANTS AND ALLOCATIONS: DISTRIBUTIONS TO BENEFICIARIES NAMED AND APPROVED BY THE BOARD OF DIRECTORS0

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

Tax yearYear endedDueIRS public records
2025May 31, 2026October 15, 2026990 on file
2024May 31, 2025October 15, 2025990 on file
2023May 31, 2024October 15, 2024990 on file

IRS record

EIN
88-0143056
Tax-exempt status
501(c)(6): Business league or chamber of commerce
Donations deductible
No
Exempt since
1988
Accounting year ends
May
Files
Form 990 or 990-EZ
Assets (IRS master file)
$2,316,692
Income (IRS master file)
$674,450

Filing history

FormYear endedRevenueExpensesAssetsReturn
990May 2026$668,874$466,485$2,316,692XML
990May 2025$429,675$373,879$2,112,198XML
990May 2024$472,700$348,229$2,056,402XML
990May 2023$225,382$326,657$1,931,931IRS
990May 2022–––IRS
990May 2021–––IRS
990May 2020–––IRS
990May 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 88-0143056).

Questions about GEOLOGICAL SOCIETY OF NEVADA

What is the EIN of GEOLOGICAL SOCIETY OF NEVADA?
The employer identification number (EIN) of GEOLOGICAL SOCIETY OF NEVADA is 88-0143056.
Is GEOLOGICAL SOCIETY OF NEVADA tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 1988.
Are donations to GEOLOGICAL SOCIETY OF NEVADA tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does GEOLOGICAL SOCIETY OF NEVADA 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 GEOLOGICAL SOCIETY OF NEVADA due?
The return for tax year 2026 (the year ending May 31, 2027) is due October 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did GEOLOGICAL SOCIETY OF NEVADA last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended May 2026.
Who is the principal officer of GEOLOGICAL SOCIETY OF NEVADA?
The 990 for the year ended May 31, 2026 names ROBERT KASTELIC.
Who are the officers and directors of GEOLOGICAL SOCIETY OF NEVADA?
The 990 for the year ended May 31, 2026 lists 13 people; 0 received compensation from the organization.
How much revenue does GEOLOGICAL SOCIETY OF NEVADA have?
On its 990 for the year ended May 31, 2026 it reported revenue of $668,874, expenses of $466,485 and total assets of $2,316,692 at year end.

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