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Nonprofit · EIN 81-1658523

AMERICAN NUCLEAR SOCIETY INC

Tax-exempt · WESTMONT, IL 60559

Financials

$13.5M$13.2M2023$13.8M$14.6M2024$15.1M$15.3M2025
Revenue Expenses · by fiscal year end
Financials of AMERICAN NUCLEAR SOCIETY INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$15,098,687$15,321,982-$223,295$29,526,599$6,137,296$23,389,303
December 31, 2024990$13,753,274$14,578,032-$824,758$28,113,706$6,010,318$22,103,388
December 31, 2023990$13,455,088$13,213,965$241,123$27,740,826$5,838,343$21,902,483
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$3,649,721
of which government grants
$807,321
Program service revenue
$10,111,912
Investment income
$1,329,195
Net gain from sales of assets
$607,217
Other revenue
$7,859

Expenses

Grants and similar amounts paid
$495,282
Compensation of officers, directors and key employees
$1,004,673
Other salaries and wages
$3,288,654
Salaries, compensation and benefits (total)
$5,567,804
Professional fundraising fees
$0
Legal fees
$24,214
Accounting fees
$73,975
Occupancy
$175,078
Travel
$588,533
Depreciation
$347,762
Program services (functional)
$13,521,997
Management and general (functional)
$1,338,718
Fundraising (functional)
$461,267

Balance sheet and other

Total assets, start of year
$28,113,706
Total assets, end of year
$29,526,599
Total liabilities, end of year
$6,137,296
Net assets, end of year
$23,389,303
Land, buildings and equipment
$764,658
Publicly traded securities
$25,081,635
Net assets without donor restrictions
$16,107,721
Net assets with donor restrictions
$7,281,582
Gross unrelated business income
$1,455,127
Gross receipts
$21,542,979
Employees
45
Volunteers
500
Year formed
2016
State of legal domicile
IL

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
CRAIG H PIERCYEXECUTIVE DIRECTOR/CEO
Officer
40$543,050$84,801
STACI B LEVYCHIEF FINANCIAL OFFICER
Officer
40$167,961$77,943
DARYL RIZZODIRECTOR OF DEVELOPMENT
Highest-paid employee
40$158,010$61,485
JEFFERY MOSSESDIRECTOR OF SALES
Highest-paid employee
40$138,288$50,181
JOHN FABIANDIRECTOR OF PUBLICATIONS
Highest-paid employee
40$126,795$49,710
DANIEL GOLDBERGDIRECTOR OF PROGRAMS
Highest-paid employee
40$137,023$28,743
ANDREW SMITHDIRECTOR OF COMMUNICATIONS
Highest-paid employee
40$132,110$21,296
PAULA A CAPPELLETTICOO/DIR, MEETINGS (THRU 7/2025)
Officer
40$103,363$27,556
HM HASHEMIANPRESIDENT
Trustee or director, Officer
10$0$0
MARK TODD PETERSVP/PRESIDENT-ELECT
Trustee or director, Officer
2$0$0
JULIE EZOLDTREASURER (AS OF 06/2025)
Trustee or director, Officer
10$0$0
LISA MARSHALLIMMED. PAST PRES.
Trustee or director, Officer
10$0$0
KELSEY AMUNDSONBOARD MEMBER
Trustee or director
2$0$0
HAN GYU JOOBOARD MEMBER
Trustee or director
2$0$0
TEMITOPE TAIWOBOARD MEMBER
Trustee or director
2$0$0
21 more people on this return
NameTitleHours / weekCompensation
LEIGH WINFREYBOARD MEMBER
Trustee or director
2$0
GALE E HAUCKBOARD MEMBER
Trustee or director
2$0
J WESLEY HINESBOARD MEMBER
Trustee or director
2$0
MONICA C REGALBUTOBOARD MEMBER
Trustee or director
2$0
MATTHEW D WARGONBOARD MEMBER
Trustee or director
2$0
BRADLEY J ADAMSBOARD MEMBER
Trustee or director
2$0
TODD ALLENBOARD MEMBER (AS OF 06/2025)
Trustee or director
2$0
SAMA BILBAO Y LEONBOARD MEMBER (AS OF 06/2025)
Trustee or director
2$0
JOHN KOTEKBOARD MEMBER (AS OF 06/2025)
Trustee or director
2$0
KATHRYN MCCARTHYBOARD MEMBER (AS OF 06/2025)
Trustee or director
2$0
CATHERINE PRATBOARD MEMBER (AS OF 06/2025)
Trustee or director
2$0
GRACE VANDERHEIBOARD MEMBER (AS OF 06/2025)
Trustee or director
2$0
JULIA MARSHALLBOARD MEMBER (AS OF 06/2025)
Trustee or director
2$0
HARSH S DESAITREASURER (THRU 06/2025)
Trustee or director, Officer
10$0
KENNETH S PETERSONIMMED. PAST PRES. (THRU 06/2025)
Trustee or director, Officer
10$0
JAMIE BAALIS COBLEBOARD MEMBER (THRU 06/2025)
Trustee or director
2$0
SHAHEEN AZIM DEWJIBOARD MEMBER (THRU 06/2025)
Trustee or director
2$0
CARLOS JOSE GHOBOARD MEMBER (THRU 06/2025)
Trustee or director
2$0
CHRISTINA LEGGETTBOARD MEMBER (THRU 06/2025)
Trustee or director
2$0
DANIEL P STOUTBOARD MEMBER (THRU 06/2025)
Trustee or director
2$0
KATY WORRELLBOARD MEMBER (THRU 06/2025)
Trustee or director
2$0
990 for the year ended December 31, 2024: 33 people
NameTitleHours / weekCompensationOther / benefits
CRAIG H PIERCYEXECUTIVE DIRECTOR/CEO
Officer
40$568,376$66,225
STACI B LEVYCHIEF FINANCIAL OFFICER
Officer
40$163,527$62,750
PAULA A CAPPELLETTICOO/DIR, MEETINGS
Officer
40$170,935$41,566
DARYL RIZZODIRECTOR OF DEVELOPMENT
Highest-paid employee
40$153,840$50,709
JEFFERY MOSSESDIRECTOR OF SALES
Highest-paid employee
40$133,972$41,855
JOHN FABIANDIRECTOR OF PUBLICATONS
Highest-paid employee
40$118,342$42,114
DANIEL GOLDBERGDIRECTOR OF PROGRAMS
Highest-paid employee
40$135,027$22,488
ANDREW SMITHDIRECTOR OF COMMUNICATIONS
Highest-paid employee
40$132,877$18,378
LISA MARSHALLPRESIDENT
Trustee or director, Officer
10$0$0
HM HASHEMIANVP/PRESIDENT-ELECT (AS OF 06/2024)
Trustee or director, Officer
10$0$0
HARSH S DESAITREASURER
Trustee or director, Officer
10$0$0
KENNETH S PETERSONIMMED. PAST PRES. (AS OF 6/2024)
Trustee or director, Officer
10$0$0
KELSEY AMUNDSONBOARD MEMBER
Trustee or director
2$0$0
JAMIE BAALIS COBLEBOARD MEMBER
Trustee or director
2$0$0
SHAHEEN AZIM DEWJIBOARD MEMBER
Trustee or director
2$0$0
CARLOS JOSE GHOBOARD MEMBER
Trustee or director
2$0$0
HAN GYU JOOBOARD MEMBER
Trustee or director
2$0$0
CHRISTINA LEGGETTBOARD MEMBER
Trustee or director
2$0$0
MARK TODD PETERSBOARD MEMBER
Trustee or director
2$0$0
DANIEL P STOUTBOARD MEMBER
Trustee or director
2$0$0
TEMITOPE TAIWOBOARD MEMBER
Trustee or director
2$0$0
LEIGH WINFREYBOARD MEMBER
Trustee or director
2$0$0
KATY WORRELLBOARD MEMBER
Trustee or director
2$0$0
GALE E HAUCKBOARD MEMBER (AS OF 06/2024)
Trustee or director
2$0$0
J WESLEY HINESBOARD MEMBER (AS OF 06/2024)
Trustee or director
2$0$0
MONICA C REGALBUTOBOARD MEMBER (AS OF 06/2024)
Trustee or director
2$0$0
MATTHEW D WARGONBOARD MEMBER (AS OF 06/2024)
Trustee or director
2$0$0
BRADLEY J ADAMSBOARD MEMBER
Trustee or director
2$0$0
STEVEN A ARNDTIMMED. PAST PRESIDENT (TO 6/2024)
Trustee or director, Officer
10$0$0
JULIE G EZOLDBOARD MEMBER (TO 6/2024)
Trustee or director
2$0$0
JESS C GEHINBOARD MEMBER (TO 6/2024)
Trustee or director
2$0$0
CATHERINE M PRATBOARD MEMBER (TO 6/2024)
Trustee or director
2$0$0
JESSIKA V ROJASBOARD MEMBER (TO 6/2024)
Trustee or director
2$0$0
990 for the year ended December 31, 2023: 35 people
NameTitleHours / weekCompensationOther / benefits
CRAIG H PIERCYEXECUTIVE DIRECTOR / CEO
Officer
40$509,180$61,162
STACI B LEVYCHIEF FINANCIAL OFFICER
Officer
40$159,066$59,203
PAULA A CAPPELLETTIDIRECTOR OF MEETINGS / COO
Officer
40$166,377$40,083
DARYL J RIZZODIRECTOR OF DEVELOPMENT
Highest-paid employee
40$151,341$46,981
JEFFERY R MOSSESDIRECTOR OF SALES
Highest-paid employee
40$135,640$38,514
JOHN R FABIANDIRECTOR OF PUBLICATIONS
Highest-paid employee
40$116,739$40,494
DANIEL E GOLDBERGDIRECTOR OF PROGRAMS
Highest-paid employee
40$131,637$20,470
ANDREW M SMITHDIRECTOR OF COMMUNICATIONS
Highest-paid employee
40$128,964$17,390
KENNETH S PETERSENPRESIDENT
Trustee or director, Officer
10$0$0
LISA MARSHALLVICE PRESIDENT/PRESIDENT-ELECT
Trustee or director, Officer
10$0$0
HARSH S DESAITREASURER
Trustee or director, Officer
10$0$0
STEVEN A ARNDTIMMEDIATE PAST PRESIDENT
Trustee or director, Officer
10$0$0
STEVEN P NESBITPAST PRESIDENT
Trustee or director, Officer
10$0$0
KELSEY AMUNDSONBOARD MEMBER
Trustee or director
2$0$0
LORI A BRAASEBOARD MEMBER
Trustee or director
2$0$0
AMANDA M BACHMANNBOARD MEMBER
Trustee or director
2$0$0
JAMIE BAALIS COBLEBOARD MEMBER
Trustee or director
2$0$0
SHAHEEN AZIM DEWJIBOARD MEMBER
Trustee or director
2$0$0
ANNA S ERICKSONBOARD MEMBER
Trustee or director
2$0$0
JULIE G EZOLDBOARD MEMBER
Trustee or director
2$0$0
JESS C GEHINBOARD MEMBER
Trustee or director
2$0$0
CARLOS JOSE GHOBOARD MEMBER
Trustee or director
2$0$0
HAN GYU JOOBOARD MEMBER
Trustee or director
2$0$0
RICHARD H LAGDONBOARD MEMBER
Trustee or director
2$0$0
CHRISTINA LEGGETTBOARD MEMBER
Trustee or director
2$0$0
JOHN M MAHONEYBOARD MEMBER
Trustee or director
2$0$0
MARK PETERSBOARD MEMBER
Trustee or director
2$0$0
CATHERINE M PRATBOARD MEMBER
Trustee or director
2$0$0
JESSIKA V ROJASBOARD MEMBER
Trustee or director
2$0$0
DANIEL P STOUTBOARD MEMBER
Trustee or director
2$0$0
TEMITOPE TAIWOBOARD MEMBER
Trustee or director
2$0$0
LUC G VAN DEN DURPELBOARD MEMBER
Trustee or director
2$0$0
WILLIAM ARTHUR WHARTONBOARD MEMBER
Trustee or director
2$0$0
LEIGH WINFREYBOARD MEMBER
Trustee or director
2$0$0
KATY WORRELLBOARD MEMBER
Trustee or director
2$0$0

Address and contacts

Address (IRS master file)
1111 PASQUINELLI DR STE 350, WESTMONT, IL 60559-1131
In care of
% ROBERT C FINE
Mailing address (990-N for 2017)
555 NORTH KENSINGTON AVENUE, LAGRANGE PARK IL 60526
Principal officer (990 for 2025)
CRAIG H PIERCY, 1111 PASQUINELLI DR STE 350, WESTMONT, IL 60559
Principal officer (990-N for 2017)
ROBERT C FINE, 555 NORTH KENSINGTON AVENUE, LAGRANGE PARK IL 60526
Signed the 990
JULIE EZOLD, TREASURER
Phone
(708) 352-6611
Return prepared by
CBIZ ADVISORS LLC

Mission

ANS PROVIDES ITS MEMBERS WITH OPPORTUNITIES FOR PROFESSIONAL DEVELOPMENT, SERVES THE NUCLEAR COMMUNITY BY CREATING FORUMS FOR SHARING INFORMATION AND ADVANCEMENTS IN TECHNOLOGY, AND ENGAGES THE PUBLIC AND POLICY MAKERS THROUGH COMMUNICATION OUTREACH.

990 for the year ended December 31, 2025

Program accomplishments

  • MEETINGS AND NATIONAL CONVENTIONS: EXPENSES INCURRED FOR TWO NATIONAL MEETINGS AND 8 TOPICAL MEETINGS WITH SCIENTIFIC AND EDUCATION PRESENTATIONS. APPROXIMATELY 6,611 PROFESSIONALS, SCIENTISTS, ENGINEERS, STUDENTS AND GUESTS ATTENDED OUR MEETINGS IN 2025.
    Expenses $6,357,691 · grants $14,705 · revenue $5,458,213
  • MEMBER SERVICES: EXPENSES INCURRED FOR SUPPORT SERVICE PROJECTS, MEMBER SERVICES, MEMBER AND SUBSCRIPTION PROMOTIONS, HONORS AND AWARDS, SCHOLARSHIPS, OFFICER SUPPORT AND SPECIAL PROJECTS TO PROMOTE NUCLEAR SCIENCE.
    Expenses $3,140,473 · grants $425,960 · revenue $748,579
  • PUBLICATIONS: EXPENSES INCURRED FOR 4 RECURRING SCIENTIFIC JOURNALS, 2 MAGAZINES PROVIDED TO MEMBERS AND COMMERCIALLY, BOOKS, NEWSLETTERS, MEETING PROCEEDINGS, SPECIAL REPORTS TO ENHANCE AND PROMOTE NUCLEAR SCIENCE.
    Expenses $2,477,343 · revenue $3,441,104
  • CENTER FOR NUCLEAR SCIENCE AND TECHNOLOGY INFORMATION; LED BY STAFF AND THE SOCIETY'S MEMBER VOLUNTEERS, CENTER PROGRAMS INCREASE UNDERSTANDING OF THE BASIC SCIENCE OF THE ATOMIC NUCLEUS. PROGRAMS FOCUS ON THE PRINCIPLES OF NUCLEAR SCIENCE AND TECHNOLOGY AND HOW ITS APPLICATION IMPROVES THE HUMAN CONDITION. PROGRAMS ENGAGE THE PUBLIC, K12 STUDENTS AND EDUCATORS, THE MEDIA, AND POLICYMAKERS AND THEIR STAFF.
    Expenses $1,108,165 · grants $35,887
  • STANDARDS & OTHER PROGRAMS
    Expenses $438,325 · grants $18,730 · revenue $464,016

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
81-1658523
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2016
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$29,526,599
Income (IRS master file)
$21,542,979

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$15,098,687$15,321,982$29,526,599XML
990-TDecember 2025–––IRS
990December 2024$13,753,274$14,578,032$28,113,706XML
990-TDecember 2024–––IRS
990December 2023$13,455,088$13,213,965$27,740,826XML
990-TDecember 2023–––IRS
990December 2022$12,169,735$11,329,554$24,437,574IRS
990-TDecember 2022–––IRS
990December 2021–––IRS
990-TDecember 2021–––IRS
990December 2020–––IRS
990-TDecember 2020–––IRS
990December 2019–––IRS
990December 2018–––IRS
990-N for 2017
Officer: ROBERT C FINE
December 31, 2017≤ $50,000 receipts––e-Postcard

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 81-1658523).

Questions about AMERICAN NUCLEAR SOCIETY INC

What is the EIN of AMERICAN NUCLEAR SOCIETY INC?
The employer identification number (EIN) of AMERICAN NUCLEAR SOCIETY INC is 81-1658523.
Is AMERICAN NUCLEAR SOCIETY INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2016.
Are donations to AMERICAN NUCLEAR SOCIETY INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does AMERICAN NUCLEAR SOCIETY 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 AMERICAN NUCLEAR SOCIETY 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 AMERICAN NUCLEAR SOCIETY 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 AMERICAN NUCLEAR SOCIETY INC?
The 990 for the year ended December 31, 2025 names CRAIG H PIERCY.
Who are the officers and directors of AMERICAN NUCLEAR SOCIETY INC?
The 990 for the year ended December 31, 2025 lists 36 people; 8 received compensation from the organization, the highest $543,050 (CRAIG H PIERCY, EXECUTIVE DIRECTOR/CEO).
How much revenue does AMERICAN NUCLEAR SOCIETY INC have?
On its 990 for the year ended December 31, 2025 it reported revenue of $15,098,687, expenses of $15,321,982 and total assets of $29,526,599 at year end.

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