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Governance Register
US nonprofit · EIN 455349929 · Mundelein, ILiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 455349929) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2025: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Principal officer IRS Form 990-N (e-Postcard) - principal officer named for tax year 2012.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Pope LEO Xiii Institute Inc's network

13 people2 organisationsi13 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (13). Violet dotted lines (2) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

13 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 13 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Bishop Jeffrey GrobDirector2023
3 yrs
Deacon Tom GaidaCompany secretary2023
3 yrs
Denise Marie Scalzo (also filed as Denise Scalzo)Director2023
3 yrs
Msgr John EsseffDirector2023
3 yrs
Rev Cliff ErmatingerDirector2023
3 yrs
Rev James MattalianoPresident2023
3 yrs
Rev John B CloteVice President2023
3 yrs
Rev John CellaDirector2023
3 yrs
Rev Matthew NiggemeyerDirector2024
2 yrs
Rev Thomas HoarDirector2023
3 yrs
Rev TIM RivelliDirector2023
3 yrs
TIM EganDirector2023
3 yrs
TIM WallenderTreasurer2023
3 yrs
Under 5 years5 to 6 years6 years or moreShow all 13 →

Officers and senior leadership

9 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Angela M FisherAssistantsince 2018
Biegel TomScretarysince 2020
Denise Marie ScalzoTreasurersince 2018
FR John R CloteVice Presidentsince 2018
Fr James MattalianoPresidentsince 2018
Kowalski DavidScretary2019
Lisa RotiOffice Adminsince 2021
Mary K LeeAdministrator2018
Roti LisaAdministratorsince 2019

Pay and hours

year to 31 December 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Rev James MattalianoPresident0$0
Rev John B CloteVice President0$0
Deacon Tom GaidaSecretary0$0
Tim WallenderTreasurer0$0
Rev Matthew NiggemeyerDirector0$0
Rev John CellaDirector0$0
Cynthia Hunt MDDirector0$0
Tim EganDirector0$0
Rev Cliff ErmatingerDirector0$0
Bishop Jeffrey GrobDirector0$0
Rev Thomas HoarDirector0$0
Rev Tim RivelliDirector0$0
Denise Marie ScalzoDirector0$0
MSGR John EsseffDirector0$0
Rev David KowalskiDirector0$0
Peter SchallmoserDirector0$0
Robert D GrussDirector0$0
Rev Robert-Joel CruzDirector0$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
Pope Leo Xiii Institute Inc
EIN
455349929
Address
1000 E Maple Ave 201p, Mundelein, IL, 60060-1967
State
Illinois
Mission
THIS ORGANIZATION WAS FORMED TO ENGAGE IN CHARITABLE AND EDUCATIONAL ACTIVITIES WITHIN THE MEANING OF SECTION 501(c)(3) OF THE INTERNAL REVENUE CODE. OUR MISSION IS TO BRING THE HEALING LIGHT OF CHRIST TO HELP FREE THOSE AFFLICTED BY THE EVIL ONE. (as filed on the Form 990)
Activity (NTEE)
X22 Religion-related
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Religion-Related
Size band
5 (IRS master file code)
Formed
2010
Principal officer
Tom Gaida (as named on the Form 990)
IRS ruling date
1 October 2012
Status
Code 01 (unconditional exemption)
Form 990 filings on record
3, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥3years on the filingsBishop Jeffrey Grob
≥3years on the filingsDeacon Tom Gaida
≥3years on the filingsDenise Marie Scalzo
≥3years on the filingsMsgr John Esseff

Latest return

year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.
Total assets
$859k
Total liabilities
$29k
Net assets or fund balances
$830k
Contributions and grants received
$9k
Program service revenue
$421k
Employees
1

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$412k$372k$40k

As filed on the IRS Form 990. US dollars.