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Governance Register
US nonprofit · EIN 133020574 · Tarrytown, NYiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 133020574) - 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 time served.Latest return IRS Form 990 series e-file data - 990 for the year to 31 August 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. Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Friends of the Mozartina Musical Arts Conservatory Inc's network

6 people2 organisationsi6 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (6). 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

6 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.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 5 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Bernard LillisTreasurer2023
3 yrs
Carol JendrasDirector2018
8 yrs
Helen RingeisenVice President2018
8 yrs
Karen LaportaDirector2022
4 yrs
Ray EndrenyCompany secretary2023
3 yrs
Whitney SingletonPresident2018
8 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

8 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Alison WoodsDir of Sponsorshipsince 2018
Bjorn OlssonExecutive Directorsince 2018
Erica EverettBox Office Managersince 2018
Gregory JacquinHouse Manager2024
Karina E RingeisenTheater Managersince 2018
Meagan M CorkrumProduction Managersince 2018
Nancy ZalloDir of Membershipsince 2018
Oscar PortilloBox Office Managersince 2022

Pay and hours

year to 31 August 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
Bjorn OlssonExecutive Director40$121k
Sylviane SherwinTechnical Director40$78k
Lauren CiardulloInstructor40$75k
Karina E RingeisenTheater Manager40$74k
Amissa RybakMem. Ambassador40$73k
John CampbellHouse Manager40$69k
Joe LillisPresident1$0
John BoguszDirector1$0
Michael DawleyDirector1$0
Helen RingeisenDirector1$0
Ray EndrenyTreasurer1$0
Peter E FischDirector1$0
Whitney SingletonVice President1$0

About

Legal name
Friends of the Mozartina Musical Arts Conservatory Inc
EIN
133020574
Address
13 Main St, Tarrytown, NY, 10591-3613
State
New York
Mission
The Friends of the Mozartina is the 501(c)(3) nonprofit, cultural and educational organization that owns and operates the 1885 Tarrytown Music Hall, a building listed on the National Register for Historic Places. Our mission is three-fold: to present diverse and relevant programming in music, theater, dance and film for the enrichment of the tri-state community; to promote arts education... (as filed on the Form 990)
Activity (NTEE)
A6E0 Arts, culture and humanities
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Arts, Culture & Humanities
Size band
7 (IRS master file code)
Formed
1979
Principal officer
Bjorn Olsson (as named on the Form 990)
IRS ruling date
1 August 1980
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsCarol Jendras
≥8years on the filingsHelen Ringeisen
≥8years on the filingsWhitney Singleton
≥4years on the filingsKaren Laporta

Latest return

year to 31 August 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 August 2025. US dollars, as filed.
Total assets
$4.6m
Total liabilities
$2.9m
Net assets or fund balances
$1.7m
Contributions and grants received
$549k
Program service revenue
$3.9m
Grants and similar paid out
$8k
Employees
133
Volunteers
150

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2023$4.9m$5mDeficit $107k

As filed on the IRS Form 990. US dollars.