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Governance Register
US nonprofit · EIN 263153404 · New York, NYiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 263153404) - 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 July 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 2008.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Jack Music Inc's network

7 people3 organisationsi7 people and 3 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (7). Violet dotted lines (3) 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

7 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 9 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Ara GuzelimianDirector2022
4 yrs
Christopher OttoDirector2018
8 yrs
Conrad TaoDirector2023
3 yrs
Jed Austin WullimanDirector2023
3 yrs
Jeremiah A CampbellDirector2019
7 yrs
John P RichardsDirector2018
8 yrs
Kate SheeranDirector2018
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
Daniel BaldiniTreasurer2022
Elmore DemottPresident2022
John BierbusseTreasurer2023
Julia BumkeExecutive Dir.2022
Katherine PfingstenDirectorsince 2024
Kevin LiTreasurersince 2024
Marcos BalterCompany secretary2022
Michael TanzerPresidentsince 2023

Pay and hours

year to 31 July 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
John P RichardsDirector40$72k
Jed Austin WullimanDirector40$72k
Christopher OttoDirector40$72k
Jeremiah A CampbellDirector40$72k
Conrad TaoDirector0.5$0
Kate SheeranDirector0.5$0
Ara GuzelimianDirector0.5$0
Kevin LiTreasurer0.5$0
Katherine PfingstenDirector0$0
Michael TanzerPresident0.5$0

About

Legal name
Jack Music Inc
EIN
263153404
Address
350 Fort Washington Ave Apt 3c, New York, NY, 10033-6817
State
New York
Mission
The JACK Quartet operates as a 501(c)(3) nonprofit organization called JACK Music Inc. Under the artistic direction of the quartet, the organization's mission is to present, promote, and educate the public community about new music as well as expand and enhance the depth of the string quartet repertoire by collaborating with composers on the interpretation of existing works and the... (as filed on the Form 990)
Activity (NTEE)
A6B 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
4 (IRS master file code)
Formed
2008
Principal officer
Christopher Otto (as named on the Form 990)
IRS ruling date
1 August 2009
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsChristopher Otto
≥8years on the filingsJohn P Richards
≥8years on the filingsKate Sheeran
≥7years on the filingsJeremiah A Campbell

Latest return

year to 31 July 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 July 2025. US dollars, as filed.
Total assets
$428k
Total liabilities
$50k
Net assets or fund balances
$378k
Contributions and grants received
$478k
Program service revenue
$252k
Employees
5
Volunteers
5

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2023$651k$706kDeficit $55k

As filed on the IRS Form 990. US dollars.

State registration

1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.
Jack Music Inc. likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: New York Department of State, active corporations (data.ny.gov n9v6-gdp6). Licence: New York open data terms of use. Data last fetched 18 October 2026.
State
New York
Entity type
Domestic Not-For-Profit Corporation
Status
Active
Formed
22 July 2008
Registered agent
Not stated