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US nonprofit · EIN 851994102 · Mill Valley, CAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 851994102) - 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 2024: assets, liabilities, staff, website, telephone, pay.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.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Sweetwater Music Hall Inc

Donations deductible
Revenue
$2.9m
year to 31 December 2024
Expenses
$3.1m
year to 31 December 2024
Total assets
$1m
$306k liabilities
Net assets
$698k
assets less liabilities
Directors and trustees
6
4.4y av
Staff
5
employees, year to 31 December 2024
Chair observed
≥3 yrs
Michael Klein
Left since last filing
0
no seats appear to have opened
How am I connected?

Sweetwater Music Hall Inc's network

6 people5 organisationsi6 people and 5 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 (5) 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.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 6 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Michael Klein ChairChairman2020
6 yrs
Chris MosconeVP/Treasurer2023
3 yrs
Dennis FiscoPresident2023
3 yrs
Maggie O'DonnellVP/Secretary2023
3 yrs
Paul WinstonBoard Member2020
6 yrs
Rich RobbinsVice President2023
3 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

7 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Aaron SaulFacilities Manager2023
Chris MosconeVP/Treasurersince 2020
Dennis FiscoPresidentsince 2020
Maggie O'DonnellVP/Secretarysince 2020
Maria HoppeExecutive Dir.2023
Michael WilsonTechnical Director2023
Rich RobbinsVice presidentsince 2020

Pay and hours

year to 31 December 2024iFrom 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
Maria HoppeExecutive Director40$134k
Maggie O'donnellVP/Secretary10$0
Dennis FiscoPresident4$0
Richard RobbinsVice President2$0
Chris MosconeVP/Treasurer4$0
Paul WinstonBoard Member1$0
Michael KleinChairman1$0
Roger McNameeBoard Member1$0

About

Legal name
Sweetwater Music Hall Inc
EIN
851994102
Address
21 Corte Madera Ave Ste 3a, Mill Valley, CA, 94941-1889
State
California
Mission
To further the appreciation of various forms of traditional and innovative music through the production of performances and education programs for youth and adults. (as filed on the Form 990)
Activity (NTEE)
A68 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
6 (IRS master file code)
Formed
2020
Principal officer
Maggie O'donnell (as named on the Form 990)
IRS ruling date
1 April 2021
Status
Code 01 (unconditional exemption)
Form 990 filings on record
3, latest 2023
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥6years on the filingsMichael Klein
≥6years on the filingsPaul Winston
≥3years on the filingsChris Moscone
≥3years on the filingsDennis Fisco

Latest return

year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.
Total assets
$1m
Total liabilities
$306k
Net assets or fund balances
$698k
Contributions and grants received
$637k
Program service revenue
$2.6m
Employees
5