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US nonprofit · EIN 846036754 · Boulder, COiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 846036754) - 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 - 990EZ for the year to 31 July 2024: 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.State registers Colorado Secretary of State (17 October 2026).Licence US Federal Government public domain.How we handle data

Chamber Music Society of Boulder

Donations deductible
Revenue
$121k
year to 31 July 2024
Expenses
$122k
year to 31 July 2024
Total assets
$13k
$13k liabilities
Net assets
$548
assets less liabilities
Directors and trustees
4
3.9 years on average
Left since last filing
0
no seats appear to have opened
Officers and senior staff
1
named in Part VII
Activity
A69
Arts, culture and humanities
How am I connected?

Chamber Music Society of Boulder's network

4 people1 organisationi4 people and 1 organisation on this map.The large node is the subject of this page. Solid lines are what the register itself records (4). Violet dotted lines (1) 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

4 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.
NameRole as filedSinceOn the board
ARI Rubin (also filed as Ari Rubin)Company secretary2021
5 yrs
Adam ZukiewiczTreasurer2024
2 yrs
Camila TobonPresident2024
2 yrs
Farhad NavidBoard Member2021
5 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

1 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Bahman SalessMusic Directorsince 2022

Pay and hours

year to 31 July 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
Camila TobonPresident10$0
Adam ZukiewiczTreasurer15$0
Farhad NavidBoard Member5$0
Ari RubinSecretary10$0
Bahman SalessMusic Director15$0

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

Colorado roster

8 listediOfficers, directors and trustees from the latest filing with the Colorado Secretary of State (document 20253037514). Titles are as filed; some entries are registered agents or custodians of records rather than board members. Source: data.colorado.gov, public domain.
NameTitle as filed
Andrew CooperstockMember
Tobon-Pendleton CamilaPresident
Ari RubinSecretary
Bahman SalessExecutive Director
Zukiewicz AdamMember
Farhad NavidMember
Bahman Shahid-Saless
Camila Tobon-PendletonPresident

About

Legal name
Chamber Music Society of Boulder
EIN
846036754
Address
1905 Kohler Dr, Boulder, CO, 80305-5240
State
Colorado
Activity (NTEE)
A69 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
2 (IRS master file code)
IRS ruling date
1 October 2005
Status
Code 01 (unconditional exemption)
Form 990 filings on record
4, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥5years on the filingsARI Rubin
≥5years on the filingsFarhad Navid
≥2years on the filingsAdam Zukiewicz
≥2years on the filingsCamila Tobon

Latest return

year to 31 July 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 July 2024. US dollars, as filed.
Total assets
$13k
Total liabilities
$13k
Net assets or fund balances
$548

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2023$121k$122kDeficit $1k

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.
Chamber Music Society of Boulder 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: Colorado Secretary of State (CDOS), business entities (data.colorado.gov 4ykn-tg5h). Licence: public domain. Data last fetched 18 October 2026.
State
Colorado
Entity type
nonprofit corporation
Status
Good Standing
Formed
17 December 1984
Registered agent
Bahman Shahid-Saless (city and state not held)

This register does not publish officers or directors.