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Governance Register
US nonprofit · EIN 133363655 · New York, NYiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 133363655) - 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 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. 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

Landmark West Inc's network

16 people2 organisationsi16 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (16). 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

16 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 16 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Carlo LamagnaCo-Chair2018
8 yrs
Helen ThurstonDirector2019
7 yrs
Holly LynchCompany secretary2020
6 yrs
Jack PontesDirector2018
8 yrs
Julia Vitullo-MartinDirector2021
5 yrs
Kara KellyCo-Chair2023
3 yrs
Kevin PoulinDirector2019
7 yrs
Lorna NowveDirector2023
3 yrs
Mosette BroderickDirector2018
8 yrs
Page Ayres CowleyDirector2018
8 yrs
Peter SamtonDirector2020
6 yrs
Polly WeissmanDirector2025
1 yr
Roberta SemerVice Chair2019
7 yrs
Ron SenioTreasurer2018
8 yrs
Susan NialDirector2018
8 yrs
Wendy MoonanDirector2019
7 yrs
Under 5 years5 to 6 years6 years or moreShow all 16 →

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
Sean KhorsandiExecutive Directorsince 2018

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
Sean KhorsandiExec Director40$117k$5k
Page Ayres CowleyDirector1$0
Carlo LamagnaCo-Chair5$0
Susan NialDirector1$0
Ron SenioTreasurer5$0
Polly WeissmanDirector1$0
Holly LynchSecretary5$0
Mosette BroderickDirector1$0
Kara KellyCo-Chair5$0
Lorna NowveDirector1$0
Julia Vitullo-MartinDirector1$0
Wendy MoonanDirector1$0
Jack PontesDirector1$0
Kevin PoulinDirector1$0
Peter SamtonDirector1$0
Roberta SemerVice Chair5$0
Helen ThurstonDirector1$0

About

Legal name
Landmark West Inc
EIN
133363655
Address
45 West 67th Street, New York, NY, 10023-6257
State
New York
Mission
(as filed on the Form 990)
Activity (NTEE)
A82Z 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
1985
IRS ruling date
1 June 1987
Status
Code 01 (unconditional exemption)
Form 990 filings on record
8, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsCarlo Lamagna
≥8years on the filingsJack Pontes
≥8years on the filingsMosette Broderick
≥8years on the filingsPage Ayres Cowley

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
$489k
Total liabilities
$0
Net assets or fund balances
$489k
Contributions and grants received
$483k
Program service revenue
$15k
Employees
6
Volunteers
19

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$361k$429kDeficit $69k

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.
Landmark West! 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
1 August 1986
Registered agent
Not stated