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STEM ALLIANCE OF LARCHMONT-MAMARONECK INC

EIN 46-0973552 LARCHMONT, NY

Revenue 2024
$2,883,802
Expenses 2024
$2,931,772

Program services were 81.5% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
O50
Classification
1000
Street
PO BOX 528

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • ELIZABETH ESTROFF

    CHAIR

    Total calculated
    $0
    Hours/week
    1

  • JOY CHAILLOU

    VICE CHAIR

    Total calculated
    $0
    Hours/week
    1

  • MARK MANLEY

    TREASURER

    Total calculated
    $0
    Hours/week
    1

  • STEVEN STIEGLITZ

    SECRETARY

    Total calculated
    $0
    Hours/week
    1

  • PIETRO CATIZONE

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • NILESH JAIN

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • LAUREN BUONOME

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • HARMEET GOINDI

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • DIANA BARRERA

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • IRENE IANUZZI

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • MARGARET KAUFER

    PRESIDENT/ CVO

    Total calculated
    $84,044
    From this org
    $84,044
    From related orgs
    $0
    Other
    $0
    Hours/week
    40

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $2,883,802
    Expenses
    $2,931,772
    Contributions
    $2,197,031
    Grants paid
    $12,650
  • 2023
    Revenue
    $2,949,392
    Expenses
    $3,238,295
    Contributions
    $2,248,319
    Grants paid
    $13,000
  • 2022
    Revenue
    $2,600,515
    Expenses
    $2,400,097
    Contributions
    $1,459,801
    Grants paid
    $9,250

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 10 September 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.