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THE KNEE SOCIETY INC

EIN 13-3190169 SCHAUMBURG, IL

Revenue 2025
$2,776,072
Expenses 2025
$2,573,911

Program services were 87.5% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
Classification
1000
Street
1515 E WOODFIELD RD STE 345

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 · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • STEVEN B HAAS MD

    PRESIDENT

    Total calculated
    $0
    Hours/week
    1

  • CRAIG J DELLA VALLE MD

    1ST VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    1

  • RICHARD IORIO MD

    2ND VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    1

  • MICHAEL A MONT MD

    3RD VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    1

  • HENRY D CLARKE MD

    IMMEDIATE PAST PRESIDENT

    Total calculated
    $0
    Hours/week
    1

  • SCOTT M SPORER MD

    SECRETARY

    Total calculated
    $0
    Hours/week
    1

  • CHARLES L NELSON MD

    TREASURER

    Total calculated
    $0
    Hours/week
    1

  • DAVID J MAYMAN MD

    COMMITTEE CHAIR

    Total calculated
    $0
    Hours/week
    1

  • JAMES I HUDDLESTON III MD

    COMMITTEE CHAIR

    Total calculated
    $0
    Hours/week
    1

  • FRED D CUSHNER MD

    COMMITTEE CHAIR

    Total calculated
    $0
    Hours/week
    1

  • JAMES A BROWNE MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1

  • JESS H LONNER MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1

  • SHUICHI MATSUDA MD

    EX-OFFICIO MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1

  • OLGA FOLEY

    EXECUTIVE DIRECTOR

    Total calculated
    $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, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2025
    Revenue
    $2,776,072
    Expenses
    $2,573,911
    Contributions
    $192,058
    Grants paid
    $65,824
  • 2024
    Revenue
    $2,478,874
    Expenses
    $2,118,181
    Contributions
    $355,023
    Grants paid
    $14,016
  • 2023
    Revenue
    $1,844,196
    Expenses
    $1,855,628
    Contributions
    $337,897
    Grants paid
    $23,000
  • 2022
    Revenue
    $2,113,472
    Expenses
    $1,978,838
    Contributions
    $871,018
    Grants paid
    $41,333

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

Where these grants went next →

Grants received

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.

What this page reflects

The IRS Business Master File ingested 5 October 2026, which is when the registration facts above were last refreshed for every organization. Returns through tax year 2025, the newest we have parsed for this organization.