Nonprofit · EIN 52-0808480
SIOR FOUNDATION
Tax-exempt · WASHINGTON, DC 20005
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| August 31, 2025 | 990 | $792,200 | $817,178 | -$24,978 | $8,508,852 | $181,719 | $8,327,133 |
| August 31, 2024 | 990 | $797,704 | $722,043 | $75,661 | $8,093,809 | $188,309 | $7,905,500 |
| August 31, 2023 | 990 | $663,262 | $567,578 | $95,684 | $7,222,078 | $116,717 | $7,105,361 |
Financial details: 990 for the year ended August 31, 2025
Revenue
- Contributions, gifts and grants
- $481,259
- Program service revenue
- $0
- Investment income
- $310,941
- Net gain from sales of assets
- $159,602
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $426,937
- Compensation of officers, directors and key employees
- $140,062
- Salaries, compensation and benefits (total)
- $140,062
- Professional fundraising fees
- $0
- Accounting fees
- $51,206
- Travel
- $4,490
- Program services (functional)
- $430,719
- Management and general (functional)
- $328,548
- Fundraising (functional)
- $57,911
Balance sheet and other
- Total assets, start of year
- $8,093,809
- Total assets, end of year
- $8,508,852
- Total liabilities, end of year
- $181,719
- Net assets, end of year
- $8,327,133
- Publicly traded securities
- $8,112,255
- Net assets without donor restrictions
- $7,677,388
- Net assets with donor restrictions
- $649,745
- Gross receipts
- $2,962,606
- Employees
- 0
- Volunteers
- 45
- Year formed
- 1962
- State of legal domicile
- IL
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended August 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| CORRINE NOWAK | DIRECTOR Officer | 37.5 | $103,124 | $24,739 |
| RICHARD SLEASMAN | IMM PAST PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| THEODORE KONIGSBERG | PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| KRAIG HEETER | PRESIDENT-ELECT Trustee or director, Officer | 1 | $0 | $0 |
| STAN KLEWENO | TREASURER Trustee or director, Officer | 1 | $0 | $0 |
| WILLIAM BURGESS | VICE PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| JOSEPH BARNA | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| KEVIN CROWLEY | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| CHRIS CURTIS | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| ALLEN GUMP | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| DAVID HAGAN | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| PETER HANSON | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| THOMAS MCCORMICK III | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| ALBERT MCNEEL | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| RANDALL WALKER | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
31 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| AARON BARNARD | EMERITUS Trustee or director | 0.5 | $0 |
| BILL GINDER | EMERITUS Trustee or director | 0.5 | $0 |
| MICHAEL OHMES | EMERITUS Trustee or director | 0.5 | $0 |
| LYNN REICH | EMERITUS Trustee or director | 0.5 | $0 |
| JOHN ADAMS | TRUSTEE Trustee or director | 0.5 | $0 |
| ADRIAN ARRIAGA | TRUSTEE Trustee or director | 0.5 | $0 |
| KIM BAKER | TRUSTEE Trustee or director | 0.5 | $0 |
| JOHN BARKER JR | TRUSTEE Trustee or director | 0.5 | $0 |
| JIM BIJOU | TRUSTEE Trustee or director | 0.5 | $0 |
| MICHAEL CAPOBIANO | TRUSTEE Trustee or director | 0.5 | $0 |
| MARK DUCLOS | TRUSTEE Trustee or director | 0.5 | $0 |
| MICHAEL FALK | TRUSTEE Trustee or director | 0.5 | $0 |
| ERIC FLESKE | TRUSTEE Trustee or director | 0.5 | $0 |
| CHRIS GARCIA | TRUSTEE Trustee or director | 0.5 | $0 |
| BLAKE GARRETT | TRUSTEE Trustee or director | 0.5 | $0 |
| MARK GOODE | TRUSTEE Trustee or director | 0.5 | $0 |
| TRIMBLE GREEN | TRUSTEE Trustee or director | 0.5 | $0 |
| ALFREDO GUTIERREZ | TRUSTEE Trustee or director | 0.5 | $0 |
| WILLIAM HANSON | TRUSTEE Trustee or director | 0.5 | $0 |
| MICHELLE HUDSON | TRUSTEE Trustee or director | 0.5 | $0 |
| MELANIE JACKSON | TRUSTEE Trustee or director | 0.5 | $0 |
| TOM KENNEDY | TRUSTEE Trustee or director | 0.5 | $0 |
| MATTHEW LEGUEN DE LACROIX | TRUSTEE Trustee or director | 0.5 | $0 |
| BRIAN LIGHTLE | TRUSTEE (UNTIL 12/24) Trustee or director | 0.5 | $0 |
| MICHAEL MCFALL | TRUSTEE Trustee or director | 0.5 | $0 |
| J ANDREW MILLS | TRUSTEE Trustee or director | 0.5 | $0 |
| MATTHEW OLSON | TRUSTEE Trustee or director | 0.5 | $0 |
| DANIEL PALMERI | TRUSTEE Trustee or director | 0.5 | $0 |
| PETER RICHARDSON | TRUSTEE Trustee or director | 0.5 | $0 |
| JEFF WILKE | TRUSTEE Trustee or director | 0.5 | $0 |
| JOSHUA WYSS | TRUSTEE Trustee or director | 0.5 | $0 |
990 for the year ended August 31, 2024: 42 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| CORRINE NOWAK | DIRECTOR Officer | 37.5 | $95,465 | $11,505 |
| ALBERT M MCNEEL | IMMEDIATE PAST PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| RICHARD SLEASMAN | PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| BARBARA JOHNSON | PRESIDENT-ELECT, CHAIR Trustee or director, Officer | 1 | $0 | $0 |
| STAN KLEWENO | TREASURER Trustee or director, Officer | 1 | $0 | $0 |
| THEODORE KONIGSBERG | VICE PRESIDENT, CHAIR GRANT & S'SHIP Trustee or director, Officer | 1 | $0 | $0 |
| PETER O HANSON | CHAIR - ADVISORY COMMITTEE Trustee or director | 1 | $0 | $0 |
| AARON BARNARD | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| BILL GINDER | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| CHRISTOPHER CURTIS | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| DAVID HAGAN | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| ALLEN GUMP | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| J PETER WHATMORE | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| JOSEPH V BARNA | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| KEVIN CROWLEY | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| LYNN REICH | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| RANDALL WALKER | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| ROBERT STANIFORTH | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| THOMAS MCCORMICK | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 |
| MIKE OHMES | PAST PRESIDENT Trustee or director | 1.5 | $0 | $0 |
| ADRIAN ARRIAGA | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| CHRISTOPHER GARCIA | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| JACK O'DONOGHUE | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| JOHN BARKER JR | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| KRAIG HEETER | CHAIR FUNDRAISING Trustee or director | 0.5 | $0 | $0 |
| MARK GOODE | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| MATTHEW LEGUEN DE LACROIX | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| MATTHEW OLSEN | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| MICHAEL CAPOBIANCO | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| MICHAEL FALK | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| NANCY MORSE | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| PETER RICHARDSON | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| ROBERT DIKMAN | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| TERRY SMITH | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| WILLIAM BURGESS | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| WILLIAM HANSON | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| J ANDREW MILLS | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| MARK J DUCLOS | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| TRIMBLE GREEN | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| JOHN M ADAMS III | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| DANIEL PALMERI | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
| JEFF WILKE | TRUSTEE Trustee or director | 0.5 | $0 | $0 |
990 for the year ended August 31, 2023: 41 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| CORRINE NOWAK | DIRECTOR Officer | 37.5 | $0 | $100,305 | $29,762 |
| ALBERT M MCNEEL | IMMEDIATE PAST PRESIDENT Trustee or director, Officer | 1 | $0 | $0 | $0 |
| RICHARD SLEASMAN | PRESIDENT Trustee or director, Officer | 1 | $0 | $0 | $0 |
| BARBARA JOHNSON | PRESIDENT-ELECT, CHAIR Trustee or director, Officer | 1 | $0 | $0 | $0 |
| STAN KLEWENO | TREASURER Trustee or director, Officer | 1 | $0 | $0 | $0 |
| THEODORE KONIGSBERG | VICE PRESIDENT, CHAIR GRANT & SCHOLORSHIP Trustee or director, Officer | 1 | $0 | $0 | $0 |
| PETER O HANSON | CHAIR - ADVISORY COMMITTEE Trustee or director | 1 | $0 | $0 | $0 |
| AARON BARNARD | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| BILL GINDER | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| CHRISTOPHER CURTIS | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| DAVID HAGAN | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| ALLEN GUMP | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| J PETER WHATMORE | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| JOSEPH V BARNA | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| KEVIN CROWLEY | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| LYNN REICH | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| RANDALL WALKER | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| ROBERT STANIFORTH | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| THOMAS MCCORMICK | PAST PRESIDENT Trustee or director | 0.5 | $0 | $0 | $0 |
| ADRIAN ARRIAGA | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| CHRISTOPHER GARCIA | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| JACK O'DONOGHUE | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| JOHN BARKER JR | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| KRAIG HEETER | CHAIR FUNDRAISING Trustee or director | 0.5 | $0 | $0 | $0 |
| MARK GOODE | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| MATTHEW LEGUEN DE LACROIX | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| MATTHEW OLSEN | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| MICHAEL CAPOBIANCO | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| MICHAEL FALK | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| NANCY MORSE | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| PETER RICHARDSON | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| ROBERT DIKMAN | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| TERRY SMITH | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| WILLIAM BURGESS | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| WILLIAM HANSON | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| J ANDREW MILLS | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| MARK J DUCLOS | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| TRIMBLE GREEN | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| JOHN M ADAMS III | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| DANIEL PALMERI | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
| JEFF WILKE | TRUSTEE Trustee or director | 0.5 | $0 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 1307 NEW YORK AVE NW STE 703, WASHINGTON, DC 20005-4866
- Principal officer (990 for 2024)
- THEODORE KONIGSBERG, 1307 NEW YORK AVENUE NW 703, WASHINGTON, DC 20005
- Signed the 990
- THEODORE KONIGSBERG, PRESIDENT
- Phone
- (202) 449-8208
- Website
- WWW.SIORFOUNDATION.ORG
- Return prepared by
- CLIFTONLARSONALLEN LLP
Mission
PROMOTE AND SUPPORT INITIATIVES THAT EDUCATE, ENHANCE AND EXPAND THE COMMERCIAL REAL ESTATE COMMUNITY.
Program accomplishments
- GRANTS TO SIOR AND NON-PROFIT ENTITIES FOR SUPPORT OF REAL ESTATE EDUCATION AND LEADERSHIP TRAINING. TO SUPPORT COMMERCIAL REAL ESTATE ARTICLES IN A QUARTERLY PUBLICATION THAT REACHED OVER 4,000 PROFESSIONALS PER ISSUE IN CIRCULATION.Expenses $238,600 · grants $237,702
- SIOR CHAPTER MATCHING SCHOLARSHIP PROGRAM: TO ENCOURAGE AND ASSIST THE BEST AND BRIGHTEST STUDENTS STUDYING COMMERCIAL REAL ESTATE. SUPPORTED 18 SIOR CHAPTERS IN THE U.S. AND CANADA IN SUPPORTING 60+ STUDENTS AT 31 EDUCATIONAL INSTITUTIONS.Expenses $89,705 · grants $89,705
- SIOR CHAPTER MATCHING EDUCATIONAL SPEAKERS AND COMMUNITY PROGRAMS: TO ASSIST SIOR CHAPTERS IN EDUCATING COMMERCIAL REAL ESTATE PROFESSIONALS AND INDUSTRY STAKEHOLDERS, AND TO ENHANCE PUBLIC EDUCATION, UNDERSTANDING, AND AWARENESS OF THE INDUSTRY. SUPPORTED 2 SIOR CHAPTERS AND 6 REGIONS AROUND THE U.S., CANADA, & EUROPE TO PROVIDE 8 COMMERCIAL REAL ESTATE EDUCATIONAL PROGRAMS WITH LEADING INDUSTRY EXPERT SPEAKERS THAT IMPACTED OVER 2,000 COMMERCIAL REAL ESTATE PROFESSIONALS AND STUDENTS.Expenses $50,000 · grants $50,000
- STUDENT REAL ESTATE EXPERIENCE PROGRAM: TO PROVIDE A PROGRAM THAT WILL ENABLE UNDERGRADUATE AND GRADUATE STUDENTS TO ATTEND INDUSTRY WIDE CONFERENCES AS WELL AS REGIONAL AND CHAPTER EVENTS IN ORDER TO PROMOTE THE COMMERCIAL REAL ESTATE INDUSTRY AS A VIABLE AND EXCITING CAREER OPTION TO POTENTIAL PROFESSIONALS.Expenses $30,419 · grants $27,535
- MILDRED C. HANSON, SIOR MEMORIAL SCHOLARSHIP PROGRAM: TO ENCOURAGE AND ASSIST FEMALE STUDENTS IN OBTAINING AN EDUCATION THAT WILL LEAD THEM INTO PRODUCTIVE CAREERS IN THE REAL ESTATE INDUSTRY.Expenses $21,995 · grants $21,995
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in August, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | August 31, 2026 | January 15, 2027 | Not due yet |
| 2024 | August 31, 2025 | January 15, 2026 | 990 on file |
| 2023 | August 31, 2024 | January 15, 2025 | 990 on file |
IRS record
- EIN
- 52-0808480
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1965
- Accounting year ends
- August
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Community improvement and capacity building (S125)
- Assets (IRS master file)
- $8,508,852
- Income (IRS master file)
- $2,962,606
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | August 2025 | $792,200 | $817,178 | $8,508,852 | XML |
| 990 | August 2024 | $797,704 | $722,043 | $8,093,809 | XML |
| 990 | August 2023 | $663,262 | $567,578 | $7,222,078 | XML |
| 990 | August 2022 | $1,402,912 | $586,566 | $6,677,357 | IRS |
| 990 | August 2021 | – | – | – | IRS |
| 990 | August 2020 | – | – | – | IRS |
| 990 | August 2019 | – | – | – | IRS |
| 990 | August 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 52-0808480).
Questions about SIOR FOUNDATION
- What is the EIN of SIOR FOUNDATION?
- The employer identification number (EIN) of SIOR FOUNDATION is 52-0808480.
- Is SIOR FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1965.
- Are donations to SIOR FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SIOR FOUNDATION file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of SIOR FOUNDATION due?
- The return for tax year 2025 (the year ending August 31, 2026) is due January 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did SIOR FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended August 2025.
- Who is the principal officer of SIOR FOUNDATION?
- The 990 for the year ended August 31, 2025 names THEODORE KONIGSBERG.
- Who are the officers and directors of SIOR FOUNDATION?
- The 990 for the year ended August 31, 2025 lists 46 people; 1 received compensation from the organization, the highest $103,124 (CORRINE NOWAK, DIRECTOR).
- How much revenue does SIOR FOUNDATION have?
- On its 990 for the year ended August 31, 2025 it reported revenue of $792,200, expenses of $817,178 and total assets of $8,508,852 at year end.
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