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Quadrangle Management Company

  • Saint Louis, MO
  • Tax-exempt since June 1992
  • EIN: 43-1558136

Organization summary

Type of Nonprofit

Designated as a Title holding corporations or trusts with multiple parent corporations, which hold titles and pay over income from property to 35 or fewer parents or beneficiaries.

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
−$12.8M (2024)

Expenses
$0 (2024)

Total Assets
$36.7M (2024)

Total Liabilities
$36.7M (2024)

Source: Form 990 tax filings from 2011 to 2024

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending June
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
-$12,770,415
Expenses
$0
Net Income
-$12,770,415
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income -$424,458
Net Fundraising $0
Sales of Assets -$12,345,957
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $36,652,953
Total Liabilities $36,652,953
Net Assets $0
Compensation
Key Employees and Officers Compensation Related Other
Amy B Kweskin (Chair Of The Board) $0 $518,455 $68,538
Rebecca L Brown (Director) $0 $455,828 $71,603
Jd Long Ii (Director) $0 $370,805 $53,045
Mary B Campbell (President) $0 $341,541 $47,546
Angie Leahy (Treasurer) $0 $272,996 $60,922
Amye Kim (Exec Vice President) $0 $292,883 $25,808
Thomas J Blackwell (Secretary) $0 $231,427 $57,814
Stephen C Condrin (Vice President) $0 $219,533 $43,495
Jo Anna Schooler (Director) $0 $156,597 $26,327
Rachel Siegert (Vice President) $0 $153,268 $23,281
+ View more people

Document Links

990
Filed on May 14, 2025

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$698,643
Expenses
$0
Net Income
$698,643
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $698,643
100%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $31,889,991
Total Liabilities $31,889,991
Net Assets $0
Compensation
Key Employees and Officers Compensation Related Other
Amy B Kweskin (Chair Of The Board) $0 $485,110 $63,459
Rebecca L Brown (Director) $0 $425,728 $53,469
Jd Long Ii (Director) $0 $358,511 $49,442
Henry S Webber (Chairman Of The Board) $0 $378,270 $0
Mary Campbell (President) $0 $329,387 $44,363
Angie Leahy (Treasurer) $0 $287,461 $50,330
Amye Kim (Executive Vice President) $0 $298,657 $13,075
Thomas J Blackwell (Secretary) $0 $214,463 $60,447
Stephen C Condrin (Vice President) $0 $212,389 $41,508
Joanna Schooler (Director) $0 $152,475 $25,152
Rachel Siegert (Vice President) $0 $148,198 $22,247
+ View more people

Document Links

990
Filed on May 7, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$562,224
Expenses
$0
Net Income
$562,224
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $562,224
100%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $12,474,979
Total Liabilities $12,474,979
Net Assets $0
Compensation
Key Employees and Officers Compensation Related Other
Henry S Webber Until Dec 2021 (Chairman Of The Board) $0 $839,929 $257,998
Amy B Kweskin (Director) $0 $482,174 $60,859
Rebecca L Brown (Director) $0 $435,990 $44,969
Jd Long Ii (Director) $0 $347,167 $47,636
Mary Campbell (President) $0 $312,480 $48,396
Angie Leahy (Treasurer) $0 $294,438 $40,628
Mark Amiri Until Dec 2021 (Executive Vice President) $0 $286,571 $42,089
Thomas J Blackwell (Secretary) $0 $200,855 $59,119
Stephen C Condrin (Vice President) $0 $208,893 $40,310
Joanna Schooler (Director) $0 $147,851 $24,226
Rachel Siegert (Vice President) $0 $142,951 $21,520
Amye Kim As Of 2122 (Executive Vice President) $0 $0 $0
+ View more people

Document Links

990
Filed on May 12, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$432,911
Expenses
$0
Net Income
$432,911
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $9
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $432,902
100.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $10,347,424
Total Liabilities $10,347,424
Net Assets $0
Compensation
Key Employees and Officers Compensation Related Other
Henry S Webber (Chairman Of The Board) $0 $529,841 $44,253
Rebecca L Brown (Director) $0 $405,185 $36,630
Amy B Kweskin (Director) $0 $365,004 $57,407
Jd Long Ii (Director) $0 $361,124 $39,353
Mary Campbell (President/Director) $0 $315,372 $23,917
Mark Amiri (Executive Vice President) $0 $273,415 $30,266
Angie Leahy (Treasurer) $0 $236,707 $25,603
Thomas J Blackwell (Secretary) $0 $194,539 $50,923
Stephen C Condrin (Vice President) $0 $201,053 $30,102
Joanna Schooler (Director) $0 $140,195 $12,702
Rachel Siegert (Vice President) $0 $135,524 $9,382
+ View more people

Document Links

990
Filed on May 16, 2022

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$155,854
Expenses
$0
Net Income
$155,854
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $12,308
7.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $143,546
92.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $8,300,252
Total Liabilities $8,300,252
Net Assets $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$423,097
Expenses
$0
Net Income
$423,097
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $23,993
5.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $399,104
94.3%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $8,608,657
Total Liabilities $8,608,657
Net Assets $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$54,638
Expenses
$0
Net Income
$54,638
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2,522
4.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $52,116
95.4%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $8,383,313
Total Liabilities $8,383,313
Net Assets $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$162,368
Expenses
$0
Net Income
$162,368
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2,407
1.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $159,961
98.5%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $8,650,502
Total Liabilities $8,650,502
Net Assets $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$424,567
Expenses
$0
Net Income
$424,567
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $1,362
0.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $423,205
99.7%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $7,655,712
Total Liabilities $7,655,712
Net Assets $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$188,365
Expenses
$0
Net Income
$188,365
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $1,110
0.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $187,255
99.4%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $7,878,851
Total Liabilities $7,878,851
Net Assets $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$70,929
Expenses
$0
Net Income
$70,929
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2,143
3.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $68,786
97.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $7,483,112
Total Liabilities $7,483,112
Net Assets $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$0
Expenses
$0
Net Income
$0
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $5,726
Bond Proceeds $0
Royalties $0
Rental Property Income -$5,726
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $5,477,121
Total Liabilities $5,477,121
Net Assets $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$0
Expenses
$0
Net Income
$0
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $1,194
Bond Proceeds $0
Royalties $0
Rental Property Income -$1,194
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $11,151,077
Total Liabilities $11,151,077
Net Assets $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$0
Expenses
$0
Net Income
$0
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $617
Bond Proceeds $0
Royalties $0
Rental Property Income -$617
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $11,459,397
Total Liabilities $11,459,397
Net Assets $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

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