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Wisconsin Montessori Society Inc

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Educational Institutions and Related Activities / Kindergarten, Preschool, Nursery School, Early Admissions (NTEE)

Donations to this organization are tax deductible.

Details

According to its June 2024 tax filing, this nonprofit:

Operated a school
Organization is a school. Details are reported on Schedule E.

Summary charts: organization finances over time

Revenue
$7.65M (2024)

Expenses
$6.42M (2024)

Total Assets
$14.5M (2024)

Total Liabilities
$2.6M (2024)

Source: Form 990 tax filings from 2012 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
$7,654,845
Expenses
$6,416,940
Net Income
$1,237,905
Net Assets
$11,947,740
Notable Sources of Revenue Percent of Total Revenue
Contributions $746,079
9.7%
Program Services $6,746,626
88.1%
Investment Income $160,041
2.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $8,047
0.1%
Sales of Assets -$10,481
Net Inventory Sales $0
Other Revenue $4,533
0.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $219,684
3.4%
Professional Fundraising Fees $0
Other Salaries and Wages $3,434,095
53.5%
Assets/Debt
Total Assets $14,544,510
Total Liabilities $2,596,770
Net Assets $11,947,740
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $208,461 $0 $10,837
Julie Ledger (Trustee) $0 $0 $0
Christian Walters (Trustee) $0 $0 $0
Will Loder (Trustee) $0 $0 $0
Mona Shah (Trustee) $0 $0 $0
Kathleen O'brien (Vice President) $0 $0 $0
Rob Dejong (Treasurer) $0 $0 $0
Katherine Lewis (President) $0 $0 $0

Document Links

Fiscal Year Ending June
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$6,720,100
Expenses
$5,949,428
Net Income
$770,672
Net Assets
$10,574,457
Notable Sources of Revenue Percent of Total Revenue
Contributions $342,707
5.1%
Program Services $6,304,013
93.8%
Investment Income $92,711
1.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising -$7,601
Sales of Assets -$16,861
Net Inventory Sales $0
Other Revenue $5,131
0.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $199,991
3.4%
Professional Fundraising Fees $0
Other Salaries and Wages $3,163,817
53.2%
Assets/Debt
Total Assets $13,705,495
Total Liabilities $3,131,038
Net Assets $10,574,457
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $186,922 $0 $10,837
Julie Ledger (Trustee) $0 $0 $0
Christian Walters (Trustee) $0 $0 $0
Will Loder (Trustee) $0 $0 $0
Mona Shah (Trustee) $0 $0 $0
Kathleen O'brien (Vice President) $0 $0 $0
Rob Dejong (Treasurer) $0 $0 $0
Katherine Lewis (President) $0 $0 $0

Document Links

Fiscal Year Ending June
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$6,437,977
Expenses
$5,358,392
Net Income
$1,079,585
Net Assets
$9,699,855
Notable Sources of Revenue Percent of Total Revenue
Contributions $486,629
7.6%
Program Services $5,969,413
92.7%
Investment Income $6,416
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising -$4,959
Sales of Assets -$65,244
Net Inventory Sales $0
Other Revenue $45,722
0.7%
Notable Expenses Percent of Total Expenses
Executive Compensation $190,815
3.6%
Professional Fundraising Fees $0
Other Salaries and Wages $2,798,849
52.2%
Assets/Debt
Total Assets $12,863,252
Total Liabilities $3,163,397
Net Assets $9,699,855
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $178,076 $0 $10,837
Julie Ledger (Trustee) $0 $0 $0
Christian Walters (Trustee) $0 $0 $0
Will Loder (Trustee) $0 $0 $0
Kathleen O'brien (Vice President) $0 $0 $0
Rob Dejong (Treasurer) $0 $0 $0
Katherine Lewis (President) $0 $0 $0

Document Links

Fiscal Year Ending June
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$6,092,899
Expenses
$5,007,699
Net Income
$1,085,200
Net Assets
$8,705,941
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,253,801
20.6%
Program Services $4,758,826
78.1%
Investment Income $4,854
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $56,159
0.9%
Sales of Assets $6,729
0.1%
Net Inventory Sales $0
Other Revenue $12,530
0.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $189,507
3.8%
Professional Fundraising Fees $0
Other Salaries and Wages $2,564,907
51.2%
Assets/Debt
Total Assets $11,921,890
Total Liabilities $3,215,949
Net Assets $8,705,941
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $172,695 $0 $10,815
Brian Amore (Trustee) $0 $0 $0
Joseph Thomae (Trustee) $0 $0 $0
Julie Ledger (Trustee) $0 $0 $0
Christian Walters (Trustee) $0 $0 $0
Will Loder (Trustee) $0 $0 $0
Jasmine Johnson (Trustee) $0 $0 $0
Kathleen O'brien (Vice President) $0 $0 $0
Rob Dejong (Treasurer) $0 $0 $0
Katherine Lewis (President) $0 $0 $0

Document Links

Fiscal Year Ending June
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$5,385,094
Expenses
$4,866,888
Net Income
$518,206
Net Assets
$7,620,741
Notable Sources of Revenue Percent of Total Revenue
Contributions $215,998
4.0%
Program Services $5,101,002
94.7%
Investment Income $16,293
0.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $11,774
0.2%
Sales of Assets -$565
Net Inventory Sales $0
Other Revenue $40,592
0.8%
Notable Expenses Percent of Total Expenses
Executive Compensation $174,662
3.6%
Professional Fundraising Fees $0
Other Salaries and Wages $2,694,289
55.4%
Assets/Debt
Total Assets $11,317,467
Total Liabilities $3,696,726
Net Assets $7,620,741
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $163,076 $0 $10,815
Brian Amore (Trustee) $0 $0 $0
Joseph Thomae (Trustee) $0 $0 $0
Julie Ledger (Trustee) $0 $0 $0
Christian Walters (Trustee) $0 $0 $0
Will Loder (Trustee) $0 $0 $0
Jasmine Johnson (Trustee) $0 $0 $0
Kathleen O'brien (Vice President) $0 $0 $0
Rob Dejong (Treasurer) $0 $0 $0
Katherine Lewis (President) $0 $0 $0

Document Links

Fiscal Year Ending June
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$5,555,838
Expenses
$4,908,936
Net Income
$646,902
Net Assets
$7,102,535
Notable Sources of Revenue Percent of Total Revenue
Contributions $639,344
11.5%
Program Services $5,128,148
92.3%
Investment Income $4,949
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $71,906
1.3%
Sales of Assets -$292,900
Net Inventory Sales $0
Other Revenue $4,391
0.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $164,661
3.4%
Professional Fundraising Fees $0
Other Salaries and Wages $2,660,677
54.2%
Assets/Debt
Total Assets $8,455,783
Total Liabilities $1,353,248
Net Assets $7,102,535
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $158,076 $0 $10,815
Brian Amore (Trustee) $0 $0 $0
Joseph Thomae (Trustee) $0 $0 $0
Dave Swanson (Trustee) $0 $0 $0
Julie Ledger (Trustee) $0 $0 $0
Maya Hughes (Secretary) $0 $0 $0
Christian Walters (Trustee) $0 $0 $0
Kathleen O'brien (Vice President) $0 $0 $0
Rob Dejong (Treasurer) $0 $0 $0
Katherine Lewis (President) $0 $0 $0

Document Links

Fiscal Year Ending June
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$6,156,461
Expenses
$4,838,515
Net Income
$1,317,946
Net Assets
$6,455,633
Notable Sources of Revenue Percent of Total Revenue
Contributions $976,257
15.9%
Program Services $5,095,420
82.8%
Investment Income $2,287
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $70,891
1.2%
Sales of Assets -$10,748
Net Inventory Sales $0
Other Revenue $22,354
0.4%
Notable Expenses Percent of Total Expenses
Executive Compensation $164,268
3.4%
Professional Fundraising Fees $0
Other Salaries and Wages $2,709,208
56.0%
Assets/Debt
Total Assets $7,830,140
Total Liabilities $1,374,507
Net Assets $6,455,633
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $178,303 $0 $9,949
Brian Amore (Trustee) $0 $0 $0
Joseph Thomae (Trustee) $0 $0 $0
Dave Swanson (Trustee) $0 $0 $0
Julie Ledger (Trustee) $0 $0 $0
Maya Hughes (Secretary) $0 $0 $0
Christina Berger (Trustee) $0 $0 $0
Amit Verma (Trustee) $0 $0 $0
Christian Walters (Trustee) $0 $0 $0
Kathleen O'brien (Vice President) $0 $0 $0
Rob Dejong (Treasurer) $0 $0 $0
Katherine Lewis (President) $0 $0 $0

Document Links

Fiscal Year Ending June
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$5,346,776
Expenses
$4,812,272
Net Income
$534,504
Net Assets
$5,137,687
Notable Sources of Revenue Percent of Total Revenue
Contributions $568,296
10.6%
Program Services $4,717,555
88.2%
Investment Income $1,218
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $87,159
1.6%
Sales of Assets -$41,072
Net Inventory Sales $0
Other Revenue $13,620
0.3%
Notable Expenses Percent of Total Expenses
Executive Compensation $164,580
3.4%
Professional Fundraising Fees $0
Other Salaries and Wages $2,564,543
53.3%
Assets/Debt
Total Assets $6,642,538
Total Liabilities $1,504,851
Net Assets $5,137,687
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $113,984 $0 $7,143
Brian Amore (Trustee) $0 $0 $0
Natalie Harlan (Trustee) $0 $0 $0
Joseph Thomae (Trustee) $0 $0 $0
Dave Swanson (Trustee) $0 $0 $0
Julie Ledger (Trustee) $0 $0 $0
Maya Hughes (Secretary) $0 $0 $0
Christina Berger (Trustee) $0 $0 $0
Amit Verma (Trustee) $0 $0 $0
Kathleen O'brien (Vice President) $0 $0 $0
Rob Dejong (Treasurer) $0 $0 $0
Katherine Lewis (President) $0 $0 $0

Document Links

Fiscal Year Ending June
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$4,608,525
Expenses
$4,216,627
Net Income
$391,898
Net Assets
$4,603,183
Notable Sources of Revenue Percent of Total Revenue
Contributions $258,691
5.6%
Program Services $4,284,480
93.0%
Investment Income $1,548
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $49,395
1.1%
Sales of Assets $3,156
0.1%
Net Inventory Sales $0
Other Revenue $11,255
0.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $128,547
3.0%
Professional Fundraising Fees $0
Other Salaries and Wages $2,324,039
55.1%
Assets/Debt
Total Assets $6,083,927
Total Liabilities $1,480,744
Net Assets $4,603,183
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $122,262 $0 $7,978
Brian Amore (Director As Required) $0 $0 $0
Natalie Harlan (Director As Required) $0 $0 $0
Joseph Thomae (Director As Required) $0 $0 $0
Dave Swanson (Director As Required) $0 $0 $0
Julie Ledger (Director As Required) $0 $0 $0
Joan Shafer (Trustee / Ex Officio) $0 $0 $0
Maya Hughes (Director As Required) $0 $0 $0
Christina Berger (Director As Required) $0 $0 $0
Amit Verma (Director As Required) $0 $0 $0
Kathleen O'brien (Vice Pres As Required) $0 $0 $0
Brenda Brandt (Treasurer As Required) $0 $0 $0
Kate Lewis (President As Required) $0 $0 $0

Document Links

Fiscal Year Ending June
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$4,675,428
Expenses
$4,341,798
Net Income
$333,630
Net Assets
$4,211,285
Notable Sources of Revenue Percent of Total Revenue
Contributions $260,687
5.6%
Program Services $4,184,052
89.5%
Investment Income $1,795
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $55,777
1.2%
Sales of Assets -$39,715
Net Inventory Sales $0
Other Revenue $212,832
4.6%
Notable Expenses Percent of Total Expenses
Executive Compensation $129,445
3.0%
Professional Fundraising Fees $0
Other Salaries and Wages $2,332,728
53.7%
Assets/Debt
Total Assets $5,942,849
Total Liabilities $1,731,564
Net Assets $4,211,285
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $120,462 $0 $8,128
Brian Amore (Director As Required) $0 $0 $0
Natalie Harlan (Director As Required) $0 $0 $0
Joseph Thomae (Director As Required) $0 $0 $0
Dave Swanson (Director As Required) $0 $0 $0
Julie Ledger (Director As Required) $0 $0 $0
Joan Shafer (Trustee / Ex Officio) $0 $0 $0
Jeffrey Childs Sr (Director As Required) $0 $0 $0
Christina Berger (Director As Required) $0 $0 $0
Amit Verma (Director As Required) $0 $0 $0
Kathleen O'brien (Vice Pres As Required) $0 $0 $0
John Yingling (Treasurer As Required) $0 $0 $0
Kate Lewis (President As Required) $0 $0 $0

Document Links

Fiscal Year Ending June
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$4,641,138
Expenses
$4,271,391
Net Income
$369,747
Net Assets
$3,877,655
Notable Sources of Revenue Percent of Total Revenue
Contributions $251,431
5.4%
Program Services $4,288,888
92.4%
Investment Income $1,633
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $64,133
1.4%
Sales of Assets $9,044
0.2%
Net Inventory Sales $0
Other Revenue $26,009
0.6%
Notable Expenses Percent of Total Expenses
Executive Compensation $131,973
3.1%
Professional Fundraising Fees $0
Other Salaries and Wages $2,312,235
54.1%
Assets/Debt
Total Assets $5,807,747
Total Liabilities $1,930,092
Net Assets $3,877,655
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Monica Van Aken (Head Of School) $123,788 $0 $7,990
Brian Amore (Director As Required) $0 $0 $0
Natalie Harlan (Director As Required) $0 $0 $0
Dave Swanson (Director As Required) $0 $0 $0
Julie Ledger (Director As Required) $0 $0 $0
Joan Shafer (Trustee / Ex Officio) $0 $0 $0
Jeffrey Childs Sr (Director As Required) $0 $0 $0
Christina Berger (Director As Required) $0 $0 $0
Kate Lewis (Director As Required) $0 $0 $0
Amit Verma (Director As Required) $0 $0 $0
Kathleen O'brien (Vice Pres As Required) $0 $0 $0
Joseph Thomae (President As Required) $0 $0 $0
John Yingling (Treasurer As Required) $0 $0 $0

Document Links

Fiscal Year Ending June
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$4,594,024
Expenses
$4,338,333
Net Income
$255,691
Net Assets
$3,507,908
Notable Sources of Revenue Percent of Total Revenue
Contributions $184,531
4.0%
Program Services $4,350,554
94.7%
Investment Income $1,750
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $40,201
0.9%
Sales of Assets -$2,171
Net Inventory Sales $0
Other Revenue $19,159
0.4%
Notable Expenses Percent of Total Expenses
Executive Compensation $128,554
3.0%
Professional Fundraising Fees $0
Other Salaries and Wages $2,208,363
50.9%
Assets/Debt
Total Assets $5,716,155
Total Liabilities $2,208,247
Net Assets $3,507,908

Document Links

Fiscal Year Ending June
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$4,457,555
Expenses
$4,535,965
Net Income
-$78,410
Net Assets
$3,252,217
Notable Sources of Revenue Percent of Total Revenue
Contributions $194,297
4.4%
Program Services $4,142,626
92.9%
Investment Income $1,934
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $27,236
0.6%
Sales of Assets -$2,487
Net Inventory Sales $0
Other Revenue $93,949
2.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $128,506
2.8%
Professional Fundraising Fees $0
Other Salaries and Wages $2,191,947
48.3%
Assets/Debt
Total Assets $5,832,545
Total Liabilities $2,580,328
Net Assets $3,252,217

Document Links

Fiscal Year Ending June
2011

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

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

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

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

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

Fiscal Year Ending June
2006

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

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

Fiscal Year Ending June
2004

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

Fiscal Year Ending June
2003

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

Fiscal Year Ending June
2002

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

About 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 »

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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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