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Montessori Charter School Ofpetaluma

  • Petaluma, CA
  • Tax-exempt since May 2008
  • EIN: 26-0748455

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 / Single Organization Support (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$75.2k (2025)

Expenses
$130k (2025)

Total Assets
$4.25k (2025)

Total Liabilities
$0 (2025)

Source: Form 990 tax filings from 2011 to 2025

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
2025

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$75,210
Expenses
$129,829
Net Income
-$54,619
Net Assets
$4,253
Notable Sources of Revenue Percent of Total Revenue
Contributions $13,035
17.3%
Program Services $0
Investment Income $0
Net Fundraising $65,839
87.5%
Sales of Assets $0
Net Inventory Sales -$3,664
Other Revenue $0
Assets/Debt
Total Assets $4,253
Total Liabilities $0
Net Assets $4,253
Compensation
Key Employees and Officers Compensation Other
Carlos Garbiras (President) $0 $0
Christine Schildt (Vice Preside) $0 $0
Jessie Faraci (Treasurer) $0 $0
Rosanne Toretsky (Secretary) $0 $0
Suzy Gee (Secretary) $0 $0
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Document Links

990-EZ
Filed on Oct. 23, 2025

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

View Filing
XML

Fiscal Year Ending June
2024

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$57,687
Expenses
$7,039
Net Income
$50,648
Net Assets
$58,871
Notable Sources of Revenue Percent of Total Revenue
Contributions $28,095
48.7%
Program Services $0
Investment Income $0
Net Fundraising $31,724
55.0%
Sales of Assets $0
Net Inventory Sales -$2,132
Other Revenue $0
Assets/Debt
Total Assets $58,871
Total Liabilities $0
Net Assets $58,871
Compensation
Key Employees and Officers Compensation Other
Leslie Gibson (Chair) $0 $0
Jessie Faraci (Treasurer) $0 $0
Gabrielle O'halloran (Secretary) $0 $0
Anna Garcia (Board Member) $0 $0
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Document Links

990-EZ
Filed on Nov. 15, 2024

Short form 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 990-EZ
Revenue
$85,556
Expenses
$131,349
Net Income
-$45,793
Net Assets
$8,223
Notable Sources of Revenue Percent of Total Revenue
Contributions $51,907
60.7%
Program Services $0
Investment Income $0
Net Fundraising $33,649
39.3%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $8,223
Total Liabilities $0
Net Assets $8,223
Compensation
Key Employees and Officers Compensation Other
Simone Rocine (President) $0 $0
Katelyn Giampaoli (Treasurer) $0 $0
Kristi Quint (Secretary) $0 $0

Document Links

990-EZ
Filed on Feb. 1, 2024

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

View Filing
PDF XML

Fiscal Year Ending June
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$89,268
Expenses
$51,120
Net Income
$38,148
Net Assets
$54,016
Notable Sources of Revenue Percent of Total Revenue
Contributions $63,638
71.3%
Program Services $0
Investment Income $0
Net Fundraising $25,630
28.7%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $54,016
Total Liabilities $0
Net Assets $54,016
Compensation
Key Employees and Officers Compensation Other
Simone Rocine (President) $0 $0
Casey Richter (Treasurer) $0 $0
Kristi Quint (Secretary) $0 $0

Document Links

990-EZ
Filed on Aug. 1, 2023

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

View Filing
PDF XML

Fiscal Year Ending June
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$42,515
Expenses
$36,422
Net Income
$6,093
Net Assets
$15,868
Notable Sources of Revenue Percent of Total Revenue
Contributions $42,515
100%
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $15,868
Total Liabilities $0
Net Assets $15,868
Compensation
Key Employees and Officers Compensation Other
Simone Wallace (President) $0 $0
Dave Smigielski (Treasurer) $0 $0
Kristi Quint (Secretary) $0 $0

Document Links

990-EZ
Filed on Feb. 25, 2022

Short form 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 990-EZ
Revenue
$60,330
Expenses
$89,351
Net Income
-$29,021
Net Assets
$9,774
Notable Sources of Revenue Percent of Total Revenue
Contributions $17,238
28.6%
Program Services $0
Investment Income $0
Net Fundraising $43,092
71.4%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $9,774
Total Liabilities $0
Net Assets $9,774
Compensation
Key Employees and Officers Compensation Other
Nicole Styx (Chair) $0 $0
Dave Smigielski (Treasurer) $0 $0
Kristi Quint (Secretary) $0 $0

Document Links

990-EZ
Filed on Oct. 6, 2020

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

View Filing
PDF XML

Fiscal Year Ending June
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$102,480
Expenses
$102,847
Net Income
-$367
Net Assets
$38,795
Notable Sources of Revenue Percent of Total Revenue
Contributions $38,262
37.3%
Program Services $0
Investment Income $0
Net Fundraising $64,218
62.7%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $38,795
Total Liabilities $0
Net Assets $38,795
Compensation
Key Employees and Officers Compensation Other
Nicole Styx (Chair) $0 $0
Lisa Reinheimer (Treasurer) $0 $0
Heather Strong (Secretary) $0 $0
Anita Pebbles (Vice Chair) $0 $0
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990-EZ
Filed on Nov. 13, 2019

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

View Filing
PDF XML

Fiscal Year Ending June
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$96,787
Expenses
$90,397
Net Income
$6,390
Net Assets
$39,162
Notable Sources of Revenue Percent of Total Revenue
Contributions $44,820
46.3%
Program Services $0
Investment Income $0
Net Fundraising $51,967
53.7%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $39,162
Total Liabilities $0
Net Assets $39,162
Compensation
Key Employees and Officers Compensation Other
Amy Atchley (Chair) $0 $0
Lisa Reinheimer (Treasurer) $0 $0
Julie Peterson (Secretary) $0 $0

Document Links

990-EZ
Filed on Jan. 14, 2019

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

View Filing
PDF XML

Fiscal Year Ending June
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$115,895
Expenses
$99,599
Net Income
$16,296
Net Assets
$32,772
Notable Sources of Revenue Percent of Total Revenue
Contributions $33,399
28.8%
Program Services $37,961
32.8%
Investment Income $0
Net Fundraising $42,842
37.0%
Sales of Assets $0
Net Inventory Sales $1,693
1.5%
Other Revenue $0
Assets/Debt
Total Assets $32,772
Total Liabilities $0
Net Assets $32,772
Compensation
Key Employees and Officers Compensation Other
Julie Petersen (Secretary) $0 $0
Amy Atchley (16/17 Chair) $0 $0
Melissa Franks (Treasurer) $0 $0
Jessica Holten Casper (Vice Chair) $0 $0
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990-EZ
Filed on Nov. 15, 2017

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

View Filing
PDF XML

Fiscal Year Ending June
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$101,095
Expenses
$81,457
Net Income
$19,638
Net Assets
$37,715
Notable Sources of Revenue Percent of Total Revenue
Contributions $30,388
30.1%
Program Services $41,235
40.8%
Investment Income $0
Net Fundraising $29,404
29.1%
Sales of Assets $0
Net Inventory Sales $68
0.1%
Other Revenue $0
Assets/Debt
Total Assets $37,715
Total Liabilities $0
Net Assets $37,715
Compensation
Key Employees and Officers Compensation Other
Rebekah Kruetz (Chairman) $0 $0
Amy Atchley (16/17 Chair) $0 $0
Melissa Franks (V Hair/Treas) $0 $0
Courtney Wolfe (Vice Chair) $0 $0
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Document Links

990-EZ
Filed on Feb. 11, 2017

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

View Filing
PDF XML

Fiscal Year Ending June
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$93,134
Expenses
$80,957
Net Income
$12,177
Net Assets
$18,077
Notable Sources of Revenue Percent of Total Revenue
Contributions $33,347
35.8%
Program Services $31,112
33.4%
Investment Income $0
Net Fundraising $27,225
29.2%
Sales of Assets $0
Net Inventory Sales $1,450
1.6%
Other Revenue $0
Assets/Debt
Total Assets $18,077
Total Liabilities $0
Net Assets $18,077
Compensation
Key Employees and Officers Compensation Other
Javier Alverde (Chairman) $0 $0
Eden Belov (Vice Chair) $0 $0
Nancy Feldstein (Vice Chair) $0 $0
Brian Cochran (Treasurer) $0 $0
Julie Compton (Secretary) $0 $0
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990-EZ
Filed on Dec. 23, 2016

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

View Filing
PDF XML

Fiscal Year Ending June
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$97,578
Expenses
$107,861
Net Income
-$10,283
Net Assets
$5,900
Notable Sources of Revenue Percent of Total Revenue
Contributions $42,873
43.9%
Program Services $23,995
24.6%
Investment Income $0
Net Fundraising $31,443
32.2%
Sales of Assets $0
Net Inventory Sales -$733
Other Revenue $0
Assets/Debt
Total Assets $5,900
Total Liabilities $0
Net Assets $5,900
Compensation
Key Employees and Officers Compensation Other
Matt Hautau (Chairman) $0 $0
Jennifer Oryn (Director) $0 $0
Sarah Mart (Vice President) $0 $0
Margareta Linde Karlson (Director) $0 $0
Beth Laurence (Treasurer) $0 $0
Abby Calvert (Secretary) $0 $0
Lisa Baird (Director) $0 $0
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990-EZ
Filed on May 14, 2015

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

View Filing
PDF XML

Fiscal Year Ending June
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$113,029
Expenses
$113,743
Net Income
-$714
Net Assets
$14,328
Notable Sources of Revenue Percent of Total Revenue
Contributions $48,310
42.7%
Program Services $18,158
16.1%
Investment Income $0
Net Fundraising $45,520
40.3%
Sales of Assets $0
Net Inventory Sales $1,041
0.9%
Other Revenue $0
Assets/Debt
Total Assets $14,328
Total Liabilities $0
Net Assets $14,328

Document Links

990-EZ
Filed on Dec. 16, 2013

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

View Filing
PDF XML

Fiscal Year Ending June
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$81,064
Expenses
$86,625
Net Income
-$5,561
Net Assets
$15,042
Notable Sources of Revenue Percent of Total Revenue
Contributions $50,574
62.4%
Program Services $13,656
16.8%
Investment Income $0
Net Fundraising $17,403
21.5%
Sales of Assets $0
Net Inventory Sales -$569
Other Revenue $0
Assets/Debt
Total Assets $15,042
Total Liabilities $0
Net Assets $15,042

Document Links

990-EZ

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

PDF

Fiscal Year Ending June
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$74,204
Expenses
$63,477
Net Income
$10,727
Net Assets
$20,603
Notable Sources of Revenue Percent of Total Revenue
Contributions $52,515
70.8%
Program Services $14,485
19.5%
Investment Income $0
Net Fundraising $6,888
9.3%
Sales of Assets $0
Net Inventory Sales $316
0.4%
Other Revenue $0
Assets/Debt
Total Assets $20,603
Total Liabilities $0
Net Assets $20,603

Document Links

990-EZ

Short form 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-EZ

Short form 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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About Nonprofit Explorer

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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