Skip to content
ProPublica Donate
ProPublica Donate

Big Ten Club Of Southern California Inc

  • Calabasas, CA
  • Tax-exempt since Aug. 1951
  • EIN: 95-6045590

Organization summary

Type of Nonprofit

Designated as a Social and recreational clubs.

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
$7.45k (2025)

Expenses
$3.45k (2025)

Total Assets
$96.7k (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 March
2025

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$7,448
Expenses
$3,451
Net Income
$3,997
Net Assets
$96,724
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $7
0.1%
Net Fundraising $3,441
46.2%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $96,724
Total Liabilities $0
Net Assets $96,724
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Brian Harris (Treasurer) $0 $0
Rondale Davis (Vice President) $0 $0
Katherine Pilot (Secretary) $0 $0
Derek Hildebrandt (President) $0 $0
+ View more people

Document Links

990-EZ
Filed on Feb. 13, 2026

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

View Filing
XML

Fiscal Year Ending March
2024

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$9,554
Expenses
$1,953
Net Income
$7,601
Net Assets
$92,727
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $5
0.1%
Net Fundraising $7,239
75.8%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $92,727
Total Liabilities $0
Net Assets $92,727
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Nicole Markota (Treasurer) $0 $0
Libby Dubay (Vice President) $0 $0
Brian Harris (Secretary) $0 $0
Derek Hildebrandt (President) $0 $0
+ View more people

Document Links

990-EZ
Filed on Feb. 10, 2025

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

View Filing
XML

Fiscal Year Ending March
2023

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$6,485
Expenses
$3,329
Net Income
$3,156
Net Assets
$85,126
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $7
0.1%
Net Fundraising $4,588
70.7%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $85,126
Total Liabilities $0
Net Assets $85,126
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Nicole Markota (Treasurer) $0 $0
Libby Dubay (Vice President) $0 $0
Brian Harris (Secretary) $0 $0
Derek Hildebrandt (President) $0 $0
+ View more people

Document Links

990-EZ
Filed on Feb. 12, 2024

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

View Filing
PDF XML

Fiscal Year Ending March
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
-$14,625
Expenses
$3,707
Net Income
-$18,332
Net Assets
$81,970
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $6
Net Fundraising -$15,736
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $81,970
Total Liabilities $0
Net Assets $81,970
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Nicole Markota (Treasurer) $0 $0
Libby Dubay (Vice President) $0 $0
Brian Harris (Secretary) $0 $0
Derek Hildebrandt (President) $0 $0
+ View more people

Document Links

990-EZ
Filed on Feb. 9, 2023

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

View Filing
PDF XML

Fiscal Year Ending March
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$188
Expenses
$3,145
Net Income
-$2,957
Net Assets
$100,302
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $10
5.3%
Net Fundraising -$341
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $100,302
Total Liabilities $0
Net Assets $100,302
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Nicole Markota (Treasurer) $0 $0
Libby Dubay (Vice President) $0 $0
Brian Harris (Secretary) $0 $0
Derek Hildebrandt (President) $0 $0
+ View more people

Document Links

990-EZ
Filed on Feb. 7, 2022

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

View Filing
PDF XML

Fiscal Year Ending March
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$12,472
Expenses
$4,459
Net Income
$8,013
Net Assets
$103,259
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $10
0.1%
Net Fundraising $7,593
60.9%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $103,259
Total Liabilities $0
Net Assets $103,259
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Nicole Markota (President/Treasurer) $0 $0
Libby Dubay (Vice President) $0 $0
Brian Harris (Secretary) $0 $0

Document Links

990-EZ
Filed on Feb. 4, 2021

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

View Filing
PDF XML

Fiscal Year Ending March
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$5,446
Expenses
$5,479
Net Income
-$33
Net Assets
$95,246
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $10
0.2%
Net Fundraising $2,481
45.6%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $95,246
Total Liabilities $0
Net Assets $95,246
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$7,975
Expenses
$5,079
Net Income
$2,896
Net Assets
$95,279
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $9
0.1%
Net Fundraising $3,624
45.4%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $95,279
Total Liabilities $0
Net Assets $95,279
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

No Document Links

The IRS has provided extracted financial data for this filing, but has not yet released the source documents.

Fiscal Year Ending March
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$12,717
Expenses
$5,453
Net Income
$7,264
Net Assets
$92,383
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $8
0.1%
Net Fundraising $4,564
35.9%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $223
1.8%
Assets/Debt
Total Assets $92,383
Total Liabilities $0
Net Assets $92,383
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$14,622
Expenses
$6,195
Net Income
$8,427
Net Assets
$85,119
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $8
0.1%
Net Fundraising $7,554
51.7%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $287
2.0%
Assets/Debt
Total Assets $85,119
Total Liabilities $0
Net Assets $85,119
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$2,191
Expenses
$3,226
Net Income
-$1,035
Net Assets
$76,692
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $8
0.4%
Net Fundraising -$1,965
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $76,692
Total Liabilities $0
Net Assets $76,692
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$23,761
Expenses
$9,968
Net Income
$13,793
Net Assets
$77,727
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $1,782
7.5%
Investment Income $0
Net Fundraising $14,526
61.1%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $77,727
Total Liabilities $0
Net Assets $77,727
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$6,126
Expenses
$9,423
Net Income
-$3,297
Net Assets
$63,934
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $1,021
16.7%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $63,934
Total Liabilities $0
Net Assets $63,934
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
-$23
Expenses
$8,775
Net Income
-$8,798
Net Assets
$67,231
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $4
Net Fundraising -$6,540
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $885
Assets/Debt
Total Assets $67,231
Total Liabilities $0
Net Assets $67,231
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$3,507
Expenses
$10,007
Net Income
-$6,500
Net Assets
$76,029
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $9
0.3%
Net Fundraising -$4,672
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $76,029
Total Liabilities $0
Net Assets $76,029
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
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

Fiscal Year Ending March
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-EZ

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

PDF

Fiscal Year Ending March
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-EZ

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

PDF

Fiscal Year Ending March
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-EZ

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

PDF

Fiscal Year Ending March
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

990-EZ

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

PDF

Fiscal Year Ending March
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-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.

API

The data powering this website is available programmatically, via an API. Read the API documentation »

See an issue with the data?

Contact Us

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.

Updated