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Leon A & Esther F Blum Foundation Inc

  • San Mateo, CA
  • Tax-exempt since Sept. 1982
  • EIN: 94-2819074

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: Unknown / Unclassified (NTEE)

Donations to this organization are tax deductible.

Details

According to its June 2024 tax filing, this nonprofit:

Reported conflict of interest transactions
Organizations must report loans, grants or business transactions with interested parties, which may include key employees and officers, their family members and any businesses in which they hold a controlling interest. These transactions must be reported on Schedule L.

Summary charts: organization finances over time

Revenue
$308k (2024)

Expenses
$608k (2024)

Total Assets
$12.1M (2024)

Total Liabilities
$0 (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
$308,247
Expenses
$608,248
Net Income
-$300,001
Net Assets
$12,134,556
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $306,849
99.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $1,398
0.5%
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 $12,134,556
Total Liabilities $0
Net Assets $12,134,556
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Susan Freiwald (Trustee) $0 $0 $0
David Faigman (Trustee) $0 $0 $0
Bruce M Lubarsky (Officer) $0 $0 $0
David G Finkelstein (Officer) $0 $0 $0
+ 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
$343,428
Expenses
$579,640
Net Income
-$236,212
Net Assets
$11,216,321
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $349,647
> 100%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$6,219
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 $11,216,321
Total Liabilities $0
Net Assets $11,216,321
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Susan Freiwald (Trustee) $0 $0 $0
Mark Yates (Trustee) $0 $0 $0
David Faigman (Trustee) $0 $0 $0
Bruce M Lubarsky (Officer) $0 $0 $0
David G Finkelstein (Officer) $0 $0 $0
+ View more people

Document Links

990
Filed on May 15, 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
$591,611
Expenses
$649,270
Net Income
-$57,659
Net Assets
$10,718,997
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $648,450
> 100%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$56,839
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 $10,718,997
Total Liabilities $0
Net Assets $10,718,997
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Susan Freiwald (Trustee) $0 $0 $0
Anthony Niedwiecki (Trustee) $0 $0 $0
David Faigman (Trustee) $0 $0 $0
Bruce M Lubarsky (President) $0 $0 $0
+ View more people

Document Links

990
Filed on May 15, 2023

Primary 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 Form 990
Revenue
$1,466,651
Expenses
$1,016,952
Net Income
$449,699
Net Assets
$13,031,926
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $295,708
20.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $1,170,943
79.8%
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 $13,031,926
Total Liabilities $0
Net Assets $13,031,926
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Susan Freiwald (Trustee) $0 $0 $0
Anthony Niedwiecki (Trustee) $0 $0 $0
David Faigman (Trustee) $0 $0 $0
Bruce M Lubarsky (President) $0 $0 $0
+ View more people

Document Links

990
Filed on May 16, 2022

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

View Filing
PDF XML

Fiscal Year Ending June
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$347,940
Expenses
$961,558
Net Income
-$613,618
Net Assets
$11,192,962
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $281,574
80.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $66,366
19.1%
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 $11,192,962
Total Liabilities $0
Net Assets $11,192,962
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Susan Freiwald (Trustee) $0 $0 $0
Anthony Niedwiecki (Trustee) $0 $0 $0
David Faigman (Trustee) $0 $0 $0
Bruce M Lubarsky (President) $0 $0 $0
+ View more people

Document Links

990
Filed on May 17, 2021

Primary 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 Form 990
Revenue
$505,174
Expenses
$794,609
Net Income
-$289,435
Net Assets
$12,244,478
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $345,412
68.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $159,762
31.6%
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 $12,244,478
Total Liabilities $0
Net Assets $12,244,478
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
John Trasvina (Treasurer) $0 $0 $0
Katharine Van Tassel (Trustee) $0 $0 $0
Anthony Niedwiecki (Trustee) $0 $0 $0
David Faigman (Trustee) $0 $0 $0
Bruce M Lubarsky (President) $0 $0 $0
+ View more people

Document Links

990
Filed on July 15, 2020

Primary 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 Form 990
Revenue
$464,783
Expenses
$917,825
Net Income
-$453,042
Net Assets
$12,599,884
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $257,694
55.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $207,089
44.6%
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 $12,599,884
Total Liabilities $0
Net Assets $12,599,884
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
John Trasvina (Treasurer) $0 $0 $0
Katharine Van Tassel (Trustee) $0 $0 $0
Anthony Niedwiecki (Trustee) $0 $0 $0
David Faigman (Trustee) $0 $0 $0
Bruce M Lubarsky (President) $0 $0 $0
+ View more people

Document Links

990
Filed on May 15, 2019

Primary 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 Form 990
Revenue
$345,700
Expenses
$669,529
Net Income
-$323,829
Net Assets
$12,577,275
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $217,487
62.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $128,213
37.1%
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 $12,577,275
Total Liabilities $0
Net Assets $12,577,275
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
John Trasvina (Treasurer) $0 $0 $0
Rachel Van Cleave (Trustee) $0 $0 $0
Greg Brandes (Trustee) $0 $0 $0
David Faigman (Trustee) $0 $0 $0
Bruce M Lubarsky (President) $0 $0 $0
+ View more people

Document Links

990
Filed on May 16, 2018

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

View Filing
XML

Fiscal Year Ending June
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$352,306
Expenses
$607,220
Net Income
-$254,914
Net Assets
$12,032,430
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $220,147
62.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $132,159
37.5%
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 $12,032,430
Total Liabilities $0
Net Assets $12,032,430
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
John Trasvina (Treasurer) $0 $0 $0
Basil Dezes (Trustee) $0 $0 $0
Rachel Van Cleave (Trustee) $0 $0 $0
Greg Brandes (Trustee) $0 $0 $0
David Faigman (Trustee) $0 $0 $0
Bruce M Lubarsky (President) $0 $0 $0
+ View more people

Document Links

990
Filed on May 15, 2017

Primary 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 Form 990
Revenue
$1,791,597
Expenses
$591,226
Net Income
$1,200,371
Net Assets
$12,984,282
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $254,401
14.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $1,534,981
85.7%
Net Inventory Sales $0
Other Revenue $2,215
0.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $13,439,049
Total Liabilities $454,767
Net Assets $12,984,282
Other
Reported conflict of interest transactions
Compensation
Key Employees and Officers Compensation Related Other
Jane O'hara Gamp Dean (Treasurer) $0 $0 $0
Frank Wu Dean (Trustee) $0 $0 $0
Rachel Van Cleave Dean (Trustee) $0 $0 $0
Jeff Brand Dean (Secretary) $0 $0 $0
Bruce M Lubarsky (President) $0 $0 $0
+ View more people

Document Links

990
Filed on May 16, 2016

Primary 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 Form 990
Revenue
$5,818,334
Expenses
$1,276,825
Net Income
$4,541,509
Net Assets
$12,548,129
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $183,229
3.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $199,846
3.4%
Net Fundraising $0
Sales of Assets $5,435,259
93.4%
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 $12,548,129
Total Liabilities $0
Net Assets $12,548,129
Compensation
Key Employees and Officers Compensation Related Other
Jane O'hara Gamp Dean (Treasurer) $0 $0 $0
Frank Wu Dean (Trustee) $0 $0 $0
Rachel Van Cleave Dean (Trustee) $0 $0 $0
John Trasvina Dean (Secretary) $0 $0 $0
Bruce M Lubarsky (President) $0 $0 $0
+ View more people

Document Links

990
Filed on May 14, 2015

Primary 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 Form 990
Revenue
$7,618,202
Expenses
$652,637
Net Income
$6,965,565
Net Assets
$10,887,151
Notable Sources of Revenue Percent of Total Revenue
Contributions $7,086,689
93.0%
Program Services $0
Investment Income $185,402
2.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $150,456
2.0%
Net Fundraising $0
Sales of Assets $195,655
2.6%
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 $10,981,860
Total Liabilities $94,709
Net Assets $10,887,151

Document Links

990
Filed on July 8, 2014

Primary 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 Form 990
Revenue
$280,478
Expenses
$571,244
Net Income
-$290,766
Net Assets
$3,657,615
Notable Sources of Revenue Percent of Total Revenue
Contributions $311,719
> 100%
Program Services $0
Investment Income $104,751
37.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$135,992
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 $3,657,615
Total Liabilities $0
Net Assets $3,657,615

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
$109,335
Expenses
$507,446
Net Income
-$398,111
Net Assets
$4,255,077
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $97,534
89.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $11,801
10.8%
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 $4,255,077
Total Liabilities $0
Net Assets $4,255,077

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
PDF (2 of 2)

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

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

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

990

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

PDF

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

990

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

PDF

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

990

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

PDF

Fiscal Year Ending June
2001

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.

API

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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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