565 Mayfield Foundation

San Francisco, CA
Tax-exempt since Jan. 2001
EIN: 94-3381996

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Type of Nonprofit

Designated as a 501(c)(3) 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: Human Services — Multipurpose and Other / Single Organization Support (NTEE)

Donations to this organization are tax deductible.

Revenue

$70.2k (2024)

Expenses

$190k (2024)

Total Assets

$3.46M (2024)

Total Liabilities

$46.2k (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

Revenue

$70,154

Expenses

$189,854

Net Income

-$119,700

Net Assets

$3,413,589

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$68,281	97.3%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$1,873	2.7%
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	$3,459,780
Total Liabilities	$46,191
Net Assets	$3,413,589

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Daryl Messinger (Secretary/Director)	$0	$0	$0
Debbie Tuttle Berkowitz (Treasurer)	$0	$181,095	$15,275
Brian Mendel (Assistant Treasurer)	$0	$153,022	$20,190

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990

Filed on Nov. 14, 2024

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

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XML

Fiscal Year Ending June
2023

Revenue

$86,149

Expenses

$202,509

Net Income

-$116,360

Net Assets

$3,212,154

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$64,552	74.9%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$21,597	25.1%
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	$3,258,820
Total Liabilities	$46,666
Net Assets	$3,212,154

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Daryl Messinger (Secretary/Director)	$0	$0	$0
Michael Chertok (Treasurer To Sept 2022)	$0	$131,265	$16,847
Debbie Tuttle Berkowitz (Treasurer From Sept 2022)	$0	$177,312	$14,374
Brian Mendel (Assistant Treasurer)	$0	$128,497	$18,111

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990

Filed on April 11, 2024

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

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XML

Fiscal Year Ending June
2022

Revenue

$246,587

Expenses

$209,028

Net Income

$37,559

Net Assets

$3,208,135

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$135,168	54.8%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$111,419	45.2%
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	$3,259,634
Total Liabilities	$51,499
Net Assets	$3,208,135

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Steuart Klein (Secretary/Director)	$0	$0	$0
Michael Chertok (Treasurer)	$0	$167,200	$22,910

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990

Filed on April 5, 2023

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

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Schedules ▼

XML

Fiscal Year Ending June
2021

Revenue

$119,855

Expenses

$187,726

Net Income

-$67,871

Net Assets

$3,781,376

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$50,909	42.5%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$68,946	57.5%
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	$3,869,317
Total Liabilities	$87,941
Net Assets	$3,781,376

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Steuart Klein (Secretary/Director)	$0	$0	$0
Michael Chertok (Treasurer)	$0	$167,019	$22,484

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990

Filed on May 9, 2022

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

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Schedules ▼

XML

Fiscal Year Ending June
2020

Revenue

$118,841

Expenses

$268,067

Net Income

-$149,226

Net Assets

$3,179,559

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$58,088	48.9%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$60,753	51.1%
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	$3,304,877
Total Liabilities	$125,318
Net Assets	$3,179,559

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Steuart Klein (Secretary/Director)	$0	$0	$0
Michael Chertok (Treasurer)	$0	$163,414	$20,799

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990

Filed on May 12, 2021

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

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Schedules ▼

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Fiscal Year Ending June
2019

Revenue

$161,680

Expenses

$182,538

Net Income

-$20,858

Net Assets

$3,373,809

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$66,518	41.1%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$95,162	58.9%
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	$3,418,852
Total Liabilities	$45,043
Net Assets	$3,373,809

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Steuart Klein (Secretary/Director)	$0	$0	$0
Mark Reisbaum (Treasurer)	$0	$0	$0

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990

Filed on July 11, 2020

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

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Fiscal Year Ending June
2018

Revenue

$58,681

Expenses

$186,198

Net Income

-$127,517

Net Assets

$3,328,108

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$58,681	100%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$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	$3,372,410
Total Liabilities	$44,302
Net Assets	$3,328,108

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Steuart Klein (Secretary/Director)	$0	$0	$0
Mark Reisbaum (Treasurer)	$0	$0	$0

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990

Filed on March 7, 2019

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

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Schedules ▼

PDF XML

Fiscal Year Ending June
2017

Revenue

Expenses

$177,891

Net Income

-$177,889

Net Assets

$3,276,788

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$2	100%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$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	$3,280,814
Total Liabilities	$4,026
Net Assets	$3,276,788

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Steuart Klein (Secretary/Director)	$0	$0	$0
Mark Reisbaum (Treasurer)	$0	$219,360	$12,776

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990

Filed on March 8, 2018

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

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Schedules ▼

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Fiscal Year Ending June
2016

Revenue

Expenses

$173,910

Net Income

-$173,909

Net Assets

$3,071,029

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$1	100%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$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	$3,114,625
Total Liabilities	$43,596
Net Assets	$3,071,029

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Steuart Klein (Secretary/Director)	$0	$0	$0
Mark Reisbaum (Treasurer)	$0	$248,479	$22,897

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990

Filed on Feb. 15, 2017

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

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Fiscal Year Ending June
2015

Revenue

Expenses

$165,438

Net Income

-$165,437

Net Assets

$3,264,759

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$1	100%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$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	$3,307,626
Total Liabilities	$42,867
Net Assets	$3,264,759

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Steuart Klein (Secretary/Director)	$0	$0	$0
Mark Reisbaum (Treasurer)	$0	$240,800	$18,809

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990

Filed on Feb. 12, 2016

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

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Fiscal Year Ending June
2014

Revenue

Expenses

$165,697

Net Income

-$165,696

Net Assets

$3,315,532

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$1	100%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$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	$3,319,574
Total Liabilities	$4,042
Net Assets	$3,315,532

Compensation

Key Employees and Officers	Compensation	Related	Other
Lela Sarnat (President/Director)	$0	$0	$0
Joan Levison (Vice President/Director)	$0	$0	$0
Steuart Klein (Secretary/Director)	$0	$0	$0
Mark Reisbaum (Treasurer)	$0	$223,327	$19,996

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990

Filed on Feb. 13, 2015

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

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Fiscal Year Ending June
2013

Revenue

$275,212

Expenses

$162,930

Net Income

$112,282

Net Assets

$3,045,239

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$124,337	45.2%
Program Services	$0
Investment Income	$41,502	15.1%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$109,373	39.7%
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	$3,085,478
Total Liabilities	$40,239
Net Assets	$3,045,239

990

Filed on May 27, 2014

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

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Fiscal Year Ending June
2012

Revenue

$14

Expenses

$181,191

Net Income

-$181,177

Net Assets

$2,789,302

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$14	100%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$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	$2,826,721
Total Liabilities	$37,419
Net Assets	$2,789,302

990

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

PDF

Fiscal Year Ending June
2011

Revenue

$171,151

Expenses

$137,114

Net Income

$34,037

Net Assets

$2,927,120

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$75,000	43.8%
Program Services	$0
Investment Income	$46,854	27.4%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$49,297	28.8%
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	$2,941,018
Total Liabilities	$13,898
Net Assets	$2,927,120

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.

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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

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Updated December 5, 2025

565 Mayfield Foundation

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $70.2k (2024)

Expenses $190k (2024)

Total Assets $3.46M (2024)

Total Liabilities $46.2k (2024)

Tax Filings by Year

Fiscal Year Ending June 2024

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

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Fiscal Year Ending June 2023

Extracted Financial Data

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Compensation

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Fiscal Year Ending June 2022

Extracted Financial Data

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Compensation

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Fiscal Year Ending June 2021

Extracted Financial Data

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Compensation

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Fiscal Year Ending June 2020

Extracted Financial Data

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Compensation

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Fiscal Year Ending June 2019

Extracted Financial Data

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Compensation

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Fiscal Year Ending June 2018

Extracted Financial Data

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Compensation

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Fiscal Year Ending June 2017

Extracted Financial Data

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Compensation

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Fiscal Year Ending June 2016

Extracted Financial Data

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Compensation

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Fiscal Year Ending June 2015

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

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Fiscal Year Ending June 2014

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

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Fiscal Year Ending June 2013

Extracted Financial Data

Extracted Financial Data from Form 990

Document Links

990

Revenue

$70.2k (2024)

Expenses

$190k (2024)

Total Assets

$3.46M (2024)

Total Liabilities

$46.2k (2024)

Fiscal Year Ending June
2024

Fiscal Year Ending June
2023

Fiscal Year Ending June
2022

Fiscal Year Ending June
2021

Fiscal Year Ending June
2020

Fiscal Year Ending June
2019

Fiscal Year Ending June
2018

Fiscal Year Ending June
2017

Fiscal Year Ending June
2016

Fiscal Year Ending June
2015

Fiscal Year Ending June
2014

Fiscal Year Ending June
2013

Fiscal Year Ending June
2012

Fiscal Year Ending June
2011

Fiscal Year Ending June
2010

Fiscal Year Ending June
2009

Fiscal Year Ending June
2008

Fiscal Year Ending June
2007

Fiscal Year Ending Dec.
2005

Fiscal Year Ending June
2005

Fiscal Year Ending June
2004

Fiscal Year Ending June
2003

Fiscal Year Ending June
2002

Fiscal Year Ending June
2001