Thomas G & Andrea Mendell

New York, NY
Tax-exempt since Feb. 1989
EIN: 13-3437893

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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.

Donations to this organization are tax deductible.

Revenue

$332k (2025)

Expenses

$226k (2025)

Total Assets

$802k (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 July
2025

Revenue

$331,634

Expenses

$225,882

Net Income

$105,752

Net Assets

$801,513

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$197,930	59.7%
Interest Revenue	$458	0.1%
Dividends	$23,275	7.0%
Sales of Assets	$109,971	33.2%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$220,982	97.8%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$801,513
Total Liabilities	$0
Net Assets	$801,513

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0

990-PF

Filed on Nov. 26, 2025

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

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Fiscal Year Ending July
2024

Revenue

$352,124

Expenses

$299,867

Net Income

$52,257

Net Assets

$769,996

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$295,698	84.0%
Interest Revenue	$933	0.3%
Dividends	$24,309	6.9%
Sales of Assets	$27,684	7.9%
Other Income	$3,500	1.0%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$295,901	98.7%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$769,996
Total Liabilities	$0
Net Assets	$769,996

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0

990-PF

Filed on Dec. 13, 2024

Primary tax return for a private foundation's activities, finances, and governance

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XML

Fiscal Year Ending July
2023

Revenue

$57,487

Expenses

$191,533

Net Income

-$134,046

Net Assets

$616,623

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$1,722	3.0%
Dividends	$25,901	45.1%
Sales of Assets	$29,864	51.9%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$183,259	95.7%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$616,623
Total Liabilities	$0
Net Assets	$616,623

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0

990-PF

Filed on Dec. 12, 2023

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending July
2022

Revenue

$241,603

Expenses

$172,345

Net Income

$69,258

Net Assets

$684,676

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$423	0.2%
Dividends	$22,905	9.5%
Sales of Assets	$218,275	90.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$168,350	97.7%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$684,676
Total Liabilities	$0
Net Assets	$684,676

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0

990-PF

Filed on Dec. 15, 2022

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending July
2021

Revenue

$418,029

Expenses

$130,250

Net Income

$287,779

Net Assets

$662,291

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$300,350	71.8%
Interest Revenue	$24	0.0%
Dividends	$19,743	4.7%
Sales of Assets	$97,912	23.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$128,125	98.4%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$662,292
Total Liabilities	$1
Net Assets	$662,291

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0

990-PF

Filed on Dec. 14, 2021

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending July
2020

Revenue

$382,621

Expenses

$176,378

Net Income

$206,243

Net Assets

$473,028

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$245,469	64.2%
Interest Revenue	$535	0.1%
Dividends	$18,381	4.8%
Sales of Assets	$118,236	30.9%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$173,875	98.6%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$473,029
Total Liabilities	$1
Net Assets	$473,028

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0

990-PF

Filed on Dec. 14, 2020

Primary tax return for a private foundation's activities, finances, and governance

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PDF XML

Fiscal Year Ending July
2019

Revenue

$148,390

Expenses

$210,589

Net Income

-$62,199

Net Assets

$343,935

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$1,985	1.3%
Dividends	$20,260	13.7%
Sales of Assets	$126,145	85.0%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$204,925	97.3%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$343,935
Total Liabilities	$0
Net Assets	$343,935

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0

990-PF

Filed on Dec. 11, 2019

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending July
2018

Revenue

$165,484

Expenses

$147,576

Net Income

$17,908

Net Assets

$451,721

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$150,775	91.1%
Interest Revenue	$1,775	1.1%
Dividends	$12,934	7.8%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$145,200	98.4%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$451,721
Total Liabilities	$0
Net Assets	$451,721

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0

990-PF

Filed on Feb. 20, 2019

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending July
2017

Revenue

$455,262

Expenses

$172,250

Net Income

$283,012

Net Assets

$433,813

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$273,609	60.1%
Interest Revenue	$1,312	0.3%
Dividends	$10,803	2.4%
Sales of Assets	$169,538	37.2%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$169,900	98.6%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$433,813
Total Liabilities	$0
Net Assets	$433,813

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0

990-PF

Filed on Dec. 13, 2017

Primary tax return for a private foundation's activities, finances, and governance

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PDF XML

Fiscal Year Ending July
2016

Revenue

$21,900

Expenses

$165,080

Net Income

-$143,180

Net Assets

$319,956

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$856	3.9%
Dividends	$7,076	32.3%
Sales of Assets	$13,968	63.8%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$163,005	98.7%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$319,956
Total Liabilities	$0
Net Assets	$319,956

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0
Richard W Herbst (Trustee)	$0	$0

990-PF

Filed on Dec. 8, 2016

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending July
2015

Revenue

$302,075

Expenses

$171,733

Net Income

$130,342

Net Assets

$463,136

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$115,138	38.1%
Interest Revenue	$418	0.1%
Dividends	$7,062	2.3%
Sales of Assets	$179,457	59.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$153,740	89.5%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$463,136
Total Liabilities	$0
Net Assets	$463,136

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0
Richard W Herbst (Trustee)	$0	$0

990-PF

Filed on March 14, 2016

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending July
2014

Revenue

$591,903

Expenses

$52,883

Net Income

$539,020

Net Assets

$435,607

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$153,962	26.0%
Interest Revenue	$139	0.0%
Dividends	$9,565	1.6%
Sales of Assets	$428,237	72.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$47,985	90.7%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$435,607
Total Liabilities	$0
Net Assets	$435,607

Compensation

Key Employees and Officers	Compensation	Other
Thomas G Mendell (Trustee)	$0	$0
Andrea Mendell (Trustee)	$0	$0
Richard W Herbst (Trustee)	$0	$0

990-PF

Filed on Dec. 12, 2014

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending July
2013

Revenue

$83,132

Expenses

$84,777

Net Income

-$1,645

Net Assets

$45,049

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$28	0.0%
Dividends	$13,921	16.7%
Sales of Assets	$61,777	74.3%
Other Income	$7,406	8.9%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$82,530	97.3%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$45,049
Total Liabilities	$0
Net Assets	$45,049

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending July
2012

Revenue

$45,903

Expenses

$126,959

Net Income

-$81,056

Net Assets

$46,693

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$10,575	23.0%
Sales of Assets	$35,305	76.9%
Other Income	$23	0.1%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$125,709	99.0%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$46,694
Total Liabilities	$1
Net Assets	$46,693

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending July
2011

Revenue

$19,984

Expenses

$196,234

Net Income

-$176,250

Net Assets

$127,750

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$19,984	100%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$194,484	99.1%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$127,750
Total Liabilities	$0
Net Assets	$127,750

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending July
2010

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending July
2009

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

990-PF

Primary tax return for a private foundation's activities, finances, and governance

Primary tax return for a private foundation'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.

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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

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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Updated January 26, 2026

Thomas G & Andrea Mendell

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $332k (2025)

Expenses $226k (2025)

Total Assets $802k (2025)

Total Liabilities $0 (2025)

Tax Filings by Year

Fiscal Year Ending July 2025

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending July 2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

Revenue

$332k (2025)

Expenses

$226k (2025)

Total Assets

$802k (2025)

Total Liabilities

$0 (2025)

Fiscal Year Ending July
2025

Fiscal Year Ending July
2024

Fiscal Year Ending July
2023

Fiscal Year Ending July
2022

Fiscal Year Ending July
2021

Fiscal Year Ending July
2020

Fiscal Year Ending July
2019

Fiscal Year Ending July
2018

Fiscal Year Ending July
2017

Fiscal Year Ending July
2016

Fiscal Year Ending July
2015

Fiscal Year Ending July
2014

Fiscal Year Ending July
2013

Fiscal Year Ending July
2012

Fiscal Year Ending July
2011

Fiscal Year Ending July
2010

Fiscal Year Ending July
2009

Fiscal Year Ending July
2008

Fiscal Year Ending July
2007

Fiscal Year Ending July
2006

Fiscal Year Ending July
2005

Fiscal Year Ending July
2002