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Endurance Foundation

  • Boston, MA
  • Tax-exempt since March 2013
  • EIN: 35-2435568

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: Philanthropy, Voluntarism and Grantmaking Foundations / Private Grantmaking Foundations (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$198k (2024)

Expenses
$112k (2024)

Total Assets
$1.55M (2024)

Total Liabilities
$0 (2024)

Source: Form 990 tax filings from 2012 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 Dec.
2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$197,943
Expenses
$111,523
Net Income
$86,420
Net Assets
$1,553,396
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $9,767
4.9%
Dividends $24,008
12.1%
Sales of Assets $159,939
80.8%
Other Income $4,229
2.1%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $80,000
71.7%
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 $1,553,396
Total Liabilities $0
Net Assets $1,553,396
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on May 15, 2025

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

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$30,103
Expenses
$115,010
Net Income
-$84,907
Net Assets
$1,427,978
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $5,794
19.2%
Dividends $27,709
92.0%
Sales of Assets -$4,627
Other Income $1,227
4.1%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $86,000
74.8%
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 $1,427,978
Total Liabilities $0
Net Assets $1,427,978
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on Nov. 15, 2024

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

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$75,253
Expenses
$121,050
Net Income
-$45,797
Net Assets
$1,524,278
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $4,709
6.3%
Dividends $34,478
45.8%
Sales of Assets $27,829
37.0%
Other Income $8,237
10.9%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $93,000
76.8%
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 $1,524,278
Total Liabilities $0
Net Assets $1,524,278
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on Nov. 8, 2023

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$127,673
Expenses
$77,082
Net Income
$50,591
Net Assets
$1,577,636
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $5,205
4.1%
Dividends $24,371
19.1%
Sales of Assets $95,037
74.4%
Other Income $3,060
2.4%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $44,000
57.1%
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 $1,577,636
Total Liabilities $0
Net Assets $1,577,636
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on Nov. 4, 2022

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

View Filing
XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$90,700
Expenses
$26,846
Net Income
$63,854
Net Assets
$1,527,044
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $8,222
9.1%
Dividends $17,889
19.7%
Sales of Assets $60,665
66.9%
Other Income $3,924
4.3%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $0
Compensation of Officers* $16,314
60.8%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $1,527,045
Total Liabilities $1
Net Assets $1,527,044
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on Nov. 5, 2021

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

View Filing
XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$20,772
Expenses
$107,064
Net Income
-$86,292
Net Assets
$1,463,190
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $10,378
50.0%
Dividends $25,451
> 100%
Sales of Assets $0
Other Income $2,871
13.8%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $81,000
75.7%
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 $1,463,191
Total Liabilities $1
Net Assets $1,463,190
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on Nov. 10, 2020

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$181,710
Expenses
$106,844
Net Income
$74,866
Net Assets
$1,549,483
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $10,597
5.8%
Dividends $26,401
14.5%
Sales of Assets $140,799
77.5%
Other Income $3,913
2.2%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $81,557
76.3%
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 $1,549,483
Total Liabilities $0
Net Assets $1,549,483
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on May 13, 2019

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

View Filing
PDF XML
PDF (2 of 2)

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$59,288
Expenses
$104,914
Net Income
-$45,626
Net Assets
$1,474,617
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $14,674
24.8%
Dividends $19,974
33.7%
Sales of Assets $19,333
32.6%
Other Income $5,307
9.0%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $80,500
76.7%
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 $1,474,617
Total Liabilities $0
Net Assets $1,474,617
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on May 15, 2018

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$136,850
Expenses
$112,405
Net Income
$24,445
Net Assets
$1,519,257
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $127,995
93.5%
Interest Revenue $14,620
10.7%
Dividends $10,841
7.9%
Sales of Assets -$19,134
Other Income $2,528
1.8%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $90,000
80.1%
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 $1,519,257
Total Liabilities $0
Net Assets $1,519,257
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on May 12, 2017

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

View Filing
PDF XML
PDF (2 of 2)

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$65,879
Expenses
$96,239
Net Income
-$30,360
Net Assets
$1,494,812
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $7,546
11.5%
Dividends $25,455
38.6%
Sales of Assets $29,269
44.4%
Other Income $3,609
5.5%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $75,000
77.9%
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 $1,494,812
Total Liabilities $0
Net Assets $1,494,812
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on May 16, 2016

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$98,681
Expenses
$89,542
Net Income
$9,139
Net Assets
$1,254,428
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $6,843
6.9%
Dividends $21,909
22.2%
Sales of Assets $68,671
69.6%
Other Income $1,258
1.3%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $70,896
79.2%
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 $1,254,428
Total Liabilities $0
Net Assets $1,254,428
Compensation
Key Employees and Officers Compensation Other
Matthew A Berlin (Trustee) $0 $0

Document Links

990-PF
Filed on May 14, 2015

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$101,654
Expenses
$89,523
Net Income
$12,131
Net Assets
$1,246,032
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $10,618
10.4%
Dividends $22,970
22.6%
Sales of Assets $68,066
67.0%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $67,000
74.8%
Compensation of Officers* $6,996
7.8%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $1,246,032
Total Liabilities $0
Net Assets $1,246,032

Document Links

990-PF

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

PDF

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$1,315,438
Expenses
$75,114
Net Income
$1,240,324
Net Assets
$1,240,324
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $1,064,603
80.9%
Interest Revenue $0
Dividends $24,043
1.8%
Sales of Assets $226,792
17.2%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $65,000
86.5%
Compensation of Officers* $7,107
9.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $1,240,324
Total Liabilities $0
Net Assets $1,240,324

Document Links

990-PF

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.

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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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.

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