THIRD STREET FOUNDATION

As filed

Subsection

03

NTEE code

T20

Classification

1000

Street

100 MARKET ST UNIT 302

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Other organizations at this address

11 other organizations in the IRS Business Master File list the same street address. matched by us

This address is a suite or unit (UNIT 302). Organizations that share one are often clients of the same office-services firm, accountant or registered agent rather than related to each other.

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

• ALLATT WALSH FOUNDATION

  EIN 20-2515474

• CAMPBELLS FAMILY FOUNDATION INC

  EIN 84-1717877

• EQUILIBRIUM PROJECT FOUNDATION

  EIN 84-6444513

• JAFFE FOUNDATION

  EIN 06-1469004

• LOUIS P SINGER FUND INC

  EIN 13-6077788

• MORF FOUNDATION INC

  EIN 01-0575002

• RAMSEY WURTELE FOUNDATION

  EIN 92-1170149

• THE HOLTZMAN FAMILY FOUNDATION INC

  EIN 52-6036091

• VIENER FOUNDATION INC

  EIN 13-3669547

• WEATHERLOW FOUNDATION

  EIN 27-4283491

• WINDHOVER FOUNDATION

  EIN 31-1630033

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

• 2025

  Revenue

  $57,244

  Expenses

  $139,230

  Contributions

  $1,868

  Grants paid

  $124,000

• 2024

  Revenue

  $112,939

  Expenses

  $165,812

  Contributions

  $44,280

  Grants paid

  $149,000

• 2023

  Revenue

  $1,414,580

  Expenses

  $144,911

  Contributions

  $1,354,538

  Grants paid

  $135,000

• 2022

  Revenue

  $82,776

  Expenses

  $81,225

  Contributions

  $80,000

  Grants paid

  $79,000

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

• 2021 · 990-PF

  Revenue

  $80,021

  Expenses

  $78,204

  Assets (EOY)

  $204,267

• 2020 · 990-PF

  Revenue

  $80,563

  Expenses

  $65,759

  Assets (EOY)

  $202,450

• 2019 · 990-PF

  Revenue

  $83,548

  Expenses

  $63,043

  Assets (EOY)

  $187,646

• 2018 · 990-PF

  Revenue

  $80,534

  Expenses

  $56,119

  Assets (EOY)

  $167,131

• 2017 · 990-PF

  Revenue

  $80,278

  Expenses

  $73,077

  Assets (EOY)

  $142,720

• 2016 · 990-PF

  Revenue

  $80,115

  Expenses

  $61,566

  Assets (EOY)

  $135,519

• 2015 · 990-PF

  Revenue

  $80,023

  Expenses

  $99,252

  Assets (EOY)

  $116,970

• 2014 · 990-PF

  Revenue

  $80,016

  Expenses

  $51,013

  Assets (EOY)

  $136,203

• 2012 · 990-PF

  Revenue

  — not reported

  Expenses

  $79,458

  Assets (EOY)

  $84,174

• 2011 · 990-PF

  Revenue

  — not reported

  Expenses

  $70,544

  Assets (EOY)

  $83,586

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants paid

From Part XV of the 2025 Form 990-PF , the newest this foundation filed that we hold.

• ST PAUL'S SCHOOL

  $16,000

  CONCORD, MA · GENERAL SUPPORT

• BOSTON AREA GLEANERS

  $11,500

  ACTON, MA · GENERAL SUPPORT

• HARVARD COLLEGE

  $11,000

  CAMBRIDGE, MA · HARVARD COLLEGE AND HARVARD GRADUATE SCHOOL OF EDUCATION

• CORNING MUSEUM OF GLASS

  $10,000

  CORNING, NY · GENERAL SUPPORT

• Waterfront Alliance

  $10,000

  New York, NE · GENERAL SUPPORT

• OPEN TABLE

  $6,500

  CONCORD, MA · GENERAL SUPPORT

• Christ Episcopal Church

  $5,000

  Corning, NE · GENERAL SUPPORT

• Groton Hill Music Center

  $5,000

  Groton, MA · GENERAL SUPPORT

• DOCTORS WITHOUT BORDERS

  $4,000

  HAGERSTOWN, MD · GENERAL SUPPORT

• EQUAL JUSTICE INITIATIVE

  $4,000

  MONTGOMERY, AL · GENERAL SUPPORT

The 10 largest to organizations. The filing page shows this return's totals, and the API serves every grant row.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

No itemized grant names this organization as a recipient. Only grants over $5,000 are itemized, and only by filers of the full Form 990.

Other IRS files