The Sontag Foundation

Private foundation · EIN 59-3634325 · since 2000sontagfoundation.org·Canada, United States·Updated 13 October 2026

At a glance

$7.2M
Annual giving, 2024 tax year
From the Form 990-PF filing
$10,000 to $250k
Grant range
From grants in the 990-PF filings
$113k
Typical grant (median)
35 grants in the latest filing
Open to applications
Rolling, no deadlines · unsolicited applications welcome

Key takeaways

  • The Sontag Foundation is dedicated to advancing brain cancer research, so it is a strong fit only for organisations and investigators working in this field, including therapeutics, diagnostics, medical devices and other technologies; its geographic focus is the United States and Canada.
  • Around eight in ten of its grants to organisations fall between $10,000 and $250,000, with a median grant of about $115,000, so a request in that range is realistic, though it has also made a single $3,000,000 grant to an organisation that regrants to others.
  • Named programmes have set amounts: the Distinguished Scientist Award is $750,000, the ASCO Conquer Cancer - Sontag Foundation Young Investigator Award is $50,000, and the AACR-Sontag Foundation Brain Cancer Research Fellowship is $120,000.
  • Applications are accepted on a rolling basis, and for the Distinguished Scientist Award this means applying through the online grant portal with recommendation letters and institutional officer approval uploaded by the deadline; this award does not fund projects focused on metastatic brain cancer or clinical trials research.
  • The foundation appears quite relationship-led, since 91% of its grant dollars went to organisations it had also funded in the previous two filings, so new applicants should be prepared for a competitive field and may wish to build a connection before applying.

Overview

The Sontag Foundation is a US private foundation based in Ponte Vedra Beach, FL.

What they fund

Profile derived from the foundation's IRS Form 990-PF filings (TY2024, TY2023, TY2022) and its website, with every statement checked against those sources. Sources read on 7 October 2026.

Priority Areas

The Sontag Foundation is dedicated to advancing brain cancer research by investing in brilliant scientists pursuing bold, innovative and transformative ideas. Its Distinguished Scientist Award supports the careers of young investigators pursuing high-risk projects at a critical stage, with funds disbursed to a sponsoring institution for the award winner. Through the Sontag Innovation Fund, it seeks to accelerate solutions to diagnose, treat, prevent and cure brain cancer. The fund works with both for-profit and non-profit entities, using loans and equity investments to advance its charitable mission and recycle capital. Its stated interests include therapeutics, diagnostics, medical devices and other technologies. Other giving includes investigator fellowships and young-investigator awards for brain-tumour research.

Themes

  • Brain cancer research
  • Therapeutics
  • Diagnostics
  • Medical devices
  • Other technologies

Geographic Focus

United States; Canada.

What They Don't Fund

  • The Distinguished Scientist Award only: projects focused on metastatic brain cancer; clinical trials research

How to apply

For the Distinguished Scientist Award, applicants submit through the online grant portal; required documents, including recommendation letters and institutional officer approval, must be uploaded by the deadline.

Application success factors

  • Repeat giving: In its TY2024 filing, 91% of its grant dollars to organisations went to organisations it had also funded in its TY2022 or TY2023 filing.
  • Grant size: Across its TY2022, TY2023 and TY2024 filings, half of its 111 grants to organisations were about $115,000 or less.

What the foundation says:

  • The Innovation Fund focuses on opportunities that advance its charitable mission and seeks impact alongside a return of principal.

Where grants go

From grants to organisations in the foundation’s filings for tax years 2022–2024.

Grant dollars by state

Florida41%
Massachusetts16%
California10%
Texas8%
New York6%
Pennsylvania4%

6 other states: 13%

Outside the US or with no state on the filing: 3%

  • The largest single recipient received 32% of grant dollars to organisations.
  • In tax year 2024, 91% of grant dollars went to organisations The Sontag Foundation had funded in earlier filings.
  • <1% of grant dollars went directly to organisations outside the US (United Kingdom).
  • 32% of grant dollars went to intermediaries that regrant to other organisations.

Grants

35 grants in the latest filing analysed · median $113k

How much do they typically give?

Share of 35 grants in tax year 2024 by size

$2.5k–$5k3%
$5k–$10k11%
$10k–$25k0%
$25k–$50k17%
$50k–$100k0%
$100k–$250k51%
$250k–$500k14%
$500k–$1M0%
$1M and over3%

Median $113k (tax year 2024)

The largest grants to organisations in the foundation’s latest filing:

  • Community Foundation of Northeast Florida · For the exempt purposes of this organization
    $3,000,0002024 tax year
  • Brigham and Women's Hospital · For the exempt purposes of this organization
    $362,5002024 tax year
  • Regents of the University of Michigan · For the exempt purposes of this organization
    $350,0002024 tax year
  • Mark Foundation for Cancer Research · For the exempt purposes of this organization
    $300,0002024 tax year
  • Boston Children's Hospital · For the exempt purposes of this organization
    $262,5002024 tax year
  • California Institute of Technology · For the exempt purposes of this organization
    $250,0002024 tax year
  • Regents Of Univ Of Ca-San Francisco · For the exempt purposes of this organization
    $187,5002024 tax year
  • Rice University · For the exempt purposes of this organization
    $150,0002024 tax year

Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.

Officers and directors

  • Clay Tousey III — Director
  • Katherine Verble — Director
  • Carolyn Mathis — Director
  • Ben Chatraw — Director
  • Jeffrey E Bernardo — Director
  • Jennifer H Levinson — Director
  • Daniel M Ryan — Director
  • Grant M Conway — Director
  • Bradley D Mottier — Director
  • Frederick B Sontag — Director

From the latest Form 990-PF filing

3 years of tax filings

YearTotal expensesGrants paidAssetsFiling document
2022 tax year$8,565,078$6,088,898$171,085,703Filing for 2022 tax year
2023 tax year$9,190,581$5,648,007$188,991,575Filing for 2023 tax year
2024 tax year$10,044,071$7,153,332$223,286,343Filing for 2024 tax year

Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.

Sources

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