Siegel Family Endowment

Private foundation · EIN 45-1742989 · since 2011siegelendowment.org·United States·Updated 13 October 2026

At a glance

$27.8M
Annual giving, 2024 tax year
From the Form 990-PF filing
$100 to $3M
Grant range
From the funder's website
Open to applications
A mix of rolling and fixed deadlines · unsolicited applications welcome

Key takeaways

  • Siegel Family Endowment, based in New York, NY, funds organisations working at the intersections of learning, work and infrastructure, so check that your work sits within one of these themes before approaching.
  • Grants have ranged from $100 to $3,000,000, with total giving of $27,792,259 paid, so there is scope to pitch a request that matches your organisation's scale and need rather than assuming only small amounts are possible.
  • The foundation does not fund direct funding to individuals, so individuals should not apply.
  • The process is relationship-led rather than a simple open call: if you have not yet connected and believe your work aligns, reach out through the Contact Us page, and if the Endowment sees an opportunity to learn together a team member will follow up to schedule a conversation, with staff then working alongside you to author the proposal and reduce the burden on your organisation.
  • Its geographic focus is the United States, and grantees should expect to report on progress at least twice a year.

Overview

Siegel Family Endowment is a US private foundation based in New York, NY.

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 Endowment funds organisations tackling challenges at the intersections of learning, work and infrastructure, aiming to understand and shape technology’s impact on society. It supports holistic, learner-centred learning ecosystems that connect learners, schools and communities and advance equitable outcomes. In work, it focuses on enabling workers and communities to shape emerging technologies and on workplace innovation that fosters equity and prevents harm. In infrastructure, it focuses on just and equitable systems co-created with the communities that rely on them. Its inquiry-driven, collaborative approach funds initiatives, research and community-based work, while building relationships with innovative practitioners and supporting proximate leaders and organisations overlooked by traditional philanthropy. It works closely with grantees to learn, share insights and develop proposals together.

Themes

  • Learning
  • Work
  • Infrastructure

Geographic Focus

United States.

What They Don't Fund

  • Direct funding to individuals

How to apply

Organisations that have not yet connected and believe their work aligns may reach out through the Contact Us page; if Siegel sees an opportunity to learn together, a team member follows up to schedule a conversation.

Application success factors

What the foundation says:

  • Siegel values curious learners who ask big questions, challenge assumptions, learn from setbacks and embody lifelong learning.
  • It looks for community-driven partners who rely on community members, staff and local knowledge to build programmes and drive their work.
  • It values systems entrepreneurs who orient their programmes towards change at systems level.
  • It values field builders who work with others, recognising that long-term change requires coordinated players.
  • It seeks people and organisations overlooked by traditional philanthropy, including proximate leaders from the communities they serve.
  • Each decision considers factors including an organisation’s history, context and need.
  • Staff author proposals with prospective grantees to reduce the time and capacity burden on organisations.
  • Grantees report at least twice a year, using written or oral options.

Officers and directors

  • Kathleen Knight — Executive Director / President
  • Richard A Sauer — Treasurer
  • Sheri Vammen — Vice Chair, Secretary
  • David M Siegel — Director, Chairman

From the latest Form 990-PF filing

3 years of tax filings

YearTotal expensesGrants paidAssetsFiling document
2022 tax year$30,513,404$24,771,536$459,837,619Filing for 2022 tax year
2023 tax year$33,921,274$26,907,603$500,197,981Filing for 2023 tax year
2024 tax year$36,979,586$27,792,259$568,077,763Filing 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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