The Delaware State Capitol

Form 990-PFTax year 2025EIN 81-4837981

Posner Foundation

A private foundation in Wilmington, DE. Its return for tax year 2025 lists 15 grants and $166,800 paid in grants.

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $166,800

    Grants listed
    15
    Assets, end of year
    $1,492,747
  • Tax year 2024

    $160,000

    Grants listed
    20
    Assets, end of year
    $1,548,300
  • Tax year 2023

    $153,450

    Grants listed
    18
    Assets, end of year
    $1,632,028
  • Tax year 2022

    $133,250

    Grants listed
    15
    Assets, end of year
    $1,742,757
  • Tax year 2021

    $116,750

    Grants listed
    14
    Assets, end of year
    $1,840,293
  • Tax year 2020

    $120,000

    Grants listed
    15
    Assets, end of year
    $1,837,806
  • Tax year 2019

    $106,000

    Grants listed
    13
    Assets, end of year
    $1,930,885
  • Tax year 2018

    $100,000

    Grants listed
    12
    Assets, end of year
    $1,978,158

Grants paid in 2025

15 grants, largest first

As listed on the return.

  1. The Branson SchoolRoss, CA

    General & Unrestricted

    $25,000
  2. The Desert BiennialPalm Springs, CA

    Kimsooja's installation To Breathe for Desert X

    $25,000
  3. Saint Josephs Arts FoundationSan Francisco, CA

    General & Unrestricted

    $20,000
  4. Childrens Hospital of Wisconsin IncMilwaukee, WI

    General & Unrestricted

    $10,000
  5. Coalition for Children Youth & FamiliesMilwaukee, WI

    General & Unrestricted

    $10,000
  6. Greater Milwaukee Foundation IncMilwaukee, WI

    Israel Support Fund

    $10,000
  7. Marin Montessori School IncCorte Madera, CA

    General & Unrestricted

    $10,000
  8. Museum AssociatesLos Angeles, CA

    General & Unrestricted

    $10,000
  9. University of Wisconsin FoundationMilwaukee, WI

    Cancer Research Fund

    $10,000
  10. Childrens Outing AssnMilwaukee, WI

    General & Unrestricted

    $9,400
  11. Milwaukee Art Museum IncMilwaukee, WI

    General & Unrestricted

    $9,400
  12. Boys and Girls Club of Greater Milwaukee IncMilwaukee, WI

    General & Unrestricted

    $8,000
  13. The Bay School of San FranciscoSan Francisco, CA

    for the Robotics club and general support

    $5,000
  14. Get Lit Words Ignite IncLos Angeles, CA

    General & Unrestricted

    $4,000
  15. Planned Parenthood Los AngelesLos Angeles, CA

    General & Unrestricted

    $1,000

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Arts and culture5 grants $68,40058% of the total
  2. Education3 grants $40,00034% of the total
  3. Youth development1 grant $8,0007% of the total
  4. Health1 grant $1,000<1% of the total

By State

Grants to organizations with a US address, latest year.

  1. California8 grants $100,000
  2. Wisconsin7 grants $66,800

Officers, directors and trustees

2 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • David PosnerPres, Treas, Dir Hours 1Pay $0
  • Wendy PosnerDir, Sec, VP Hours 1Pay $0

The return

More foundations

Similar foundations

Same main cause (arts and culture), giving between a quarter and four times this foundation’s where possible, nearby first.

  1. The Anna Emery Hanson Charitable Foundation 1Wilmington, DE 33 grants Preselected only $169,989 giving
  2. Freedman Family FundWilmington, DE 21 grants Preselected only $163,110 giving
  3. De Llano Rolnick Family FoundationWilmington, DE 2 grants Preselected only $160,000 giving
  4. Marilyn J Dakin Family FoundationWilmington, DE 4 grants Preselected only $160,000 giving
  5. Barbetta Family FoundationWilmington, DE 19 grants Preselected only $155,000 giving