Private company

William Penn Foundation

American philanthropic foundation

The William Penn Foundation is a grant-making foundation established in 1945 in Philadelphia, Pennsylvania, by businessman Otto Haas and his wife Phoebe, and initially called the Phoebe Waterman Foundation. It strives to improve "the quality of life in the Greater Philadelphia region through efforts that foster rich cultural expression, strengthen children’s futures, and deepen connections to nature and community. " In 2008, it disbursed new and continuing grants worth $62,974,512.2 Its revenue was $109 million in 2023.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

  • HeadquartersPhiladelphia, United States1
  • Websitewilliampennfoundation.org
  • Legal form501(c)(3) organization1
  • Kind of organizationFoundation1
  • LEI1IMQLCSVA4FFR2KI7T833
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressC/O THE CORPORATION TRUST COMPANY, 19801 Wilmington, United States3
  • Registered withDivision of Corporations, Department of State, 3975213

The William Penn Foundation is a grant-making foundation established in 1945 in Philadelphia, Pennsylvania, by businessman Otto Haas and his wife Phoebe, and initially called the Phoebe Waterman Foundation. It strives to improve "the quality of life in the Greater Philadelphia region through efforts that foster rich cultural expression, strengthen children’s futures, and deepen connections to nature and community." In 2008, it disbursed new and continuing grants worth $62,974,512.2

Revenue over time

As stated on Wikidata, in the currency reported.

Revenue

William Penn Foundation revenue by year1$108.9M in 2023+60% since 2011
0$100.0M$200.0M$300.0M$400.0M2011: $68.2M$68.2M20112012: $36.4M$36.4M2012−47%2013: $152.3M$152.3M2013+319%2014: $171.4M$171.4M2014+13%2015: $107.4M$107.4M2015−37%2019: $266.8M$266.8M2019+149%2020: $175.8M$175.8M2020−34%2021: $378.6M$378.6M2021+115%2022: $79.9M$79.9M2022−79%2023: $108.9M$108.9M2023+36%
  • 2023$108.9M1
  • 2022$79.9M1
  • 2021$378.6M1
  • 2020$175.8M1
  • 2019$266.8M1
  • 2015$107.4M1

Timeline

  1. Nov 28, 1945Founded William Penn Foundation is founded3

Sources

The numbers on this page point here. Each one links to the record it came from.

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  2. 2
  3. 3