National Science Foundation | Ford Foundation | Rockefeller Foundation | John Simon Guggenheim Memorial Foundation | Electronic Frontier Foundation | Bill & Melinda Gates Foundation | New York Foundation for the Arts | Mozilla Foundation | Guggenheim Foundation | Alexander von Humboldt Foundation | Andrew W. Mellon Foundation | Wikimedia Foundation | Apache Software Foundation | foundation | Make-A-Wish Foundation | John D. and Catherine T. MacArthur Foundation | Clinton Foundation | Open Software Foundation | Konex Foundation | Foundation series | Cystic Fibrosis Foundation | Carnegie Foundation | Solomon R. Guggenheim Foundation | McKnight Foundation | Japan Foundation | Ingram Merrill Foundation | Helms Foundation College Basketball Player of the Year | Free Software Foundation | Calouste Gulbenkian Foundation | British Heart Foundation |
His philanthropic endeavors include contributions and collaborations with Paralyzed Veterans of America, Multiple Sclerosis Society, Make a Wish Foundation and Wounded Warriors, among others.
Walter is a patron for Cystic Fibrosis Australia, an ambassador for the Austin Hospital, Melbourne, Make A Wish Foundation (South West Victoria) and Barwon Health and also does work for the Neuroscience Foundation and a number of other charitable and community groups.
Actress Nina Arvesen support for charities including the St. Jude Children's Research Hospital for several years, Arvesen Has been involved in many charitable causes, including the Juvenile Diabetes Research Foundation, The Make-A-Wish Foundation .