Building a Strong and Vibrant Silicon Valley Community
Through Business and Philanthropic Leadership


The Sobrato tradition of civic involvement began with Ann Sobrato (1915-2000) who exemplified the ideals of hard work and public service, and cultivated these same values in her son, John A. Sobrato.


For more than 50 years, John A. and his wife Susan have shared their business success with the Valley, raising their three children—John Michael Sobrato, Lisa Sobrato Sonsini and Sheri Sobrato—to engage deeply in community concerns. This multi-generational legacy of philanthropy was formalized by Lisa in 1996 with the establishment of the Sobrato Family Foundation (SFF), a private family foundation committed to sustaining the philanthropic legacy of the Sobrato family. (For descriptions of iconic Sobrato projects and key family and philanthropic milestones since the early 1900s visit the Sobrato Historical Timeline.)


In 2011, the family adopted a more holistic view of its cumulative impact under the title Sobrato Philanthropies which encompass the family foundation and its support organization, the family’s individual giving, and corporate gifts made by the Sobrato Development Companies.


In April 2012, John A. and Sue Sobrato, along with their son John M. Sobrato, joined the Giving Pledge initiative started by Warren Buffett and Bill and Melinda Gates. They are the first multi-generational signatories of the agreement. “Each of us has provided that 100% of our wealth will be given away during our lifetimes, or left to the Sobrato Family Foundation. We hope that this legacy of giving would encourage others to commit their financial resources to worthy nonprofit institutions.”