Tonya Barr Treble

Tonya Barr Treble is an experienced philanthropy professional with a diverse background in nonprofit management and donor engagement. Currently serving as a Senior Philanthropy Officer at the Peninsula Open Space Trust since October 2016, Treble has played a vital role in shaping a vibrant ecosystem in Silicon Valley. Previous positions include Director of Major Gifts at the Pacific Research Institute and Sustainability Manager at NESsT, where the focus was on developing enterprises that address critical social issues. Additional experience encompasses various roles at Global Ministries/UMCOR, where Treble led individual giving initiatives, as well as early career positions at organizations such as the Indiana Philanthropy Alliance and Hoosier Hills Food Bank. Educational credentials include a Master of Public Affairs from the O'Neill School of Public and Environmental Affairs and a Bachelor of Arts from DePauw University, complemented by specialized training in major gifts and fundraising techniques.