William M. (Bill) Addy founded ISN in 2001. His previous roles within the company include Executive Chairman and Chief Executive Officer. Bill is an active volunteer in the North Texas Region in addition to being a member of the School of Engineering and Applied Science’s Advisory Council at Princeton University, the President’s Advisory Council at Princeton University, a lifetime member of the Young President’s Organization (YPO), and the past board president for North Texas Public Broadcasting (KERA). Bill holds an MBA from Harvard Business School and a bachelor’s degree in Chemical Engineering with Honors from Princeton University. He lives in Dallas with his wife, Lydia, and has four sons.

Lydia Addy is a long serving Dallas volunteer who has focused her energies on improving educational opportunities and community revitalization in North Texas. Lydia is Board Chair of The Dallas Foundation and an active member of several non-profit boards where she has served in fundraising, development, strategic initiatives, branding and marketing, and executive searches. She is also a 2015 Graduate Fellow of Leadership ISD. Lydia is a graduate of the University of Illinois at Urbana-Champaign and the JL Kellogg Graduate School of Management at Northwestern University in Evanston, IL.

Ben Leal has 20+ years of non-profit and government experience. He began his career in the Office of the Governor for the State of Texas, and later served as a Legislative Director for the Texas House of Representatives. Ben is a graduate of Texas Lutheran University with a BA in Political Science focusing on Public Policy and Urban Development with a minor in Economics. He completed Strategic Prospective in Nonprofit Management at Harvard Business School. Additionally, Ben is a 2012 Graduate Fellow of Leadership ISD, a 2018 Graduate of Leadership Dallas, and a member of The Dallas Assembly. Ben serves on appointed boards for the City of Dallas and Dallas ISD. He is on the Board of United to Learn and The DFW International Board of Directors, as well as assists many nonprofits in North Texas at an advisory level.

Sarah Scholl has 20+ years of professional experience in customer serving roles with an emphasis on Executive Administration. Sarah is an advocate for animal rescue and equitable health care access. Originally from Orlando, FL, Sarah has resided in the city of Dallas since 2001. She volunteers her time and philanthropic efforts in the North Texas Region, and she enjoys the vast resources that Dallas has to offer, from arts and culture to sports and recreational activities.