Bob McCullen is a globally recognized leader, innovator and visionary in the cybersecurity industry.  A serial entrepreneur and business operator, Bob has co-founded and served in senior management roles of several successful cybersecurity companies.  In addition to his role as Founder and Managing Partner of WillJam Ventures, Bob has served as Executive Chairman of VikingCloud, a leader in PCI Security Services, and Executive Chairman of GoSecure, a rising managed detection and response provider.    

Bob is a pioneer in the managed security services industry having previously served as a senior executive at Netrex (acquired by Internet Security Systems and IBM) and as a founding partner of Exault (acquired by Verisign).  Additionally, Bob was a co-founder of Ambrion which later merged with Trustwave where he served as Chairman and CEO through its acquisition by Singtel.   

Bob was honored as CEO of the Year by the Illinois Technology Association and as a winner of the EY Entrepreneur of The Year Award for the Midwest Region in 2011. He has a degree in computer science, and he serves on the Board of Directors of the Lyric Opera of Chicago.