Robert McCullen is a technology executive and investor who serves as Chairman & CEO of LevelBlue and as Managing Partner of WillJam Ventures. They previously served as Chairman & CEO of Trustwave from 2002 to 2019, as Chairman of VikingCloud from 2020 to 2023, and as Chairman of GoSecure from 2018 to 2023. Earlier in their career, they held roles including Director of Managed Security Services at IBM / ISS / Netrex (1997–2000), Director of Strategy & Product Management at VERISIGN / Exault (2000–2002), and Sales Manager at Sun Microsystems (1989–1997). They are pursuing a degree in Computer Science and Computer Graphics at Michigan Technological University.
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