
GumGum Appoints Marcus Startzel as CEO to Drive AI-Led Ad Innovation
In a significant leadership move aimed at redefining digital advertising, GumGum, a leader in contextual-first technology, has appointed Marcus Startzel as its new Chief Executive Officer. With a track record of strategic success at Millennial Media, AppNexus, Amazon, and AOL, Startzel brings more than two decades of ad tech leadership to help GumGum elevate its unique positioning around AI, context, and consumer mindset.