John Calzaretta is a seasoned leader and co-founder of Sentry Enterprises and Sleev.io, with extensive experience in business development and innovation. They previously served as President at InnerWorkings, where they managed a $140 million operation and led the acquisition of seven companies. John also held the position of Vice President of Global Markets at AT&T, overseeing a $1.3 billion operation across a nine-state region. They studied Communications at the University of Illinois at Urbana-Champaign, earning a Bachelor's Degree in 1990.
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