The Billionaires Behind The Secret Tech Mecca In America’s Heartland
Jim Kavanaugh climbs into a sleek, black-leather-interior Mercedes bus that whisks him away from his company’s new headquarters in St. Louis to a squat, one-story outpost nearby. Kavanaugh is retracing the route he has traveled many times with executives from hundreds of America’s largest companies, including Citigroup, Verizon