Ken Petti, with his wife, Almeda, introduced Master Pizza in 1955.

Master Pizza

After nearly 60 years in business, this Cleveland-area pizzeria keeps up with the times through aggressive marketing and social media strategies. Not long after opening Master Pizza (masterpizza.com) in Mayfield Heights, Ohio, in 1955, founder Ken Petti was primed for impressive growth. By 1960, he took on four partners to start franchising—the first business to…