Courtesy of Centro

    The software firm is based in Chicago, Illinois and focuses on employee development. “Centro is for dreamers—the company’s lofty business mission is to improve the lives of those in the ad industry,” according to Great Place to Work. Employees receive 10 Ferris Bueller Days in which they can play hooky without explanation. There’s retirement advice, free yoga classes offered and more. Read the Great Place to Work review.

    Company Info

    IndustryAdvertising & Marketing
    HQ locationChicago, Illinois
    Year founded2,001
    Type of organizationPrivate
    Revenue (latest fiscal year)$229 million
    Web addresswww.centro.net
    Global employee headcount514
    Best Companies rank25 Best Medium Companies to Work for (2014), #8
    % of millennials in the workforce76%