2. Accenture

2016 Rank: 2

Top Executive: Pierre Nanterme, Chairman & CEO

Location: Chicago

www.accenture.com

Accenture provides services expertise to 98 of the world's 100 largest companies in over 40 industries. Its $33-billion services business has five parts including strategy to provide customers with business insight, consulting, digital business transformation, technology services and innovation, and business process and infrastructure services operations. Accenture has made over 10 acquisitions this year alone.