22. Atos
2017 Rank: Not ranked
Top Executive: Thierry Breton, Chairman & CEO
Location: Purchase, N.Y.
Atos is an IT services provider that specializes in high-tech transaction services, unified communications, cloud computing, big data and cybersecurity. The company is looking to become more visible in North America, leveraging its close channel relationships with Cisco and Dell Technologies. Atos was on the world stage in February when it provided the IT services that ran the 2018 Winter Olympics in PyeongChang, South Korea.