No. 7: NEC Corp.
Snapshot: NEC provides IT services and products to business enterprises, communications services providers and to government agencies. The company -- previously known as the Nippon Electric Company -- was rebranded in 1983 as NEC.
The company's roots date back to 1899 when founders Kunihiko Iwadare and Takeshiro Maeda established Nippon Electric Limited Partnership, whose main business was maintenance of telephones and switches. In 2012 the company shipped 1.7 percent of all servers globally and is ranked as the No. 7 server maker in terms of units shipped, according to IDC.