5. Equinix:

Equinix is an American public corporation that provides carrier-neutral data centers and internet exchanges. It provides network-neutral data centers and interconnection services. The company offers collocation, traffic exchange and outsourced IT infrastructure solutions to enterprises, content companies, systems integrators and over 600 network service providers worldwide. Established in 1998 by Jay Adelson and Al Avery it went public in 2000.