Global Switch (Popularity: )
http://www.globalswitch.com/ Global Switch provides optimum, carrier neutral, data centre space solutions, in purpose-built locations worldwide.
InterXion (Popularity: )
http://www.interxion.com/ Interxion provides carrier-neutral colocation space and managed services and is present with 20 data centers across Europe.
LCL Telehousing NV (Popularity: )
http://www.lcl.be/ Colocation services in Belgium: facility details, picture gallery, news section, information about the company and links.