Wilsonart® 

Wilsonart™ brand laminates and Gibraltar™ solid surface.

Formica® 

Formica™ brand laminates and Formica™ solid surface.

Pionite® 

Pionite™ brand laminates.

Nevamar® 

Nevamar™ brand laminates.

Staron® 

Staron™ brand solid surface.

Corian® 

Corian™ brand solid surface.

Wikipedia

http://en.wikipedia.org/wiki/Countertop