H-1B:Temporary work visas for workers in specialty occupations
L Visas: Intra company transfer. Need to be Executive, Manager or possess specialized knowledge. Must be coming to work for the U.S. parent, subsidiary, or affiliate of overseas company.
Extraordinary Ability (O-1): For persons of “extraordinary” ability in sciences, arts, education, business or athletics
TN: The Trade NAFTA Category (citizens of Canada and Mexico)
Athletes & Entertainers (P 1): For members of entertainment groups, individual athletes, and members of athletic teams
Religious Workers (R): Classification applies to full time religious workers