What are the most common types of non-immigrant US business visa?

B-1 Visas for Business Visitors

B-2 Visa for Tourists
E-1 Visas for Treaty Traders

E-2 Visa for Treaty Investors

F-1 Visas for Foreign Students
H1-B Visas for “Specialty Occupation” Employees

H-2B Visa for Temporary Workers

L Visas for Intercompany Transfers
J Exchange Visitors
O Visas for Extraordinary Ability

P visa for Athletes and Entertainers
TN (NAFTA) Visas for Mexican and Canadian Citizens