E visas ( E-1 and E-2): 

The E-1 treaty trader visa allows an individual to come to the U.S. for the purpose of furthering substantial trade that is international in scope. The trade must be primarily between the United States and the treaty country where the person holds citizenship.

The E-2 treaty investor visa allows an individual to come to the U.S. for the purpose of furthering a substantial investment in a U.S. enterprise made by individuals or businesses that are citizens of a treaty country.