coorperation doesn't matter what status you have. Your visa is only relevant whether you are allowed to work in the US or not. No non-immigrant visa allows you

coorperation doesn't matter what status you have. Your visa is only relevant whether you are allowed to work in the US or not. No non-immigrant visa allows you to work, the B-visa technically only allows you to have meetings etc. ESTA is a an agreement with various countries for its citizens to enter the states for 3 months without a visa. Many people I know use ESTA to work in a grey-zone