To visit the United State for Business you will need to obtain a Temporary Visitors for Business Visa, unless you qualify for admission without a visa under the Visa Waiver Program.
The table below describes the different classifications of temporary business visitors. For more information on eligibility and the application process, see the links under “Temporary Visitors for Business” to the left.
Temporary Visitors for Business
Temporary business visitor to conduct activities of a commercial or professional nature. For example, consult with business associates, negotiate a contract, or attend a business conference
Temporary visitor for Business admitted under Visa Waiver Program
Temporary visitor for Business (limited to Guam)