Business visitors to the United States normally require a nonimmigrant B-1 business visitor visa, or a B-1/B-2 combination visa, unless they qualify for Visa Waiver Program admission with ESTA approval. The U.S. State Department notes that foreign nationals wishing to enter the United States must generally first obtain a visa for a temporary stay, and it publishes a fact sheet listing the categories of business travel allowable on a B-1 visa. Applicants should schedule their visa interview at the U.S. Embassy or Consulate in their country of residence or nationality.
Estimated cost: Varies by visa type and nationality (check official site).
Processing: Varies by nationality; apply several weeks before travel.
Visa application fees are non-refundable and non-transferable. Holders of official and diplomatic passports on official business must obtain a visa from a U.S. embassy or consulate before arrival. Check the U.S. State Department B-1 fact sheet for allowable business activities at trade events.
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