B1 Visa (Company Visa for US): This visa is given the business and anticipated ason trip to the USA. But such visas mostly combine with the B1/B2 Term for 10 years in U.S. Logo entry. The visa in question is located: “Multiple-Entry” and is limited to only 6 months stay in U.S.. The administrative bodies can decide if you would enter business and work for you give permission for only 30 days or 3 months stay in U.S.. For this type of visa you need one of these Form: DS-156, and DS-157. (this applies only to persons aged 16 to 45 years). Reasons for the U.S. Embassy appointment time is tight you prefer Pop veni as first contact with the Embassy in your country.