You will be glad to know that L1 visa is the kind of US Visa created for individuals with specialized knowledge. This USA business visa is a non-immigrant visa which is given to overseas employees who have dedicated knowledge, and who will be moved to the US offices. The L1-B is one of the two categories of L1 Visa which allows the US employers to relocate overseas employees with L-1B specialized knowledge related to the welfares of the company.