The L1 Visa is a non-immigrant visa that allows companies to transfer employees from an overseas office to a U.S. office. It is primarily designed for managers, executives, and specialized knowledge employees. This visa helps multinational companies maintain a global workforce and facilitate business operations in the United States. There are two main types of L1 Visas: the L1A Visa for managers and executives, and the L1B Visa for employees with specialized knowledge. The L1A Visa is valid for up to seven years, while the L1B Visa is valid for up to five years.