There are a variety of visas available to U.S. employers seeking to employ foreign nationals temporarily in the United States. Several H non-immigrant visa categories used for this purpose include visas available for professional workers, temporary workers in shortage occupations, nurses, and trainees. The H status is designed principally to help employers meet an immediate and temporary need for labor.
L-1 Intracompany Transferees
Available for employees who have been employed by a multinational company abroad that seeks to open new business operations in the United States or transfer the employee to an existing business that is related to the company abroad
L-1A for Managers/Executives
L-1B for Employees with Specialized Company Knowledge
L-1 regulations also recognize a visa may be issued for opening a "new office"