To immigrate to the United States based on employment, the immigrant-employees would need an employment-based immigration visa. Employment-based immigrant visas are organized in five (5) preference classes. Each class has a number of sub-classes. Most professionals and workers fall within the 2nd and 3rd preference classes.
For immigrant visas available to prospective employees possessing exceptional qualifications, see Green Card for Exceptional Persons. For immigrant visa available to executives and managers of multinational companies, see Green Card for Multinational Managers & Executives.