can a us company sponsor a immigrant australia
457 Temporary Business Sponsorship Visas. Most employers will apply for approval as a Standard Business Sponsor. The approval generally lasts for 3 years and there is a limit to the number of employees who can be sponsored over this time.cacia's Expertise. 1  Understanding the requirements for approval as a business sponsor. 2  Sponsorship obligations are increasingly policed by the Department of Immigration. 3  In obtaining 457 visas, speed is of the essence to make sure that employees are able to work in Australia as soon as possible.