Visa sponsorship is a process where an employer helps a foreign worker obtain a work visa to legally work in a different country. The employer typically files a petition with the government, demonstrating that the worker has specific skills that are needed and that there are no qualified local candidates for the job. Once the petition is approved, the foreign worker can apply for the visa at a consulate or embassy. If granted, the worker can then enter the country and start their employment. This process is essential for companies looking to hire talent from abroad while ensuring compliance with immigration laws.