Yes. O-1A visa holders can work for multiple companies.To do so, the additional work must be properly structured and approved. You generally need to file a new or amended O-1A petition to add new employers, using largely the same supporting materials, but with new employment evidence such as freelance agreements, consulting contracts, or engagement letters. These contracts must align with your professional profile and area of expertise.This flexibility is one reason the O-1A is especially popular with artists, entertainers, and professionals who work across multiple projects or clients.