Complex sentence: Later he moved to directing commercials for the production company of Lippert-Saviano, and then for Topel & Associates, before opening his own production company, Young & Company, producing and directing commercials.
Split into simpler sentences: Later he moved to directing commercials for the production company of Lippert-Saviano, and then Topel & Associates. Finally he opened his own production company, Young & Company, producing and directing commercials.