Complex sentence: He is working with some of the industry's top-tier directors, actors and producers, having done over 20 national commercials as well (Levis, Coke, Pepsi, Motorola, Pringles, JcPennys, Nike, amongst others).
Split into simpler sentences: He is working with some of the industry's top-tier directors, actors and producers. He has done over 20 national commercials as well, (Levis, Coke, Pepsi, Motorola, Pringles, JcPennys, Nike, amongst others).