While working at Disney, he met fellow animators Don Bluth and Gary Goldman, and began working with them on an independent short film project, Banjo the Woodpile Cat.
Pomeroy remained at the Dublin studio to work as the directing animator and producer on An American Tail and The Land Before Time, before moving back to America in 1989 to form a new US wing of the company.
While working at Disney, Pomeroy also provided animation for the films Fantasia 2000, The Tigger Movie, Atlantis: The Lost Empire and Treasure Planet.
He is a talented sculptor, and creates busts that animated film artists use to visualize a 3-D model of their character.
He is currently on the elders board at a Village Christian School in Sun Valley, California.