[1] Throughout his career, he was involved in the production of over 50 major films, including Rosemary's Baby (1968), The Way We Were (1973), Chinatown (1974), Heaven Can Wait (1978), Wayne's World (1992) and its 1993 sequel, Primal Fear (1996), Fracture (2007), and Source Code (2011).

Hawk Koch began his career in London, working for music impresario and co-owner of The Dave Clark Five Harold Davison,[8] as a road manager for visiting American acts.

Koch has been intimately involved with the making of more than 60 major motion pictures, including Chinatown, Heaven Can Wait, Marathon Man, The Way We Were, Primal Fear, Wayne's World, Peggy Sue Got Married, and Rosemary's Baby.

Hawk has worked with Natalie Wood, Laurence Olivier, Dustin Hoffman, Jack Nicholson, Barbra Streisand, Anthony Hopkins, Whoopi Goldberg, Diane Lane, Edward Norton, and Halle Berry.

[22] As of 2020, Koch serves on the board of directors for AMC Entertainment, Cast and Crew, the Motion Picture and Television Fund, the Producers Guild of America, and the National Film Preservation Foundation.