Denton will have an undisclosed amount of equity in the company and will be one of three partners.
Daniel Todd, the managing director of Therapy Films, said: "I pursued Mark when he was at Godman, and have always admired his work and wanted to work with him. I hope his career continues to flourish at Therapy."
Denton's recent directorial credits have included the new COI Communications tax credit work by M&C Saatchi and a Publicis spot for Renault Clio. Last year, he directed a campaign for Clarks Shoes through St Luke's using the "new shoes?" strapline, as well as a Wrigley's Orbit commercial for Abbott Mead Vickers BBDO.
Denton began his career as a creative, meeting Chris Palmer, his partner and the future founder of Gorgeous Enterprises, at Bartle Bogle Hegarty. In 1986 they moved to Lowe Howard-Spink.
In 1988 Denton and Palmer became two of the founders of Simons Palmer Denton Clemmow & Johnson, before leaving under acrimonious circumstances in February 1994.
The two then joined Redwing Films, initially working as a duo under the alias Bert Sprote.
Denton joined Godman in 1997 and directed commercials for clients including Royal Mail and Thomas Cook before leaving to join Blink in January 1999.