LONDON — Stephen Garrett, chairman and co-founder of Shine Group-owned production company Kudos and executive chairman of Shine Pictures, is to leave later this year.

Garrett became chairman of Kudos in 2011, nearly 20 years after he co-founded the company. With Kudos CEO Jane Featherstone, he was responsible for building one of the U.K.’s most successful independent production companies. Kudos has produced many hit shows, including “Life on Mars,” “Hustle” and “Spooks,” which is known as “MI-5” in the U.S.

Productions under Garrett’s stewardship as executive chairman, Shine Pictures, have included “Eastern Promises,” “Salmon Fishing in the Yemen” and “Miss Pettigrew Lives For a Day.” Recently announced projects include crime thriller “Blowback,” from author Gregory Burke, and the adaptation of bestseller “The Farm” by Tom Rob Smith, in association with BBC Films.

These and future projects will be led solely at Shine Pictures by head of film, Ollie Madden, who has worked closely with Garrett since joining the company three years ago.

Shine Pictures and Kudos are currently co-producing the feature “Spooks: The Greater Good,” staring Peter Firth and Kit Harington. Garrett continues as producer on the upcoming project, alongside Madden and Featherstone. The film is due for release in 2015.

Garrett said: “I’m leaving behind, in Kudos and Shine Pictures, two vibrant creative businesses that have never been in better shape. It’s been an inspiring ride with Jane and the exceptional team at Kudos, and more recently with Ollie at Shine Pictures. I will miss their passionate intelligence, so too that of all at the wider Shine Group — which has been like a family you marry into only to discover that, wherever you turn on the planet, you’ve acquired some unexpectedly stimulating and entertaining new relatives.

“As for my own plans, I’m excited by the blurring of boundaries and the fusion of forms. It’s not really about film or TV or even theater anymore. It’s just about telling great stories, stories that electrify audiences that unfold on screens which might be the size of a stamp or a six-story building. Addictive hours that are binged in a weekend or drip-fed in tantalizing nuggets over months. Scripted content is what I love. It’s endlessly reinventing itself. This feels like a great time to reinvent myself in the scripted space.”

Shine Group CEO, Alex Mahon, said: “Stephen is an exceptional producer, a passionate intellectual and thoughtful collaborator. He leaves a great base to build on in our film team, he has been an enduring influence on our scripted business and we wish him the best for the future. After 20 years as part of the wider group we will miss him.”