Barton has been CEO of the group, which defines itself as “a global marketing execution partner to the world’s leading brands”, since 2014.
ADM said he has overseen a significant expansion of the business, as well as a reshaping of the investor base, with Equistone Partners Europe becoming a major shareholder. In his new role, Barton will focus on the growth strategy for the group and will continue to be based in London.
Ed Colflesh will become group CEO. He has been CEO of the Americas and has overseen the growth of the region to become the largest part of the ADM business. He has worked in senior roles in the marketing and advertising services sector for over 15 years.
Based in New York, ADM said he will lead the business globally and continue to focus on executing its growth strategy, delivering its sustainability and technology strategies, and optimising its global operations.
The role of CEO, Americas will be filled by Noah Lapine. He joined the business earlier this year when ADM Group acquired consumer engagement agency Lapine, where he was CEO.
The promotions at the group, which has 46 offices in 33 countries, were all effective as of Monday (9 January).
Barton said: “I am extremely proud of everything ADM has achieved in the last eight years. The business has transformed during this time, experiencing incredible growth and broadening our global presence.
“I am thrilled that Ed will be taking over the reigns as global CEO. Ed has shown exceptional talent and drive, continuing to grow ADM as an industry leader in the Americas. I know that he will bring this enthusiasm and ambition to the role of global CEO.
“I am also delighted that Noah Lapine will become CEO, Americas. Noah is an impressive leader and I have every confidence that he will be a great successor to Ed in this critical region.”
Colflesh added: “I am incredibly excited to be taking on the role of group CEO. Our client-centric approach and trusted expertise along with our passion for innovation and sustainable solutions is what makes ADM an industry leader and an amazing place to work. I am thrilled to join Justin as we continue to focus on exceptional client delivery and further successes.”