NEW YORK — Omnicom Group has promoted longtime executive Daryl Simm to president and COO of the holding company.

In the newly created position, Simm will work directly with chairman and CEO John Wren overseeing business operations across Omnicom.

Simm has served as CEO of Omnicom Media Group since he joined the company in 1998, as which he established OMD Worldwide, PHD Worldwide and Hearts & Science. He also launched Annalect, Omnicom’s data and analytics practice, and developed the company’s first Black Leadership Network.

“Daryl is well-respected across the company and, in partnership with our executive leadership team, has helped us develop our strategy for future growth. I am very pleased to have him in this new role at Omnicom,” Wren said.

Florian Adamski, CEO of OMD Worldwide, will succeed Simm as CEO of Omnicom Media Group.

In May, Chris Foster was appointed CEO of Omnicom Public Relations Group (OPRG), taking charge of the PR industry's biggest network, housing 15 firms including FleishmanHillard, Ketchum and Porter Novelli, and employing 6,300 staff. Foster’s predecessor Karen van Bergen relinquished the role in late 2019.