MDC Partners, a privately owned company headquartered in the US, is an advertising and marketing holding company. Founded in 1986, the company operates with an estimated 5,690 employees. It is structured as a partnership model, acquiring a majority stake in its partner agencies while leaving a percentage of ownership with the founder. The company maintains more than 50 partner firms worldwide. In August 2021, following its merger with The Stagwell Group, Stagwell formed Stagwell Media Network, a group of multichannel agencies.
