Stagwell Inc., formerly The Stagwell Group, is a global marketing and communications group founded in 2015 by Mark Penn. In 2020, The Stagwell Group announced plans to merge with its affiliate MDC Partners. The merger was completed in August 2021. Known partners include 72 and Sunny, Anomaly, Doner, Forsman & Bodenfors, Code and Theory, YML, Instrument, Locaria, Assembly, ForwardPMX, Gale, Allison+Partners, SKDK, HUNTER, Harris Poll, and NRG. Wikipedia