Edelman is MSL's #1 rival. Edelman is a Private company that was founded in New York, New York in 1952. Like MSL, Edelman also works within the Marketing Services field. Edelman has 3,000 more employees vs. MSL.
Grayling Communications is perceived as one of MSL's biggest rivals. Grayling Communications was founded in 1981, and is headquartered in London, England. Like MSL, Grayling Communications also operates in the Professional Services sector. Grayling Communications generates $412.5M less revenue vs. MSL.