In 2021, public relations analyst firm The Holmes Report ranked MSLGROUP as the seventh largest PR agency in the world, by revenue.

[4] In October 2010, MSLGROUP acquired 20:20, an Indian public relations firm specializing in technology and social media.

[6] In December, Publicis Groupe announced a majority stake in Brazilian PR agency Andreoli MS&L to align under MSLGROUP.

[13] In August 2013, Brazilian digital and social media marketing agency Espalhe joined MSLGROUP when Publicis Groupe acquired a majority stake in it.

[25] In June, Philippines based communications agency Arc started operating under the MSLGROUP brand through a strategic partnership with Publicis One.

[29] In November 2017, the agency opened a new office in Prague by integrating Publicis' PR operations in the Czech Republic under the MSL brand.

[32] Qorvis MSLGroup, amid the execution of political protesters and opponents, has been working with Saudi Arabia for more than a decade to whitewash its record on human rights.