MSL is part of the Publicis Groupe, one of the largest communication groups in the world. MSL strategic consulting promotes the interests of its clients through bold and pioneering campaigns that engage many points of view, offering a holistic approach to building influence and delivering results. With over 3,100 employees in over 107 offices around the world, it is part of one of the largest PR groups.

Sebastian Hejnowski

CEO Leo Burnett Group

Agency Name:

MSL Group

Company established:



Sebastian Hejnowski,


Main Clients:

Procter&Gamble, Pernod Ricard, Emirates, Żywiec Zdrój


Digital & Influencer Marketing, Corporate communication, Anti-crisis communication, Communication in the financial sector, Public Affairs


Złote Spinacze, Impactor, Golden Drum Award, Magellan Awards Communications Campaign, Kreatura, European Excellence Awards, PRotony, Eastern European Consultancy of the Year.