Profitero, which employs 300 staff, is assisting brands in their sales performances and profitability across 700 retail websites across the world, Publicis said in a statement.
The deal was worth 200 million euros ($210.58 million), the company told Reuters, confirming a media report.
Profitero will remain an individual company within the Publicis group, it added.
($1 = 0.9498 euros)
(Reporting by Dina Kartit , editing by Tassilo Hummel)