Ipsos was founded in 1975 by Didier Truchor, who to this day remains CEO and Chairman. Originally the company provided services in France to advertising and media companies, before moving into public opinion research in the 1980’s. The increased profitability provided by the latter services allowed the company to expand into Europe in the 1990’s, mainly through acquisitions. From the late 1990’s their expansion became global, funded in part by listing on the Paris stock exchange in 1999. Even following its global expansion, Ipsos’ operations remain strongest in the markets centered on Europe. Given that Ipsos is the largest market research firm not to be headquartered in an English-speaking country this geographic distribution is perhaps not surprising.
In 2019, Ipsos' revenue reached two billion, an increase of nearly 15 percent compared to the previous year. Of its audience segments, consumers' is the largest, which contributed nearly half of the company's revenue in 2019. This is followed by the clients and employees segment, which contributed nearly 25 percent.