Lech joined Ipsos as co-president in 1982 alongside Didier Truchot, the company’s CEO and founder. He had given up his operational activities last July due to serious health issues.

“Jean Marc and I have been close friends for over 40 years and we have been partners in leading Ipsos for the past 32 years,” said Truchot. “His passing is an immense loss to his family, to me, to Ipsos and to the entire industry in which he played a major role and was a source of inspiration.”