Ipsos is a global market research and consulting firm headquartered in Paris, France. The company was founded in 1975 by Didier Truchot, Chairman and CEO, and has since grown to become the third largest market research company in the world. Ipsos operates in over 90 countries and employs over 18,000 people. The company provides a range of research services including advertising research, customer satisfaction research, brand research, and public opinion research. Ipsos is publicly traded on the Euronext Paris stock exchange under the ticker symbol IPS.