GfK AG is a market research company that provides data and insights to help businesses make informed decisions. The company was founded in 1934 and is based in Nuremberg, Germany. GfK has a global presence, with offices in over 100 countries. The company's services include consumer research, media research, and market analysis. GfK's clients include some of the world's largest companies, as well as small and medium-sized businesses. The company is committed to providing accurate and reliable data, and it uses a variety of methods to collect and analyze information, including surveys, focus groups, and online tracking. GfK is also involved in social research, and it works with governments and non-profit organizations to gather data on social issues.