deaths
June 1, 1980
Arthur Nielsen, American businessman, founded the ACNielsen company (born 1897)
Arthur Nielsen
Arthur Charles Nielsen Sr. was an American businessman, electrical engineer and market research analyst who created and tracked the Nielsen ratings for television as founder of the A.C. Nielsen Company.
NielsenIQ
NIQ is a global marketing research firm, with worldwide headquarters in Chicago, Illinois, United States. The company has approximately 30,000 employees and operates in more than 100 countries. NIQ acquired German market research firm GfK in 2023.