Nielsen is a world-renowned market research firm founded in 1923 by Arthur Charles, one of the founders of the modern market research industry. The company was founded in 1923 by Arthur Charles Nielsen, one of the founders of the modern market research industry. Nielsen was founded in 1923 by Arthur Charles Nielsen, one of the founders of the modern market research industry, and is headquartered in New York, USA. Nielsen's primary clients are retailers and manufacturers of fast-moving consumer goods. For the global market, the firm also serves the automotive, financial, telecommunications and other consumer-focused industries.