(US) Nielsen Holdings Plc engages in the provision of global marketing data collection and analytics services. It operates through the Buy and Watch segments. The Buy segments offers consumer packaged goods to manufacturers and retailers. The Watch segment delivers services to media and advertising clients. The company was founded by Arthur C. Nielsen, Sr. in 1923 and is headquartered in New York, NY.
(US) Groupon, Inc. operates as a global scaled two-sided marketplace that connects consumers to merchants. The firm provides marketing services by selling vouchers through online local marketplaces. It operates through North America and International segment. The company was founded by Andrew D. Mason, Eric Paul Lefkofsky, and Bradley A. Keywell on January 15, 2008 and is headquartered in Chicago, IL.