Nielsen Holdings Plc engages in the provision of global marketing data collection and analytics services. The company is headquartered in New York City, New York and currently employs 14,000 full-time employees. The company went IPO on 2010-12-29. The firm consists principally of television, radio, online and mobile audience and advertising measurement and corresponding analytics. Its business consists of two product categories: One Measurement Solutions (Measurement), and Impact Marketing Solutions/Gracenote Content Solutions (Impact/Content). The firm provides viewership and listening measurement data and analytics primarily to media publishers and marketers and their advertising agencies for linear television, streaming, digital (which includes a computer, mobile and campus television (CTV)) and listening platforms. The firm has operations in approximately 55 countries. The Company’s subsidiaries include AGB America S.A., Gracenote Argentina S.R.L., The Nielsen Company (Australia) Pty Ltd, Nielsen Television Audience Measurement Pty Ltd, NetRatings Australia Pty Limited, H W W Pty Limited and The Nielsen Company (Holdings) Pty Limited.