Nielsen Holdings plc
Nielsen · New York, New York
The legacy U.S. TV measurement giant. Originator of the monthly Gauge streaming-share report and the Nielsen ONE cross-platform currency. Taken private in October 2022 for ~$16B by an Elliott- and Brookfield-led consortium; led by CEO Karthik Rao since September 2023.
Nielsen is the legacy spine of U.S. TV measurement — the company that invented the national television ratings service in 1950 and whose name became the metonym for audience measurement itself. Founded in 1923 by Arthur C. Nielsen Sr. as an industrial-survey shop, it pivoted to consumer and media measurement during the Depression and has held the franchise on national TV currency ever since.
The 2022 take-private reset the company’s structure but not its centrality. An Elliott Investment Management and Brookfield consortium closed the $16 billion all-cash acquisition on October 11, 2022, ending a two-decade public-company run. Karthik Rao — a 23-year Nielsen veteran who had been running the Audience Measurement business — succeeded David Kenny as CEO in September 2023, with Kenny moving to Executive Chairman.
The editorial reason Nielsen sits at the center of our coverage is the measurement-currency debate. Nielsen ONE is the company’s cross-platform answer to the joint-industry-committee alternatives backed by VideoAmp, iSpot.tv, Comscore, and others under the OpenAP umbrella. The January 2025 MRC accreditation of Nielsen’s Big Data + Panel national TV measurement — the first such accreditation for a combined panel + big-data methodology — was the milestone Nielsen used to reassert primacy heading into the 2025 upfront. The Gauge, Nielsen’s monthly streaming and TV share report, remains the most-cited single number in trade-press commentary on streaming share, even as independent analysts continue to challenge the methodology.