Stagwell Media LLC of The Stagwell Group acquired certain custom research assets of Nielsen Holdings plc (NYSE:NLSN) on January 23, 2017. The assets include, Harris brand and the Harris Poll. As part of the transition, Harris will relaunch as Harris Insights & Analytics. The Harris Poll brand remains unchanged. Stagwell Media LLC of The Stagwell Group completed the acquisition of certain custom research assets of Nielsen Holdings plc (NYSE:NLSN) on January 23, 2017.