The news follows a number of high-profile deals for Rentrak to license its ratings to TV network and station groups, and some big ad agencies such as Horizon Media, Saatchi & Saatchi, Zenith Media and Starcom MediaVest Group.
While ratings services do not need to be accredited to be used as TV ad marketplace currency — Nielsen’s local diary ratings currently are not accredited by the MRC — the stamp of approval gives a higher degree of confidence that the ratings have passed industry muster.
via Rentrak Fails MRC Audit, TV Ratings Accreditation Withheld 03/23/2015.