CIMM DEFINITION: A coalition of media companies funded by 14 leading Television content providers, Media Agencies and Advertisers to promote innovation in audience measurement for Television and cross-platform media. CIMM works to explore and identify new methodologies and approaches to audience measurement through a series of pilot studies with independent measurement companies initially focusing on two key areas: 1. TV measurement through set-top-box data, 2. Cross-platform media measurement. (Source: