China Guangshi Sofres Media Research Co., Ltd.

China Guangshi Sofres Media Research (CSM) is a Sino-foreign cooperative enterprise jointly established by央视市场研究 (CTR) and Kantar Media Group, among others. Since its establishment on December 4, 1997, based on internationally scientific technical concepts and in-depth understanding of the domestic market, CSM conducts television ratings research, radio ratings research, sports and media research, and new media research, providing reliable and uninterrupted audience measurement and in-depth research services for the media industry in mainland China and Hong Kong.
As a provider of the 'common currency' for television and radio programs and advertising transactions, CSM operates an extensive broadcast audience survey network, covering over 52,000 sample households. Its television ratings survey network provides data that can be projected to over 1.28 billion television viewers in mainland China and 6.53 million in Hong Kong; its radio ratings survey data can be projected to over 6.2 million radio listeners in China. As of January 2021, CSM has established one national survey network in mainland China, 31 provincial-level survey networks (including 4 municipalities directly under the central government), and 100 city-level survey networks, in addition to the Hong Kong Special Administrative Region survey network. CSM measures the viewing of nearly 1,200 television channels in mainland China and Hong Kong to meet the needs of clients in different regions and at different levels for television ratings data. Meanwhile, CSM conducts radio ratings surveys in 19 key cities in China, covering 310 radio frequencies.
At present, the company has a vast broadcast audience survey network, continuously develops and optimizes core products, and has completed cross-platform upgrades for ratings data. The company insists on providing better services for mature products such as 'Weibo application research', 'real-time ratings research', and 'time-shifted ratings'; at the same time, in areas like OTT/smart TV/IPTV, it deeply expands interactive platform ratings research and officially conducts TV+IPTV same-source audience measurement; and provides six consecutive years of same-source sample full-video audience surveys for the Hong Kong Special Administrative Region, achieving comprehensive measurement from TV to Total Video. CSM, combining market demand and new industry technologies, concurrently carries out diversified businesses such as media convergence communication effect research, sports and media research, and integration of ratings and consumption data, continuing to enrich its product system and improve service quality. In 2019, CSM launched the converged media data cloud platform V+Scope, integrating multi-channel new media big data to help TV media better understand the new media field and occupy new positions in mobile communication.