COMvergence is the only independent and international research bureau providing analysis and benchmarking studies of the advertising and media firms owned by the global marketing services groups, leading independent agencies and management & IT consulting firms. Using quantitative measurement metrics, COMvergence provides high-quality reference data, guidance and support for MarCom professionals and spans the international marketing services groups in 30+ countries. Through our quarterly benchmarking reports and continuously updated databases, COMvergence keeps members informed of key 1) Agency/advertiser relationships, and new business activity; 2) Media Agency Buying Billings and market shares; 3) Mergers and acquisitions (holding companies vs. management & IT consulting firms); 4) Agency leadership and talent flows. Founded in 2016 by Olivier Gauthier, COMvergence is a proud partner of the American Association of Advertising Agencies (4A’s), World Federation of Advertisers (WFA) and Nielsen and Kantar Media.