Co. specializes in the field of in vitro diagnostics for clinical and industrial applications. Co. designs, develops, manufactures and markets systems used in: Clinical Applications (the diagnosis of infectious diseases such as hepatitis, HIV, tuberculosis and respiratory illnesses, as well as pathologies such as cardiovascular diseases and cancers, based on the analysis of biological samples such as blood, saliva or urine); and Industrial Applications (microbiological analysis of samples of finished or semi-finished products (or of the environment), chiefly in the food processing and biopharmaceutical industries), detecting microorganisms in agri-food, pharmaceutical and cosmetic products.

Publicis is holding company. Through its subsidiaries, Co. is engaged in marketing, communication and digital transformation. Co. designs a customized package of services to meet each client's particular needs through a holistic and global approach. In addition, Co. provides financial markets with information concerning the relative size of each of the different business sectors for the sole purpose of allowing sector comparisons. Co.'s principal activities comprise four main categories: Digital, Advertising, Specialized Agencies and Marketing Services (SAMS) and Media.

WPP is a holding company. Through its subsidiaries, Co. is a communications services organization providing national and multinational clients a range of communications services. Co. is organized into four operating segments: Advertising and Media Investment Management; Data Investment Management; Public Relations and Public Affairs; and Branding and Identity, Healthcare and Specialist Communications. This last reportable segment includes WPP Digital and direct, digital, promotional & relationship marketing.