Compagnie Immobiliere de Belgique SA (Immobel) is a Belgium-based company active in the real estate development sector. The Company operates in three lines of business in Belgium, Luxembourg and Poland, such as office properties, the residential sector and land banking. Its clients include: the state, the European Union (EU) and/or institutional investors for office complexes; private clients for residential property and land purchases, as well as private clients looking to invest in housing. The Company's main projects in Belgium include Belair, Black Pearl, Parc Seny, Gateway, Bella Vita and Chastre Rue Du Chene. Its main projects in Luxembourg include Westside Village, Green Hill and Galerie Kons. Finally its main projects in Poland include Cedet, CBD One and Okraglak.

Floridienne SA is a Belgium-based company engaged in the chemicals, gourmet food and life sciences sectors. The Chemicals division is engaged in two areas: additives for plastics used for stabilizing Polyvinyl Chloride and fireproofing plastics, as well as the recycling of nickel-cadmium, nickel-metal hydride and lithium-ion batteries. The Life Sciences division is active in the production and marketing of natural technologies and products that offer green and sustainable alternatives in agriculture, hygiene products and healthcare, among others. The Life Sciences division also provides plant proteases and integrated pest management. The Gourmet Food division is engaged in the production and marketing of party and gourmet food products such as snails, scallops, stuffed shellfish, smoked salmon, seafood salads, aperitif snacks and ethnic dishes. The Gourmet Food division also operates in the field of special needs foods, such as for people with deglutition problems, among others.

Proximus supplies integrated telecommunications services on the Belgian market. Co.'s activities are divided into four segments: Consumer Business Unit (CBU), which sells voice products and services, internet and television, on fixed and mobile networks, to residential customers; Enterprise Business Unit (EBU), which caters to professional customers; Service Delivery Engine and Wholesale, which centralizes all the network and IT services and costs, provides services to CBU and EBU and sells these services to other telecom and cable operators; and International Carrier Services, which focuses on international carrier activities.

UCB is a global biopharmaceutical company focused on severe diseases in two therapeutic areas, namely central nervous system disorders and immunology. In the area of central nervous system disorders, Co. is focused on advanced Parkinson's disease, epilepsy, restless legs syndrome and epilepsy. In the area of immunology disorders, Co. is focused on rheumatoid arthritis, axial spondyloarthritis, psoriatic arthritis, systemic lupus erythematosus, juvenile idiopathic arthritis, post-menopausal osteoporosis, systemic lupus erythematosus and immunological diseases.