CFE is engaged in civil engineering, buildings and industrial construction, dredging works and electrical installations. Co. is also engaged in property development, environmental protection and building management. Co.'s works carried on by Co.'s civil engineering group includes the following: hydraulic engineering, harbor works, bridges, and other engineering works, tunnels, road construction, dams, storage tanks, piping and drainage and caissons sunken soft soil. Co.'s buildings and industrial construction sector is active in the following fields: administrative buildings, industrial construction, public utility buildings, redevelopment, and residential buildings.

Fagron supplies products, services to professionals and institutions in the healthcare sector in Europe, the U.S.A. and Brazil. Co.'s activities are subdivided into four divisions. Through Fagron, Co. offers products and concepts for pharmaceutical compounding. Through Arseus Dental, Co. supplies dental products and concepts to dentists and dental laboratories in Belgium, the Netherlands, France, Germany and Switzerland. Through Arseus Medical, Co. supplies medical and surgical products to specialists, elderly homes, homecare nurses and hospitals in Belgium and the Netherlands. Through Corilus, Co. supplies ICT total solutions for medical specialists in Belgium, the Netherlands and France.

Mithra Pharmaceuticals SA is a Belgium-based company active in the pharmaceutical industry. The Company is dedicated to provide products and services for the fertility, contraception and menopause of women. It has a number of patent families regarding Estetrol (E4), a natural estrogen produced by the human foetus, which enables the investigation of fertility and contraception products. Mithra is focused on the development of two late-stage E4-based products: Estelle, a 5th generation oral contraceptive, and Donesta, a hormone therapy for Vasomotor Symptoms in menopause. Mithra develops a contraceptive vaginal ring called Myring and Zoreline, a biodegradable subcutaneous implant for hormone dependant cancer.

Recticel is engaged in the production of a variety of polyurethane foams that are used in the furniture, technical, automotive, bedding and insulation industries. The Flexible Foam Business Line covers the manufacture, conversion and marketing of flexible polyurethane foam. The types of flexible foams are classified as Comfort, Technical Foams and Composite Foams. Co. is also engaged in the manufacture of foams used in mattresses and slat bases. In addition, Co. manufactures rigid polyurethane and phenolic foams for thermal insulation. Co.'s automotive activities include: manufacturing moulded seat cushions, window encapsulation and manufacturing interior trim components.

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.

Xior Student Housing NV is a Belgium-based company active in the field of residential Real Estate. The Company's offer is mainly for students and it includes several types of rooms for rent, including a student house in Leiden.