Ackermans & Van Haaren is an investment company. Co. operates in five sectors: Marine Engineering & Infrastructure, which includes DEME NV, a dredging and marine company; Private Banking, which includes BDM NV - Continentale Verzekeringen NV (ASCO NV), which focuses on marine and industrial insurance via brokers; Real Estate, Leisure & Senior Care, which includes Extensa Group NV, a real estate developer; Energy & Resources, which includes Telemond Group, a supplier to the crane and automotive industry; and Development Capital, which is engaged in ICT and engineering, retail and distribution, real estate development, and media and printing.

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.

Groupe Bruxelles Lambert is a holding company. Through its subsidiaries, Co. operates through the following segments: Imerys, which consists of the Imerys group that operates in four business lines of energy solutions and specialties, filtration and performance additives, ceramic materials, and high resistance minerals; and Financial Pillar, which includes, on the one hand, under investment activities, the companies Sienna Capital, Ergon Capital Partners (ECP), ECP II, ECP III, PAI Europe III, Sagard, Sagard II and Sagard III, Kartesia and Merieux Participations I and II and, on the other hand, under consolidated operating activities, the operating subsidiaries of ECP III.

IBA- Ion Beam Applications develops and markets technologies and pharmaceutical products for the healthcare sector, with a focus on cancer diagnosis and therapy. Co. is also engaged in the sterilization and ionization market. Co. operates in two primary business segments: Equipment and Pharmaceuticals. Co.'s Equipment segment encompasses development, fabrication, and services associated with medical and industrial particle accelerators, proton therapy systems, and a range of dosimetry products, while Co.'s Pharmaceuticals segment encompasses the production and distribution of radiopharmaceutical agents as well as its bioassay operations.

SOFINA is an investment company whose portfolio consists of shareholdings in various companies. Co. manages a portfolio of long-term and short-term investments. Its portfolio comprises investments in companies which are active in sectors such as: Energy and Services (GDF Suez, Suez Environnement, bioMerieux and Exmar); Retail (Colruyt, Delhaize); Consumer goods (Danone, Rapala, B & W Group, and Chapoutier); Satellite operators (SES); Finance Companies (Eurazeo, Caledonia, Luxempart, RAB Capital); Industry (Petit Forestier, Landis + Gyr, Carbone Lorraine and Deceuninck) and Alternative assets (Private equity, Hedge funds).

Van de Velde creates, produces and sells luxury women's lingerie under its own brand names. Co.'s brands are Marie Jo – 'Haute Lingerie' which provides timeless underwear fashion for the woman in all her forms; Marie Jo L'Aventure – 'Lingerie Pure' which provides Graphic luxury lingerie for the young-at-heart woman; and PrimaDonna – 'Exigez l'excellence' which provides luxury lingerie that combines a fit with fashion. Co. operates in a single reporting business segment, which is the production and sale of luxury lingerie. Co. reports its opeStefaan Vandammerations based on the geographical location of customers divided into euro zone and non euro zone.