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.

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.

Smartphoto Group is a diversified photo and multimedia group. It has two core activities that are structured into two separate divisions, the Retail Group and the Imaging Group. The Retail Group focuses on consumer electronics and on multimedia products on several local markets. Imaging Group provides goods and services that are directly concerned with both analogue and digital photography in the broad sense. These are mainly products and services concerned with the production of photo prints, which implies a specific production process for 'photofinishing'. Several entities in the Imaging Group deal in goods required for taking photos and printing them.