35 Advertising; business management services; business administration; office functions; telephone answering for unavailable subscribers; business and organisation consultancy in the field of communications technology and in the energy sector; economic consultancy for others in the field of the generation of, procurement of transport for and the use of energy and water; technical and commercial management in the energy, gas, water and sewage sectors; calculation of heating costs, for others.
36 Insurance; financial affairs; monetary affairs; real-estate affairs.
38 Telecommunications; operating of telecommunications networks and telephone networks; providing access to existing communications networks, in particular the public telephone network and the Internet (Web); telecontrol services, transmission of telecontrol information for teleindication, teleswitching, teleadjustment between subscriber apparatus operating as telecontrol apparatus and monitored apparatus, installations in private houses, buildings and valuable objects; information services via communications networks; broadcasting of radio and television programmes; systems monitoring by means of data transmission; emergency call service; operation, installation and maintenance of data communication networks.
39 Transport; supply company or town works services, namely the supply of municipal areas, private houses, commerce and industry with electricity, gas, water and long-distance heating; transport and distribution of gases, liquids and solids by pipeline; packaging and storage of goods; travel arrangement; rental of motor vehicles, ships and aircraft; rental of garages and car parks.
42 Drawing up digital plans of conduits in the gas, water, sewage and telecommunications sectors; technical planning of infrastructure projects, sewerage systems, clarifying installations and power stations; technical consultancy for others in the field of the generation of, procurement of transport for and the use of energy and water; dumping of waste materials from power stations; disassembly, removal and filling of oil tanks; remediation of contaminated soil; landscape gardening; lawn care services; guards; security consultancy; creation of data-processing programs; engineering services in the field of energy technology, electrical engineering, building technology, communications technology and environmental technology, mechanical engineering and installation construction.