4
Natural gas (fuels); Electrical energy
11
Distributors for heat, warm water and cold water; Heating installations, apparatus and installations for the production of thermal energy and for the transformation of thermal energy; Collectors (heating)
35
Advertising, business management, business administration, energy services, namely energy consultancy with regard to professional business matters; Professional business and organisation consultancy in the energy sector; Negotiation of contracts in the field of supplying electrical energy; Arranging contracts with electricity and energy suppliers; Professional business analysis of energy use; Energy efficiency consultancy from a professional business perspective, office functions for recording energy, heat, cold, water, gas and electricity data and the consumption thereof, and of additional charges for the purpose of billing and creating overviews
36
Financial consultancy in the energy sector; Trading in electrical energy; Supply of electrical power
38
Rental of telecommunication facilities; Telecommunication services; Transmission of energy data, consumption data and energy cost data by means of telecommunications devices
39
Transport and distribution of electricity; Supply/distribution of renewable and non-renewable energy
40
Generation of current, generation of electricity, heat and renewable energy
42
Technical consultancy relating to the selection of heating installations, technical equipment for the supply of electricity and telecommunications equipment; Energy consultancy with regard to technical matters