39
Marketing, distribution and retailing and wholesaling of electricity and gas; Rental of apparatus for conducting, switching and accumulating electricity; Rental of apparatus for conducting and accumulating gas; rental of gas distribution apparatus; Distribution and storage of gas and electricity; Transport via gas pipes; Transport and storage of gas and electricity; Distribution, supply and transmission of energy
40
Energy production and transformation; Recycling of waste and rubbish; Treatment and processing of waste by mechanical and chemical means and its classification; Mechanical and chemical treatment and processing of all kinds of fluids; Water treatment
42
Project engineering services; Technical research and consultancy in relation to engineering and architecture; Scientific and technological services and design and research services; Industrial analysis and research services; Water analysis; Chemical analysis; Architecture; Calibration [measuring]; Construction drafting (surveying); Consultancy in the field of energy-saving; Architectural consultation; Monitoring of computer systems by remote access; Quality-control services; Design of interior decor; Computer software design; Industrial design; Material testing; Conducting technical project studies; Underwater exploration; Engineering services; Installation of software; Physics [research]; Research in the field of environmental protection; Mechanical research; Geological research; Chemical research; Technical research; Land surveying; Oil-field surveys; Geological surveys; Surveying; Urban planning; Geological prospecting; Oil prospecting; Provision of scientific information, advice and consultancy in relation to carbon offsetting; Laboratory (Scientific -) services