| 1 | Planning, architectural, design and engineering services, design |
| 2 | Structure realization |
| 3 | Construction trades and technologies |
| 4 | Building materials and products |
| 5 | Insulating materials, products and systems |
| 6 | Building elements and constructions |
| 7 | Building software and hardware |
| 8 | Building laws and regulations, technical standardisation, testing, metrology, certification in construction |
| 9 | Building machines |
| 10 | Information, consultancy, financial services, professional literature, education, school system, science, research |
| 11 | Business and investement activities |
| 12 | Estate agencies |
| 13 | Town infrastructure |
| 14 | Generation of water, electric power and steam |
| 15 | Traffic systems, car parks and petrol station |
| 16 | Town and garden |
| 17 | Ancillary city equipment |
| 18 | Equimpment for maintaining town cleaness |
| 19 | Leisure, sports and educations facilities |
| 20 | Heating technology |
| 21 | Ventilation, conditioning and refrigeration technology |
| 22 | Sanitary engineering |
| 23 | Fittings |
| 24 | Pumps |
| 25 | Technology of measuring, regulation and watersheds in buildings |
| 26 | Electric power sources, wiring technology and materials, lighting technology |
| 27 | Signalling, security and information devices |
| 28 | Building equipment - others |
| 29 | Interior |