| A02 | Basic design & project development services |
| A03 | Engineering services |
| A10 | Project management, construction management |
| B05 | Other construction assistance (cleaning, rigging, stores, support) |
| B06 | Inspection and testing (NDT, pressure, performance, trial trip, etc) |
| B07 | Shipbuilding & offshore constructions |
| B08 | Maintenance, spare parts and supplies |
| B09 | Repairs, modifications & docking |
| B10 | Hiring of rigs, platforms and ships |
| K02 | Power cables |
| L05 | Alarm equipment |
| L08 | Monitoring equipment |
| L13 | Control & automation systems |
| M03 | Cleaning equipment |
| N06 | Anti-pollution equipment |
| P01 | Positioning & navigation equipment |