| 37 | Repair of computer hardware | | M | | M | | M |
| 37 | Maintenance and repair of computer hardware | | M | | M | | M |
| 37 | Installation and repair of computer hardware | | M | | M | | M |
| 37 | Maintenance and repair of computers [hardware] | | V | | | | |
| 37 | Computer hardware (Installation, maintenance and repair of -) | | V | | | | |
| 37 | Installation, maintenance and repair of computer hardware | | M | M | M | | M |
| 37 | Repair and maintenance of computer and telecommunications hardware | | M | | | | M |
| 37 | Consultancy relating to the installation, maintenance and repair of computer hardware | | M | | | | M |
| 37 | Information technology consultancy relating to installation, maintenance and repair of computer hardware | | M | M | | | M |