Businesses involved in the the following industries (as defined by the SIC Codes 2007) can use the ProQuin product as defined in the table below.
| Options |
 |
 |
 |
| 29 Manufacture of motor vehicles, trailers and semi-trailers |  | | |
| 29.1 Manufacture of motor vehicles | | | |
| 29.10 Manufacture of motor vehicles | | | |
| 29.2 Manufacture of bodies (coachwork) for motor vehicles; manufacture of trailers and semitrailers | | | |
| 29.20 Manufacture of bodies (coachwork) for motor vehicles; manufacture of trailers and semi-trailers | | | |
| 29.20/1 Manufacture of bodies (coachwork) for motor vehicles (except caravans) | | | |
| 29.20/2 Manufacture of trailers and semi-trailers | | | |
| 29.20/3 Manufacture of caravans | | | |
| 29.3 Manufacture of parts and accessories for motor vehicles | | | |
| 29.31 Manufacture of electrical and electronic equipment for motor vehicles | | | |
| 29.32 Manufacture of other parts and accessories for motor vehicles | | | |
| 30 Manufacture of other transport equipment | | | |
| 30.1 Building of ships and boats | | |  |
| 30.11 Building of ships and floating structures | | | |
| 30.12 Building of pleasure and sporting boats | | | |
| 30.2 Manufacture of railway locomotives and rolling stock | | | |
| 30.20 Manufacture of railway locomotives and rolling stock | | | |
| 30.3 Manufacture of air and spacecraft and related machinery | | | |
| 30.30 Manufacture of air and spacecraft and related machinery | | | |
| 30.4 Manufacture of military fighting vehicles | | | |
| 30.40 Manufacture of military fighting vehicles | | | |
| 30.9 Manufacture of transport equipment n.e.c. | | | |
| 30.91 Manufacture of motorcycles | | | |
| 30.92 Manufacture of bicycles and invalid carriages | | | |
| 30.99 Manufacture of other transport equipment n.e.c. | | | |
