J
| Company Name | County | Tel: No. |
| J F Turkington (Engineers) Ltd. | Lancashire | 01282-414940 |
| J R G Engineering Services Ltd. | West Yorkshire | 0113-263-8731 |
| Jackson Fasteners Ltd. | Derbyshire | 01457-852091 |
| James McGowan Engineering Ltd. | Lanarkshire | 0141-641-3648 |
| James Proctor Ltd. | Lancashire | 01282-453816 |
| Jamieson-Macgregor Ltd. | Clackmannanshire | 01259-722725 |
| Jervis B Webb Co. Ltd. | Buckinghamshire | 01908-270222 |
| Jobel Engineering Ltd. | Cornwall | 01726-66480 |
| John Brownsword Conveyancing Services | West Yorkshire | 01924-423353 |
| John Morgan (Conveyors) Ltd. | West Midlands | 01902-455755 |
| John S Raven | Essex | 01702-294040 |