| Aqua Marine Ltd. | Surrey |
| www.aquamarineuk.com | |
| A.S.A.P. Supplies | Suffolk |
| www.asap-supplies.com | |
| Beta Marine Ltd. | Gloucestershire |
| www.betamarine.co.uk | |
| Dolphin Engines | Cornwall |
| www.dolphinengines.co.uk | |
| Golden Arrow Marine | Hampshire |
| www.goldenarrow.co.uk | |
| Lancing Marine | Sussex |
| www.lancingmarine.com | |
| Leisure Marine Preparations | Hampshire |
| www.leisuremarinepreparations.co.uk | |
| Lister Petter | Gloucestershire |
| www.lister-petter.co.uk | |
| L & J Marine Ltd. | Hampshire |
| www.landjmarine.co.uk | |
| LLYN Marine Services. | Gwynedd |
| www.llynmarine.co.uk | |
| Marine Diesel | Sweden |
| www.marinediesel.nu | |
| Marine Maintenance Ltd. | Essex |
| www.marinemaintenance.co.uk | |
| Motortech Marine Engineering Limited | Hampshire |
| www.crestmarine.com | |
| Myco Engineering Services Limited | Lancashire |
| http://mysite.freeserve.com/Gardnerengine | |
| Old Canal Smithy Ltd. | West Yorkshire |
| www.lobbmill.co.uk | |
| Sillette Sonic Ltd. | Surrey |
| www.sillette.co.uk | |
| Sleeman & Hawken Ltd | Devon |
| www.sleeman-hawken.demon.co.uk | |
| Thornycroft Engines | Lancashire |
| www.thornycroftengines.co.uk | |
| West Point Marine Services | Hampshire |
| www.westpointmarineservices.co.uk | |
| William G. Search | Leeds |
| www.wgsearch.co.uk | |
| Winchester Marine and Industrial Ltd | Hampshire |
| www.winchestermarine.co.uk | |
| Yanmar Marine | Netherlands |
| www.yanmarmarine.com | |