- Adan Limited
- ADEC Marine
- Advance Electronics Ltd
- Advanced Component Technology
- Afriso Eurogauge Ltd
- Albany Engineering Co Ltd
- AMI EXCHANGERS Ltd.
- AMI-GFV Marine Ltd
- Apollo Fire Detectors Limited
- AST GROUP
- ATB Laurence Scott Ltd
- Atlantas Marine Ltd
- Atlantis Marine Power Ltd
- B.Hepworth & Co Ltd
- Bailey & Mackey Ltd
- Bainbridge Marine
- BCB International Ltd
- Beldam Crossley
- Belzona Polymerics Limited
- Bibby Transmissions Ltd
- Bloctube Marine Services Ltd
- Bold Nu-Tec Insulation Product
- Bolton Gate Co Ltd
- Brauer Ltd
- Bridon Marine Systems & Servic
- Bristol Uniforms Ltd
- Britannia Marine Services
- Brooksbank Valves Limited
- BRUSH Turbogenerators
- CA Clase (UK) Ltd
- CAC Industrial Products Ltd
- Cactus 020 Ltd
- Calder Ltd (UK)
- Caley Ocean Systems Ltd
- Campbell Scientific Ltd.
- Capital Equipment Supply Co Ltd
- Carlson Filtration Ltd
- CARPENTER Ltd.
- Castrol Marine Ltd
- Caterform Ltd
- CATHELCO GROUP
- CENTA Transmissions Ltd.
- Chase Protective Coatings Ltd,
- Christie & Grey Ltd
- CLA-VAL UK Limited
- Class Instrumentation Ltd
- Clements Engineering (St Neots) Ltd
- CLYDEUNION Pumps
- COATES OFFSHORE
- Coldharbour Marine Ltd
- Coltraco Ltd
- Compass Marine Services
- COMPRESSED AIR CENTRE
- Cooper Roller Bearings Co Ltd
- Cosalt Head Office
- Crestchic Loadbanks
- Crewsaver Marine Equipment
- Cygnus Instruments Ltd
- Dasic Marine Ltd
- Davey & Company London Ltd
- Deif (UK) Ltd
- Delta Fire Ltd
- Dolphin Maritime Software Ltd
- DSB Offshore Ltd
- Duncan Propellers Ltd
- Durapipe UK(Head office)
- DURASTIC Ltd.
- EYE Marine Limited
- FENDER CARE MARINE SOLUTIONS LIMITED
- Frenstar Limited
- Froude Hofmann Limited
- Furuno (UK) Ltd
- Garmin (Europe) Ltd
- Gecko Headgear Ltd.
- GI Group Ltd
- Gilbert Gilkes & Gordon Ltd
- GMC Instrumentation Ltd
- Guidance Navigation Ltd
- H.C.MATCHETT LTD, SHIPCHANDLERS, LIVERPOOL, UK
- Hamilton Jet (U.K.) Ltd.
- HARRIS CAPROCK
- Harris Pye UK Ltd
- Hilco Industrial Limited
- Hochiki Europe (UK) Ltd
- Huntingdon Fusion Techniques Limited
- Hutton & Co. (Ships Chandlers) Ltd.
- Hyphose Ltd
- I.C. Brindle & Co. Ltd
- Icom (UK) Ltd
- ICS ELECTRONICS
- IMP
- Index Marine Ltd
- INTERLINKS MARINE SERVICES Ltd
- International Paint Ltd
- Intl Safety Products Ltd
- Ixsea Limited
- J A Harrison & Co (Manchester) Ltd
- Kawasaki Precision Machinery UK Ltd
- KELVIN HUGHES
- Knowsley Instrument Serv Ltd