- GRUPO GENERAL CABLE SISTEMAS, S.L.U
- GSR Ventiltechnik GmbH & Co. KG
- GUASCOR SA
- Gudbrandsdalens Uldvarefabrik
- Guidance Navigation Ltd
- H+H UMWELT UND INDUSTRIETECHNIK GMBH
- H.A. Springer Marine + Industrie Service GmbH
- H.C.MATCHETT LTD, SHIPCHANDLERS, LIVERPOOL, UK
- H.O. Bostrom Co., Inc.
- Haag + Zeissler Maschinenelemente GmbH
- Haagh Protection BV
- Haakon Ellingsen AS
- HAGGLUNDS DRIVES GmbH
- Hamilton Jet (U.K.) Ltd.
- Hammelmann GmbH
- HANS BUCH A/S
- HANS LUTZ MASCHINENFABRIK GMBH & Co. KG
- HANSA-FLEX Hydraulik GmbH
- Hansen Protection AS
- HANSENAUTIC GmbH
- Hansson PtroTech AB
- Hanyuan TSC GmbH
- Harbormaster Marine Inc
- Harding Safety AS
- HARRIS CAPROCK
- Harris Pye UK Ltd
- Hatenboer-Water b.v,
- Hayata, Ltd.
- HEAT NORD GMBH
- Heatmaster bv
- Heinen & Hopman
- Heinen & Hopman Engineering B.V.
- HEINZMANN GmbH & Co. KG
- HELLBERGS INTERNATIONAL AB
- Herborner Pumpenfabrik
- Hermont Marine Inc. & Hermont Tech
- HERNIS Scan Systems
- Higginson Equipment Inc.
- Hilbig GmbH
- Hilco Industrial Limited
- HK Hydraulik-Kontor GmbH
- HMB Lintec marine GmbH
- HME BV
- Hochiki Europe (UK) Ltd
- Holland Cargo Pumps
- Holland Marine Lifts B.V.
- HOLLAND MARINE SERVICES AMSTERDAM BV
- Holmatro
- Hoover Container Solutions
- Hoppe Bordmesstechnik GmbH
- Hoppe Marine GmbH
- Hose & Reel Products BV
- Hotstart
- HTI-GESAB Hoch-Temperatur Industrieanlagen GmbH
- Huisman Special Lifting Equipment BV
- HUNDESTED PROPELLER A/S
- Hunger Werkzeug und Maschinenfabrik GmbH, Ludwig
- Huntingdon Fusion Techniques Limited
- Hutton & Co. (Ships Chandlers) Ltd.
- HYDAC FILTERTECHNIK GmbH
- HYDEX FLUID POWER
- Hyphose Ltd
- Hypteck AS
- I.C. Brindle & Co. Ltd
- I.M.S.E.
- IBAK Helmut Hunger GmbH & Co. KG
- Ibercisa Deck Machinery SA
- IBMO
- Icom (UK) Ltd
- ICS ELECTRONICS
- Imes GmbH
- IMO AB
- IMP
- IMS, Inc
- IMT Headquarters
- IN Innovative Navigation GmbH vertreten durch ELNA GmbH
- Index Marine Ltd
- Industrias Ferri SA
- INDUSTRIMARIN AS
- Infrafone AB
- INGETEAM POWER TECHNOLOGY, S.A. MARINE
- Instruments Controls Services
- INTEC Engineering GmbH
- INTERLINKS MARINE SERVICES Ltd
- International Paint Ltd
- INTERSCHALT GMBH
- Intl Safety Products Ltd
- IQ Oil Filtration
- IronPump A/S
- ISIC A/S
- Isonell, S.L.
- ITW Philadelphia Resins Corp
- IXSEA B.V.
- Ixsea Limited
- J A Harrison & Co (Manchester) Ltd
- J.P.SAUER & SOHN MASCHINENBAU GMBH J P
- Jahnel-Kestermann Get Bochum
- James Walker Deutschland GmbH
- Jan De Nul n.v.
- Jansen Maritim GmbH & Co. KG