- Danish Crane Building AS
- DANISH MARINE SYSTEM A/S
- DANSK RADIO AS
- Dasic Marine Ltd
- Datema Delfzijl BV
- Davey & Company London Ltd
- De Gerlien-Van Tiem BV
- DECKMA GmbH
- Deckma Hamburg GmbH
- Deif (UK) Ltd
- DEIF A/S
- Delta Fire Ltd
- DEMP A/S
- DENO COMPRESSORS
- DESMI B.V.
- DESMI Pumping Technology A/S
- DESMI Ro-Clean A/S
- DEUTZ AG
- DITECH SCANDINAVIA AS
- DLK Ventilatoren GmbH
- Dolphin Maritime Software Ltd
- DOUBLE D MARINE EQUIPMENT BV
- Dr. E. Horn GmbH
- Drahtseilwerk GmbH
- DSB Offshore Ltd
- Duncan Propellers Ltd
- Durapipe UK(Head office)
- DURASTIC Ltd.
- Dutch Thrustleader Marine Propulsion B.V.
- Dutchi Motors B.V.
- DVC International ApS
- Dynamar B.V.
- Dynamic Marine Systems B.V.
- EagleBurgmann KE A/S
- Econosto Nederland BV
- Edaircon
- Eekels Elektrotechniek BV
- EIDE MARINE TECH AS
- Elastoforce Sweden AB
- ELEKTRONIX AS
- Ellehammers A/S
- ELNA ELEKTRO NAVIGATION UND INDUSTRIE GMBH
- Elos Fixturlaser AB
- Eltek Valere AS
- Eltorque AS
- EMCO Controls A/S
- Emerson Process Management
- EMHA Technisch Bureau BV
- ENGINE PROTECTION PARTNER EPP AS
- ENWA WATER TREATMENT AS
- EPTEC ENERGI AS
- ERC Technik GmbH
- Erhard GmbH & Co
- ERIKS Division K&S Antriebssysteme (previously K&S Antriebssysteme GmbH & Co. KG)
- ESC Engine Safety Co GmbH
- ESL GmbH
- Essve Produkter AB (FireSeal)
- ETECH PROCESS AS
- EURO BALLAST
- Euro Offshore bv
- European Test Services (ETS) B.V.
- Eutelsat S.A.
- EYE Marine Limited
- FAK-Armaturen GmbH
- Faro Marine Products
- FENDER CARE MARINE SOLUTIONS LIMITED
- Fendress - IXEL Marine
- FHF Funke + Huster Fernsig GmbH
- FIL-TEC Rixen GmbH
- FineTeK GmbH
- FINNOY GEAR & PROPELLER AS
- FIRE FIGHTING SYSTEMS AS
- FitatSea BV
- FIXTURLASER BENELUX BV
- Flebu International AS
- Flo-Code AS
- Fr. Fassmer GmbH & Co. KG
- FRANCE HELICES
- Franz Woelfer Elektromaschinenfabrik Osnabruck GmbH
- Free Technics BV (Imtech Marine)
- Frenstar Limited
- Frenzelit-Werke GmbH & Co. KG
- FREUDENBERG TECHNISCHE AUSRUESTUNG GMBH
- Friedrich Leutert GmbH & Co. KG
- Friedrichs Filtersysteme GmbH
- Froude Hofmann Limited
- Frydenbo Power AS
- Frydenbo Sabb Motor AS.
- Fuchs Fordertechnik AG
- FUGLESANGS LIMITED AS
- FUGRO SEASTAR AS
- Furuno (UK) Ltd
- FURUNO DANMARK AS Professional Maritime Electronics
- FUTURE PIPE INDUSTRIES BV
- G.J. WORTELBOER Jr. B.V.
- G.SCHWEPPER BESCHLAG GmbH & Co.
- G.THEODOR FREESE GmbH
- Gall & Seitz GmbH
- Garmin (Europe) Ltd
- GEA Bloksma B.V.