- Ampelmann
- 2612 HL, Delft
- Bender GmbH & Co. KG
- 35305 Grünberg
- Bernhard Schulte Offshore GmbH
- 20459 Hamburg
- Buss Group GmbH & Co. KG
- 20457 Hamburg
- Clir Renewables
- Vancouver, BC V5Y 3V6
- CWind Ltd HQ
- Chelmsford, CM2 5PD
- Damen Shipyards Gorinchem
- Gorinchem
- Deep BV
- 1021 Amsterdam, KN
- DeepOcean
- 0255 Oslo
- DEME Offshore
- 2070 Zwijndrecht
- EDF EN Deutschland GmbH
- 25421 Pinneberg
- ELA Container Offshore GmbH
- 49733 Haren (Ems)
- EMS Maritime Offshore GmbH (EMO)
- 26723 Emden
- Engineering Technology Applications Ltd.
- Hants, SO51 8BY
- ESVAGT
- 6700 Esbjerg
- Fahrenholz GmbH
- 28217 Bremen
- First Subsea Ltd
- Lancaster, Lancashire, LA1 5QP
- FORCE Technology
- 2605 Brøndby
- Fugro
- Leidschendam, 2264 SG
- Global Marine Group
- Chelmsford CM2 5PD
- Heerema Marine Contractors (HMC)
- 2300 PH Leiden
- Heli Service International GmbH
- 26721 Emden
- Helix Energy
- Dyce, Aberdeen AB21 0BG
- Hughes Subsea Services Ltd
- Bootle L20 4TY
- Huisman Equipment BV
- 3115 HH Schiedam
- IHC IQIP
- 3361 EP Sliedrecht
- INNOSEA
- 44200 Nantes
- James Fisher and Sons plc
- Barrow-in-Furness, Cumbria, LA14 1HR
- Jan De Nul NV
- 9308 Hofstade-Aalst
- K2 Management
- 8260 Viby
- Liebherr-MCCtec Rostock GmbH
- 18147 Rostock
- MacArtney A/S HQ
- 6710 Esbjerg V
- Nautilus Marine Service GmbH
- 21614 Buxtehude
- Palfinger Marine GmbH
- 5020 Salzburg
- Reach Engineering and Diving Services (REDS)
- Warwickshire, CV21 3XP
- Red7Marine Limited
- Ipswich, IP2 8NJ
- RelyOn Nutec Holding A/S
- 1560 Copenhagen V
- Rhenus SE
- 59439 Holzwickede
- Royal Boskalis Westminster N.V.
- 3356 Papendrecht, LK
- Saitec Offshore Technologies
- 48940 Leioa (Bizkaia)
- Seajacks UK Ltd
- South Beach Parade, Great Yarmouth, Norfolk NR30 3QR
- SeaRenergy Offshore Holding GmbH
- 20354 Hamburg
- SeaRoc Group
- Chichester, West Sussex, PO19 1DS
- SEILPARTNER Windkraft GmbH
- 10405 Berlin
- Semco Maritime A/S
- 6700 Esbjerg
- SKF GmbH
- 97210 Schweinfurt
- SkySpecs
- 48104
- SMD Ltd
- Wallsend Newcastle upon Tyne, NE28 6UZ
- SpanSet Axzion GmbH
- 40764 Langenfeld
- Special Blade Service BV
- 7535ZL Enschede
- TMS Automotive GmbH
- 26723 Emden
- Tractebel DOC Offshore GmbH (DOC)
- 28359 Bremen
- Ulstein Group ASA
- 6065 Ulsteinvik
- Van Oord Dredging and Marine Contractors BV.
- 3009 AN Rotterdam
- VERTEC Solutions GmbH
- 16792 Zehdenick
- Vissim AS
- Horten, N3187
- Windcat Workboats International BV
- 1976 CC IJmuiden
- WINDEA Offshore GmbH
- 20359 Hamburg
- Windsourcing.com GmbH
- 20097 Hamburg
- ZPMC Europe B.V.
- 3198 LB Rotterdam Europoort