Coastwise Offshore provides crew transfer vessels and services for the offshore wind and offshore oil & gas industry. We own a fleet of two uniquely designed crew tenders which can be deployed short-term and long-term for crew transfer, support and survey purposes.

Our crew tenders offer a multitude of benefits for our customer. The design has competitive advantages such as more comfort, good seagoing characteristics and a high level of fuel efficiency due to its optimized hull form.

Our crew tenders can remain on-site in significant waves up to 2 – 2,5 meters, resulting in longer uptime for our customer.

The vessels have been designed to reduce fuel consumption and as close to zero emission as possible, compliant with Tier III.

The vessels can deliver up to 30 industrial personnel at a windfarm fast and comfortably with less risk of seasickness.

In addition, the CTVs have a moon pool and are designed to fit an A-frame at the stern deck, making the vessels ideally suitable for route surveys, seabed mapping, inspection survey and services for dredging.


Endurance time to our second Crewtender, Cos Mate.