SeaZip is to expand the number of specialised service vessels in its fleet to six, with an order for two Damen fast crew supplier (FCS) 2610 boats.
The company said the ships will primarily be deployed in the building, operation and maintenance of large-scale wind farms in the North Sea.
The vessels will be built and delivered by March 2016.
The company anticipates further growth on the back of the offshore wind market.
The Damen FCS 2610 types will transport up to 12 passengers and small quantities of freight.
JR Ship Management, part of Harlingen-based JR Shipping Group, will conduct the operational management of the vessels.
SeaZip’s Jan Reier Arends, said: “This first working relationship with the international offshore oil and gas industry is exceeding our expectations and considerably increases the operating prospects of our fleet in the making.
“Of course, we will seize any opportunities in this industry with both hands, but our focus will continue to be on operations & maintenance for the offshore wind farm market. In that market, we see the demand for swift and reliable service vessels virtually increasing every day.”