Holterman Shipyard are made to travel and we operate an extensive global service operation with renowned partners. This backs up the warranty package which comes with every new build and the superior support of our experienced service engineers in the Netherlands.

X-105 - The revolutionary Xtreme 105 with tender dock and pop-up pool
Devised in partnership with Bernd Weel and the owners, the solution was to rewrite the rule book altogether by essentially creating two boats in one. The fore and amidships sections of the X-105 feature a conventional monohull with accommodations, lounge and crew cabins, ending aft with a full-beam garage for the two jet-skis and other toys that are launched by side hatches.

X-78 Fly - An evolution of Holterman Shipyard’s Xtreme series
At 23.9 metres, and with a beam of 6.18 metres, the Xtreme 78 Flybridge has the Xtreme series’ signature immense interior volume with a full beam master amidships, two twin VIPs and guest cabin forward. The sleek hull lines contain an exceptionally well-spaced yacht. Engine rooms are well-organised and accessible, and the generous flybridge comfortably accommodates up to 12 people for relaxation. Underwater lighting around the vessel adds to the captivating ambiance from on-deck spaces for guests, and powerful engines propel the vessel to exhilarating speeds of 28+ knots.

X-78 Sport - Muscular lines, trawler windows and a sleek profile
The Xtreme 78 Sport is a fast yacht with large interior spaces to facilitate longer periods onboard with the family. The design concept matches this vision perfectly within an aluminium planing hull and a top speed of over 32 knots made possible by the latest Volvo-Penta IPS 1350 technology. Long continuous glass panels in the hull and superstructure offer excellent views on the water at all times.

X-65 - Muscular lines, trawler windows and a sleek profile
Development work on the Xtreme 65 owes a big debt to the larger Xtreme 78, with its generous exterior space. The long aft deck is designed to offer lounging in both shade and sun, and gives plenty of room for entertaining. Wide side decks tucked behind deep, safe bulwarks run forward to a stylish foredeck lounge.

X-54 - Powerful dynamic, Optimum comfort
The term ‘pocket-size superyacht’ has rarely been more apt than with the first X-treme 54. Her owners required a relaxed and luxurious cruiser to enjoy on European rivers, made possible by a low height and collapsible mast for navigating inland bridges.