About Us

INS Yacht Surveyor -
INS Yacht Surveyor -

Water, Ships, Sailing yachts, Ports, ... The World Our Team Was Raised In

Water, ships, sailing yachts, ports, … The world in which our team was raised. And where we still work every day with passion and enthusiasm.

I, Rudi Gelper and manager of International Nautical Services, founded my company in 1998. Over the years I have gathered people around me with the same drive and passion for the job.

Quality, independent advice and knowledge are central to every job.

As an independent family business with so many years of experience, we can live up to this promise.

INS Yacht Surveyor -

We Have Two Bases

We have two bases of operations, one in Belgium and one in the Netherlands. But of course you can count on our expertise worldwide. Wherever the ship is, we go there for you. There are few countries that we have not visited over the years. We know which sensitivities or problems arise more quickly in certain countries. An extra plus for you as a customer.

Certificates And Test Labels

In addition to our many years of experience, our knowledge is supported by a whole series of certificates and inspection labels. Thus, our office in the Netherlands has the inspection label ‘HISWA QUALIFIED YACHT SURVEYOR for a purchase inspection’, we are sworn surveyor, weigher and estimator of ships for the Commercial Court of Antwerp, Nautibel expert, EMCI registered yachtsurveyor and much more. Below you will find the complete list:

  • HISWA Qualified Yacht Surveyor for purchase inspection

  • Nautiv

  • VRT Valuer

  • Sworn surveyor, weigher and estimator of ships / Commercial Court of Antwerp

  • Nautiv member of experts

  • Nautibel expert

  • EMCI Registered Yachtsurveyor®

  • EMCI Registered Marine Surveyor®

  • EMCI Purchase evaluation ®

  • EMCI Maritime Mediator®


  • Hiswa – ISO 10239 certified gas inspector

  • Court expert