Exentrim d.o.o.

Platform for survey, testing and certification

SUMNKR Coast Guard

Founded with the aim of improving the general safety culture on the water, and to develop water skills of its members and the general public through various specialist programs

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For all questions and suggestions regarding courses, purchasing boats or selling nautical equipment, write to us at or call us at +381 69 749 326 (from 9AM to 7PM)