All Radio / GMDSS surveyAdd EventAdd Listing Search Search Radio / GMDSS survey Radio Ondas Servicios Marítimos S.L. (ROSM) No Reviews Favorite We are well established Marine Electronics Company with 30 years of experience and satisfaction of our customers is our main ...Radio / GMDSS survey PRO NAUTAS B.V. GmbH No Reviews Favorite Compared to our competitors, PRO NAUTAS has the highest internal budget for training. Our goal is to qualify our engineers ...