Sidusurveys is operated by Siegfried Duwe (Master mariner)

• 12 Years at Sea. Class one (Master Mariner) -> 1976 -  1988
• 16 Years as Open Licence Pilot (Port Elizabeth and Ngqura) ->  2008 - 2024
• Restricted ‹500grt compass calibration licence.

Marine Surveyor since 2005.