WHO ARE WE
About INS
Qualified Master Mariner
Rudi Gelper
Since 1998, International Nautical Services (INS) has provided independent, high‑level maritime inspection and advisory services to shipowners, insurers, financial institutions, and operators worldwide. The firm was founded in Belgium by Qualified Master Mariner Rudi Gelper, with an additional office established in the Netherlands in 2001 and followed in 2024 with an office in Cape Town South Africa. INS has since conducted surveys and assignments in over 50 countries globally.
With a strong family heritage in the maritime industry and more than three decades of professional experience in marine surveying, Rudi Gelper brings a depth of technical authority, operational insight, and industry knowledge to every engagement. Under his leadership, INS has built a reputation for precision, independence, and integrity, delivering consistently high‑quality surveys, expert reports, and trusted advisory services to an international client base.
EXCELLENCE
Our team is driven by a shared commitment to high standards and continuous improvement in marine surveying, combining professional expertise with a genuine focus on quality.
GLOBAL
INS maintains a strong international presence, delivering a wide range of marine and non marine survey services with an emphasis on compliance, safety, and operational efficiency.
MULTILINGUAL
INS provides reports in four languages:
English, French, German, and Dutch, ensuring clear communication across international stakeholders.
Certifications
ACCREDITATIONS
Memberships
Industry Affiliations
INDEPENDENT EXPERT ADVICE
Speak With Our Surveyors
Vessels are inherently complex assets, and not all issues are visible at first glance. Our qualified surveyors combine technical expertise, industry insight, and independent judgement to provide a complete and accurate understanding of a vessel’s condition.
By identifying potential risks at an early stage, we help clients avoid unforeseen costs — whether through preventative action, informed negotiations, or reduced operational exposure.
Our reports are detailed, well‑structured, and widely recognised by lenders, insurers, and classification societies. They support efficient transactions and establish a clear, reliable record of condition from the outset of ownership or charter.
In addition, cargo, commodities, and specialised equipment are frequently transferred across locations and between parties, often involving changes in ownership, responsibility, and risk. During these critical moments, our surveyors verify condition, quantity, and quality, helping to prevent damage or to accurately determine its cause and extent when it occurs.
Whether acting proactively or in response to an incident, INS provides clear insight and dependable documentation at every stage.
Contact us to discuss your requirements and ensure your assets are properly assessed, protected, and documented.
MAP OF CLIENTS & SURVEY LOCATIONS
WHERE WE WORK
