INSB Class has been delegated by an extended number of Flag Administrations as listed below, to act on their behalf for the conduct of statutory surveys and certification in accordance with the IMO international conventions and codes, as well as with national requirements pertaining to ship safety and for the prevention of marine pollution.


1. Greece (for National Legislation)     21. Kenya
2. St. Vincent & the Grenadines     22. Jordan
3. Panama     23. Palau
4. Belize     24. Moldova
5. Cook Islands     25. Mongolia
6. Com. of Dominica     26. Costa Rica
7. Nigeria     27. Philippines*
8. Union of Comoros     28. Niue
9. Honduras     29. St. Kitts & Nevis
10. Cambodia     30. Barbados
11. Jamaica     31. Gabon
12. Togo     32. Republic of Congo
13. Lebanon     33. Marshall Islands (Only for yachts)
14. Syria     34. Tanzania
15. Belarus     35. Vanuatu
16. Equatorial Guinea     36. Guyana
17. Cape Verde        
18. Sudan        
19. Republic of Guinea        
20. Madagascar     *Validation of Agreement under progress


USCG Approval

Since 2006, INSB Class remains approved by the United States Coast Guard (USCG) for Classification Society Activities  under 46 CFR part 2, subpart 2.45) , in reflection of our commitment to achieve ever-higher standards.

INSB classed vessels freely operate in the United States waters, on the same basis with IACS classed fleet.



Our Process

We appreciate that operating safety and reliability of your fleet are vital to your everyday marine commitments.
INSB's loyalty to operational safety is eminent as we work to identify & manage potential risks to achieve improved ship safety and compliance throughout vessels demanding lifecycle.

Our activities are supported by the expertise and resources developed over almost 4 decades in offering survey & classification services via highly trained surveyors, auditors and experts who apply their decisive experience and knowledge for improving ship safety standards and creation of sound operational reliability and endurance.

We respect tight shipping schedules and by being available 24/7 we focus on our high responsiveness and technical expertise that can make a difference to you and your classed fleet.

We are conscious for operationally sound vessels that perform best in an uninterrupted manner. Thus, we strive for vessels continued technical integrity and fleet optimization by means of regular ship survey program and technical assessments.