Find Flags, Classification Societies & Maritime Services
Access ship registry information, recognized organization profiles and maritime resources in one place.
Search by Flag
Find flag administrations and explore registry information and authorized recognized organizations.
Search by RO / Class
Find recognized organizations and explore their flag state authorizations.
Explore Maritime Reference Directories
Access structured information about flag administrations, recognized organizations and P&I providers.
Flag Directory
Explore flag administrations, registry information and recognized organization relationships.
Explore Flags →Class / RO Directory
Browse classification societies and recognized organizations with their available authorization information.
Explore Organizations →P&I Directory
Discover P&I providers and related maritime insurance reference information.
Explore P&I Providers →Registration & Classification Assistance
Looking for support with vessel registration, flag changes or classification matters? Submit your enquiry for an individual review.
Flag Registration & Change
Enquiries concerning vessel registration, reflagging and flag administration options.
Class / RO Change
Assistance enquiries regarding classification societies and recognized organizations.
Bareboat Registration
Registration enquiries involving bareboat charter arrangements.
Maritime Documentation
Enquiries regarding related vessel documentation and administrative requirements.
Maritime Guides & Resources
Practical reference guides for maritime professionals dealing with vessel registration and classification matters.
Flag Change Guide
Understand the main considerations and documentation involved in changing a vessel’s flag.
Read Guide →Class Change Guide
Explore the general process and considerations involved in transferring classification.
Read Guide →Bareboat Registration Guide
Learn about bareboat registration arrangements and common administrative considerations.
Read Guide →Need Assistance With Your Vessel?
Whether you are considering a flag change, class transfer or another registration matter, tell us about your requirements.
Request Assistance ↗