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IMO Ship, Company and Registered Owner Numbers: Research and Registration

IMO Number Registration and Research

Register for an IMO ship, company or registered owner number

IHS Markit is the sole and originating source for the International Maritime Organization (IMO) Ship, Company and Registered Owner number scheme, with responsibility for assigning and validating these numbers. The numbers are issued from the global maritime databases maintained by IHS Markit and consist of a unique seven digit number. IHS Markit manages this Scheme on behalf of the IMO.

To learn more about the IMO numbering scheme, please visit IMO Ship and Company Number Scheme.

To register for an IMO ship, company or owner number, please visit IMO Identification Numbers for Ships, Companies & Registered Owners.

Conduct research by IMO ship, company or registered owner number

IHS Markit has leveraged its position as the issuing authority for IMO ship, company and registered owner numbers to amass the industry's largest maritime database. Search Sea-web by IMO number to find detailed information on:

  • 200,000+ ships
  • 240,000+ companies
  • 290,000+ owners

Visit Sea-web to see the wealth of information you can download when you search by IMO numbers. Add AISLive to monitor real-time vessel movements.

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