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Flag State · Ship Register
Japan
Primarily Other Types· JP
1,841
vessels
29.2M dwt
total dwt
13.0
avg age (yrs)
19%
>20yr share
Country hub
Japan — owners, ports, people & news
Safety performance
PSC detention & casualty rates · A–E grade per flag
Register Profile
Fleet on the Flag
Tracked vessels1,841
Total deadweight29.2M dwt
Average fleet age13.0 years
Over 20 years old261 (19% of dated)
Primary segmentOther Types
Owner linkage7 (0% of fleet)
Composition
Segment Mix
Other Types1,499 (81%)
Bulk Carriers298 (16%)
Container Ships43 (2%)
Gas Carriers1 (0%)
Operators
Largest Owners on the Register
A pure derivation over the vessels we track — the Japan fleet count is the number we hold for the register, not the official register size, so a register we under-sample reads low. Average age is deadweight-weighted (the broker convention) over hulls with a known build year; the over-20-year share uses the same build-year-known denominator. Top owners reflect only our owner linkage, which covers 0% of this register — read the list in that context. Segments use the same classifier as the rest of the platform. Snapshot 2026-06-30.