Guam
Shipping Industry Overview
Recorded shipowner/shipmanager links, deduplicated by IMO before calculating vessel totals and DWT. These links do not establish current control or active service. Company country differs from vessel flag; vessels can appear in more than one country.
DWT coverage: 87 of 341 vessels. Build-year coverage: 338 of 341. Classification recorded: 197 of 341. Age uses calendar build year; missing, pre-1900 or future years are “Unknown”. Missing DWT is excluded, not treated as zero capacity.
The 18–21-year age group is an age indicator only. Actual survey due dates are not available here. Repair visits are historical records labelled “repair”, not proof of a commercial preference. Company and group fleet totals can overlap.
Fleet Age Distribution
Vessel Types
Classification Societies
Top 15 recorded labels plus the remainder. These labels have not been independently verified.
Full breakdown
| Classification label | Vessels | Known DWT |
|---|---|---|
| OTHER | 159 | 20,691 |
| Unknown | 144 | 14,160 |
| ABS | 33 | 25,708 |
| UNKNOWN | 5 | 752 |
Recorded Flags
Top 15 recorded labels plus the remainder. These labels have not been independently verified.
Full breakdown
| Recorded flag | Vessels | Known DWT |
|---|---|---|
| United States of America | 226 | 46,407 |
| GUAM | 59 | 5,317 |
| Unknown | 23 | 0 |
| UNITED STATES | 18 | 3,977 |
| PHILIPPINES | 2 | 0 |
| BELIZE | 1 | 3,200 |
| Cayman Islands | 1 | 11 |
| Colombia | 1 | 0 |
| Italy | 1 | 0 |
| Malaysia | 1 | 120 |
| Mexico | 1 | 1,200 |
| Micronesia Federated States of | 1 | 284 |
| Not Known | 1 | 359 |
| Philippines | 1 | 0 |
| TAIWAN | 1 | 218 |
| Taiwan Province of China | 1 | 218 |
| TANZANIA | 1 | 0 |
| United Kingdom | 1 | 0 |
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About Guam's Shipping Industry
Guam has 184 registered shipping companies (ship owners and ship managers) linked to 341 IMO vessel records. The average fleet age is 39.4 years. This page provides analytics on vessel types, fleet age distribution, recorded classification societies, and the repair yards with recorded visits based on actual vessel visit data tracked by TrustedDocks.