Leading Shipping Companies by Total Fleet Capacity (GT & DWT) in 2025.
This ranking lists the world’s largest maritime companies based on total fleet capacity, measured by gross tonnage (GT) and deadweight tonnage (DWT). Updated for 2025, this classification highlights the shipping lines with the greatest physical cargo-carrying capabilities, regardless of the number of ships operated.

Fleet capacity reflects the maximum volume a shipping line can move at any given time. It is calculated using the gross tonnage (for overall size) and deadweight tonnage (for cargo-carrying ability) across the entire fleet.
We source tonnage data from vessel registries, fleet databases, classification societies, and verified carrier disclosures.
Each vessel’s capacity is confirmed across multiple databases to ensure accurate GT and DWT metrics.
The comprehensive table below ranks the world's leading maritime shipping companies based on their fleet capacity. Additional metrics such as number of ships and volume transported provide further context on each company's market position.
| Rank | Company | Fleet Capacity (M TEU) |
|---|---|---|
| 1 | 6.589 | |
| 2 | 6.3 | |
| 3 | 5 | |
| 4 | 4.4 | |
| 5 | 3.3 | |
| 6 | 2.3 | |
| 7 | 1.9 | |
| 8 | 1.75 | |
| 9 | 0.9 | |
| 10 | 0.78 |
Source: International Maritime Organization, 2025
Global DWT and GT continue to rise, even as the number of ships remains stable.
Leading carriers are accelerating investments in next-generation ships with greater efficiency and lower emissions to comply with IMO 2030 environmental goals.
Asian carriers lead in bulk tonnage and container vessel size, with COSCO and ONE expanding capacity in response to manufacturing exports.
MSC and Maersk operate among the highest average capacity ships in the world, giving them an edge on long-haul, high-volume corridors.
Companies are ranked based on cumulative GT and/or DWT.
Fleet capacity is updated quarterly to reflect new vessel deliveries, scrapping activity, and reflagging.
Fleet capacity reflects a carrier’s true transport potential—measuring the actual space available to move goods, not just the number of ships.
AHigh gross tonnage (GT) and deadweight tonnage (DWT) translate into the ability to serve heavy or high-volume cargo contracts and long-distance routes efficiently.
Larger capacity vessels enable carriers to consolidate shipments, reduce voyage frequency, and meet peak demand without adding more ships—reducing cost and emissions.
Total fleet capacity reveals a company’s capital strength and investment in advanced vessels designed for fuel efficiency, regulatory compliance, and global compatibility.
Only a select group of deepwater terminals worldwide are equipped to handle the largest container vessels.
Source: World Shipping Council, 2025
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