New York-listed Seaspan Corp has been ranked the largest independent containership shipowner in the world.

It is the first time a non-German owner has held the top spot since the beginning of containerisation in the 1970s.

Seaspan takes over from Reederei Claus-Peter Offen, which has been pushed into second place, according to Alphaliner figures.

Seaspan manages 79 containerships totalling 484,000 teu and also has the largest orderbook among charter owners, with 30 ships of 361,000 teu in the works, Alphaliner says.

Offen