In 2003, World-Wide acquired Norway's Bergesen d.y. ASA, the world’s largest gas carrier operator. The acquisition brought together two well-established businesses with similar commitments to quality and industry leadership. Bergesen Worldwide was established as a holding company incorporated in Bermuda on 29 October 2003 under an internal group restructuring implemented in 2003 and 2004.
In 2005, a further re-organisation took place, accompanied by the re-branding of the business under a single group brand, BW. BW Group Ltd was incorporated in Bermuda and became the holding company of the Group on 10 April 2007.
The BW Group is comprised of BW Gas, BW Offshore and BW Maritime. BW Gas was listed in Olso in October 2005 as a pure gas player with the BW Group retaining a majority share. The company's last day on the Oslo Stock Exchange was 30 June 2009 and the company is now wholly owned by BW Group. The offshore division was then spun off and listed in Oslo in May 2006 as BW Offshore. BW Maritime, formerly World-Wide Shipping Managers, remains in the Group's private ownership.