Maersk Group has five core businesses which include Maersk Line, APM Terminals, Maersk Oil and Maersk Drilling and Services and Other Shipping. Through these companies and several others, the Group employs roughly 89,000 people and generated 47 billion US dollars in revenue in 2013. When the Global Service Centres (GSC) was established in 1999, the main focus was to provide off shoring opportunities and solutions to the shipping and logistics business units of the Maersk Group, particularly for Maersk Line.