Porterbrook is 30% owned by a Canadian pension fund, 30% by Allianz, a UK insurance firm, 30% owned by asset management firms and 10% owned by EDF which is owned by the French state.

(Porterbrook is one of the three main ROSCOs (Rolling Stock Operating Companies) that were formed in the UK following the privatisation of British Rail in 1994.  It owns and leases trains to passenger rail and freight companies.)