[3][5] He eventually served as the Chairman of Europe, Middle East and Africa at UBS Investment Bank, retiring in September 2007.
[7] In 2011 with other bankers he set up DMC Partners, a private equity fund that aimed to raise $2bn to invest in emerging markets.
[8][9] In December 2014, he joined the Board of Directors of Songbird Estates, which owns 70% of Canary Wharf, replacing Khalifa Al-Kuwari.
[5][7][10] In 2018 he became a Partner and Co-Chairman of Alvarium Investments, a private wealth management business, offering corporate finance deals to ultra-wealthy families.
[11] Costa dismissed concerns about Saudi Arabia’s purchase of Newcastle United Football Club as just “noise” created by people jealous of the investment.