Société Générale has made a further two hires for its UK investment banking team, with the latest additions taking the total number of senior advisory bankers appointed by the bank to more than a dozen in recent months.

Johanna Campion, the founder of advisory firm Rockstone Finance and a former head of Lehman Brothers' investment banking coverage of European mid-market media clients, has joined Société Générale in a newly-created role as a senior banker for the UK telecom and media sectors.