Credit Suisse First Boston has lost BSkyB, the UK satellite television group, as a broking client. Its departure is the second loss of a FTSE 100 client from the Swiss-American bank in a month.

BSkyB, which has a market capitalisation of £10.6bn (€15.2bn), had three corporate brokers, whereas most British companies have two. CSFB was broker alongside Deutsche Bank and Goldman Sachs, both of which have retained their roles. A rival broking source said: "The company may have felt that three was a crowd." CSFB and BSkyB declined to comment.