Allen & Overy (A&O), Clifford Chance (CC) and Linklaters have been ranked top of project finance league tables announced this week.

According to Dealogic tables for legal advisers on 2006 global project finance deals, the three firms finished top after advising on a combined total of 139 transactions.

A&O came top, advising on 66 deals worth $18.2bn (£9.3bn), while CC came second, with 38 deals worth $14.4bn (£7.3bn). Linklaters came third after advising on 35 deals worth $13.27bn (£6.75bn).