Allen & Overy (A&O), Wragge & Co and Nabarro have announced their half-year results for 2012-13, as tough markets continue to impact on law firm financial performance across the UK top 50.

A&O has seen revenues fall at the half-year point, with turnover down 2.7% to £566m from last year’s H1 figure of £582m. However, the firm said that on a constant currency basis, reported turnover grew by 1%.