Allen & Overy (A&O) has become the first magic circle firm to announce its 2011-12 financial results, posting a 6% increase in revenue on the back of another year of investment across its network.

The firm saw turnover climb to £1.182bn during the last financial year, up from £1.119bn in 2010-11. Profits per equity partner (PEP) remained static at £1.1m for a third consecutive year, while profit (before tax and exceptional items) grew by 7% to £486m, up from £456m.