Bird & Bird's revenue figure has exceeded the £100m mark to hit £115m, translating to a rise of 20 per cent.
The firm added another £19m on to last year's turnover figure of £96.5m, but is yet to have a confirmed profit per equity partner (PEP) figure.
Last year the firm's PEP grew by 20 per cent to hit £413,000. A similar increase this year would see PEP reach £495,000.
Bird & Bird managing partner David Kerr said the whole firm had pulled together to achieve the turnover boost. "The growth is remarkably spread across the countries and sector areas," he said.
Over the past 12 months, Bird & Bird has consolidated its European expansion with the hire of numerous partners in its Continental offices.
In April Linklaters' Swedish litigation head Henrik Bielenstein became Bird & Bird's fifteenth foreign partner hire in as many months, while in London the firm hired Hammonds sports head Jonathan Taylor and a three-partner IT outsourcing group from Barlow Lyde & Gilbert.
Kerr said he expected further growth in the coming financial year. "It's a pretty dramatic transformation here; there's a whole buzz around the firm," he said.