Nabarro's highest paid partner received a 30.7% pay hike in 2012-13, while the firm's profits grew by double digits in the same period.

The firm's limited liability partnership (LLP) accounts, filed with Companies House, show that the top earner pocketed £635,000, up on the previous year's equivalent of £486,000.

The accounts also reveal that the firm's profits significantly increased in 2012-13. Operating profit rose 22% from £34.7m in 2011-12 to £42.5m, while total profit for the financial year grew by 24% to £42.2m.

Meanwhile fee income rose by 4.3% to £117.2m during 2012-13, up from£112.4m. The figures largely mirror those disclosed by the firm at the end of 2012-13, when it posted unaudited revenue of £116.3m, climbing by 2.6% on the previous year, and an 11% rise in unaudited net profit.

At the time the firm attributed the improved profit figures to a firmwide reduction in costs, increase in turnover and the effects of an equity partnership restructuring that took place in 2012.

The average number of members at the firm dropped from 120 to 104 during 2012-13, while the average number of employees decreased from 701 to 674. Fee earner numbers fell from 347 to 342 and support staff from 354 to 332. Staff costs in turn decreased 4.6% to £42.3m, with salaries falling from £37.2m to £35.5m.

The firm reported net cash of £13.2m, adding that that demand for services "could be impacted" by liquidity pressure on the its clients and suppliers as well as economic conditions.

Elsewhere, the firm's overdraft facility is due for renewal this month (January 2014). The firm had said at the time that it will open renewal discussions with the bank "in due course" amd that the board had no reason to believe the facility would not be renewed.