Profits at international firm Norton Rose Fulbright increased by 22% to £105m in 2013 compared with 2012, on turnover up 3.6% to £367.8m, according to Companies House filings.

The accounts predate the merger between Norton Rose and US firm Fulbright & Jaworski completed in June 2013, which is expected to create a firm with 3,800 lawyers and a turnover of £1.3bn.

Chief operating officer Kevin Mortell said this year the firm will concentrate on integration and organic growth. ‘We’ve done enough mergers, we’re not seeking new acquisitions,’ he said.

Expansion into new markets drove the firm’s 2013 growth in profits, he said. ‘We are different from most firms we are able to offer global service to clients. There are not many others that can say that.’

The LLP filings account for the firm’s European and Asian operations. But Mortell said growth had also come from overseas client work in South Africa and Canada.

However he said the UK still accounted for 50% of LLP revenues.

According to the firm’s accounts the number of fee-earners within the LLP fell by 73 to 988 in 2013, with the number of support staff also dropping by 17 to 1,046.

But Mortell said the numbers have since risen back to 2012 levels or above.