Law firms TLT, Fieldfisher and Osborne Clarke are among the fastest growing institutions in the U.K. Top 50 rankings over the last decade, Law.com International analysis has shown.

The trio of firms each rose at least 18 places in the 10 years between 2013-14 and 2023-24. In addition, the three firms all increased their revenues substantially over the period. Osborne Clarke's turnover rose more than 300% to reach £456.7 million in the last financial year, while Fieldfisher and TLT each saw revenues rise by 200% or more.