The UK’s 100 largest law firms have broken through the £40bn revenue mark for the first time, with their combined turnover almost doubling over the past decade.
Total revenues across the LB100 climbed by more than £3bn during 2024-25 to reach £40.15bn – just 1% shy of double the £20.19bn generated by the group 10 years ago.
Ninety of the 100 firms saw fee income rise during 2024-25, with average growth across the group of 9.6% marginally down on last year’s equivalent figure of 10%. Forty one firms enjoyed double-digit growth compared with 53 in 2023-24.
Notably, 80% of the firms posting double-digit growth were drawn from the second 50, with 12% average growth across the bottom half of the LB100 outpacing the equivalent 7% increase for the top 50.
Disregarding the A&O Shearman merger, only three firms in the top 25 achieved double-digit growth in turnover – Linklaters (10.5%), Addleshaw Goddard (11.2%) and Kennedys (11.7%).
Despite this, the largest firms still dwarf the rest of the market, with the top 10 contributing 54% of all LB100 revenues, and the top 50 contributing 91%.
Broken down by firm type, the fastest growing firms were the regionals (see firm types below), with an average increase of 11.5%, some way ahead of the internationals, which pushed up revenues by an average of 6.3%.
Pinsent Masons saw revenue rise by 4.7% to a new record high of £680m over the year, a result senior partner Andrew Masraf (pictured) described as cause for celebration – while also acknowledging the scope for improvement.
‘We had record turnover last year, in a world which remains uncertain and complex. We don’t have a US business throwing a lot of revenue in our direction, so we celebrate the achievement of a year of record revenue. But we know our market and competitors continue to drive their own performance and that we need to continue to perform and grow.
The five fastest-growing firms in the LB100 were new model law firm Setfords (50.6%), personal injury practice Fletchers (37.2%), pensions specialist Sackers (35.3%), Welsh firm Hugh James (32.4%) and Stowe Family Law (29.8%).
Setfords and Stowe were two of four new entrants to the LB100 this year, alongside Scots duo Digby Brown and Morton Fraser MacRoberts, another firm whose growth was delivered by a merger.
Average revenue growth by firm type
| Firm category |
Revenue growth |
| Regional firms |
11.5% |
| London firms |
10.7% |
| National firms |
10.6% |
| International firms |
6.3% |
Smaller firms also outperformed their international rivals on profits growth, with average PEP growth for the second 50 standing at 8.9% – almost double the 4.6% average growth across the top half of the table.
Average PEP growth for the LB100 as a whole was 6.5%, significantly down on last year’s equivalent of 13%. Average PEP across the group rose to £916,000, up from £844,000.
This year, almost 75% of firms increased PEP – down from almost 90% last year, but significantly up on 2022-23, when less than half (47%) of firms increased profits.
National firm Blake Morgan, which has six offices across the UK, boosted PEP by 8% to £349,000 in 2024-25, against a 4.6% increase in revenue; however managing partner Mike Wilson (pictured) said PEP could have been higher still, but for the firm’s strategy of investing profit back into the business.
‘If we didn’t reinvest you’d see a much higher PEP, but we do invest. We have a balanced view, between keeping PEP at a reasonable level to attract talent, while at the same time investing into the business.’
‘What happens at the top end of the market percolates down to the levels of the market that we operate in. There are a lot more opportunities for law firms of our size. That manifests itself in talent coming onto the market, with people who are attracted to businesses such as ours. That is a key part of our strategy for growth.’
UK regional practices had the strongest year for average profit growth, with a 9.3% average increase outpacing international players and London firms.
Average profit growth by firm type
| Firm category |
Profits growth |
| Regional firms |
9.3% |
| International firms |
6.4% |
| London firm |
6.3% |
| National firms |
3.3% |
At Hogan Lovells, which put in one of the strongest performances of the international firms, with PEP up 9.1% to £2.4m, global corporate and finance head James Doyle (pictured) stressed the importance of adaptability in a fast-changing marketplace.
‘The market is changing constantly – last year felt like each quarter was different, with conditions shifting every few months, and volatility increased significantly during the first part of this year with different developments affecting the markets seemingly every two weeks,’ Doyle said. ‘The ability to adapt to different market cycles and keep your team busy throughout is essential. That’s how a healthy law firm operates.’
View the full table of LB100 financial results here.
*LB100 firms by category
Regional firms: Thorntons, Burness Paull, Brodies, Shepherd and Wedderburn, Fletchers Solicitors, Bond Turner, Veale Wasbrough Vizards, Birketts, Stevens & Bolton, Brabners, Capsticks, Michelmores, Foot Anstey, Walker Morris, JMW, Ashfords, Ward Hadaway, Cripps, RWK Goodman, Blake Morgan, Harrison Clark Rickerbys, Broadfield, Hugh James, Digby Brown, Morton Fraser MacRoberts
National firms: Burges Salmon, Devonshires, Keystone Law, Bevan Brittan, Mills & Reeve, gunnercooke, Ampa, Freeths, Browne Jacobson, Hill Dickinson, Weightmans, Keoghs, TLT, Taylor Rose, Irwin Mitchell, Thompsons, Shoosmiths, Gateley, Knights, Penningtons Manches Cooper, Trowers & Hamlins, Leigh Day, Clarke Willmott, Slater and Gordon, Setfords, Stowe Family Law
London firms: Sacker & Partners, Mishcon de Reya, Kingsley Napley, Lewis Silkin, Fox Williams, Wedlake Bell, Howard Kennedy, Bristows, Macfarlanes, Charles Russell Speechlys, Stewarts, Farrer & Co, RPC, Harbottle & Lewis, Travers Smith, Russell-Cooke, Forsters, Winckworth Sherwood, Fladgate, Wiggin
International firms: Freshfields, Clifford Chance, Linklaters, Slaughter and May, A&O Shearman, Hogan Lovells, Womble Bond Dickinson, Norton Rose Fulbright, DLA Piper, Eversheds Sutherland, Bryan Cave Leighton Paisner, Kennedys, Osborne Clarke, Stephenson Harwood, DWF, Addleshaw Goddard, HFW, Watson Farley & Williams, Simmons & Simmons, Herbert Smith Freehills, Bird & Bird, Taylor Wessing, Ashurst, DAC Beachcroft, Gowling WLG, Pinsent Masons, CMS, Clyde & Co, Fieldfisher, Withers