Firm Index · Practice × market

Top Family Law firms in London

The firms combining the deepest family law footprint with a presence in London, ranked by the Sartori Firm Index.

01 The ranking

Family Law firms in London

These law firms pair a strong public Family Law footprint with a recorded presence in London, ranked by the Sartori Firm Index — a 0–100 measure of scale, reach and hiring built from public data. The ranking reflects public footprint and momentum, not the quality of any firm's family law work in London.

#	Firm	Index	Tier	Attorneys mapped	Markets
1	Knights	60.2	National	1,500–2,500	London, Manchester, Oxford…
2	Mills & Reeve	55.2	National	1,000–1,500	Cambridge, Birmingham, Manchester…
3	Birketts	54	National	500–1,000	Ipswich, Norwich, Cambridge…
4	Withersworldwide	52.9	Global	500–1,000	London, Singapore, New York…
5	Keystone Law	50.8	National	500–1,000	London
6	Irwin Mitchell	47.2	National	1,000–1,500	London, Sheffield, Birmingham…
7	Mishcon de Reya	45.8	International	500–1,000	London, Singapore, Hong Kong…
8	Charles Russell Speechlys	45.4	Global	500–1,000	London, Guildford, Cheltenham…
9	JMW Solicitors	43.9	National	500–1,000	Manchester, London, Liverpool
10	Penningtons Manches Cooper	40.4	Global	250–500	London, Guildford, Basingstoke…
11	Boies Schiller Flexner	38.7	International	250–500	New York, Miami, Washington…
12	Stewarts	36.6	National	250–500	London, Leeds
13	Farrer & Co	34.6	National	250–500	London