20 Essex Street - UK 100

Turnover: £22m

Head of chambers: Iain Milligan QC

Total tenants (silks): 50 (17) plus 17 arbitrators.

Door tenants: Five

Chambers contributions: 12 per cent

Revenue per barrister: £440,000

Top cases last year: Equitable Life v Ernst & Young; Phoenix Pictures v Axa Reinsurance; Petromec & Petrobras; Allsports Ltd, Manchester United, Umbro, The FA, JJB Sports & ors v OFT; Crehan v Inntrepreneur.

No of appearances in House of Lords: Two

No of appearances in Court of Appeal: 50

Barrister to staff ratio: 1:0.27

Average hourly rates: £270-£650

New clients: Hunton & Williams, McDermott Will & Amery.

Income derived from overseas work: 10 per cent