Law firms Cross-border teams at Gibson Dunn and Weil advise on $18bn Willis and Towers Watson merger Legal Business · 30 June 2015 · 2 min read Corporate and M&A Gibson Dunn Weil, Gotshal & Manges US duo Gibson, Dunn & Crutcher and Weil, Gotshal & Manges have won key roles on the headline merger of Willis Group Holdings, one of the world’s oldest insurance broker, and human resources consultancy Towers Watson, for $18bn.Your limit of 1 article in 30 days is up. Please login for full access or subscribe. Corporate users - click here for simple access (no password needed). For more information, please contact [email protected] Related ContentMore in this categoryRevolving Doors: Weil hires Kirkland secondaries partner as Orrick targets Cadwalader againLaw firmsKate Peacock14 Apr 2026Gibson Dunn passes $4bn in revenue as PEP jumps 24%Law firmsEliza Winter9 Apr 2026Trophy mandates and client plaudits: Weil’s London M&A team hits its strideLaw firmsKate Peacock25 Mar 2026‘We’ve got the building blocks in place to grow’ – Harbottle closes in on £60mLaw firmsTom Cox17 Apr 2026Hogan Lovells and Cadwalader partners approve largest ever law firm mergerLaw firmsKate Peacock15 Apr 2026HSF Kramer leads on £1.4bn Ivy empire saleLaw firmsEliza Winter13 Apr 2026Revolving doors: Simpson Thacher, Latham, Sidley lead New Year London movesLaw firmsAnna Huntley9 Jan 2025‘Seize every opportunity’ – Paul Hastings partner Reena Gogna on City law, Suits and poetryLaw firmsAnna Huntley7 Jan 2025Five partners vie to succeed Hoyland as Simmons managing partnerLaw firmsTom Cox7 Jan 2025