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 categoryTrading Places: Paul Weiss and Kirkland grow in Houston, while Gibson Dunn hires S&C appellate co-headLaw firmsKate Peacock5 May 2026World class: new research showcases the international elite in key practice areasLaw firmsNews Editor29 Apr 2026Weil London restructuring trio leave to join AkinLaw firmsAlex Ryan28 Apr 2026Sidley sees exit of four-partner private equity team across NY and LondonLaw firmsWill Lewallen8 May 2026Legal Business Awards 2026: which firms made the shortlist?Law firmsNews Editor7 May 2026Slaughters and Linklaters take the call as Vodafone buys CK Hutchison out for £4.3bnLaw firmsTheresa Hargreaves6 May 2026Revolving doors: Simpson Thacher, Latham, Sidley lead New Year London movesLaw firmsAnna Huntley9 Jan 2025Five partners vie to succeed Hoyland as Simmons managing partnerLaw firmsTom Cox7 Jan 2025‘Seize every opportunity’ – Paul Hastings partner Reena Gogna on City law, Suits and poetryLaw firmsAnna Huntley7 Jan 2025