Dan Mummery is a partner in the Palo Alto office of Gibson, Dunn & Crutcher and is Co-Chair of the firm's Strategic Sourcing and Commercial Transactions Group.  Mr. Mummery serves on the Gibson Dunn Hiring Committee and is the hiring partner for the Palo Alto office.

BTI Consulting named Mr. Mummery a 2017 BTI Client Service All-Star MVP, one of only 54 lawyers in the United States to be included as a BTI Client Service All-Star for two or more years.  The BTI Client Service All-Star list features lawyers who "stand out as absolutely best at client service" not "just great – but head and shoulders above the rest as defined solely by clients."

Mr. Mummery is ranked by Chambers & Partners as one of the very best outsourcing lawyers in the world.  Chambers USA (2017) and Chambers Global (2017) have awarded him their highest rankings in the categories of Outsourcing (USA, Band 1), IT & Outsourcing (California, Star Individual) and Outsourcing (Nationwide, Band 1).  According to Chambers, Mr. Mummery is "an absolutely incredible outsourcing lawyer", with a "wonderful negotiating style" who "fiercely protects client interests" and provides "creative, out of the box thinking."

Mr. Mummery is also included in The Best Lawyers in America 2017,  Practical Law Company's Cross-border Outsourcing Handbook (2011-2012), Northern California Super Lawyers, The Lawdragon 500 (New Stars, New Worlds), Global Counsel 3000 and Mondaq Business Briefing, Survey of Leading E-Commerce Lawyers and is a member of the Advisory Board of Global E-Commerce Law and Business Report.  In 2017, he was named to the inaugural Legal 500 Hall of Fame for being a "Leading Lawyer" (US, Media, Technology & Telecoms, Technology – Outsourcing) for the last six consecutive years.

Mr. Mummery's practice encompasses a wide range of technology transactions and sourcing matters, with a particular emphasis on complex on-shore, near-shore and off-shore information technology and business process outsourcing transactions (including renegotiations, restructurings and terminations), shared services, business transformation, ERP implementations, software as a service (SaaS), information as a service (IaaS), cloud computing, licensing and contract manufacturing arrangements.  Mr. Mummery's ITO experience includes infrastructure, data center services, ADM, security, end-user computing, help desk, call center and managed network transactions.  His BPO experience includes global business services, HR, finance and accounting, procurement, supply chain management, claims processing, facilities management, clinical programs, fulfillment and logistics transactions.

Mr. Mummery has worked with a broad range of clients in major sourcing engagements and technology transaction matters, including some of the largest automotive, communications, energy, financial services, healthcare, life sciences, manufacturing, media, technology and transportation companies in the world, as well as emerging growth companies and private equity and venture capital investors.  He has represented such clients as AT&T, Charles Schwab, Chemtura, Chevron, Clorox, Continental Airlines, Con-way, DuPont, General Motors, KPMG, Levi Strauss & Co., MetLife, Miller Brewing Company, NetApp, Patheon, Ryder, Sempra, Symantec, Tenet Healthcare and Universal Music Group.

Mr. Mummery's work in structuring, negotiating and implementing outsourcing transactions has been featured in The Recorder, The Daily Deal and Business Finance.  He is a frequent lecturer on outsourcing topics including, most recently, at ITO, BPO and offshoring programs organized by BusinessWeek, Gartner, Sourcing Interests Group and The Conference Board.

Mr. Mummery received his J.D. from Fordham University School of Law in 1988, where he served as editor-in-chief of the Fordham Urban Law Journal, and his A.B. from Bowdoin College in 1981.  He is admitted to practice law in California and New York.


  • Fordham University - 1988 - Juris Doctor
  • Bowdoin College - 1981 - Bachelor of Arts


  • California Bar
  • New York Bar