Cleary Gottlieb Steen & Hamilton maintains a globally integrated e-discovery practice that supports complex disputes, investigations, and transactions across the US and Europe. The practice is well-regarded for its handling of cross-border discovery issues, advising on data transfer, privacy, and regulatory constraints in multi-jurisdictional matters. Apart from contentious matters, the group advises clients on discovery planning and data strategy at an early stage, helping to streamline workflows, control costs, and reduce risk across multiple proceedings. Washington-based Christian Mahoney leads the team, with notable focus on AI, data analytics, and information governance. Delante Stevens regularly advises clients on discovery best practices in the context of litigation, regulatory reviews, and investigations.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘CJ Mahoney is a strong innovator in using tailored AIML tools in e-discovery.’
‘Cleary is ahead of all outside counsel we work with when it comes to technology and how to efficiently review and produce documents. Cleary's confidence in using advanced technology and features allows for a very strategic approach in managing the review and production.’
‘Christian Mahoney is the most knowledgeable and forward-thinking e-discovery practitioner I have worked with.'
‘Cleary's e-discovery team is a diverse group of professionals that I have the fortunate opportunity to work with. The team brings a sophisticated and knowledgeable approach to drive successful outcomes. Cleary's team of professionals are well-informed and aligned with the forefront of technology innovation.'
'Every statement, advice, and recommendation that comes from this team is sophisticated. They are solution-oriented and reliable.'
‘Exceptional knowledge, expertise, and experience in e-discovery and technology.'
Key clients
- GTCR
- Keurig Dr Pepper
- Tempur Sealy International
- T-Mobile
- Capital One
- General Mills
- Edwards Lifesciences
- OCI N.V.
Work highlights
Acted as e-discovery counsel to Keurig in monopolization litigation and on the e-discovery aspects of its $18 bn acquisition of JDE Peet’s.
Acted as counsel to T-Mobile in its $4.4 bn acquisition of UScellular’s wireless operations and select spectrum assets.
Acted as counsel to Tempur Sealy International Inc., in defeating a vertical merger challenge brought by the FTC to Tempur Sealy’s $5 bn acquisition of Mattress Firm Group.
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Christian Mahoney