The Legal 500

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Mayer Brown

Work +1 312 782 0600
Fax +1 312 701 7711

Rebecca Eisner

Work +1 312 701 8577
Mayer Brown

Work Department

Corporate & Securities.


Rebecca Eisner focuses her practice on technology and business process outsourcing and sourcing, information technology transactions, privacy, and security. Rebecca has represented clients in complex global and offshore technology and business process outsourcing transactions, including information technology, finance and accounting, human resources, procurement, customer relationship and call centers, and development and transformational outsourcing, and cloud computing. She also has experience with re-structuring and re-negotiating outsourcing transactions, in-sourcing, managing acquisitions and divestitures in outsourcing transactions, and termination of outsourcing arrangements, and other strategic sourcing relationships. Rebecca has represented both buyers and providers of technology goods and services. Her extensive experience includes software licensing, maintenance, support and development, application maintenance, offshore development, ERP implementations, systems integrations, back office processing services, ASP agreements, technology development and licensing agreements, hosting and data center agreements and network management agreements, and hardware acquisition and maintenance agreements. Rebecca regularly advises clients in data transfer and privacy issues, electronic contracting and signatures, and web site design and review. Her privacy work includes advising clients on privacy and data transfer issues affecting corporate initiatives, such as divestitures, global data programs, and global technology solutions.


Ohio State University, BA, 1984 cum laude; University of Michigan, JD, 1989 cum laude.

United States: Media, technology and telecoms

Cyber law (including data privacy and data protection)

Within: Cyber law (including data privacy and data protection)

Rajesh De heads Mayer Brown’s group; his expertise encompasses security breach preparation and response, data privacy litigation, regulatory and compliance issues, and supply chain and vendor management. The practice also leverages its global footprint to advise clients on the new GDPR requirements and other international regulatory matters. David Simon is a key name for cybersecurity, regularly advising the victims of state-sponsored cyber activity, and Chicago-based Rebecca Eisner handles global data transfers and e-commerce issues. All attorneys, unless otherwise specified, are based in Washington DC.

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Within: Leading lawyers

Rebecca Eisner - Mayer Brown

Within: Outsourcing

Mayer Brownreally knows what it is doing in the outsourcing space’ and has ‘a widely respected practice and a strong team’. The firm’s business and technology sourcing practice, which predominantly advises buy-side clients such as Sears Management Holding Company, has ‘a big presence across the US market and has a lock on the Midwest’. Clients also remark that it ‘understands market standards, which allows it to quickly resolve any issues’. Brad Peterson leads the practice from Chicago, where Rebecca Eisner, Paul Roy and rising star Joe Pennell are also recommended. Daniel Masur in Washington DC is also regarded as a leading light. Peterson’s recent highlights include assisting Caterpillar with the negotiation and governance of an agreement with technology company Uptake for a data analytics platform. Eisner’s work included advising Albemarle on the implementation, hosting and licensing of an enterprise resource planning (ERP) system, including on-premises and cloud software licenses.

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