LAWYER PROFILE
Liisa Thomas

Liisa Thomas

USA 2026

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Ranked in 1 practice area

About

Provided by Sheppard, Mullin, Richter & Hampton LLP

Practice Areas

Liisa Thomas is a recognized authority in privacy and cybersecurity law, serving as a go-to advisor for in-house counsel and C-suite executives at Fortune 500, multinational and global companies. Based in Chicago and London, she brings a practical, business-focused and cross-cultural approach to advising clients on privacy, cybersecurity, digital advertising and compliance law. She is co-leader of the Privacy and Cybersecurity team.

Liisa is known for translating complex legal requirements—such as GDPR, CCPA, BIPA, TCPA and cross-border data transfer issues—into actionable strategies that protect enterprise value and manage risk.

Having lived in the Middle East, Europe and the U.S. and with an advanced degree in organizational change, Liisa is highly skilled in both translating business needs and cultures across borders and coordinating efforts across continents to protect data, assure compliance with all applicable regulations and advance business goals.

Professional Memberships

Co-Chair, National Association of Women Lawyers

2025 Cybersecurity & Privacy Editorial Advisory Board, Law360

Training Advisory Board, International Association of Privacy Professionals (IAPP)

Member of the Board of Trustees, Chicago Symphony Orchestra (CSO)

Board member, FGLI (First-Generation, Lower-Income) Consortium

Subcommittee Chair, INTA Building Bridges Committee, International Trademark Association

Member, International Association of Privacy Professionals

Member, Women’s Foodservice Forum

Adjunct Professor, Northwestern University School of Law

Member, Leading Lawyers Network

Violinist, Chicago Bar Association Symphony Orchestra

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Privacy & Data Security: Privacy - USA - Nationwide

Band 3
Band 3

Individual Editorial

Liisa Thomas is co-leader of the firms privacy and cybersecurity practice group and fulfills a general advisory role. She is often seen advocating for her clients in contentious data breaches across a plethora of industries, including consumer brands, advertising agencies and education institutions.

Strengths

Provided by Chambers

  • Liisa has vast knowledge and expertise.

    Privacy & Data Security: PrivacyChambers Guide to the USA

Ranked Individuals at Sheppard, Mullin, Richter & Hampton LLP (107)

California

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