Jackson Lewis Principal Mary T. Costigan Named Co-Leader of L&E Global’s Data Protection & AI Group
NEW YORK (August 18, 2026) — National employment law firm Jackson Lewis P.C. is pleased to announce Mary T. Costigan has been named co-leader of L&E Global’sData Protection & AI Group.
L&E Global is an international alliance of employers’ counsel firms advising organizations on employment matters across jurisdictions. Jackson Lewis is a founding member of the alliance, which includes 33 member firms and more than 2,000 legal professionals across six continents.
L&E Global’s Data Protection & AI Group focuses on workplace issues including employee data privacy, workplace monitoring, AI tools used in recruitment and human resources, automated decision-making and human oversight, cross-border data transfers and data breach response.
“Mary brings a strong understanding of the complex data privacy and cybersecurity issues employers face as workplace technology continues to evolve,” said John L. Sander, Chairman of L&E Global and co-leader of Jackson Lewis’ International Employment group. “Her experience advising organizations on workforce data, artificial intelligence and cross-border compliance will be an asset to employers navigating issues across jurisdictions. We look forward to the perspective and leadership Mary will bring to this role.”
Mary is a principal in Jackson Lewis’ Berkeley Heights, New Jersey, office where she advises clients across various industries on privacy and cybersecurity laws, data protection best practices and AI governance. She regularly handles matters related to employee and consumer privacy, biometric data, artificial intelligence, EU data protection requirements and cross-border data transfers. With her extensive experience as a breach coach, Mary provides strategic counsel on cybersecurity incidents and related regulatory inquiries.
“Mary is a trusted colleague and adviser who consistently brings practical judgment and a deep understanding of privacy, cybersecurity and emerging AI issues to her work with clients,” said Joseph J. Lazzarotti and Damon W. Silver, co-leaders of Jackson Lewis’ Privacy, AI and Cybersecurity group. “She has been an important contributor to our group, particularly in helping employers translate complex and rapidly changing requirements into solutions that work for their organizations. Her collaborative approach, technical knowledge and commitment to client service will serve her well as co-leader of L&E Global’s Data Protection & AI Group.”
Mary holds Certified Information Privacy Professional/United States (CIPP/US) and Certified Information Privacy Professional/Europe (CIPP/E) credentials from the International Association of Privacy Professionals. She is a member of the IAPP Women Leading Privacy Advisory Board and serves as co-chair of the National Association of Women Lawyers Privacy and Cybersecurity affinity group. Her work has been recognized in The Best Lawyers in America® in the “Employment Law – Management” and “Privacy and Data Security Law” categories, as well as with a Lexology Client Choice Award.
Mary earned her J.D. from Suffolk University Law School and her B.A. from the College of the Holy Cross.
About Jackson Lewis
Focused on labor and employment law since 1958, Jackson Lewis P.C.’s 1,100+ attorneys located in major cities nationwide consistently identify and respond to new ways workplace law intersects business. We help employers develop proactive strategies, strong policies and business-oriented solutions to cultivate high-functioning workforces that are engaged and stable and share our clients’ goals to emphasize belonging and respect for the contributions of every employee. For more information, visit jacksonlewis.com.
Media Contact:
Kendall Melidosian
Public Relations Manager
(267) 319 7831
Kendall.Melidosian@jacksonlewis.com
###
ATTORNEY ADVERTISING
Jackson Lewis P.C. offices that are responsible for the content of this advertisement include New York, NY; Hartford, CT; New Orleans, LA; and Orlando, FL. Prior results do not guarantee a similar outcome.