Spinning circle Big letter B

William A. Tanenbaum is ranked in top tiers by Chambers: America’s Leading Lawyers for Business (in New York, National, and Global rankings), Who's Who Legal, and Best Lawyers in America in technology, outsourcing, IP, AI and Data Law and recognized for his strength in healthcare technology. He works closely with clients to bring actionable, industry-informed solutions to their business needs.

Bill has “expertise in technology transactions that puts him at the very top of the market” and “he is a font of knowledge in creating new IT structures” to handle new business uses of technology (Who's Who Legal) and Chamber says "his technology approach and understanding of healthcare - his domain expertise - is a winning combination.” Chambers also finds that he has a “solid national reputation,” is a “prominent figure in technology and outsourcing,” “is recognized for his deft handling of corporate deals relating to cutting-edge technologies,” “uses his expertise to help [clients] successfully navigate negotiations” -- and “brings extremely high integrity, a deep intellect, fearlessness and a practical, real-world mindset to every problem.”

Bill is recognized as one of the “leading names” in AI and as a “go-to expert [on] data.” (Who's Who Legal/Global Data Review). He was named as the “Lawyer of the Year” in IT in New York in 2013 by US News & World Report and served as the President of the International Technology Law Association. He is recognized as one of the Top 30 IT lawyers in the U.S. (Best of the Best/Expert Legal Guide), as one of the “IAM Strategy 300 - The World's Leading IP Strategists,” as an “IP Star” and as a “Life Sciences Star.” (Managing IP; LMG Life Sciences). Bill also “has strong litigation experience” with patent victories in the Court of Appeals for the Federal Circuit (Who's Who Legal).

Bill is the Contributing Editor of the International Comparative Legal Guide to Digital Health 2020. He was appointed by peer review to the “List of the World’s Leading Neutrals [Arbitrators]” and is Board Member of the Silicon Valley Arbitration and Mediation Center. He is also a past Vice President of the Society for Information Management, an industry CIO association (New York Chapter).


Contributing Editor, International Comparative Legal Guide: Digital Health 2020 Laws and Regulations; Lead chapter entitled: "Digital Health, New Technologies and Emerging Legal Issues."BNA Health Reporter, "Data Fabrics, Health Care Data Analytics, and Emerging Legal Issues"HealthCare News & Insights, "How Millennials Will Change Health Care" (co-author))Journal of Health Care Compliance, "Bank Cybersecurity as a Roadmap for Enhanced Hospital Cybersecurity"Wolters Kluwer, Chapter entitled "Addressing Legal Risks in Health Care IT Contracts" co-author)


Practising Law Institute Outsourcing Conference, Co-Chair and Speaker, November, 2020Practising Law Institute IP Institute, Speaker, November 2020Enterprise Data World Conference, Speaker, September, 2020Practising Law Institute Health Care Technology Conference, Chair and Speaker, May 2020Practising Law Institute Internet of Things Conference, Speaker, May 2020


  • The Chrysler Building
    405 Lexington Avenue
    New York, NY 10174-1299


  • Sex: Male
  • Ethnicity: White


  • Cornell Law School

Bar Admissions

  • New York, New York State Bar Association

Lawyer of the Year Badge - 2013 - Information Technology Law

Named "Lawyer of the Year" by Best Lawyers® for:

  • Information Technology Law, New York City (2013)

Recognized in The Best Lawyers in America® 2023 for work in:

  • Information Technology Law


Your browser is not fully compatible with our automatic printer friendly formatting.

Please use the print button to print this profile page.

Spinning circle Big letter B