• vcard
  • Education
    • J.D., Cornell Law School
    • A.B., Brown University, Highest Honors; Phi Beta Kappa
  • Court Admissions
    • U.S. District Court, Southern District of New York
    • U.S. District Court, Eastern District of New York
    • Court of Appeals for Federal Circuit
    • United States Supreme Court

William A. Tanenbaum works closely with clients to provide actionable, industry-informed solutions for their business needs. He assists companies in technology and IP transactions, adopting AI for business innovation, joining law and data to unlock value, using technology to transform health care, the protection and use of IP, and related matters.

A “well-known and highly respected practitioner” who “has expertise in technology transactions that puts him at the very top of the market“ (Who’s Who Legal), Bill is ranked in the top tiers by Chambers: America's Leading Lawyers for Business, Who’s Who Legal and Best Lawyers in America in technology, outsourcing, IP and data law. Chambers says Bill has a “solid national reputation” and is a "prominent figure in technology and outsourcing" with "notable expertise in cybersecurity, data law and IP," and that he “brings extremely high integrity, a deep intellect, fearlessness and a practical, real-world mindset to every problem." Bill's practice includes Health Care IT. He is recognized as one of the 2019 Legal “Thought Leaders Global Elite” (Who's Who Legal), and named as one of the Top 30 IT lawyers in the U.S. (Best of the Best/Expert Legal Guide). 

Bill is a past President of the International Technology Association. He was named as "Lawyer of the Year" in IT in New York by US News & World Report/Best Lawyers in 2013. He is recognized as "one of the leading names" in AI and data law (Global Data Review/Who's Who Legal). Bill’s “vast experience . . . makes him a go-to expert in all manner of issues related to the management and protection of data" (Who's Who Legal). Chambers found that Bill has "broad strengths" in the IP and technology aspects of M&A and corporate transactions. It also found that clients endorse Bill as a "brilliant lawyer" who provides "savvy, zealous representation" and "understands the market and uses his expertise to help [clients] successfully navigate negotiations." Bill "has strong litigation experience" (Who’s Who Legal) with victories in the Federal Circuit, and helps clients avoid litigation.

He is a member of Polsinelli's 40-attorney Technology Transactions & Data Privacy Group, and the Practice Co-Chair of the Heath Care Technology & Innovation Group, the nation's second-largest practice according to the American Health Lawyers Association. Bill runs Polsinelli's "AI, Machine Learning and Data in Health Care" Webinar Series. His practice concentrates on:

  • Technology transactions
  • IP transactions
  • X-as-a-Service and cloud transactions
  • Outsourcing agreements
  • Health Care technology transactions and innovation
  • IP, IT and Health Care aspects of M&A transactions
  • Transferring innovative legal techniques implementing emerging technologies from Health Care to other industries
  • Securing patents and other IP protection
  • Strategic IP counseling
  • Data-driven business
  • Data ownership, licensing, shared use agreements and data polices for regulatory compliance
  • AI, Machine Learning, Natural Language Processing and Data Analytics
  • Technology transactions to provide cybersecurity and privacy infrastructure
  • Government IT
  • IP and technology litigation and arbitration
  • Sports law technology

Bill was a partner at a national IP law firm. Clients say there is "no issue that is unfamiliar or too complex or intimidating [for him] to take on" (Chambers); and he is "one of the best IP lawyers I have worked with" (Clean Tech Guide).

  • Licensing and commercialization for NASA
  • IP for a sovereign wealth fund
  • Summary judgment win for CLS Bank in the Alice v. CLS patent litigation
  • Ryder for outsourcing and dispute resolution
  • Costco to establish its online store in China
  • Airbus and other aerospace companies for IP and technology 
  • A multi-vendor, multi-jurisdiction, multi-tower outsourcing for one of the 10 largest private companies in the world
  • Health Care technology agreements for several of the largest health care systems in the U.S. and the Gordon and Betty Moore Foundation
  • Epic electronic health records agreements
  • Proton Therapy System for a university hospital system
  • IP agreements for a drone company
  • The Miami Heat for e-commerce and technology
  • ServiceMax (formerly part of GE), an AI-enabled predictive maintenance company, for transactional, regulatory and privacy matters
  • Nanotechnology company, ApJet 
  • IT and cybersecurity for the Practising Law Institute (“PLI”)
  • IP for outsourcing consulting firm ISG
  • TTEC (formerly TeleTech), an outsourcing and customer care company, for M&A, transactional and outsourcing matters
  • Maxim Healthcare Services for IT and business transactions
  • IP for Exiger (AI-enabled database breach, investigations, monitorship and financial crimes services firm)
  • Avon, for hardware and outsourcing
  • Video game company, Nexon
  • Beverly Hills Hotel and other hospitality industry companies 
  • Technology agreements for data security firm
  • Digital platform for the Health Distribution Alliance
  • Embark, a new model, industry-disruptive travel company
  • Nordea Bank, U.S. IT agreements
  • The States of New York, Washington and Hawaii and the government of Finland for government IT projects
  • Arbitrator in outsourcing and technology disputes (member of the Board of Directors of the Silicon Valley Arbitration and Mediation Center)
  • Pro Bono services, New York Volunteer Lawyer for the Arts


text icon Publications & Presentations
Joining Law and Data: Creating Policies that Meet New Regulations
Presenter, Enterprise Data World Conference - San Diego
March 2020
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Digital Medicine Conference
December 2019
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PLI IP Institute
October 2019
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PLI Outsourcing Conference
Co-chair and Speaker
October | November 2019
webinar Webinars
September 18, 2019
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PLI IP Law Institute
September 2019
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Relentless Health Value
Podcast, Interviewee
August 2019
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Wednesday, July 17
webinar Webinars
July 17, 2019
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PLI Internet of Things Conference
July 2019
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