William A. Tanenbaum is the Chair of the AI & Data Law Practice, and an intellectual property, technology, cybersecurity, outsourcing ,and healthcare technology partner at Moses & Singer LLP. He is a Past President of the International Technology Law Association. US News & World Report has ranked Bill as the “Lawyer of the Year” in IT in New York, and he is named as one of the “Top 10 Pioneering Tech Lawyers Shaping New York’s Legal Landscape” (Business Insider). Legal ranking publications report that clients say: “If I had to refer work, William Tanenbaum is one of the first lawyers I would think of,” “has an impressive data practice,” and “is one of the best IP lawyers I have worked with.”

Bill is ranked each year in the top tiers at the Global, National and New York levels by Chambers Best Lawyers (since 2003, in five technology and outsourcing categories), Who’s Who Legal (since its inaugural edition in AI, data, privacy, and IT), Best Lawyers (since 2001 in IT), and is also named each year as an "IP Star" (Managing IP) and a "Life Sciences Star" (LMG Life Sciences). In IP, Bill draws on his skills as a former partner at leading international intellectual property firm. In AI & Data, his practice includes a focus on the business of data. Bill is recognized by clients and peers for devising creative solutions to business problems created by new technologies and IP challenges. He assists overseas law firms and their clients when companies enter the U.S. market or do business with U.S. entities.