Official NY OCA attorney registration data · Updated 2026 Methodology Discipline records
Law firm

ZwillGen PLLC

6 attorneys in the New York State Bar registry list this organization as their firm or employer.

About ZwillGen PLLC

ZwillGen PLLC is a law firm focused on privacy, cybersecurity, artificial intelligence and other technology and data-related legal matters. Founded in 2010 by attorneys who had previously led practice groups at large firms, it describes itself as a midsize firm that advises companies on product development, data governance, incident response, investigations, litigation and regulatory challenges. Its stated clients include technology companies, digital platforms, financial institutions, healthcare organizations and gaming businesses.

The firm's listed practice areas include information security policies and incident response plans, AI governance, children's and teen privacy, digital advertising and consumer protection, law enforcement and surveillance matters, and gaming and gambling. Its website lists offices in Washington, DC, New York, Chicago and San Francisco, with UK-based support in London. The New York office is at 183 Madison Avenue in New York, NY, and the firm reports more than fifty attorneys and data scientists across its offices.

TypeLaw firm
New York officesNew York
Phone+1 (646) 362-5590
Websitezwillgen.com
Registered NY attorneys6

Practice areas

Areas of work that ZwillGen PLLC describes on its own website. They describe the organization as a whole, not the practice of any individual attorney listed below.

Privacy & Cybersecurity Government & Regulatory Corporate & M&A

Organization profile based on its official website and public sources (reviewed October 30, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with ZwillGen PLLC.

Registered attorneys

Kenneth Dreifach Admitted 1992 · New York, NY Currently registered Rachel Miller Admitted 1996 · New York, NY Currently registered Mason Weisz Admitted 2006 · New York, NY Currently registered Melanie Dornonville De La Cour Admitted 2017 · New York, NY Currently registered Sudhir Rao Admitted 2019 · New York, NY Currently registered Rushil Mehta Admitted 2023 · New York, NY Currently registered

Registration status can change at any time. Confirm any attorney's current status through the official New York Attorney Search.

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