ZwillGen is a mid-size boutique law firm that specializes in helping clients navigate legal challenges related to data and emerging technologies.
We have built a strong practice counseling leading Internet, media, and tech companies and handling their high profile online legal issues.
Following years of running practice groups at the nation’s largest law firms, ZwillGen was founded on the principle of delivering thoughtful and practical solutions more efficiently.
Today, we offer unique services from a team of highly specialized attorneys, some of whom have spent the last 20 years developing their knowledge and experience with leading clients, firms, and issues. We make legal advice more accessible to our clients by offering alternatives to the traditional hourly law firm model, including innovative approaches that directly align firm incentives with client success.
What began in 2010 as a big idea in a small Washington, DC row house has become a thriving coast-to-coast law firm with nearly forty attorneys and spread across four offices in Washington, DC, New York, Chicago, and San Francisco.
Founded in 2010 by Marc Zwillinger and Christian Genetski, Zwillinger Genetski LLP was known for its pioneering, anti-Big Law spirit and practical advice. In 2011, Zwillinger Genetski LLP began to grow and was rebranded as ZwillGen PLLC. By 2014, ZwillGen outgrew its Dupont Circle row house and moved a few blocks away to its current home at 1900 M Street NW.
In 2016, ZwillGen opened its California Subsidiary, ZG Subpoena Solutions, to help clients process third-party data requests. That same year, Managing Member and Founder Marc Zwillinger became known as “Apple’s Secret Weapon” for his representation of the company in Apple v. San Bernardino.
Today, ZwillGen continues to be known for its pioneering spirit and practical advice as it helps clients both big and small in a wide range of industries tackle emerging technology and data-related legal issues.
Since our founding, we have been consistently recognized and ranked by some of the legal industry's leading publications for our client service and commitment to diversity.
Washington, D.C. – October 2, 2024 – ZwillGen PLLC today announced the addition of four attorneys to its...
ZwillGen has been named among 43 law firms moving upmarket in a booming litigation market,...
ZwillGen is proud to announce its inclusion in the Mansfield 2024–25 Certification cohort, a pioneering initiative aimed...
ZwillGen is proud to announce that we have been listed in Vault’s 2025 Top 150...
ZwillGen is thrilled to announce its recognition by Chambers and Partners for the 14th consecutive...
ZwillGen is thrilled to announce its inclusion in BTI’s Client Service A-Team 2024, underscoring our...
We strive for a diverse, equitable, and inclusive environment, both for the benefit of our employees, but also because we know it helps us better serve our clients and their goals.