Zachary L. Lass

Zachary L. Lass

recognized lawyers icon Recognized in Ones to Watch since 2025
Awarded Practice Areas
Criminal Defense: White-Collar Environmental Law Natural Resources Law
Awarded Practice Areas
Criminal Defense: White-Collar Environmental Law Natural Resources Law
Works at
Wilmer Cutler Pickering Hale and Dorr LLP

105 Best Lawyers awards

Wilmer Cutler Pickering Hale and Dorr LLP logo

Biography

Zach Lass represents clients on a broad range of complex civil, criminal, administrative and regulatory matters. He specializes in crisis management, helping clients navigate inquiries from Congress, the Department of Justice, other federal and international agencies and regulators, and state attorney general offices. He provides strategic counsel to clients involved in government investigations, internal investigations, litigation, as well as regulatory compliance matters. Mr. Lass has represented clients across a variety of industries, including pharmaceutical and healthcare companies, energy and natural resources companies, environmental organizations, and technology and media companies.

Works at
Wilmer Cutler Pickering Hale and Dorr LLP

105 Best Lawyers awards

Wilmer Cutler Pickering Hale and Dorr LLP logo

Locations

Education

  • University of Denver, J.D., graduated 2019
  • University of Colorado at Boulder, BA, graduated 2013

Bar Admissions

  • Colorado, Colorado Bar Association

Client Testimonials

Awards & Focus

Recognized in Best Lawyers: Ones to Watch® in America 2026 for work in:
  • Criminal Defense: White-Collar
  • Environmental Law
  • Natural Resources Law

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