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Brian A. Birenbach
  • Partner


Dillon, CO






Brian Birenbach concentrates his practice on the representation of corporations and individuals in civil litigation. He devotes his practice to the defense of product liability, personal injury, sports and recreation liability, professional liability, and premises litigation. He also has extensive experience handling commercial, construction, employment, civil rights, and first-party insurance matters. Brian's practice includes the handling of appeals in state and federal court.

Before joining the Rietz Law Firm, Brian was a partner at a large Buffalo, New York, law firm where he devoted a significant portion of his time to the representation of ski resorts, ski shops, and ski equipment manufacturers all over New York State. Over the years, Brian has obtained numerous decisions limiting the liability of his ski industry clients. A member of the Association of Ski Defense Attorneys, Brian is a frequent speaker on issues relating to ski industry liability.

Committed to public service, Brian is a past member of the Town of Frisco Planning Commission, and current member of the Summit County Board of Adjustment.

Brian graduated from the University of Michigan with a Bachelor of Business Administration in 1991. He obtained his law degree from Syracuse University in 1994. He is admitted to practice in New York and Colorado.

Areas Of Practice

  • Defense of Product Liability
  • Personal Injury
  • Professional Liability
  • Premises Litigation

Bar Admissions

  • New York
  • Colorado
  • Florida


  • Syracuse University College of Law, Syracuse, New York
    • J.D. - 1994
  • University of Michigan, School of Business Administration
    • BBA - 1991

Professional Associations and Memberships

  • The Association of Ski Defense Attorneys, Member
  • Colorado Bar Association
  • Florida Bar Association

Past Employment Positions

  • Office of Corporation Counsel in Syracuse, New York, Assistant Corporation Counsel