Brian L. Duffy: Lawyer with Greenberg Traurig, LLP

Brian L. Duffy

Denver,  CO  U.S.A.

Peer Rating
AV® Preeminent

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Experience & Credentials Ratings & Reviews

Practice Areas

  • Litigation
  • Appellate
  • Global Energy & Infrastructure
  • Retail
  • Labor & Employment
Contact InfoTelephone: 303.572.6545
Fax: 303.572.6540
University University of South Dakota, B.S., summa cum laude, 1988
Law SchoolUniversity of Colorado School of Law, J.D., 1991 Order of the Coif, Notes and Comments Editor, University of Colorado Law Review
Admitted1991, Colorado; U.S. Court of Appeals for the Ninth Circuit; U.S. Court of Appeals for the Tenth Circuit; U.S. District Court for the District of Colorado
Memberships Denver Bar Association; The Colorado Bar Association; American Bar Association (Chairman, Energy Litigation Committee, 1999-2001).


Brian L. Duffy is a president of the firm and previously served as Chair of the firm's 600-member Global Litigation Department from 2009-2013. He focuses his practice on trial and appellate work in the class action, employment, energy, commercial contract and product liability areas, serving as national, regional and local counsel in high-profile cases. Brian represents public and privately-held entities and their principals in complex business-related disputes arising from both internal and external sources. Brian focuses on a broad array of industries including consumer goods and retail, food processing and restaurants, and energy and natural resources.

Brian has handled numerous jury and non-jury trials, bench trials, proceedings before arbitration tribunals, mediation sessions, and appeals in state, federal and alternative dispute resolution settings throughout the country.

In class action defense, Brian formulates a case strategy which includes a variety of tactics from arguments to win on summary judgment, defeating class certification, or negotiating a favorable settlement. When necessary, Brian can also build a team to take a case to trial and successfully to verdict. Brian's objective is to independently analyze claims while developing strategies designed to achieve an early and cost-effective resolution.

Brian's employment practice includes wage and hour claims, employment breach of contract, discrimination defense, whistle blower and wrongful termination defense. He also assists clients with a variety of contract and business tort and disputes, including breach of contract, breach of fiduciary duty and unfair competition.

Areas of Concentration

· Trial

· Appellate

Professional & Community Involvement

· Member, American Bar Association
- Chairman, Energy Litigation Committee, 1999-2001
- Held numerous leadership positions since 1993

· Member, Colorado Bar Association

· Member, Denver Bar Association

· Member, Faculty of Federal Advocates

Awards & Recognition

· Listed, The Best Lawyers in America, Commercial Litigation; Litigation - Labor and Employment, 2010-2014

· Listed, Chambers USA Guide, 2013

· Listed, Super Lawyers magazine, Colorado Super Lawyers, 2006-2013

· Team Member, a Law360 "Employment Practice Group of the Year," 2011

· Team Member, a Law360 "Product Liability Practice Group of the Year," 2011

· Selected, The BTI Client Service All-Star Team for Law Firms, 2010-2011

· Team Member, a Law360 "Appellate Practice Group of the Year," 2010

· Rated, AV Preeminent® 5.0 out of 5

Professional Experience

Significant Representations

· Acted as national coordinating counsel for Fortune 50 company in defense of approximately 70 wage and hour class actions.

· Acted as lead defense counsel in multi-district litigation proceeding involving 35 putative wage and hour class actions.

· Acted as lead defense counsel in MDL proceeding involving approximately 50 putative consumer class actions arising out of the sale of motor fuel.

· Defended over 200 class actions covering nearly every type of consumer and business issue.

· Represented company in proceedings related to alleged violations of immigration laws, including governmental and internal investigations, related civil litigation and compliance programs.

· Represented companies alleged to have violated the Foreign Corrupt Practices Act (FCPA), including design and implementation of compliance programs, and related internal investigations.

· Represented major energy company in three-week breach of contract trial involving a defective piece of mining equipment which resulted in judgment of $30 million in favor of our client.

· Represented major pipeline company in seven week jury trial arising out of a pipeline rupture and explosion which resulted in the deaths of twelve people. The jury returned a defense verdict on all claims.


· Judicial Clerk, Judge Jim R. Carrigan, United States District Court for the District of Colorado


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Office Information

Brian L. Duffy

1200 17th Street, Suite 2400
DenverCO 80202


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