Brian M. Mumaugh

Brian M. Mumaugh

Holland & Hart LLP

Recognized since 2011

Denver, Colorado

Practice Areas

Employment Law - Management

Labor Law - Management

Lawyer of the Year Badge - 2022 - Labor Law - Management
Lawyer of the Year Badge - 2022 - Labor Law - Management
Spinning circle Big letter B

Employers in a variety of industries engage Brian Mumaugh to represent them when embroiled in disputes with employees.

With more than 25 years of experience, clients trust him to find practical, favorable solutions to their labor and employment issues.

Brian represents employers in a broad range of employment and labor matters including Title VII, age discrimination, FLSA wrongful discharge, breach of contract, public policy discharge, covenants not to compete, and related employee disputes in federal and state courts in multiple states across the country.

Brian also represents employers before Federal and State Administrative agencies including the EEOC, the NLRB, the NMB U.S. Department of Labor, the Colorado Civil Rights Commission, the Colorado Department of Labor, and state and federal agencies in his nationwide practice. He has comprehensive experience representing management in labor matters including representation elections and disputes, unfair labor practice proceedings, unit determinations, collective bargaining, and labor arbitration.

In addition to his work as an employment lawyer, Brian has developed a nationwide practice in traditional labor law representing management in a variety of industries, including manufacturing, transportation, airlines, railroads, mining, construction, warehousing, medical, grocery, and security and government contracting. His experience includes labor negotiations, significant labor arbitrations, labor litigation, pension and benefit issues and contract interpretation under the National Labor Relations Act and the Railway Labor Act.

Prior to joining Holland & Hart in 1989, Brian gained experience as in-house labor attorney representing a major airline in labor matters, arbitrations, collective bargaining and providing advice to management on a wide variety of labor and employment issues.

Contact & Links


  • 555 Seventeenth Street, Suite 3200
    Denver, CO 80202-3979

Bar Admissions

  • Colorado, Colorado Bar Association
  • Nebraska, Nebraska State Bar Association


  • Colorado Defense Lawyers Association - Member
  • Colorado, Nebraska, and American Bar Associations - Member

State Clerkships

  • Nebraska - Trial Courts

Holland & Hart LLP
Headquarters: Denver, Colorado

168 The Best Lawyers in America® awards

53 Best Lawyers: Ones to Watch in America awards

Best Law Firms Badge
Full Firm Profile

Lawyer of the Year Badge - 2022 - Labor Law - Management

Named "Lawyer of the Year" by Best Lawyers® for:

  • Labor Law - Management, Denver (2022)

Recognized in The Best Lawyers in America® 2022 for work in:

  • Employment Law - Management
  • Labor Law - Management


  • Recognized for excellence in labor and employment law by Colorado Super Lawyers
  • Recognized since 2005 as a leader in labor and employment law by Chambers USA, America‚Äôs Leading Lawyers for Business

Spinning circle Big letter B


Your browser is not fully compatible with our automatic printer friendly formatting.

Please use the print button to print this profile page.

Spinning circle Big letter B