Brian M. O'Neal

Brian M. O’Neal Partner


Brian M. OíNeal represents the interest of management in all areas of Labor & Employment law. Brianís experience prior to joining McMahon Berger, includes general defense litigation in Missouri and Illinois representing corporations in lawsuits ranging from medical malpractice to employment-related issues. Brian also served as a law clerk at the Missouri Court of Appeals, Eastern District for the Honorable Gary M. Gaertner, Sr.

Brianís employment practice includes all facets of employment law, including employment discrimination claims under Title VII and the Missouri Human Rights Act, the American with Disabilities Act, and the Family and Medical Leave Act. He is involved in litigating employment discrimination claims as well as investigating and responding on behalf of management to employee claims before administrative agencies. In addition, he advises clients on employment-related matters such as employment contracts and daily human resources issues.


Rockhurst University

Rockhurst University



magna cum laude
Saint Louis University

St. Louis University



Admitted To Practice

  • State of Missouri
  • State of Illinois
  • United States District Court, Eastern District of Missouri
  • United States District Court, Western District of Missouri
  • United States District Court, Southern District of Illinois
  • United States District Court, Northern District of Illinois
  • United States District Court, Central District of Illinois


  • Super Lawyers - Missouri/Kansas Super Lawyers Rising Star (2012-2019)

Professional Associations

The Missouri Bar Member
Illinois State Bar Association Member
Society for Human Resource Management Member
Human Resource Management Association of Greater St. Louis Member

Community Involvement

Metro Strikers Head Coach (2005 - 2011)
Alumni - Board Member (2014-2019)
Board Member (2014-Present)
Board Chair (2017-2018)

Blog Posts by
Brian M. O’Neal View All