Brent Sumner

Brent Sumner is a St. Louis, Missouri, personal injury attorney and the managing partner of Sumner Law Group, LLC. Licensed in Missouri and Illinois, Brent focuses his personal injury practice exclusively on representing injured parties and their families in claims against insurance companies.

Brent has successfully represented individuals and recovered tens of millions of dollars in settlements and verdicts from insurance companies. People hire Brent because he is the best at what he does. Brent is aggressive, tenacious, and willing to take cases to trial in order to get full and fair compensation for his clients.

In 2025, Brent was recognized by Best Lawyers as a Top 50 Personal Injury Trial Lawyer in St. Louis, Missouri. The trusted and peer-reviewed distinction is one that only about 5% of practicing U.S. attorneys earn.

Brent regularly takes on trucking companies and their insurance companies for crashes that involve 18-wheelers or other large commercial motor vehicles. With the increase in home delivery, Brent handles cases against Amazon, UPS, FedEx, Walmart, Target, and other major retailers that enlist the services of commercial truck delivery drivers.

In a recent year, Brent successfully sued FedEx in a wrongful death case that settled for a confidential amount based upon the negligence of the contract carrier and its hourly driver, who was hired by FedEx to make the home deliveries. Brent has made it his mission to understand the policy manuals of these large corporations and their duties when it comes to hiring third parties to deliver products. Brent works to hold these companies accountable and make sure the safety of the public is truly a priority.

Why should you hire Brent Sumner for your personal injury case? The answer is Brent Sumner is highly respected by lawyers throughout Missouri and Illinois for his ability to simplify a case and try it to a jury. The large TV advertising law firms have hired Brent to try their complex personal injury cases. Because of the large verdicts Brent has obtained in front of juries throughout Missouri and Illinois, insurance companies know of Brent’s reputation and want to settle with him rather than risk a trial. Most importantly, Brent is sympathetic to your struggles as the victim of a horrific crash and will make sure he understands your injuries and damages in order to be your voice and fight for you.

Primary Practices:

• Commercial Truck Litigation
• Amazon Truck Litigation
• Walmart Litigation
• Personal Injury Litigation
• Wrongful Death Litigation
• Car Accident Claims
• Wrongful Death Claims

Admitted to Practice:

• Missouri
• Illinois
• Eastern District of Missouri Federal Court
• Western District of Missouri Federal Court
• Southern District of Missouri Federal Court
• Southern District of Illinois Federal Court

Community Involvement:

• Board Member of Ladue Education Foundation benefiting the Ladue School District
• Board Member of Cardinal Glennon Children’s Hospital, Glennon Gallop Committee benefiting the Danis Pediatric Hospital