Derek H. MacKay

Top rated Business Litigation attorney in Kansas City, Missouri

Knight Nicastro MacKay LLC
Derek H. MacKay
Knight Nicastro MacKay LLC

Practice Areas: Business Litigation, Products Liability, Personal Injury

Licensed in Missouri since: 2006

Education: DePaul University College of Law

Selected to Super Lawyers: 2022 Selected to Rising Stars: 2011 - 2021

Knight Nicastro MacKay LLC

304 W 10th St
Kansas City, MO 64105 Phone: 816-708-0105 Email: Derek H. MacKay Visit website


Derek MacKay joined Knight Nicastro in 2018. Less than a year later, he was a named partner, making him one of four owners of Knight Nicastro MacKay, LLC, a litigation-focused law firm with 7 regional offices in Colorado, Missouri, Montana, and Illinois.  Since joining the leadership, Derek has been directly involved in expanding the Colorado-based law firm including growing the Kansas City office, Montana and Illinois offices, and opening a new office in St. Louis.  Derek defends a wide variety of cases, with a particular emphasis on personal injury, commercial disputes, product liability, and insurance coverage.  Derek has a specialty in bet-the-company litigation, many of which were high-profile cases with significant national media attention.  Derek defends each case aggressively with an eye toward trying cases that others think are unsolvable.

Representative Cases

Waterpark Industry – Represented a large waterpark in Kansas City that involved national media coverage due to a fatality of a patron on one of the water park rides.  Only four months from the date of the incident the matter was resolved due to a strategic defense.

Hotel Industry – Represented a national hotel chain where an individual was shot by a security guard who was an off-duty police officer. 

Restaurant Industry – Represented a well-known Plaza restaurant after an explosion leveled the structure due to a gas leak.

Firearm Industry – Represented a firearm dealer who was sued after a pistol was used in a shooting of a family member.  The case involved federal issues and was argued in front of the Missouri Supreme Court. 

Mining Industry – Obtained a favorable trial result for a large mining company that was sued for wrongful death.

Starting in 2009 and every year since, Super Lawyers has honored him as a Rising Star, an honor reserved for 2.5% of lawyers under the age of 40.  He was also honored in 2020 by Missouri Lawyers Weekly as an Up-and-Coming Law Firm Leader, recognizing him as a professional who holds an important leadership position at KNM.


First Admitted: 2006, Missouri

Professional Webpage:

Bar/Professional Activity:
  • National Society of Professional Insurance Investigators
  • Council on Litigation Management
  • Kansas City Bar Association
  • Kansas City Claim Handlers Association

Office location for Derek H. MacKay

304 W 10th St
Kansas City, MO 64105


1 Year Super Lawyers
11 Years Rising Stars
  • Super Lawyers: 2022
  • Rising Stars: 2011 - 2021

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