​​Marvel Laboratories is owned by Amanda Marcantel Hammond and her husband, Trey Hammond. Born and raised in Southwest Louisiana, Amanda fell in love with the tree-lined streets and stately homes located in Greenwood after a weekend visit. During her 15 years as a Clinical Laboratory Scientist specializing in Toxicology and Regulatory Compliance, Amanda has held every position in a laboratory, from phlebotomist to Lab Manager and finally, Owner.


Non-DOT Pre-Employment Drug Screening,
Random Drug Screening,
Post Accident Drug Screening


(662) 336-1141


Hugh ‘Trey’ Hammond III

​​Trey is the co-owner of Marvel Laboratories and serves as the Director of Sales and Marketing. Born and raised in the Delta, Trey graduated from St. Joe’s in 1993. After serving as a Firefighter with the City of Greenville for 3 years, Trey began a career in sales and customer service. Trying his hand in different fields, Trey found his calling at Sysco Foods. His outgoing and gregarious nature allowed Trey to thrive for 9 years as an Outside Salesman. At the time of his departure from Sysco Foods, to start Marvel Laboratories with his wife, Trey was handling multiple million-dollar accounts with ease and finesse.


An avid outdoorsman, Trey is eager for the beginning of his first hunting season back in the Delta. Most weekends, he can be found playing with their children, grilling and supporting his beloved Ole’ Miss.