Douglas Express Delivery specializes in OVER NIGHT courier services of medical supplies, pharmaceuticals, automotive parts, lab samples, banking documents, etc... Douglas Express also provides routed courier service, same day/ Hot Shot courier services. DED has a fleet of over 100 vehicles ranging from small cars, cargo vans, 16'&24' box trucks, and 54' Tractor Trailors. Our home office located on 4225 Industrial Drive in Jackson MS has over 35,000 square feet of warehousing space for anyone who may have warehousing needs. All Douglas Express drivers are Haz Mat and TSA certified.