D & R is a certified ISO 9001:2015 company with four core areas of expertise; technical manuals development; the preparation and conduct of training programs; the planning and performance of logistics/product support analysis; and 3D modeling and simulation. We have been providing these services to commercial and defense industries since 1990, and have earned an excellent reputation for integrity, quality, and expertise. We believe that our commitment to these values is responsible for our growth and success, which is largely driven by repeat business.