Founded in 1965, Diversified Educational Systems is the Mid-Atlantic’s leading educational and laboratory casework, FF&E, curriculum resources, and training equipment supplier. DES has built its business on the expertise and customer service that we bring to schools, architects and contractors alike. Representing a wide variety of nationally known manufacturers, DES is able to supply “turn-key” solutions including: Casework, Equipment, Furnishings, Curriculum, Training and Support.