The firm is noted for its commitment to state of the art equipment in aerial cameras and airborne GPS systems. ADS is located in Tulsa, OK, and employs 30 persons. With a foundation in civil engineering and land planning, it is among the few such firms which can also claim to have a full service capability in photogrammetry and mapping as one of its core business capabilities. The firms beginnings were in 1959. Horizons, Inc. , Jim Spell, President.
Horizons ranks as one of the leading aerial photography and photogrammetry firms of the world.
Founded in 1968, Horizons, headquartered in Rapid City, SD, employs 75 personnel dedicated to their commitment of staying on the forefront of their technology while remaining the best at their utilization of existing equipment, including 5 aircraft. Founded in 1955 as an aerial photography and photogrammetry firm, EDI has achieved national leadership in the application of its core services to the environmental and GIS fields through its capabilities in remote sensing, development of orthophotographic processes, and related computer sciences. Headquartered in Gaithersburg, MD, EDI employs 144 persons.