Applied Concepts, Inc., (d.b.a. Stalker Radar) began as a small contract engineering and manufacturing business in 1975. In the years that followed, ACI applied its engineering and manufacturing expertise to develop the largest patent portfolio in the industry and create an array of products aimed at specialized and niche markets. Today ACI has over 165 employees and a diversified product line that impacts a variety of industries. Their Stalker Radar brand includes products designed for law enforcement, traffic control, and OEM speed measurement, while their Stalker Sport line utilizes their technology in radar products designed for baseball, softball, tennis, acceleration measurement, and other sports. Headquartered in Richardson, Texas, ACIs products are shipped to customers around the world. They have earned their reputation in the global marketplace due to their consistent accuracy, durability, and innovation.