Founded in 1975, GTCO CalComp is one of the leading companies in the world that offers computer-input peripherals. It utilizes pen-based electromagnetic sensing technology for interactive whiteboard and digitizer product lines. The company was awarded a patent for the invention of absolute-position electromagnetic digitizing technology and supports more than 1 million input systems in over 50 countries worldwide. GTCO CalComp provides digitizing and measurement products that are used for a range of design, engineering, construction, graphics and mapping applications. Its products include large-format and digitizer-compatible software and wide-format scanners. The company has operations in Maryland and Arizona, as well as Germany. GTCO CalComp also maintains distribution partners in nearly 90 countries worldwide.