Our digitizing and measurement products are used for a wide range of design, engineering, construction, graphics and GIS/mapping applications. Our InterWrite products provide interactive hardware and software solutions for education, corporate and government training professionals. GTCO CalComp, headquartered in Columbia, MD, is a global company with offices in Scottsdale, Arizona and Munich, Germany.
Founded in 1975, the Company was awarded a patent for the invention of the world's first absolute-position electromagnetic digitizing technology. Since then, GTCO CalComp has produced and now supports over 1 million input systems in fifty countries around the world, sold under some of the most recognized brand names in the peripherals industry. The Company continues to focus on developing input peripherals that dramatically improve individual and group productivity. Each GTCO CalComp peripheral is engineered for a specific use and user in mind.
GTCO CalComp stands behind its products with responsive service, technical support and standard warranties that range from one to five years, depending on the product line. GTCO CalComp takes stringent steps in both design and manufacture to ensure the highest possible level of product reliability with a goal of zero customer downtime. We invite you to browse our site and hope that you too will soon benefit from a GTCO CalComp product.
Large-Format Digitizers:

AccuTab VI - Large-Format Digitizers Wide Range of Sizes Absolute Accuracy—Up to ± .002 in Superior Data Integrity Guaranteed High Accuracy Illuminated Cursor

DrawingBoard VI - Large-Format Digitizers Wide Range of Sizes High Resolution—12,700 lpi High Accuracy—± .002 in

Roll-Up III - Large-Format Flexible Digitizers Range of Sizes Portable and Light Weight Resolution 2,540 lpi Rugged–Redundant Grid Technology

Super L VI - Large-Format Digitizers Widest Range of Sizes Resolution 2,540 lpi Accuracy ± .010 in Corded or Cordless Pointing Device
Estimator's Tools:

QuikRuller III - Measuring System Fast, Accurate Takeoffs No Computer Necessary