About Us

Since 1955, Dia-Nielsen has designed and manufactured the largest variety of marking systems for industrial recorders around the world. As a global leader of pens, we are equally committed to offer a complete line of charts in an effort to support the vast population of recorders in the market place, and to continue to provide supplies for discontinued recorders. Dia-Nielsen is one of the few remaining manufacturers that offers a complete line of plotter products.

Our range of products is growing and expanding to include all types of charts, so we can continually meet the demands of our customers. Our experience and expertise in the paper manufacturing industry allows us to offer a complete line of roll, z-fold, circular and custom charts available in thermal, ink writing and pressure sensitive papers.