Periskal Group is an IT company group specialised in River Information Services and navigation software for inland shipping, fishing Vessels, coastal vessels and pleasure craft. Since its foundation in 1990, the company disposes of a unique range of digital river charts together with related software applications. In this way over 9000 European inland vessels, 5000 Fishing vessels and 5000 users in pleasure craft, have been equipped with a Periskal navigation system on board such as Periskal RadarOverlay and Periskal Inland ECDIS Viewer, Chartworx products under the brand names TheMAP, TRAX and Quodfish; and PC-Navigo from Noordersoft. All this makes the group has grown into the largest player in this field in Europe. Periskal is also active outside of Europe, in Africa, South America and Asia.