In 1994, Mark Pringle, along with business partner Floyd Phillips, were fishing an offshore tournament. “We had every navigation and fishing chart available at the time — yet we quickly realized we had no real idea of what structure might lie beneath us.” Their engineering and business-management skills, along with knowledge of the marine market, led to formation of NSI. Today NSI, located in Edgewater, Maryland, has the most complete, compressive and accurate bathymetric database available for U.S. waters. More than a billion geo-referenced soundings from hundreds of sources allow tremendous resolution of images. NSI creates the Contour 3D bathymetric charts for Maptech, contributes to Navico’s Nautic Insight charts, and develops software for the U.S. government and many private clients.