Offshore Systems International Ltd. (OSI) provides precise electronic display systems and geo-spatial data for naval navigation and situational awareness. Founded in 1977, OSI maintains a position of technological leadership in its field, a record appreciated by military, government, and commercial customers around the world. 
Offshore is the world leader in the development of military electronic chart systems. The Canadian Navy, Royal Danish Navy, Canadian Coast Guard, United States Coast Guard WLB and WLB Buoy Tender fleets, and the US Navy George Washington Battle Group, all rely on Offshore products. Offshore has also equipped approximately 80% of the commercial vessels that sail the Canadian and US Great Lakes. 
Offshore is committed to improving the safety and efficiency of marine navigation. As a founder and leader in ECDIS development, Offshore is an active participant in industry standard organizations, and consistently delivers products that meet or surpass evolving standards.

http://www.osigeospatial.com/