Simrad Optronics
Simrad Optronics AS is the holding company of Simrad Optronics Group located in Nøtterøy, Norway. Simrad Optronics Group is a global niche supplier to the defence industry, with production facilities in Norway and Maine, United States. Daughter companies include Vinghøg AS at Nøtterøy, Norway and Vingtech Corporation in Maine, United States. The company was listed on Oslo Stock Exchange until July 2010. As of July 12, 2010 Rheinmetall AG is the company's sole shareholder; following a voluntary offer of May 12 to acquire all issued and outstanding shares in the company. The company supplies products in four  main product areas: There are today three companies using the Simrad brand: The reason for three different companies with different owners using the same brand name is the common history, as the name comes from the original SIMRAD company founded in Oslo, Norway in 1947, by Willy Christian Simonsen, making marine VHF radios and sonar application for the commercial fishery fleet. The name was an abbreviation of Simonsen Radio.