Rodenstock GmbH (German pronunciation: [ˈʁoːdn̩ʃtɔk]) is a German manufacturer of ophthalmic lenses and spectacle frames. The company, which was founded by Thuringian Josef Rodenstock in 1877, is headquartered in Munich. It has a worldwide workforce of approximately 4,900 and is represented in more than 80 countries with sales subsidiaries and distribution partners. Rodenstock maintains production sites for ophthalmic lenses at a total of 14 locations in 13 countries.