Incorporated in 1929, Toledo Engineering Co., Inc. (TECO) is one of the world's largest glass industries providing engineering, project management and construction services in the United States. The company provides a wide range of services, such as technical, project management and construction services for all glass manufacturing processes, from the batch plant and glass melting furnace through the forming, annealing, testing, inspection, packaging and warehousing. It has built about 65 float glass furnaces and has modernized 56 other float glass furnaces.