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Taipei Economic and Cultural Representative Office, a Taiwan representative office alternative to an embassy •
TECO Maritime, an international producer and supplier of cleaning systems for ships •
TECO Electric and Machinery, a Taiwanese company in electric motor, electric appliances and other businesses worldwide •
TECO Energy, an American electrical power company •
Technical Education Center Osceola, a secondary school in unincorporated Osceola County, Florida, US •
Telecooperation Office, a German research group in the field of pervasive Computing at the Karlsruhe Institute of Technology ==Other uses==