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Aviation (MIC: 1.1 SIC: 3724 NAIC: 336412) United Technologies provides high‐technology products and services to the building systems and aerospace industries worldwide. Through its commercial businesses, which consist of Otis, Carrier and UTC Fire & Security, Co. serves customers in the commercial and residential property industries worldwide. Through Carrier, Co. also serves commercial, industrial, transport refrigeration and food service equipment customers. In addition, Co.'s aerospace businesses, which comprise Pratt & Whitney, Hamilton Sundstrand and Sikorsky Aircraft, primarily serve commercial and government customers in the aerospace industry.
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