UTC Climate, Controls & Security was a global provider of building technologies offering fire safety, security, building automation, heating, ventilating, air-conditioning, and refrigeration systems and services.

A wholly owned subsidiary of United Technologies Corporation, UTC Climate, Controls & Security was a $16.7 billion company with 55,000 employees serving customers in more than 180 countries.

[5] In 2020, United Technologies spun off this subsidiary into the independent Carrier Global Corporation.

Otis provides elevator and escalator manufacturing installation, while UTC Climate, Controls & Security's brands provide building technologies, heating and cooling, fire safety and security and refrigeration products and services.

Through its brands, UTC Climate, Controls & Security dates back to 1818, when Jeremiah and Charles Chubb patented the world's first detector lock.