Johnson Controls International plc is a global technology company. It specializes in energy efficiency, decarbonization, thermal management and mission-critical performance, which helps customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in expanding industries such as data centers, healthcare, and advanced manufacturing. Its segments include the Americas, EMEA, and APAC. It is engaged in engineering, manufacturing, commissioning and retrofitting building products and systems, including commercial heating, ventilating, air-conditioning (HVAC) equipment, industrial refrigeration systems, controls, and security systems. It serves customers by providing technical services, including maintenance, management, repair, retrofit and replacement of equipment and energy-management consulting. It also offers OpenBlue digital ecosystem to optimize real-time airflow in buildings based on occupancy for customers across industries.