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RTX is an aerospace and defense manufacturer formed from the merger of United Technologies and Raytheon, with roughly equal exposure across three segments, mostly as a supplier to commercial aerospace and to the defense market: Collins Aerospace, a diversified aerospace supplier; Pratt & Whitney, a commercial and military aircraft engine manufacturer; and Raytheon, a defense prime contractor providing a mix of missiles, missile defense systems, sensors, hardware, and communications technology to the military.

Siemens AG is a global electronics and electrical engineering company, operating in the industry, energy, and healthcare sectors. Founded in 1847 and headquartered in Munich, Germany, Siemens focuses on areas of electrification, automation, and digitalization. One of the world's largest producers of energy-efficient and resource-saving technologies, the company is a leading supplier of systems for power generation and transmission as well as medical diagnosis.