GE Aerospace (GE) vs Merck & Co., Inc. (MRK)

GE Aerospace (GE) is a global leader in the design, manufacturing, and servicing of commercial aircraft turbine engines, including through its CFM joint venture with Safran. Supported by a vast installed base of nearly 80,000 commercial and military engines worldwide, the company generates most of its profits from recurring service revenue tied to equipment that remains in operation for decades. GE Aerospace is now the core remaining business of the company founded in 1892, which has historical connections to American inventor Thomas Edison. General Electric evolved into a renowned conglomerate, reaching peak revenue of $130 billion in 2000, before spinning off its appliance, finance, healthcare, wind, and power businesses between 2016 and 2024.

Merck & Co., Inc. develops pharmaceutical products across multiple therapeutic areas, including cardiometabolic disorders, oncology, and infectious diseases. In cancer treatment, its immuno-oncology portfolio, led by Keytruda, represents a significant driver of total revenue. The company also maintains a strong vaccines business focused on preventing pediatric illnesses, alongside Gardasil for human papillomavirus. In addition, Merck markets animal health products. Geographically, 47% of the company’s sales come from its U.S. human health segment, which includes pharmaceuticals and vaccines.