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MBB SE is a family-owned German conglomerate specializing in the acquisition and management of medium-sized industrial companies across technology and engineering sectors. Founded in 1995 and headquartered in Berlin, the company operates through three segments: Service & Infrastructure, Technological Applications, and Consumer Goods. The Service & Infrastructure segment offers IT security and cloud services, as well as pipeline and plant engineering for gas, power grids, and hydrogen applications. The Technological Applications segment focuses on manufacturing specialty machinery and automated production lines, particularly for e-mobility in the automotive industry, and develops ecological materials for automotive and rail sectors. The Consumer Goods segment produces tissue products under the "aha" brand and manufactures mattresses and other flexible polyurethane foam products. As of 2024, MBB SE reported revenues exceeding €1 billion and employed approximately 3,982 individuals.

GE Aerospace is the global leader in designing, manufacturing, and servicing commercial aircraft turbine engines, along with partner Safran in their CFM joint venture. With its massive global installed base of nearly 80,000 commercial and military engines, GE Aerospace earns most of its profits on recurring service revenue of that equipment, which operates for decades. GE Aerospace is the remaining core business of the company formed in 1892 with historical ties to American inventor Thomas Edison; General Electric became a storied conglomerate, with peak revenue of $130 billion in 2000, until it spun off its appliance, finance, healthcare, and wind and power businesses between 2016 and 2024.