The Boeing Company (BA)

Beyond civil aviation, Boeing is a significant defence and space contractor. Its portfolio includes military aircraft, rotorcraft, satellites, missile systems, autonomous technologies, and command-and-control capabilities. This business serves the US Department of Defense, allied governments, and space-related customers, placing Boeing alongside large defence peers such as Lockheed Martin, Northrop Grumman, RTX, and General Dynamics.

Boeing also runs a global services operation that supports aircraft and defence platforms throughout their operating lives. This includes maintenance, spare parts, modifications, training, digital tools, and logistics services for airlines and military customers. The segment gives Boeing exposure to the installed base of aircraft already in service, rather than only to new aircraft deliveries.

The company’s investment case is closely tied to aviation demand, manufacturing execution, regulatory oversight, supply-chain stability, and defence budgets. Its scale, technical complexity, and long product cycles make Boeing a strategically important industrial company, but also one whose performance can be heavily affected by production disruptions, certification issues, and customer confidence.