Which company is associated with the C-12 aircraft?

The C-12 aircraft is primarily associated with Beechcraft, a division of Textron Aviation. Beechcraft has a long history of producing various aircraft, including the Super King Air series from which the C-12 is derived. The C-12 was developed using the Beechcraft Model 200 Super King Air as its platform, showcasing its capabilities for military transport.

This association with Beechcraft is essential as it highlights the aircraft's design lineage and operational characteristics tailored to meet military requirements. Other companies listed, such as Gulfstream Aerospace, McDonnell-Douglas, and Lockheed Martin, are known for different types of aircraft and military systems, but they do not have a direct connection to the C-12's development or manufacturing.