Meggitt is an international company with headquarters in the UK, although more than half its employees are in the US.
The company’s 2020 Annual Report says “Defence represents 46% of Group revenue. We have equipment on an installed base of around 22,000 fixed wing and rotary aircraft and a significant number of ground vehicles. ”
Meggitt’s role in the production of Israel’s Apache attack helicopters was revealed by the Guardian in 2006. Several key Apache components were identified as being produced in the UK, including the air data system – manufactured by Meggitt. (source: Guardian 29.7.2006, plus diagram which is not available online)