Re: British!
I would agree but it can get a bit complicated.
Looking at Arm on Wikipedia we find this:
Arm Holdings, a multinational company that designs the ARM computer processors
and
Arm Ltd. (stylized as arm) is a British semiconductor and software design company based in Cambridge, England.
But looking for the HQ for Airbus you find this:
Headquarters
Leiden, Netherlands (Headquarters)
Blagnac, Greater Toulouse, France (Main Office)
Madrid, Spain (International Office)
Hamburg, Germany (Operations Office)
I suppose you will not call it a Dutch company due to the HQ.