You can kinda view ARM and TSMC as their babies. They founded ARM and financed all the node tech in TSMC that made TSMC competitive.
History of TSMC: https://www.youtube.com/watch?v=9fVrWDdll0g
ARM was born out of the BBC micro project, so if anything a BBC baby.
"The company was founded in November 1990 as Advanced RISC Machines Ltd and structured as a joint venture between Acorn Computers, Apple, and VLSI Technology."
All latest node tech from TSMC was co-financed by Apple who in turn had the first-user right.
The company was renamed to Advanced RISC Machines to placate Apple - the first ARM processor was the Acorn RISC Machine, which tells you it's true heritage.