Re: Dominic Cummings should read this
The UK has had at least two (or three, depending on how you look at it) world-class (if not always world-renowned) tech companies: Psion/Symbian and ARM.
Those who knew, knew they were pretty good, and, in typical Brtish fashion, we sat around with that feeling of noble satisfaction of a job done well, but didn't shout out enough to publicise them well or to market them strongly, as US companies much more tend to do.
It's almost a miracle that Psion/Symbian became rather successful, for quite a long time, but yet although well known in Europe, apparently neither was particularly well known in the USA (which, at the time, was a market at least as big, if not larger)?
ARM obviously did do a good job of developing a very sizable, and growing, niche, and any sensible UK government and financial investors would hopefully have seen that they were a genuinely world-class company deserving of any necessary support to help their growth, but, as is too often the case, they ended up being bought by a foreign company instead.