I'm just as in pain that we lost so many cpu makers. I don't even remember who used to be making chips. It feels like we are down to so few. Ignore Apple entirely (since you can't make a phone with that chip) and Qualcomm and MediaTek are probably make up significantly >50% of the market. Samsung and who else make buyable chips? More to the point of this submission, isn't it amazing how hard it is to get a phone smal…
There are more, but those are the ones off the top of my head. Not all of these companies had their own foundries, by the way. Cyrix just designed the chips, they were fabbed somewhere else.