There is bigger question here. How many people are still make money from selling compiler/language tools? Like, write a static analyzer, or php optimizer or sell a Swift library for linux application or a language-X to language-Y transpiler. So, far, I have found this industry to be opaque, unlike web industry! And if they make money, how much? Btw, there was YC company which sold PHP server optimizations. Anyone kno…
There are a few major players that I can think of that makes money in the compiler/language tools category (JetBrains and Embarcadero are the two that comes to mind but I'm sure there are many more). But I think for a small player it would be hard