Which companies (other than JetBrains) specialize in creating IDEs for different programming languages?

Question

IDE

Of the companies specializing in creating IDEs for various programming languages, I only know JetBrains. For the rest of the companies I found, the IDE is not their main product. Which companies (other than JetBrains) specialize in creating IDEs for different programming languages?

PS I'm asking this question purely out of curiosity.

Answer 1

Eclipse Foundation ?:) It's hard to say, of course, who has the same success as JetBrains shows.