I think these are what the OP means. Tell us who they are.
I listed a few but given I have a bit from every developer listed so far, I was reluctant to name a bunch because where do you start and where does it end?
I’ve always been curious about infinite brass so it’s good to hear positive talk about that. If I’m to add another to the pot, I’m thankful for pluginguru and their Omnisphere patches...spectrasonic too for that matter