Saxon comes to mind although I can't think of anyone else.Mark Bass for heavy metal?
I keep seeing people say Darkglass? They have only been producing amps for probably 2 to 3 years. I had one and now it's gone. Are they good? Depends on who you ask. Iconic? Definitely not.
Now if you were too ask me what amps I personally like the most that I have tried within the last 10 years being a hard rock/heavy metal musician?
Genz Benz Streamliner
Genzler Magellan 800
TC RH750
GK 700rb II
