I'm surprised no one has mentioned Rene herse. As far as technology goes, their tyres are at the forefront for weight / comfort.
Continental / Schwalbe are big players in the road tire game
Specialized has a surprisingly good array of tyres across all categories
Michelin / Bontrager have some good offerings too
Maxxis / WTB / Panaracer all have an amazing selection for MTB / gravel riding