I guess it depends on your definition of "Support":
If you mean "keeps teammates alive", then aggro management does just that.
If you mean buffs/heals to keep your teammates alive, then the only examples are higher values on Grant Cover and the existence of Ground Zero (shared by scrapper and brute).
If you mean "force multiplier", then the higher values on -res powers and Bruising are a thing (on live, at least).