Over the past week or so, I was looking for RP corps who stood out as antagonists to my then-active characters (I since deleted the client). Both are of the pro-State, pro-Heth persuasion, and my search didn't get very far -- very likely more as a result of flaws within the characters that I'd have to rectify if I reinstalled, more than anything else.
What I found was that there was a lot of saying people support one group or another, but looking into it seemed to reveal them to not be all so different to other "independent" (i.e. non-RPer) corps based in similar areas. Of course, this is an external perspective; it's very subject to me looking in the wrong places.
It made me wonder, though: how does your character support his / her faction in terms of game mechanics? Commenting about what your corp does in terms of fluff on the IGS, in the Summit, etc. is one thing, but it can sometimes be a bit divorced from consequence and the game itself. Do you seek out people who profess loyalty to opposing factions, run missions for your own faction, try and develop it economically, destroy NPCs aligned with opposed factions, or something else?