That's probably a realistic assumption. He did mention at a previous date that the companies we'll see at the beginning won't be player-run, but NPC based, and centered around the three cities. So I'm inclined to believe that each city will have it's own, with it's own events, and people will possibly have to chose an affiliation, But again, what he said is not very specific, so this is no more than a probable interpretation.
I wouldn't be one bit surprised if company activities were akin to the concept of public quests introduced by Warhammer Online.
