Looking over the list again while I eat lunch, of all of the RP corps I recognize on the list, I don't see any whose loyalties were either a surprise or not something already verifiable IC with a little digging or looking around. There are a bunch of other corps I've never seen before, though, but that's not surprising. EVE's a big place.
Something needs to be done about the Intaki ones though - I didn't see a single person who actually declared loyalty to the Syndicate - they declared loyalty to the Assembly or the secessionist movement instead, which is entirely, completely different from the Syndicate.