Once again don't forget the Abu Dhabi connection. It would make perfect sense to choose a company that was in Etihad's position prior to gaining profitable status.
Would rule out Richard Mille, Paddy Power (just the betting partner of MCFC nothing more), Hays, 2stic (sorry but that's absolutely laughable to suggest) and Harvey Nichols. Nothing against any of those companies by any means (including 2stic) but they will never be anything more than partner level. They certainly wouldn't come close to consideration on a NYCFC shirt never mind MCFC.