They are their own family. They are under the Gambino flag, but there has been talk of them trying to have the Genovese crime family represent them a some years now. Whoever the boss is, we will more likely find out which family they are aligned with.

"I have this Nightmare. I'm on 5th avenue watching the St. Patrick's Day parade and I have a coronary and nine thousand cops march happily over my body." Chief Sidney Green