According to ivy's list they have a presence in the Bronx.
No, they might have a couple guys here but it's not enough to be considered a presence. Even back when the mob was strong here, the Colombos didn't have a single social club in the entire borough. And that's a fact.
But I do agree that a couple of
individuals have had partnerships with some guys from the other families here. For instance, Richie Fusco was pretty tight with Greg DePalma. They were partnered at the old Westchester Premier Theatre, and much later they had a joint together over on Boston Road, near the Pelham line.