Go on, now I'm curious! Which are those, Ian? (I imagine Colonia Council may be one?)
I thought of a couple more if you really stretch the definitions...
Unambiguously: Kumo Council and Sirius Industrial are bubble factions which are still hanging on for now at Delaine Terminus [1].
If you define the bubble very loosely: Colonia Council and People of Colonia are both present as far out from Colonia as the old Hilary Depot highway station at Blu Thua AI-A c14-10, which is 2100 LY from Sol and so not within the "connectivity" definition [2] of the bubble but well within the 7500 LY radius defined by the later bubble-sourced outposts (Crab, Eagle, Heart and Soul, etc.) which Rohini
just sits outside.
If you also define Colonia very loosely: Brewer Logistics is present at all the CB megaships. CB-1 at 335 LY from Sol is closer than some systems which are part of the bubble under the connectivity definition (e.g. the Pleiades) though doesn't meet that definition itself. Meanwhile CB-56 is well within visual range of the Colonia nebula which is my working "do I need to think about this?" definition.
[1] Interestingly, Sirius Industrial has managed to hold on here rather better than they have at most of the other Kumo stations! The political situation in Colonia has changed a bit since their arrival, too, which makes an invasion to knock them out unlikely for now.
[2] Two systems are connected if you can in theory expand a BGS faction from one to the other given sufficient time (and for simplicity ignoring permit and other political locks that would normally prevent it, so just considering the 30LY extended cubes); the bubble is the set of systems connected to Sol. This was joined to the Pleiades cluster by Sirius just before the first Thargoid skirmishes.