Continuing on from the previous list, not all of these are in ACTA (yet):
Tholians: numerous small ships initially that hide defensively behind web. If they're able to setup & defend expect a bloody battle while later web-casters allow them to be more mobile. Good to average manueverability.
Orions: The SFU pirates. Operate from ~8 cartels spread around the Octant. Able to select weapons based on their local area of operations. Good maneuverability.
Hydrans: Tough ships that come in three flavours: 1) Hellbores with few fighters, able to fight at range while still hitting a down shield, 2) Fusion with MANY fighters, forced to get close but deliver serious damage when they do, and 3) Mixed weapon ships with some fighters, mostly command variants of ships. Average maneuverability.
Andromedans: Extra-galactic Bad Guys. Fast, tough ships able to deliver a devastating close-range punch. Use technology unique to them including some bigger ships able to carry multiple smaller ships. Good maneuverability.
More to come...