The New Imperium Starfleet saw many different incarnations, organizations and structures over the years. Originally, each member fleet had autonomy over their own fleets and forces, and answered only to the NI Senate. Later, when the groups were integrated into one government, the NI Starfleet was created, with two fleets and six task forces. However, these task forces were still generally kept in the same groups as their former organizations held them, and maintained the same fleet commanders.
After the Battle of Varnus, the fleet was reorganized once again. The First Fleet had been wiped out at Varnus, and two of the former fleet commanders, admirals Majere and Shok'fer, lead many of their former forces away from Epsilon Sector, along with those who desired to fleet the seemingly endless war that the Altarin'Dakor had wrought upon them. Also, with the addition of Titan-class Battleships formerly belonging to the Shok'Thola Nimrod, the overall fleet strength of the New Imperium increased greatly, though this move also introduced large amounts of strife and enmity between the Altarin'Dakor and New Imperial elements. A single fleet was created, with three task forces, each led by one of Nimrod's former command ships.
The most up-to-date order of battle for the New Imperium Navy is listed below (current as of the story Remembrance).
NI Order of Battle By Ship Class[]
Task Force Crusader[]
Flagship: Titan-class Battleship Grand Crusader
Allegiance-class SD Ravenspyre
World Devastator(WLD) Pillager 9
MJT Scimitar
ISD-3 Vindicator
ISD Crusader
ISD Dragoon II
INT Permanence
INT Scharnhorst
VSD Firestorm
VSD Warspite
FRG Lazarett
CRK Pursuer
CRK Defender
ESC Tuscon
ESC Hawk's Nest
A/FRG Sunfire
Task Force Cataclysm[]
Flagship: Titan-class Battleship Cataclysm
ISD-II Crimson Knight
ISD-II Star Fire
ISD-II Stalker
ISD War Hammer
ISD Revenant
ISD Phoenix
VSD-II Voyager
INT Trapper
INT Fate
M/FRG Bloodstar II
FRG Skene
STRKC Phalanx
CRK Mauler
CRK Belfast
Task Force Ascendancy[]
Flagship: Titan-class Battleship Ascendancy
MC-120 Darkstar
M/ISD II Stormwatch
ISD Red Horizon
ISD Majesty
VSD Raider (Kaav'Klan Empire - NI Allies)
VSD Britannia
VSD Grandeur
INT Hindrance
INT Obstructor
MC-60 Triumphant
MC-60 Traktion
L/FRG Red Nebula
M/FRG Hood
M/FRG Lading
M/FRG Impel
FRG Lord Gita
FRG Sieve
FRG Shroud
STRKC Longbow
STRKC Creon
STRKC Vagabond
STRKC Vagrant
CRK Brandt
CRK Bravado
CRK Courier
CRK Jennet
DREAD Galthain
DGN Lord Keto