Twelve Starfleets

Starfleet Military
Battleship
Cruiser
Destroyer
Corvette

Starfleet Operations
Supercarrier
Carrier
Supply Ship
Tug

Starfleet Stations
Stardock
Shipyard
Station
Outpost

Starfleet Police-Guard
Hospital Ship
Rescue Ship
Police Cruiser
Patrol Boat

Starfleet Exploration
Base-Ship
Cruiser
Frigate
Runabout

Starfleet Mining
Base-Ship
Ore Freighter
Mining Yard
Workbee

Starfleet Colonization
Colony Ship
Supply Freighter
“Pop-up” Station
Towbee

Starfleet Research-Experimental
Base-Ship
Dreadnought
Experimental Cruiser
Surveyor

Starfleet Licensed Trade
Superfreighter
Freighter
Merchantman
Tug

Starfleet Trade Escort
Escort Cruiser
Escort Frigate
Escort Corvette
Escort Fighter

Starfleet Rescue
Hospital Ship
Rescue Ship
Medical Ship
Ambulance Runabout

Starfleet Infrastructure-Scrapping
Scrapping Station
Salvage Cruiser
Surveyor
Runabout