Core Courier Service operated as a delivery entity in the eras of both the Galactic Empire and the New Republic, providing service to the Galactic Core region. Notably, Taryn Clancy, who captained the starship Messenger, worked for them. In the year 10 ABY, Clancy successfully bypassed the Imperial blockade surrounding Coruscant to deliver a crucial datacard to the New Republic Fleet. Following this event, Del Sato, Clancy's co-pilot and also an employee of Core Courier Service, chose to retire.