The Ouroboros Branch (ウロボロス支社 Uroborosu Shisha), also translated as Uroboros Branch and referred to as S.M.S. Ouroboros, is a satellite branch of the Strategic Military Services (S.M.S.) on the planet Ouroboros.
The S.M.S. Ouroboros headquarters are aboard the Northampton-class Gefion, stationed in the fringe frontier world of Ouroboros. It was originally part of a long distance fleet, led by the SDFN-8 General Vrlitwhai Kridanik. The current head of the organization is mechanical genius Aisha Blanchette. They would later pioneer the development of the YF-30 Chronos.