Proxima Maintenance Yards

The Proxima shipyards were a Federation facility near the star Proxima Centauri. In the 24th century, the Proxima installation served primarily as a maintenance facility, and as of 2371 was under the command of Admiral Drazman. (DS9 episode: "Past Tense, Part I")

Mirror Universe
In the Mirror Universe, General Shran claimed that the rebels against the Terran Empire planned to attack the Proxima shipyards from the Devolin system in 2155. In reality, Shran invented this intelligence to lure the USS Defiant away from Earth. (ENT novel: Age of the Empress)