The Antares shipyards was a Federation construction facility in the 23rd and 24th centuries. Among the ships constructed at the Antares shipyards were the USS Enterprise (NCC-1701-B), USS Defiant, USS Mercutio and USS Valiant (NCC-74210).
- This information comes from the dedication plaques of these individual ships. See the Memory Alpha article cited below for additional information.
In the Mirror Universe, the Antares shipyards was a construction facility of the Imperial Starfleet of the Terran Empire. The ISS Imperator was designed and built at the Antares shipyards, and soon after the ship's completion, the shipyards were the target of a massive attack by alien rebels, ensuring the Imperator would be the last ship of its class. (ENT novel: Age of the Empress)