Bu Dari Sernug, or Black Sky Industries in Anglic, is a major starship construction firm based in Deneb. It's tagline is Engineering Beyond the Stars, and it is known for taking on the biggest, most impressive projects that are available. Often to great success.

It was formed in 927, at Vincennes / Vincennes Subsector / Deneb / 1122, initially just building generic starships but rapidly growing to take on bigger projects. It now has a presence at many class A starports across both Deneb and the Trojan Reach.