Weyland-Yutani Corporation

The Weyland-Yutani Corporation was founded in 2012 by Peter Weyland when the company was then known as Weyland Corp. Some of the Company's notable achievements include finding a cure for cancer, FTL(Faster than light travel) or Interstellar travel, and creating Synthetic people, or "Artificial Person," Such as David8, Ash, Bishop, Samuels, and Call. The company consists of divisions, like the Weapons division, The Space division, and the medical division.

THE NOSTROMO INCIDENT
"The loss of The Nostromo and its Cargo cost the company a lot of money so it's really important to know what happened to it." -Nina Taylor in Alien Isolation.

As said above, the loss of the Nostromo cost Weyland-Yutani a lot of money. Weyland-Yutani sent Amanda Ripley, Nina Taylor, and Christoper Samuels to Sevastopol Station to retreive the Nostromo's newly found flight recorder found by the salvage vessel the Anesidora. Though Weyland-Yutani replaced the Nostromo's usual science officer with Weyland-Yutani Synthetic Robot ash right before the ship left Thedus. With the Company knowing of the derelict on the moon the company had the Nostromo checked to check it out. Weyland-Yutani had Ash protect the Alien on the ship so the Company could have it for the Weapons division.

SEVASTOPOL STATION BUY-OUT.
Two days after Amanda Ripley, Nina Taylor, and Christopher Samuels in 2137. left for Sevastopol Station, Weyland-Yutani Purchased Sevastopol (originally owned by Seegson corporation) learning about the Xenomorph on board, they gave the station's APOLLO Core order 939 which specifically states "Priority one - Protect specimen. Maintain station quarantine. Disallow communications. All other considerations secondary." Much like Special Order 937 Which includes "Crew Expendable."