Yutani Corporation was a Japanese corporation that existed in the 21st century. In December 12, 2029, the Yutani Corporation had filed a lawsuit against the British corporation, Weyland Corp, over a patent dispute with the David series. Weyland won the David patent lawsuit years later.
Sometime after Project Prometheus and the death of Peter Weyland, Weyland Corp would acquire the Yutani Corporation thus forming the Weyland-Yutani Corporation.