Vector (ベクター, Bekutā?) is a fictional character in the Battle Angel Alita and Battle Angel Alita: Last Order manga by Yukito Kishiro and its anime adaptation. It is not known if Vector is his first name, surname, or an alias. Vector is a Scrapyard businessman who is the top broker in the Scrapyard’s illegal parts, specifically human body parts and organs. He is responsible for supplying Tiphares with one person’s worth of body parts and organs on a monthly basis, and also has a reputation for hiring powerful cyborg muscle to back him up.

Source: Wikipedia