GLS stands for General Logistics Systems, which is a logistics company based in Amsterdam, Netherlands. It is one of the largest parcel services providers in Europe, with a growing presence in North America. GLS offers parcel and freight delivery services. The company was founded in 1989 as German Parcel and was subsequently rebranded as GLS. GLS tracking refers to a network of technologies that are widely used by manufacturing and distribution companies to track outbound packages. GLS tracking depends on three key technologies: a small label with a unique 2D barcode, handheld scanners, and a central database. GLS tracking provides manufacturers with crucial visibility over the entire delivery process and keeps customers informed about when to expect delivery.