AKS Express Kurir is a Serbian courier founded in 2004 in Šabac, serving nationwide door‑to‑door deliveries with call‑center support and online tracking via its portal and website. The company operates regional depots across Serbia and offers scheduling by phone or web for businesses and individuals. Historically focused on domestic parcels, AKS expanded digital services through its AKS Portal for booking and tracking, improving transparency from pickup to proof‑of‑delivery.