Inditex

Spanish fashion retail conglomerate founded by Amancio Ortega — parent company of Zara, Pull&Bear, Massimo Dutti, Bershka, Stradivarius, Oysho — which became the world's largest fashion retailer through the fast fashion supply chain model.

Built the most efficient fast fashion supply chain in the world — proprietary manufacturing near Spain, vertical integration from design to retail, no wholesale — creating a model that was widely studied but difficult to replicate because it required radical proximity between design, manufacturing, and sales.