Website: https://qarbi.com/services/multi-vendor-marketplace/. Qarbi Studio is the delivery partner behind the Ultracommerce marketplace platform — powering multi-vendor marketplaces across 15 industries. We build scalable marketplace systems that support vendor onboarding, split-order fulfillment, and commission complexity that standard platforms can’t handle. Phone: 0837 515 168. Address: Công ty TNHH Qarbi, Đ Phan Kế Toại, KĐT Tây Bắc Lê Lợi, P Đồng Hới.