Asia-Places.com a répertorié environ 4 banques dans Dong Coï. Certains des mieux notés banques dans Dong Coï sont- Thuan Thanh Transaction Office - Bac Ninh Branch - Joint Stock Commercial Bank for Investment and Development of Vietnam (BIDV), Thuan Thanh Transaction Office - Bac Ninh Branch - Joint Stock Commercial Bank for Investment and Development of Vietnam (BIDV), Thuan Thanh Transaction Office - Bac Ninh Branch - Joint Stock Commercial Bank for Investment and Development of Vietnam (BIDV) & Thuan Thanh Transaction Office - Bac Ninh Branch - Joint Stock Commercial Bank for Investment and Development of Vietnam (BIDV).