Brand Finance and the Vietnam Mibrand Consultancy Company announced the list at a ceremony in Hanoi on Tuesday.
Viettel is followed by the Vietnam Post and Telecommunication (VNPT), and the Vietnam Dairy Joint Stock Company (Vinamilk). Brand Finance is the world's leading brand evaluation firm and is headquartered in the UK. Its brand evaluation results are published annually in international media, such as The Banker, BBC, CNN, CNBC, Bloomberg, The Economist, and The Wall Street Journal.