From my recent trip to Vietnam, I've realised that there are alot of emerging brands in Vietnam. Here are my list of some of them.
Trung Nguyen - coffee (domestic consumption and export all over the world). They have hundreds of stores and cafe's under their name.
MobiFone - Telecommunication, currently Vietnam's largest telecommunication provider and have the most mobile phone subscribers.
Viet Tien - Clothing and textile, massive massive business selling ordinary to upscale clothing.
Vissan - Foodstuff manufacturer.
Vifon- Another foodstuff manufacturer.
NinoMaxx - Most popular clothing brand in Vietnam, and its Vietnamese
PT2000 - Also very popular clothing brand. you can see up to or more than 10 "ZN" shirts worn in Saigon in any given day.
There should be more. May I say good luck to them. Hope one day I'll be able to see them all over the world.