There are two options for travellers to get their business visas to Vietnam:
Apply for a visa at the local embassy
Business travellers are advised to contact the embassy to obtain a business visa to Vietnam beforehand, the procedures vary from embassy to embassy, please contact the embassy directly for the required forms and detailed procedures. The embassy may require a sponsor letter from a business partner in Vietnam.
Apply for a business visa on arrival
It is possible to apply for a maximum of 6 month multiple entry visa on arrival for business purposes with no special documents required. Please check out Vietnamvisa.com website for procedures and prices for business visa.