Armstrong was yesterday charged by the United States Anti-Doping Authority (USADA) with six offences, including taking banned substances and administering drugs to teammates.
This morning Nike said it was standing behind Armstrong and now AB InBev is following suit.
Paul Chibe, vice president of US marketing at Anheuser-Busch, today said: "Our current relationship with Lance remains unchanged".
AB InBev has previously said Armstrong would continue to be a spokesman for its beer Michelob Ultra, with Chibe saying, "He has inspired millions with his athletic achievement and his commitment to helping cancer survivors and their families."Follow @johnreynolds10