Ninkasi Brewing Company (US) has some vegan options

Company email (December 2015): "Based in Eugene, Oregon, Ninkasi Brewing, is an independent craft brewer producing a line-up of year-round Vegan, non-GMO beer offerings. With the exception of Noir, a coffee milk stout using milk sugar (lactose), every beer produced at Ninkasi is Vegan-friendly." Company email (2007): "None of our beers contain any animal products of any kind. If you consider the calcified shells of prehistoric creatures (Diatanaceous Earth) an animal product, it is used to filter the lagers (not Tricerahops), but it is really more of a mineral"