Amoeba looks to be a defunct company – their website somehow works, but not updated for long. A decade ago, they released some Scandium alloy aluminium frames, carbon fiber reinforced handlebars that were amazingly lightweight, at a really fair price.
It’ s a shame they did not release something worthy in the last years, but it is (was?) a brand that I liked very much. This Amoeba Vitra stem was my one of their favorite items: they’re cheap, robust and comes with a nice sack.