Position in a system
| system | Vitae - living organisms |
| domain | Bacteria (Haeckel, 1894) Woese, Kandler Wheelis, 1990 - bacterians |
| phylum | Firmicutes |
| class | Bacilli Ludwig et al., 2010 |
| order | Lactobacillales Ludwig et al., 2010 |
| family | Enterococcaceae |
| genus | Atopobacter Lawson, Foster, Falsen, Ohlén & Collins, 2000 |