The species are chemoorganotrophs and strictly anaerobic.

[1] They are found in rumens of animals such as cattle and in feces of other animals, rodents, and humans.

Oxalobacter species have also been isolated from marine sources, including from fresh water samples.

[1] These bacteria are characterized by their ability to metabolize oxalate.

This Betaproteobacteria-related article is a stub.