- Abiotrophia
- Achromobacter
- Acidaminococcus
- Acidovorax
- Acinetobacter
- Actinobacillus
- Actinomyces
- Aerococcus
- Aeromonas
- Aggregatibacter
- Alcaligenes
- Alicyclobacillus
- Anaerococcus
- Arcanobacterium
- Azotobacter
- Bacillus
- Bacteroides
- Bartonella
- Bergeyella
- Bilophila
- Bordetella
- Borrelia
- Brevibacterium
- Brucella
- Burkholderia
- Campylobacter
- Candida
- Capnocytophaga
- Cardiobacterium
- Cedecea
- Cellulomonas
- Chromobacterium
- Citrobacter
- Clostridioides
- Clostridium
- Comamonas
- Corynebacterium
- Cronobacter
- Cryptococcus
- Cupriavidus
- Cutibacterium
- Edwardsiella
- Eikenella
- Elizabethkingia
- Enterobacter
- Enterococcus
- Erysipelothrix
- Escherichia
- Eubacterium
- Exiguobacterium