| australia | queensland | thiobacillus denitrificans | species | 1 | 0 |
| canada | alberta | thiobacillus denitrificans | species | 175 | 0 |
| india | | thiobacillus denitrificans | species | 2 | 0 |
| united kingdom | | thiobacillus denitrificans dsm 12475 | no rank | 38 | 0 |
| vietnam | | thiobacillus denitrificans | species | 1 | 0 |