| antarctica | | hydrogenophaga sp. pamc20947 | species | 1 | 0 |
| antarctica | | hydrogenophaga sp. r-38517 | species | 1 | 0 |
| argentina | | hydrogenophaga sp. at08-09 | species | 1 | 0 |
| argentina | | hydrogenophaga sp. at12-08 | species | 1 | 0 |
| argentina | salta province | hydrogenophaga sp. st13 | species | 1 | 0 |
| australia | | uncultured hydrogenophaga sp. | species | 12 | 0 |
| australia | new south wales | uncultured hydrogenophaga sp. | species | 2 | 0 |
| australia | queensland | uncultured hydrogenophaga sp. | species | 1 | 0 |
| bangladesh | chittagong division | hydrogenophaga sp. enrichment culture | species | 16 | 0 |
| belgium | | hydrogenophaga sp. pbl-h3 | species | 1 | 0 |
| belgium | flemish region | hydrogenophaga electricum | species | 2 | 0 |
| belgium | flemish region | hydrogenophaga sp. | species | 2 | 0 |
| belgium | walloon region | hydrogenophaga sp. pbl-h3 | species | 14 | 0 |
| brazil | | hydrogenophaga bisanensis | species | 3 | 0 |
| brazil | | uncultured hydrogenophaga sp. | species | 3 | 0 |
| brazil | maranhao | hydrogenophaga sp. | species | 2 | 0 |
| canada | | hydrogenophaga sp. | species | 3 | 0 |
| canada | | hydrogenophaga sp. s7-11 | species | 1 | 0 |
| canada | alberta | hydrogenophaga | genus | 0 | 1 |
| canada | alberta | hydrogenophaga sp. | species | 2 | 0 |
| canada | ontario | uncultured hydrogenophaga sp. | species | 1 | 0 |
| canada | quebec | hydrogenophaga sp. ca7-3j04 | species | 1 | 0 |
| canada | saskatchewan | hydrogenophaga sp. cdmm | species | 1 | 0 |
| canada | saskatchewan | hydrogenophaga sp. cdmn | species | 1 | 0 |
| chile | | hydrogenophaga sp. qzs2_3 | species | 1 | 0 |
| china | | hydrogenophaga atypica | species | 1 | 0 |
| china | | hydrogenophaga intermedia | species | 6 | 0 |
| china | | hydrogenophaga luteola | species | 2 | 0 |
| china | | hydrogenophaga palleronii | species | 1 | 0 |
| china | | hydrogenophaga pseudoflava | species | 5 | 0 |
| china | | hydrogenophaga sp. | species | 3 | 0 |
| china | | hydrogenophaga sp. 4-cba | species | 2 | 0 |
| china | | hydrogenophaga sp. ama29 | species | 1 | 0 |
| china | | hydrogenophaga sp. chr-40 | species | 1 | 0 |
| china | | hydrogenophaga sp. era30 | species | 1 | 0 |
| china | | hydrogenophaga sp. h7 | species | 42 | 0 |
| china | | hydrogenophaga sp. njust34 | species | 1 | 0 |
| china | | hydrogenophaga sp. t19(2011) | species | 1 | 0 |
| china | | hydrogenophaga sp. thg-sqe4 | species | 1 | 0 |
| china | | uncultured hydrogenophaga sp. | species | 21 | 0 |
| china | beijing | hydrogenophaga sp. | species | 1 | 0 |
| china | guangdong | hydrogenophaga sp. 6a9n6 | species | 1 | 0 |
| china | hebei | hydrogenophaga sp. f22(2011) | species | 1 | 0 |
| china | hebei | hydrogenophaga sp. p15(2011) | species | 1 | 0 |
| china | hebei | hydrogenophaga sp. p3(2011) | species | 1 | 0 |
| china | heilongjiang | uncultured hydrogenophaga sp. | species | 1 | 0 |
| china | hubei | uncultured hydrogenophaga sp. | species | 1 | 0 |
| china | hunan | uncultured hydrogenophaga sp. | species | 4 | 0 |
| china | jiangsu | hydrogenophaga sp. | species | 1 | 0 |
| china | jiangsu | uncultured hydrogenophaga sp. | species | 1 | 0 |
| china | qinghai | hydrogenophaga sp. xt-n8 | species | 1 | 0 |
| china | shandong | hydrogenophaga sp. slg210a2-35-2 | species | 2 | 0 |
| china | sichuan | hydrogenophaga sp. ama29 | species | 1 | 0 |
| china | sichuan | hydrogenophaga sp. era30 | species | 1 | 0 |
| china | sichuan | uncultured hydrogenophaga sp. | species | 1 | 0 |
| china | tibet | uncultured hydrogenophaga sp. | species | 4 | 0 |
| china | xinjiang | hydrogenophaga sp. sm460-4 | species | 1 | 0 |
| china | yunnan | hydrogenophaga sp. th204 | species | 1 | 0 |
| china | yunnan | hydrogenophaga sp. th205 | species | 1 | 0 |
| cuba | | uncultured hydrogenophaga sp. | species | 1 | 0 |
| cyprus | | hydrogenophaga sp. x3c | species | 1 | 0 |
| denmark | | hydrogenophaga sp. enrichment culture clone lpl1-271 | species | 1 | 0 |
| denmark | capital region of denmark | hydrogenophaga sp. | species | 2 | 0 |
| estonia | | hydrogenophaga sp. 1/4_c16_62 | species | 1 | 0 |
| estonia | jarva county | hydrogenophaga sp. 1/4_c16_62 | species | 1 | 0 |
| ethiopia | | uncultured hydrogenophaga sp. | species | 3 | 0 |
| france | | uncultured hydrogenophaga sp. | species | 1 | 0 |
| germany | | hydrogenophaga intermedia | species | 120 | 0 |
| germany | | hydrogenophaga sp. | species | 1 | 0 |
| germany | | hydrogenophaga sp. lpb0072 | species | 1 | 0 |
| germany | lower saxony | hydrogenophaga sp. schreyahn_aob_aster_kultur_1 | species | 1 | 0 |
| greece | | hydrogenophaga sp. | species | 2 | 0 |
| hong kong | | hydrogenophaga sp. | species | 1 | 0 |
| hungary | | hydrogenophaga sp. | species | 1 | 0 |
| hungary | | hydrogenophaga taeniospiralis | species | 2 | 0 |
| hungary | bacs-kiskun county | hydrogenophaga sp. kb18 | species | 1 | 0 |
| hungary | bacs-kiskun county | uncultured hydrogenophaga sp. | species | 5 | 0 |
| hungary | budapest | hydrogenophaga | genus | 0 | 1 |
| hungary | budapest | hydrogenophaga pseudoflava | species | 1 | 0 |
| hungary | fejer county | uncultured hydrogenophaga sp. | species | 1 | 0 |
| iceland | | hydrogenophaga sp. | species | 1 | 0 |
| india | | hydrogenophaga atypica | species | 3 | 0 |
| india | | hydrogenophaga bisanensis | species | 2 | 0 |
| india | | hydrogenophaga intermedia | species | 2 | 0 |
| india | | hydrogenophaga sp. aldss-10 | species | 1 | 0 |
| india | | hydrogenophaga sp. bab-3565 | species | 1 | 0 |
| india | | hydrogenophaga sp. jbp-18 | species | 1 | 0 |
| india | | hydrogenophaga sp. jbs-25 | species | 1 | 0 |
| india | | hydrogenophaga sp. s2 | species | 1 | 0 |
| india | | uncultured hydrogenophaga sp. | species | 4 | 0 |
| india | haryana | uncultured hydrogenophaga sp. | species | 1 | 0 |
| india | maharashtra | hydrogenophaga sp. | species | 1 | 0 |
| india | meghalaya | hydrogenophaga sp. wmf-8 | species | 1 | 0 |
| india | meghalaya | uncultured hydrogenophaga sp. | species | 3 | 0 |
| india | tamil nadu | hydrogenophaga sp. pml113 | species | 90 | 0 |
| india | uttar pradesh | hydrogenophaga sp. | species | 1 | 0 |
| india | uttar pradesh | uncultured hydrogenophaga sp. | species | 3 | 0 |
| india | west bengal | hydrogenophaga sp. cas4014i | species | 1 | 0 |
| india | west bengal | hydrogenophaga sp. kas3-r10 | species | 1 | 0 |
| india | west bengal | hydrogenophaga sp. kas3-r15 | species | 1 | 0 |
| india | west bengal | uncultured hydrogenophaga sp. | species | 1 | 0 |
| iran | | hydrogenophaga sp. dw653 | species | 1 | 0 |
| israel | | hydrogenophaga sp. d11-24b2 | species | 1 | 0 |
| israel | | hydrogenophaga sp. d3-13_1 | species | 1 | 0 |
| italy | | hydrogenophaga intermedia | species | 2 | 0 |
| italy | | uncultured hydrogenophaga sp. | species | 1 | 0 |
| italy | lazio region | hydrogenophaga sp. at5 | species | 1 | 0 |
| japan | | hydrogenophaga sp. | species | 23 | 0 |
| japan | | hydrogenophaga sp. sa_12 | species | 1 | 0 |
| japan | akita prefecture | hydrogenophaga sp. | species | 1 | 0 |
| japan | hokkaido prefecture | hydrogenophaga electricum | species | 2 | 0 |
| japan | hokkaido prefecture | uncultured hydrogenophaga sp. | species | 4 | 0 |
| japan | hyogo prefecture | hydrogenophaga sp. nl121 | species | 1 | 0 |
| japan | ibaraki prefecture | hydrogenophaga sp. ah-24 | species | 1 | 0 |
| japan | kanagawa prefecture | uncultured hydrogenophaga sp. | species | 1 | 0 |
| japan | shizuoka prefecture | hydrogenophaga sp. iso11-50 | species | 1 | 0 |
| japan | shizuoka prefecture | hydrogenophaga taeniospiralis | species | 3 | 0 |
| japan | shizuoka prefecture | uncultured hydrogenophaga sp. | species | 8 | 0 |
| japan | yamanashi prefecture | hydrogenophaga sp. | species | 1 | 0 |
| kenya | rift valley province | uncultured hydrogenophaga sp. | species | 16 | 0 |
| kuwait | | uncultured hydrogenophaga sp. | species | 2 | 0 |
| lithuania | | uncultured hydrogenophaga sp. | species | 1 | 0 |
| malaysia | | hydrogenophaga defluvii | species | 1 | 0 |
| malaysia | | hydrogenophaga intermedia | species | 1 | 0 |
| malaysia | johor | hydrogenophaga sp. pbc | species | 2 | 0 |
| mexico | | hydrogenophaga sp. | species | 1 | 0 |
| mexico | | uncultured hydrogenophaga sp. | species | 5 | 0 |
| mexico | yucatan | uncultured hydrogenophaga sp. | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac100p | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac108 | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac120 | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac140p | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac142p | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac19p | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac20 | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac306 | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac30p | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac31p | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac55p | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac56p | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac57 | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac90 | species | 1 | 0 |
| netherlands | | hydrogenophaga sp. bac93p | species | 1 | 0 |
| nigeria | | uncultured hydrogenophaga sp. | species | 3 | 0 |
| norway | oslo county | hydrogenophaga sp. ibvhs1 | species | 8 | 0 |
| norway | oslo county | hydrogenophaga sp. ibvhs2 | species | 22 | 0 |
| norway | svalbard | hydrogenophaga sp. h | species | 1 | 0 |
| norway | svalbard | uncultured hydrogenophaga sp. | species | 1 | 0 |
| pakistan | balochistan province | hydrogenophaga sp. nccp-1259 | species | 1 | 0 |
| pakistan | balochistan province | hydrogenophaga sp. nccp-1338 | species | 1 | 0 |
| poland | | hydrogenophaga taeniospiralis | species | 1 | 0 |
| poland | | uncultured hydrogenophaga sp. | species | 2 | 0 |
| portugal | | hydrogenophaga pseudoflava | species | 1 | 0 |
| portugal | | hydrogenophaga sp. 7a-385 | species | 1 | 0 |
| portugal | | hydrogenophaga sp. 7b-224 | species | 1 | 0 |
| portugal | | hydrogenophaga sp. a1-47 | species | 1 | 0 |
| portugal | | hydrogenophaga sp. sbr5 | species | 1 | 0 |
| portugal | | hydrogenophaga sp. sbr8 | species | 1 | 0 |
| portugal | | hydrogenophaga sp. sbr9 | species | 1 | 0 |
| romania | | hydrogenophaga sp. | species | 3 | 0 |
| romania | bihor county | uncultured hydrogenophaga sp. | species | 1 | 0 |
| russia | | hydrogenophaga sp. enrichment culture | species | 1 | 0 |
| russia | | uncultured hydrogenophaga sp. | species | 1 | 0 |
| russia | krasnoyarsk krai | uncultured hydrogenophaga sp. | species | 8 | 0 |
| russia | novosibirsk oblast | uncultured hydrogenophaga sp. | species | 1 | 0 |
| serbia | | hydrogenophaga sp. | species | 4 | 0 |
| singapore | | hydrogenophaga sp. sg63 | species | 1 | 0 |
| singapore | | hydrogenophaga sp. sg64 | species | 1 | 0 |
| singapore | | uncultured hydrogenophaga sp. | species | 3 | 0 |
| south africa | | hydrogenophaga caeni | species | 2 | 0 |
| south africa | | hydrogenophaga pseudoflava | species | 3 | 0 |
| south africa | | uncultured hydrogenophaga sp. | species | 1 | 0 |
| south africa | eastern cape province | hydrogenophaga pseudoflava | species | 1 | 0 |
| south africa | the western cape province | hydrogenophaga sp. | species | 1 | 0 |
| south korea | | hydrogenophaga soli | species | 1 | 0 |
| south korea | | hydrogenophaga sp. gsoil 1545 | species | 1 | 0 |
| south korea | | hydrogenophaga sp. lpb0072 | species | 95 | 0 |
| south korea | | hydrogenophaga sp. mr22 | species | 1 | 0 |
| south korea | | hydrogenophaga sp. thg-dn5.8 | species | 1 | 0 |
| south korea | | hydrogenophaga sp. trs-05 | species | 1 | 0 |
| south korea | | hydrogenophaga temperata | species | 2 | 0 |
| spain | | hydrogenophaga intermedia | species | 1 | 0 |
| spain | | hydrogenophaga palleronii | species | 1 | 0 |
| spain | | hydrogenophaga sp. | species | 2 | 0 |
| spain | | hydrogenophaga sp. a3a-4 | species | 1 | 0 |
| spain | | uncultured hydrogenophaga sp. | species | 1 | 0 |
| spain | andalusia | uncultured hydrogenophaga sp. | species | 1 | 0 |
| spain | cantabria | hydrogenophaga sp. balt-12-s2.1 | species | 1 | 0 |
| spain | valencia | hydrogenophaga palleronii | species | 1 | 0 |
| spain | valencia | hydrogenophaga sp. | species | 1 | 0 |
| svalbard and jan mayen | | uncultured hydrogenophaga sp. | species | 1 | 0 |
| svalbard and jan mayen | svalbard | hydrogenophaga sp. h | species | 1 | 0 |
| switzerland | | hydrogenophaga palleronii | species | 1 | 0 |
| switzerland | | hydrogenophaga sp. eecy4 | species | 1 | 0 |
| switzerland | ticino region | uncultured hydrogenophaga sp. | species | 1 | 0 |
| thailand | | hydrogenophaga sp. | species | 1 | 0 |
| tunisia | | uncultured hydrogenophaga sp. | species | 1 | 0 |
| tunisia | tataouine governorate | hydrogenophaga | genus | 0 | 1 |
| turkey | | hydrogenophaga sp. | species | 2 | 0 |
| united kingdom | | hydrogenophaga sp. | species | 1 | 0 |
| united kingdom | | hydrogenophaga sp. pd1 | species | 1 | 0 |
| united kingdom | | hydrogenophaga sp. rs71 | species | 1 | 0 |
| united kingdom | | uncultured hydrogenophaga sp. | species | 1 | 0 |
| united kingdom | england | hydrogenophaga defluvii | species | 1 | 0 |
| united states | | hydrogenophaga intermedia | species | 152 | 0 |
| united states | | hydrogenophaga sp. | species | 1 | 0 |
| united states | | hydrogenophaga sp. ce11 | species | 1 | 0 |
| united states | | hydrogenophaga sp. ce12 | species | 1 | 0 |
| united states | | hydrogenophaga sp. ce15 | species | 1 | 0 |
| united states | | hydrogenophaga sp. ce16 | species | 1 | 0 |
| united states | | hydrogenophaga sp. ce2 | species | 1 | 0 |
| united states | | hydrogenophaga sp. ce5 | species | 1 | 0 |
| united states | | hydrogenophaga sp. ce6 | species | 1 | 0 |
| united states | | hydrogenophaga sp. ce9 | species | 1 | 0 |
| united states | | hydrogenophaga sp. enrichment culture | species | 4 | 0 |
| united states | | hydrogenophaga taeniospiralis | species | 1 | 0 |
| united states | | uncultured hydrogenophaga sp. | species | 3 | 0 |
| united states | arizona | hydrogenophaga sp. kc-it-ss2 | species | 1 | 0 |
| united states | california | hydrogenophaga | genus | 0 | 2 |
| united states | california | hydrogenophaga sp. | species | 4 | 0 |
| united states | california | hydrogenophaga sp. htcc329 | species | 1 | 0 |
| united states | colorado | hydrogenophaga sp. | species | 9 | 0 |
| united states | georgia | uncultured hydrogenophaga sp. | species | 38 | 0 |
| united states | idaho | hydrogenophaga sp. idsbo-1 | species | 2 | 0 |
| united states | massachusetts | uncultured hydrogenophaga sp. | species | 2 | 0 |
| united states | michigan | hydrogenophaga sp. | species | 2 | 0 |
| united states | new york | hydrogenophaga | genus | 0 | 1 |
| united states | new york | hydrogenophaga sp. | species | 2 | 0 |
| united states | north dakota | hydrogenophaga sp. nds_0-11 | species | 1 | 0 |
| united states | oklahoma | hydrogenophaga sp. | species | 2 | 0 |
| united states | washington | hydrogenophaga sp. rac07 | species | 2 | 0 |