| argentina | | azospirillum brasilense | species | 5 | 0 |
| argentina | buenos aires province | azospirillum brasilense | species | 2 | 0 |
| argentina | cordoba province | azospirillum | genus | 0 | 1 |
| argentina | cordoba province | azospirillum brasilense | species | 23 | 0 |
| argentina | entre rios province | azospirillum | genus | 0 | 1 |
| argentina | jujuy province | azospirillum sp. mf52 | species | 1 | 0 |
| argentina | tucuman province | azospirillum | genus | 0 | 1 |
| argentina | tucuman province | azospirillum brasilense | species | 555 | 0 |
| australia | | azospirillum sp. mm-17 | species | 1 | 0 |
| australia | new south wales | azospirillum | genus | 0 | 1 |
| australia | new south wales | azospirillum brasilense | species | 0 | 1 |
| australia | western australia | azospirillum | genus | 0 | 1 |
| brazil | | azospirillum brasilense | species | 1859 | 0 |
| brazil | | azospirillum brasilense fp2 | no rank | 828 | 0 |
| brazil | | azospirillum brasilense sp245 | no rank | 2 | 0 |
| brazil | | azospirillum formosense | species | 38 | 0 |
| brazil | | azospirillum lipoferum | species | 32 | 0 |
| brazil | | azospirillum melinis | species | 4 | 0 |
| brazil | | azospirillum oryzae | species | 9 | 0 |
| brazil | | azospirillum sp. | species | 25 | 0 |
| brazil | | azospirillum sp. 1a-2.1.1 | species | 1 | 0 |
| brazil | | azospirillum sp. 1a-2c | species | 1 | 0 |
| brazil | | azospirillum sp. 1a-3.1 | species | 1 | 0 |
| brazil | | azospirillum sp. 1r-2 | species | 1 | 0 |
| brazil | | azospirillum sp. 1r-2cr | species | 1 | 0 |
| brazil | | azospirillum sp. 2a-1.1 | species | 1 | 0 |
| brazil | | azospirillum sp. 2a-2c | species | 1 | 0 |
| brazil | | azospirillum sp. 2a-3.1.1 | species | 1 | 0 |
| brazil | | azospirillum sp. 3a-2 | species | 1 | 0 |
| brazil | | azospirillum sp. 3r-2 branca | species | 1 | 0 |
| brazil | | azospirillum sp. 3r-2 cr | species | 1 | 0 |
| brazil | | azospirillum sp. 3r-2.1 | species | 1 | 0 |
| brazil | | azospirillum sp. 3r-2c | species | 1 | 0 |
| brazil | | azospirillum sp. 3r-3 | species | 1 | 0 |
| brazil | | azospirillum sp. ala | species | 1 | 0 |
| brazil | | azospirillum sp. enrichment culture clone pn2_1.2 | species | 1 | 0 |
| brazil | | azospirillum sp. jc1-4 | species | 1 | 0 |
| brazil | | azospirillum sp. jc1-4 mr | species | 1 | 0 |
| brazil | | azospirillum sp. jc1-4.1 amarelo | species | 1 | 0 |
| brazil | | azospirillum sp. jc1-4.1 branco | species | 1 | 0 |
| brazil | | azospirillum sp. jc1-4.ma | species | 1 | 0 |
| brazil | | nitrospirillum amazonense | species | 84 | 0 |
| brazil | | nitrospirillum amazonense y2 | no rank | 2030 | 0 |
| brazil | amazonas | azospirillum melinis | species | 1 | 0 |
| brazil | parana | uncultured azospirillum sp. | species | 4 | 0 |
| brazil | pernambuco | azospirillum brasilense | species | 1 | 0 |
| brazil | pernambuco | azospirillum lipoferum | species | 3 | 0 |
| brazil | rio de janeiro | azospirillum brasilense | species | 0 | 1 |
| brazil | rio de janeiro | azospirillum brasilense sp245 | no rank | 7 | 0 |
| brazil | rio grande do sul | azospirillum brasilense sp245 | no rank | 1 | 0 |
| brazil | rio grande do sul | nitrospirillum amazonense cbamc | no rank | 703 | 0 |
| brazil | sao paulo | azospirillum brasilense | species | 1 | 0 |
| brazil | sao paulo | uncultured azospirillum sp. | species | 1 | 0 |
| cameroon | | azospirillum brasilense | species | 1 | 0 |
| canada | | azospirillum sp. | species | 6 | 0 |
| canada | | azospirillum sp. s4-09 | species | 1 | 0 |
| canada | | azospirillum zeae | species | 2 | 0 |
| canada | alberta | azospirillum sp. | species | 1 | 0 |
| canada | new brunswick | uncultured azospirillum sp. | species | 1 | 0 |
| canada | quebec | azospirillum sp. | species | 2 | 0 |
| canada | saskatchewan | azospirillum sp. cdmb | species | 1 | 0 |
| chile | | azospirillum sp. at04-05 | species | 1 | 0 |
| china | | azospirillum brasilense | species | 19 | 0 |
| china | | azospirillum lipoferum | species | 1 | 0 |
| china | | azospirillum melinis | species | 1 | 0 |
| china | | azospirillum sp. | species | 3 | 0 |
| china | | azospirillum sp. ccbau 10975 | species | 1 | 0 |
| china | | azospirillum sp. cfh 70021 | species | 2 | 0 |
| china | | azospirillum sp. hu33 | species | 1 | 0 |
| china | | azospirillum sp. mixed culture j4-32 | species | 1 | 0 |
| china | | azospirillum sp. mixed culture j4-38 | species | 1 | 0 |
| china | | niveispirillum irakense | species | 1 | 0 |
| china | | uncultured azospirillum sp. | species | 46 | 0 |
| china | beijing | azospirillum | genus | 0 | 1 |
| china | beijing | azospirillum brasilense | species | 1 | 0 |
| china | fujian | uncultured azospirillum sp. | species | 1 | 0 |
| china | guangdong | azospirillum humicireducens | species | 14 | 0 |
| china | guangdong | uncultured azospirillum sp. | species | 1 | 0 |
| china | hubei | uncultured azospirillum sp. | species | 1 | 0 |
| china | hunan | uncultured azospirillum sp. | species | 4 | 0 |
| china | jiangsu | azospirillum sp. cat2-1 | species | 1 | 0 |
| china | jiangsu | uncultured azospirillum sp. | species | 2 | 0 |
| china | shandong | azospirillum lipoferum | species | 1 | 0 |
| china | sichuan | azospirillum sp. opb1 | species | 1 | 0 |
| china | sichuan | uncultured azospirillum sp. | species | 1 | 0 |
| china | yunnan | azospirillum sp. cfh 70021 | species | 18 | 0 |
| china | yunnan | azospirillum sp. th16 | species | 7 | 0 |
| china | zhejiang | azospirillum | genus | 0 | 1 |
| china | zhejiang | azospirillum sp. opb1 | species | 1 | 0 |
| colombia | | azospirillum brasilense | species | 254 | 0 |
| colombia | | azospirillum sp. | species | 1 | 0 |
| egypt | | azospirillum brasilense | species | 1 | 0 |
| finland | | azospirillum sp. akb-2008-jo50 | species | 1 | 0 |
| finland | | azospirillum sp. akb-2008-ku2 | species | 1 | 0 |
| finland | | azospirillum sp. akb-2008-te21 | species | 1 | 0 |
| france | | azospirillum brasilense | species | 2 | 0 |
| france | | azospirillum sp. | species | 1 | 0 |
| germany | bavaria | azospirillum doebereinerae | species | 3 | 0 |
| germany | thuringen | azospirillum sp. 11679887 | species | 1 | 0 |
| greece | | azospirillum brasilense | species | 78 | 0 |
| greece | | azospirillum zeae | species | 31 | 0 |
| hungary | | azospirillum brasilense | species | 4 | 0 |
| hungary | | azospirillum lipoferum | species | 1 | 0 |
| hungary | | azospirillum thiophilum | species | 3 | 0 |
| hungary | | candidatus azospirillum massiliensis | species | 2 | 0 |
| india | | azospirillum brasilense | species | 18 | 0 |
| india | | azospirillum canadense | species | 2 | 0 |
| india | | azospirillum fermentarium | species | 2 | 0 |
| india | | azospirillum formosense | species | 11 | 0 |
| india | | azospirillum humicireducens | species | 4 | 0 |
| india | | azospirillum lipoferum | species | 7 | 0 |
| india | | azospirillum melinis | species | 4 | 0 |
| india | | azospirillum oryzae | species | 4 | 0 |
| india | | azospirillum rugosum | species | 1 | 0 |
| india | | azospirillum sp. | species | 17 | 0 |
| india | | azospirillum sp. aau a-1 | species | 1 | 0 |
| india | | azospirillum sp. az6274 | species | 1 | 0 |
| india | | azospirillum sp. hp3-c4 | species | 1 | 0 |
| india | | azospirillum sp. i54 | species | 1 | 0 |
| india | | azospirillum sp. sbc38 | species | 1 | 0 |
| india | | azospirillum sp. scpsbv4 | species | 1 | 0 |
| india | | azospirillum thiophilum | species | 3 | 0 |
| india | | azospirillum zeae | species | 1 | 0 |
| india | | uncultured azospirillum sp. | species | 14 | 0 |
| india | assam | nitrospirillum amazonense | species | 1 | 0 |
| india | bihar | azospirillum sp. lpmm-1 | species | 1 | 0 |
| india | bihar | azospirillum sp. lpmm-2 | species | 1 | 0 |
| india | gujarat | azospirillum brasilense | species | 2 | 0 |
| india | gujarat | azospirillum sp. ili-s4-i7 | species | 1 | 0 |
| india | himachal pradesh | azospirillum brasilense | species | 2 | 0 |
| india | karnataka | azospirillum brasilense | species | 1 | 0 |
| india | karnataka | azospirillum halopraeferens | species | 1 | 0 |
| india | karnataka | niveispirillum irakense | species | 3 | 0 |
| india | kerala | azospirillum brasilense | species | 1 | 0 |
| india | kerala | azospirillum halopraeferens | species | 1 | 0 |
| india | kerala | azospirillum lipoferum | species | 2 | 0 |
| india | rajasthan | azospirillum | genus | 0 | 1 |
| india | tamil nadu | azospirillum | genus | 0 | 1 |
| india | tamil nadu | azospirillum brasilense | species | 2 | 0 |
| india | tamil nadu | azospirillum halopraeferens | species | 1 | 0 |
| india | tamil nadu | azospirillum lipoferum | species | 8 | 1 |
| india | tamil nadu | azospirillum sp. jc34 | species | 1 | 0 |
| india | tamil nadu | nitrospirillum amazonense | species | 2 | 0 |
| india | tamil nadu | niveispirillum irakense | species | 1 | 0 |
| india | uttar pradesh | azospirillum brasilense | species | 21 | 0 |
| india | west bengal | azospirillum sp. tts | species | 1 | 0 |
| iran | | azospirillum brasilense | species | 1 | 0 |
| iran | | azospirillum oryzae | species | 1 | 0 |
| iran | | azospirillum sp. | species | 2 | 0 |
| iran | | azospirillum zeae | species | 3 | 0 |
| iraq | | niveispirillum irakense dsm 11586 | no rank | 20 | 0 |
| israel | | azospirillum brasilense | species | 2376 | 0 |
| italy | | azospirillum sp. r-17(2011) | species | 1 | 0 |
| italy | | azospirillum sp. r-6(2011) | species | 1 | 0 |
| italy | | azospirillum sp. r-7(2011) | species | 1 | 0 |
| italy | | uncultured azospirillum sp. | species | 1 | 0 |
| italy | basilicata region | azospirillum brasilense | species | 8 | 0 |
| italy | campania region | azospirillum sp. enrichment culture clone cl-19-sarno river | species | 1 | 0 |
| italy | lombardy region | azospirillum lipoferum | species | 1 | 0 |
| italy | lombardy region | azospirillum sp. e0-b13 | species | 1 | 0 |
| italy | lombardy region | azospirillum sp. e0-b20 | species | 1 | 0 |
| italy | lombardy region | azospirillum sp. e0-b22 | species | 1 | 0 |
| italy | sicily autonomous region | azospirillum sp. r-17(2011) | species | 1 | 0 |
| italy | sicily autonomous region | azospirillum sp. r-6(2011) | species | 1 | 0 |
| italy | sicily autonomous region | azospirillum sp. r-7(2011) | species | 1 | 0 |
| japan | | azospirillum sp. | species | 1 | 0 |
| japan | | azospirillum sp. iso-31 | species | 1 | 0 |
| japan | | azospirillum sp. tsa2s | species | 20 | 0 |
| japan | | azospirillum sp. tsh100 | species | 16 | 0 |
| japan | | uncultured azospirillum sp. | species | 2 | 0 |
| japan | hokkaido prefecture | azospirillum | genus | 0 | 1 |
| japan | hokkaido prefecture | uncultured azospirillum sp. | species | 5 | 0 |
| japan | miyagi ken prefecture | azospirillum sp. caal12 | species | 1 | 0 |
| japan | osaka prefecture | niveispirillum irakense | species | 1 | 0 |
| japan | shiga prefecture | azospirillum sp. pd-e-(r)-m-d-4(5) | species | 1 | 0 |
| japan | shizuoka prefecture | uncultured azospirillum sp. | species | 8 | 0 |
| japan | tokyo prefecture | azospirillum sp. | species | 37 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa10 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa11 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa12 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa13 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa14w | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa15c | species | 2 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa16 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa18 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa19 | species | 4 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa20c | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa2s | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa36t | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa63w | species | 2 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsa6c | species | 91 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh10 | species | 2 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh100 | species | 255 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh19 | species | 2 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh2 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh20 | species | 446 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh21 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh5 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh51 | species | 2 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh56 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh58 | species | 388 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh6 | species | 2 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh61 | species | 2 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh64 | species | 34 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh7 | species | 460 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh78 | species | 4 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh8 | species | 3 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh81w | species | 2 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh81y | species | 1 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh91 | species | 2 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh96 | species | 2 | 0 |
| japan | tokyo prefecture | azospirillum sp. tsh98 | species | 1 | 0 |
| japan | tokyo prefecture | azospirillum sp. tso22-1 | species | 504 | 0 |
| japan | tokyo prefecture | azospirillum sp. tso35-2 | species | 46 | 0 |
| japan | tokyo prefecture | azospirillum sp. tso5 | species | 408 | 0 |
| japan | yamanashi prefecture | azospirillum sp. | species | 1 | 0 |
| kuwait | | azospirillum rugosum | species | 2 | 0 |
| kuwait | | uncultured azospirillum sp. | species | 3 | 0 |
| malaysia | | nitrospirillum amazonense | species | 2 | 0 |
| mexico | | azospirillum brasilense | species | 2 | 0 |
| mexico | | uncultured azospirillum sp. | species | 10 | 0 |
| mexico | zacatecas | azospirillum lipoferum | species | 2 | 0 |
| morocco | | azospirillum lipoferum | species | 1 | 0 |
| namibia | | azospirillum sp. lmab10 | species | 1 | 0 |
| namibia | | uncultured azospirillum sp. | species | 1 | 0 |
| netherlands | | uncultured azospirillum sp. | species | 1 | 0 |
| nigeria | | uncultured azospirillum sp. | species | 13 | 0 |
| pakistan | | azospirillum brasilense | species | 1 | 0 |
| pakistan | | azospirillum halopraeferens dsm 3675 | no rank | 50 | 0 |
| pakistan | | azospirillum lipoferum | species | 2 | 0 |
| pakistan | | azospirillum sp. | species | 8 | 0 |
| pakistan | punjab province | azospirillum | genus | 0 | 1 |
| pakistan | punjab province | azospirillum brasilense | species | 1 | 0 |
| portugal | aveiro district | azospirillum sp. | species | 1 | 0 |
| russia | | azospirillum brasilense | species | 2 | 0 |
| russia | | azospirillum doebereinerae | species | 1 | 0 |
| russia | | azospirillum sp. | species | 1 | 0 |
| russia | | azospirillum sp. sr-c10 | species | 1 | 0 |
| russia | irkutsk oblast | uncultured azospirillum sp. | species | 1 | 0 |
| russia | moscow city | azospirillum doebereinerae | species | 179 | 0 |
| russia | saratov oblast | azospirillum | genus | 0 | 1 |
| russia | saratov oblast | azospirillum brasilense | species | 22 | 1 |
| russia | stavropol krai | azospirillum thiophilum | species | 216 | 0 |
| singapore | | azospirillum lipoferum | species | 1 | 0 |
| singapore | | uncultured azospirillum sp. | species | 3 | 0 |
| south africa | mpumalanga province | azospirillum sp. | species | 1 | 0 |
| south korea | | azospirillum brasilense | species | 1 | 0 |
| south korea | | azospirillum oryzae | species | 9 | 0 |
| south korea | | azospirillum sp. | species | 6 | 0 |
| south korea | | nitrospirillum amazonense | species | 3 | 0 |
| south korea | seoul city | azospirillum sp. pt6c | species | 1 | 0 |
| south korea | south jeolla province | azospirillum sp. | species | 1 | 0 |
| spain | | uncultured azospirillum sp. | species | 28 | 0 |
| switzerland | zurich region | azospirillum sp. z012 | species | 1 | 0 |
| taiwan | | azospirillum | genus | 0 | 1 |
| taiwan | | azospirillum brasilense | species | 0 | 2 |
| taiwan | | azospirillum formosense | species | 1 | 0 |
| taiwan | | azospirillum zeae | species | 0 | 1 |
| taiwan | | nitrospirillum amazonense | species | 0 | 1 |
| taiwan | taiwan municipality | azospirillum formosense | species | 142 | 0 |
| tanzania | zanzibar urban/west region | azospirillum | genus | 0 | 1 |
| thailand | chai nat province | azospirillum sp. ts11 | species | 1 | 0 |
| thailand | chai nat province | azospirillum sp. ts13 | species | 1 | 0 |
| thailand | chai nat province | azospirillum sp. ts19 | species | 1 | 0 |
| thailand | kanchanaburi province | azospirillum sp. ts6 | species | 1 | 0 |
| thailand | lop buri province | azospirillum sp. ts15 | species | 1 | 0 |
| thailand | nakhon ratchasima province | azospirillum sp. ts10 | species | 1 | 0 |
| thailand | nakhon sawan province | azospirillum sp. ts8 | species | 1 | 0 |
| thailand | nonthaburi province | azospirillum sp. ts20 | species | 1 | 0 |
| thailand | phetchabun province | azospirillum sp. ts23 | species | 1 | 0 |
| thailand | suphan buri province | azospirillum sp. | species | 1 | 0 |
| thailand | suphan buri province | azospirillum sp. ts18 | species | 1 | 0 |
| thailand | suphan buri province | azospirillum sp. ts24 | species | 1 | 0 |
| thailand | suphan buri province | azospirillum sp. ts7 | species | 1 | 0 |
| thailand | tak province | azospirillum sp. ts17 | species | 1 | 0 |
| tunisia | | uncultured azospirillum sp. | species | 2 | 0 |
| turkey | | azospirillum brasilense | species | 4 | 0 |
| turkey | izmir province | azospirillum brasilense | species | 1 | 0 |
| turkey | mugla province | azospirillum sp. ns33 | species | 1 | 0 |
| united states | | azospirillum sp. | species | 2 | 0 |
| united states | | uncultured azospirillum sp. | species | 4 | 0 |
| united states | florida | azospirillum | genus | 0 | 1 |
| united states | michigan | azospirillum sp. | species | 1 | 0 |
| united states | michigan | uncultured azospirillum sp. | species | 1 | 0 |
| united states | minnesota | azospirillum sp. | species | 66 | 0 |
| united states | minnesota | uncultured azospirillum sp. | species | 2 | 0 |
| united states | oregon | azospirillum | genus | 0 | 1 |
| united states | pennsylvania | azospirillum brasilense | species | 487 | 0 |
| united states | pennsylvania | azospirillum sp. | species | 3 | 0 |
| united states | tennessee | azospirillum sp. is-b008 | species | 1 | 0 |
| united states | tennessee | azospirillum sp. is-b220 | species | 1 | 0 |
| united states | tennessee | azospirillum sp. is-b221 | species | 1 | 0 |
| united states | tennessee | azospirillum sp. is-c053 | species | 1 | 0 |
| united states | tennessee | azospirillum sp. is-c406 | species | 1 | 0 |
| united states | utah | azospirillum lipoferum | species | 2 | 0 |
| united states | washington | uncultured azospirillum sp. | species | 1 | 0 |
| united states | wisconsin | azospirillum brasilense | species | 0 | 1 |
| vietnam | | azospirillum sp. as-c1.3 | species | 1 | 0 |
| vietnam | | azospirillum sp. as-cf1.5 | species | 1 | 0 |
| vietnam | | azospirillum sp. as-ht14.1 | species | 1 | 0 |
| vietnam | ha noi city | azospirillum sp. da10-2 | species | 1 | 0 |
| vietnam | ha noi city | azospirillum sp. da2-3-1 | species | 1 | 0 |
| vietnam | ha noi city | azospirillum sp. da6-2-2 | species | 1 | 0 |
| vietnam | ha noi city | azospirillum sp. dg7 | species | 1 | 0 |
| vietnam | ha noi city | azospirillum sp. mat2-1a | species | 7 | 0 |
| vietnam | long an province | nitrospirillum amazonense | species | 1 | 0 |