n/
n/a

Nakamurella
multipartita

Nannocystis
exedens - pusilla - sp.

Natrialba
aegyptia - asiatica - magadii - taiwanensis

Natrinema
pallidum - pellirubrum

Natroniella
acetigena

Natronincola
histidinovorans

Natronobacterium
gregoryi

Natronococcus
amylolyticus - occultus

Natronomonas
pharaonis

Natronorubrum
bangense - tibetense

Nautilia
lithotrophica

Naxibacter
alkalitolerans

Neisseria
animalis - canis - cinerea - denitrificans - dentiae - elongata - flavescens - gonorrhoeae - lactamica - macacae - meningitidis - mucosa - perflava - polysaccharea - sicca - subflava - weaveri

Neptunomonas
naphthovorans

Nereida
ignava

Nesterenkonia
aethiopica - halobia - halotolerans - lacusekhoensis - lutea - sandarakina - xinjiangensis

Nevskia
ramosa

Nicoletella
semolina

Nitratifractor
salsuginis

Nitratireductor
aquibiodomus

Nitratiruptor
tergarcus

Nitrobacter
agilis - hamburgensis - vulgaris - winogradskyi

Nitrococcus
mobilis

Nitrosococcus
oceani

Nitrosomonas
europaea

Nitrosospira
multiformis

Nocardia
abscessus - acidivorans - africana - alba - albiflava - altamirensis - amamiensis - anaemiae - aobensis - araoensis - arthritidis - asiatica - asteroides - beijingensis - brasiliensis - brevicatena - caishijiensis - carnea - cerradoensis - coeliaca - concava - corynebacteroides - crassostreae - cummidelens - cyriacigeorgica - devorans - diaphanozonaria - elegans - exalbida - farcinica - flavorosea - fluminea - gamkensis - globerula - higoensis - ignorata - inohanensis - italica - jejuensis - jiangxiensis - jinanensis - kampachi - kruczakiae - leishmanii - lijiangensis - lucida - lutea - madurae - mexicana - miyunensis - neocaledoniensis - niigatensis - ninae - nitrificans - nova - novocastrense - otitidiscaviarum - paraguayensis - paucivorans - pigrifrangens - pneumoniae - polyresistens - pseudobrasiliensis - pseudosporangifera - pseudovaccinii - puris - restricta - roseoalba - rugosa - salmonicida - salmonicolor - seriolae - shimofusensis - sienata - soli - sp - sp. - takedensis - tenerifensis - tenuis - terpeniae - testacea - thailandica - transvalensis - tsunamiensis - uniformis - vaccini - vaccinii - vermiculata - veterana - vinacea - violaceofusca - xishanensis - yamanashiensis

Nocardiodes
sp.

Nocardioides
albus - alkalitolerans - aquaticus - aquiterrae - aromaticivorans - furvisabuli - ganghwensis - insulae - jensenii - kribbensis - lentus - luteus - nitrophenolicus - oleivorans - plantarum - pyridinolyticus - simplex - sp.

Nocardiopsis
aegyptia - alba - alkaliphila - arabicus - baichengensis - benisuefensis - buerjinensis - chakaensis - chromatogenes - composta - dassonvillei - exhalans - flavidus - fragmentaris - ganjiaensis - gilva - halophila - halotolerans - kunsanensis - listeri - lucentensis - metallicus - palisidis - prasina - rampartis - rhodophaea - rosea - salina - sp. - streptosporeus - synnemataformans - tangguensis, - trehalosi - tropica - umidischolae - xinjiangensis - yanqiensis

Nonomuraea
africana - angiospora - asiatica - dietziae - fastidiosa - ferruginea - helvata - kuesteri - latina - longicatena - polychroma - pusilla - recticatena - roseola - roseoviolacea - rubra - salmonea - sp. - spiralis - terrinata - turkmeniaca

Novosphingobium
aromaticivorans - capsulatum - hassiacum - lentum - pentaromativorans - rosa - roseae - stygium - subarcticum - subterraneum - taihuense - tardaugens