- Gènere Gaetbulibacter
- Gènere Gaiella
- Gaiella occulta, Albuquerque et al. 2012
- Gènere Gallaecimonas
- Gallaecimonas pentaromativorans, Rodríguez-Blanco et al. 2010
- Gènere Gelidibacter
- Gelidibacter algens, Bowman et al. 1997
- CECT
5320 T; ATCC 700364
- Gelidibacter mesophilus, Macián et al. 2002
- CECT
5103 T; CIP 107655; DSM 14095; KCTC 12106
- CECT
5104; DSM 14094
- Gènere Gemella
- Gemella morbillorum, (Prevot 1933) Kilpper-Bälz and Schleifer 1988
- CECT
991 T; ATCC 27824; CCTM La 3424; CCUG 15561; CIP 81.10; NCFB 2228; NCTC 11323; Prevot 2917 B; VPI 5424
- Gènere Gemmatimonas
- Gemmatimonas sp, Zhang et al. 2003
- CECT
9874 T
- CECT
9875 T; DSM 109487; LMG 31380; Strain 318; VKM B-344
- Gènere Geobacillus
- Geobacillus kaustophilus, (Priest et al. 1989) Nazina et al. 2001
- CECT
4264 T; ATCC 8005; CCRC 11223; CCUG 28890; DSM 7263; Franklin 204; IAM 11001; LMD 30.3; LMG 9819; NCFB 1098; N.R. Smith T281; strain Th26; Yale BD53
- Geobacillus stearothermophilus, (Donk 1920) Nazina et al. 2001
- CECT
43 T; ATCC 12980; CCEB 641; CCM 2062; CCRC 11092; CCUG 26241; CNCTC Bac 11/83; DSM 22; IAM 11062; IAW 132; IFO 12550; JCM 2501; LMD 75.19; LMG 6939; NCA 26; NCFB 1768; NCIMB 8923; NCTC 10339; NRRL B-1172; N.R. Smith T18; PCM 2104; strain Donk; USCC 1621; VKM 510; VTT E-81128
- CECT
47; CCM 5965; CCTM La 2870; CIP 67.5; CNCTC Bac 10/82; DJJW 328; DSM 1550; FERM N-2599; Galesloot C953; HNCMB 101025; IAM 12043; LMD 74.1; LMG 11163; NCFB 1780; NCIMB 11780; NIRD 1780; NIZO C953
- CECT
48
- CECT
49; ATCC 12976; CCM 2183; CCRC 12017; CECT 920; DSM 297; HNCMB 102003; IFO 12983; IMET 10307; NCA 1356; NCFB 2011; NRS T73; VKM B-719
- CECT
920; ATCC 12976; CCM 2183; CECT 49; DSM 297; NCA 1356; NCIB 8919; VKM B-719; strain T73
- CECT
4517; ATCC 10149; DSM 6790; N.R. Smith T15; WDCM 00069
- Geobacillus thermoglucosidasius, (Suzuki 1984) Nazina et al. 2001
- CECT
7250 T; CECT 4038; DSM 2542
- Gènere Geodermatophilus
- Geodermatophilus aquaeductus, Hezbri et al. 2015
- CECT
8822 T; DSM 46834; JCM 31697
- Geodermatophilus bullaregiensis, Hezbri et al. 2015
- Geodermatophilus chilensis, Castro et al. 2020
- CECT
9483 T; NCIMB 15089
- Geodermatophilus pulveris, Hezbri et al. 2016
- Geodermatophilus sabuli, Hezbri et al. 2015
- CECT
8820 T; DSM 46844; JCM 31699
- Geodermatophilus sp, Luedemann 1968
- Gènere Gillisia
- Gillisia lutea, Vidal-Verdú et al. 2023
- Gènere Gimesia
- Gimesia alba, Wiegand et al. 2021
- CECT
9841 T; DSM 100744; LMG 31345; VKM B-3430
- Gimesia algae, Wiegand et al. 2021
- CECT
30192 T; LMG 29130; STH00943
- Gimesia chilikensis, Kumar et al. 2020
- CECT
30191; STH00944
- Gimesia maris, Scheuner et al. 2015
- CECT
9838; LMG 31348; VKM B-3428
- Gimesia panareensis, Wiegand et al. 2021
- CECT
9839; DSM 100280
- Gènere Glaciecola
- Gènere Globicatella
- Globicatella sanguinis, Collins et al. 1995
- CECT
5299
- CECT
5300 T; ATCC 51173; CCM 4548; DSM 7447; Facklam 1152-78; IFO 15551; NCFB 2835; NCIMB 702835
- Gènere Gluconacetobacter
- Gluconacetobacter dulcium, Sombolestani et al. 2021
- Gènere Gluconobacter
- Gluconobacter cadivus, Sombolestani et al. 2021
- Gluconobacter cerinus, Yamada and Akita 1984
- Gluconobacter oxydans, (Henneberg 1897) De Ley 1961 (Approved Lists 1980) emend. Mason and Claus 1989
- CECT
315; ATCC 23767; CIP 57.14; NCTC 4112; Sorbose bacterium
- CECT
360; ATCC 621; DSM 50049; IFO 3172; LMD 23.2; La 3182; Lockwood 953; NCTC 7069; NCIB 8035; NRRL B-72;
- CECT
4009; CN 1221; LBG B4099; LMG 1394; VTT E-89363
- Gluconobacter potus, Sombolestani et al. 2021
- CECT
30140 T; Kolfschoten 7-501
- Gluconobacter vitians, Sombolestani et al. 2021
- CECT
30132 T; AWI37_12; Wieme R-50361
- Gènere Gordonia
- Gordonia alkanivorans, Kummer et al. 1999
- CECT
7017; DSM 44499; JCM 11273; KCTC 0605BP; KCCM 80004; LE31
- Gordonia amarae, (Lechevalier and Lechevalier 1974) Klatte et al. 1994
- CECT
5704 T; ATCC 27808; CCM 2753; IMET 7518; IMRU W 3960; JCM 3171; KCC A-O171; NCIMB 11222; M.P. Lechevalier Se 6
- Gordonia amicalis, Kim et al. 2000
- Gordonia cholesterolivorans, Drzyzga et al. 2009
- CECT
7408 T; DSM 45229; JCM 16227
- Gordonia hirsuta, Klatte et al. 1996
- CECT
7018 T; K718a; ATCC 700255; CCUG 38498; DSM 44140; IFO (now NBRC) 16056; JCM 10105
- Gordonia hydrophobica, Bendinger et al. 1995
- CECT
7021 T; 1610/1b; ATCC 700089; DSM 44015; CIP 104672; IFO (now NBRC) 16057; JCM 10086
- Gordonia sp
- Gordonia terrae, (Tsukamura 1971) Stackebrandt et al. 1989
- CECT
5707 T; ATCC 25594; CCM 2623; DSM 43249; IMET 7371; JCM 3206; JCM 3229; LMG 5369; Mordarska T5; NCTC 10669; Tsukamura 3612
- Gènere Gracilibacillus
- Gracilibacillus orientalis, Carrasco et al. 2006
- CECT
7097 T; AS 1.4250; CCM 7326; CIP 109259; DSM 28158
- Gènere Gracilimonas
- Gracilimonas sp, Choi et al. 2009
- Gènere Gramella
- Gramella echinicola, Nedashkovskaya et al. 2005 emend. Shahina et al. 2014
- CECT
9439 T; JCM 13510; KCTC 12278; KMM 6050; LMG 22585; NBRC 100593
- Gramella sp
- CECT
7683 T; KCTC 32123
- Gènere Grimontia
- Grimontia celer, Pujalte et al. 2016
- CECT
9029 T; KCTC 42960; LMG 29238
- Grimontia hollisae, (Hickman et al. 1982) Thompson et al. 2003
- CECT
5069 T; CDC 0075-80; CIP 101886; JCM 1283; NCTC 11640
- Grimontia marina, Choi et al. 2013
- CECT
8713 T; IMCC 5001; NBRC 105794
- Gènere Gulosibacter
- Gulosibacter massiliensis, Yacouba et al. 2023