| Genome | Size | G+C content |
| Agrobacterium tumefaciens str. C58 (U. Washington) chromosome circular, complete sequence | 2841490 | 0.59 |
| Agrobacterium tumefaciens str. C58 (U. Washington) chromosome linear, complete sequence | 2075560 | 0.59 |
| Agrobacterium tumefaciens str. C58 (U. Washington) plasmid AT, complete sequence | 542780 | 0.57 |
| Agrobacterium tumefaciens str. C58 (U. Washington) plasmid Ti, complete sequence | 214234 | 0.56 |
| Agrobacterium tumefaciens strain C58 circular chromosome, complete sequence | 2841581 | 0.59 |
| Agrobacterium tumefaciens strain C58 linear chromosome, complete sequence | 2074782 | 0.59 |
| Agrobacterium tumefaciens strain C58 plasmid AT, complete sequence | 542869 | 0.57 |
| Agrobacterium tumefaciens strain C58 plasmid Ti, complete sequence | 214331 | 0.56 |
| Aquifex aeolicus complete genome | 1551335 | 0.43 |
| Aquifex aeolicus plasmid ece1, complete sequence | 39456 | 0.36 |
| Bacillus anthracis str. Ames, complete genome | 5227293 | 0.35 |
| Bacillus cereus ATCC 14579 plasmid pBClin15, complete sequence | 15100 | 0.38 |
| Bacillus cereus ATCC 14579, complete genome | 5411809 | 0.35 |
| Bacillus halodurans, complete genome | 4202353 | 0.43 |
| Bacillus subtilis, complete genome | 4214814 | 0.43 |
| Bifidobacterium longum NCC2705, complete genome | 2256646 | 0.60 |
| Bordetella bronchiseptica, complete genome | 5339179 | 0.68 |
| Bordetella parapertussis, complete genome | 4773551 | 0.68 |
| Bordetella pertussis, complete genome | 4086189 | 0.67 |
| Borrelia burgdorferi B31 plasmid cp32-1, complete sequence | 30750 | 0.29 |
| Borrelia burgdorferi B31 plasmid cp32-3, complete sequence | 30223 | 0.28 |
| Borrelia burgdorferi B31 plasmid cp32-4, complete sequence | 30299 | 0.29 |
| Borrelia burgdorferi B31 plasmid cp32-6, complete sequence | 29838 | 0.29 |
| Borrelia burgdorferi B31 plasmid cp32-7, complete sequence | 30800 | 0.29 |
| Borrelia burgdorferi B31 plasmid cp32-8, complete sequence | 30885 | 0.29 |
| Borrelia burgdorferi B31 plasmid cp32-9, complete sequence | 30651 | 0.29 |
| Borrelia burgdorferi B31 plasmid lp21, complete sequence | 18753 | 0.20 |
| Borrelia burgdorferi B31 plasmid lp5, complete sequence | 5227 | 0.23 |
| Borrelia burgdorferi B31 plasmid lp56, complete sequence | 52971 | 0.27 |
| Borrelia burgdorferi plasmid cp26, complete sequence | 26498 | 0.26 |
| Borrelia burgdorferi plasmid cp9, complete sequence | 9386 | 0.23 |
| Borrelia burgdorferi plasmid lp17, complete sequence | 16823 | 0.23 |
| Borrelia burgdorferi plasmid lp25, complete sequence | 24170 | 0.23 |
| Borrelia burgdorferi plasmid lp28-1, complete sequence | 26921 | 0.32 |
| Borrelia burgdorferi plasmid lp28-2, complete sequence | 29766 | 0.31 |
| Borrelia burgdorferi plasmid lp28-3, complete sequence | 28599 | 0.25 |
| Borrelia burgdorferi plasmid lp28-4, complete sequence | 27323 | 0.24 |
| Borrelia burgdorferi plasmid lp36, complete sequence | 36849 | 0.26 |
| Borrelia burgdorferi plasmid lp38, complete sequence | 38827 | 0.26 |
| Borrelia burgdorferi plasmid lp54, complete sequence | 53559 | 0.28 |
| Borrelia burgdorferi, complete genome | 910683 | 0.28 |
| Bradyrhizobium japonicum, complete genome | 9105828 | 0.64 |
| Brucella melitensis chromosome I, complete sequence | 2117144 | 0.57 |
| Brucella melitensis chromosome II, complete sequence | 1177787 | 0.57 |
| Brucella suis 1330 chromosome I, complete sequence | 2107792 | 0.57 |
| Brucella suis 1330 chromosome II, complete sequence | 1207381 | 0.57 |
| Buchnera aphidicola (Baizongia pistaciae), complete genome | 615980 | 0.25 |
| Buchnera aphidicola str. APS (Acyrthosiphon pisum), complete genome | 640681 | 0.26 |
| Buchnera aphidicola str. Sg (Schizaphis graminum), complete genome | 641454 | 0.25 |
| Buchnera sp. APS plasmid pLeu, complete sequence | 7786 | 0.26 |
| Buchnera sp. APS plasmid pTrp, complete sequence | 7258 | 0.30 |
| Campylobacter jejuni, complete genome | 1641481 | 0.30 |
| Candidatus Blochmannia floridanus, complete genome | 705557 | 0.27 |
| Caulobacter crescentus CB15, complete genome | 4016947 | 0.67 |
| Chlamydia muridarum plasmid pMoPn, complete sequence | 7501 | 0.35 |
| Chlamydia muridarum, complete genome | 1072933 | 0.40 |
| Chlamydia pneumoniae AR39 Main Chromosome | 1229789 | 0.40 |
| Chlamydia trachomatis, complete genome | 1042519 | 0.41 |
| Chlamydophila caviae GPIC plasmid pCpGP1, complete sequence | 7966 | 0.33 |
| Chlamydophila caviae GPIC, complete genome | 1173390 | 0.39 |
| Chlamydophila pneumoniae CWL029 complete genome | 1230230 | 0.40 |
| Chlamydophila pneumoniae J138, complete genome | 1226565 | 0.40 |
| Chlamydophila pneumoniae TW-183, complete genome | 1225935 | 0.40 |
| Chlorobium tepidum TLS, complete genome | 2154939 | 0.56 |
| Clostridium acetobutylicum ATCC824 complete genome | 3940880 | 0.30 |
| Clostridium acetobutylicum plasmid pSOL1, complete sequence | 192000 | 0.30 |
| Clostridium perfringens plasmid pCP13, complete sequence | 54310 | 0.25 |
| Clostridium perfringens, complete genome | 3031430 | 0.28 |
| Clostridium tetani E88, complete genome | 2799251 | 0.28 |
| Coxiella burnetii RSA 493, complete genome | 1995275 | 0.42 |
| Enterococcus faecalis V583, complete genome | 3218031 | 0.37 |
| Escherichia coli CFT073, complete genome | 5231235 | 0.50 |
| Escherichia coli K12, complete genome | 4639221 | 0.50 |
| Escherichia coli O157:H7 EDL933, complete genome | 5526032 | 0.50 |
| Escherichia coli O157:H7, complete genome | 5498450 | 0.50 |
| Escherichia coli plasmid pO157, complete sequence | 92721 | 0.47 |
| Escherichia coli plasmid pOSAK1, complete sequence | 3306 | 0.43 |
| Fusobacterium nucleatum subsp. nucleatum ATCC 25586, complete genome | 2174500 | 0.27 |
| Haemophilus ducreyi 35000HP, complete genome | 1698955 | 0.38 |
| Haemophilus influenzae Rd, complete genome | 1830069 | 0.38 |
| Helicobacter hepaticus ATCC 51449 complete genome | 1799146 | 0.35 |
| Helicobacter pylori 26695, complete genome | 1667833 | 0.38 |
| Helicobacter pylori, strain J99 complete genome | 1643831 | 0.39 |
| Lactobacillus plantarum WCFS1, complete genome | 3308274 | 0.44 |
| Lactococcus lactis subsp. lactis, complete genome | 2365589 | 0.35 |
| Leptospira interrogans serovar lai str. 56601 chromosome I, complete sequence | 4332241 | 0.35 |
| Leptospira interrogans serovar lai str. 56601 chromosome II, complete sequence | 358943 | 0.35 |
| Listeria innocua Clip11262, complete genome | 3011208 | 0.37 |
| Listeria innocua plasmid pLI100, complete sequence | 81905 | 0.35 |
| Listeria monocytogenes strain EGD, complete genome | 2944528 | 0.37 |
| Mesorhizobium loti plasmid pMLa, complete sequence | 351911 | 0.59 |
| Mesorhizobium loti plasmid pMLb, complete sequence | 208315 | 0.59 |
| Mesorhizobium loti, complete genome | 7036074 | 0.62 |
| Neisseria meningitidis serogroup A strain Z2491 complete genome | 2184406 | 0.51 |
| Neisseria meningitidis serogroup B strain MC58 complete genome | 2272351 | 0.51 |
| Nitrosomonas europaea ATCC 19718, complete genome | 2812094 | 0.50 |
| Nostoc sp. PCC 7120 complete genome | 6413771 | 0.41 |
| Nostoc sp. PCC 7120 plasmid pCC7120alpha, complete sequence | 408101 | 0.40 |
| Nostoc sp. PCC 7120 plasmid pCC7120beta, complete sequence | 186614 | 0.40 |
| Nostoc sp. PCC 7120 plasmid pCC7120delta, complete sequence | 55414 | 0.41 |
| Nostoc sp. PCC 7120 plasmid pCC7120epsilon, complete sequence | 40340 | 0.40 |
| Nostoc sp. PCC 7120 plasmid pCC7120gamma, complete sequence | 101965 | 0.41 |
| Nostoc sp. PCC 7120 plasmid pCC7120zeta, complete sequence | 5584 | 0.44 |
| Oceanobacillus iheyensis HTE831, complete genome | 3630528 | 0.35 |
| Pasteurella multocida, complete genome | 2257487 | 0.40 |
| Pirellula sp., complete genome | 7145576 | 0.55 |
| Prochlorococcus marinus str. MIT 9313, complete genome | 2410873 | 0.50 |
| Prochlorococcus marinus subsp. marinus str. CCMP1375, complete genome | 1751080 | 0.36 |
| Prochlorococcus marinus subsp. pastoris str. CCMP1378, complete genome | 1657990 | 0.30 |
| Pseudomonas aeruginosa PA01, complete genome | 6264403 | 0.66 |
| Pseudomonas putida KT2440, complete genome | 6181863 | 0.61 |
| Pseudomonas syringae pv. tomato str. DC3000, complete genome | 6397126 | 0.58 |
| Ralstonia solanacearum megaplasmid, complete sequence | 2094509 | 0.66 |
| Ralstonia solanacearum, complete genome | 3716413 | 0.67 |
| Salmonella enterica subsp. enterica serovar Typhi Ty2, complete genome | 4791950 | 0.52 |
| Salmonella enterica subsp. enterica serovar Typhi plasmid pHCM1, complete sequence | 218160 | 0.47 |
| Salmonella enterica subsp. enterica serovar Typhi plasmid pHCM2, complete sequence | 106516 | 0.50 |
| Salmonella enterica subsp. enterica serovar Typhi, complete genome | 4809037 | 0.52 |
| Salmonella typhimurium LT2 plasmid pSLT, complete sequence | 93939 | 0.53 |
| Salmonella typhimurium LT2, complete genome | 4857432 | 0.52 |
| Shewanella oneidensis MR-1 megaplasmid, complete sequence | 161613 | 0.43 |
| Shewanella oneidensis MR-1, complete genome | 4969795 | 0.45 |
| Shigella flexneri 2a str. 2457T, complete genome | 4599327 | 0.50 |
| Shigella flexneri 2a str. 301, complete genome | 4607203 | 0.50 |
| Sinorhizobium meliloti 1021 complete genomes | 3654135 | 0.62 |
| Sinorhizobium meliloti plasmid pSymA, complete sequence | 1354226 | 0.60 |
| Sinorhizobium meliloti plasmid pSymB, complete sequence | 1683333 | 0.62 |
| Synechococcus sp. WH 8102, complete genome | 2434428 | 0.59 |
| Synechocystis sp. PCC 6803, complete genome | 3573470 | 0.47 |
| Thermoanaerobacter tengcongensis strain MB4T, complete genome | 2689445 | 0.37 |
| Thermosynechococcus elongatus BP-1, complete genome | 2593857 | 0.53 |
| Treponema pallidum complete genome | 1137945 | 0.52 |
| Vibrio cholerae chromosome I, complete chromosome | 2961118 | 0.47 |
| Vibrio cholerae chromosome II, complete chromosome | 1072311 | 0.46 |
| Vibrio parahaemolyticus RIMD 2210633 chromosome I, complete sequence | 3288558 | 0.45 |
| Vibrio parahaemolyticus RIMD 2210633 chromosome II, complete sequence | 1877212 | 0.45 |
| Vibrio vulnificus CMCP6 chromosome I, complete sequence | 3281945 | 0.46 |
| Vibrio vulnificus CMCP6 chromosome II, complete sequence | 1844853 | 0.47 |
| Xanthomonas axonopodis pv. citri str. 306, complete genome | 5175554 | 0.64 |
| Xanthomonas campestris pv. campestris str. ATCC 33913, complete genome | 5076188 | 0.65 |
| Xylella fastidiosa 9a5c, complete genome | 2679306 | 0.52 |
| Xylella fastidiosa Temecula1 plasmid pXFPD1.3, complete sequence | 1346 | 0.53 |
| Xylella fastidiosa Temecula1, complete genome | 2519802 | 0.51 |
| Xylella fastidiosa plasmid pXF1.3, complete sequence | 1286 | 0.55 |
| Xylella fastidiosa plasmid pXF51, complete sequence | 51158 | 0.49 |
| Yersinia pestis CO92 plasmid pCD1, complete sequence | 70305 | 0.44 |
| Yersinia pestis CO92 plasmid pMT1, complete sequence | 96210 | 0.50 |
| Yersinia pestis CO92 plasmid pPCP1, complete sequence | 9612 | 0.45 |
| Yersinia pestis KIM, complete genome | 4600755 | 0.47 |
| Yersinia pestis strain CO92, complete genome | 4653728 | 0.47 |