The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 16201 | Ofsted Inspection Regime | £ 61,751,261 | |
| 16202 | og esaelP | £ 4,208,484 | |
| 16203 | ogkush | £ 2,491,394 | |
| 16204 | Ogrimmar | £ 35,379,515 | |
| 16205 | Oh Herro | £ 2,995,837 | |
| 16206 | Oh Jesus Christ | £ 9,142,153 | |
| 16207 | Oh My God | £ 39,450,308 | |
| 16208 | Oh No | £ 206,006,520 | |
| 16209 | Oh YEAH | £ 2,549,726 | |
| 16210 | ohara inc | £ -165,571 | |
| 16211 | ohe herrow | £ 5,703,509 | |
| 16212 | Ohio | £ 34,948,001 | |
| 16213 | Ohms | £ 139,346,445 | |
| 16214 | Ohnoitsmymothernlaw | £ 5,504,562 | |
| 16215 | Ohtaku inc | £ 3,600,029 | |
| 16216 | Ohtaku inc1 | £ 4,456,703 | |
| 16217 | Ohtaku inc2 | £ 1,267,353 | |
| 16218 | Ohtaku inc3 | £ 4,191,984 | |
| 16219 | Ohtaku inc4 | £ 4,118,968 | |
| 16220 | ohyesyesh | £ 50,000 | |
| 16221 | Oil | £ 833,968,470 | |
| 16222 | Oil CONGLOMO | £ 2,646,845 | |
| 16223 | Oil Field | £ 271,568 | |
| 16224 | Oil First | £ 49,880 | |
| 16225 | Oil Inc | £ 1,610,027 | |
| 16226 | Oil Industry | £ 4,441,721 | |
| 16227 | Oil Rigger | £ 2,151,587,047 | |
| 16228 | Oil Tycoon | £ 5,374,700 | |
| 16229 | Oilfield Industries | £ 9,854,297 | |
| 16230 | oiu | £ 5,498,037 | |
| 16231 | OJ da Juiceman | £ 109,855 | |
| 16232 | OK Tom | £ 213,436,455 | |
| 16233 | OKFurniture | £ 50,000 | |
| 16234 | OKG Shed | £ -329,334 | |
| 16235 | Oklahoma | £ 14,708,023 | |
| 16236 | OKS 1 PTE LTD | £ 50,000 | |
| 16237 | OKS PTE LTD | £ 2,148,676 | |
| 16238 | OLafa | £ 5,088,982 | |
| 16239 | Oland Ltd | £ 50,000 | |
| 16240 | Olay | £ 326,245,749 | |
| 16241 | Old | £ 1,090,863,532 | |
| 16242 | Old Age | £ 428,870,365 | |
| 16243 | Old Antique | £ 17,766,506 | |
| 16244 | Old Bay | £ 123,534,579 | |
| 16245 | Old Bill | £ 45,792,842 | |
| 16246 | Old Boss | £ 15,094,253 | |
| 16247 | Old Carpet | £ 163,972,008 | |
| 16248 | Old company names | £ 1,140,094,033 | |
| 16249 | old farts | £ 3,542,428,093 | |
| 16250 | Old Feuds | £ 44,696,704 | |
| 16251 | Old Granny | £ 9,329,769 | |
| 16252 | old lard | £ -7,521,344 | |
| 16253 | old legends | £ 14,735,844 | |
| 16254 | Old men | £ 397,899,239 | |
| 16255 | Old No. 7 | £ 749,759,055 | |
| 16256 | Old people | £ 41,298,004 | |
| 16257 | Old Rocker | £ 416,345,265 | |
| 16258 | Old School | £ 5,514,041 | |
| 16259 | old skool butta | £ 614,087 | |
| 16260 | Old Smoky | £ 622,122,584 | |
| 16261 | Old Socks | £ 144,379,758 | |
| 16262 | Old Spice | £ 575,516,293 | |
| 16263 | old to netro | £ 80,731,925 | |
| 16264 | Old tyres | £ 54,000,053 | |
| 16265 | Old Whiskey | £ 78,899,948 | |
| 16266 | Old Wisteria | £ 51,324,515 | |
| 16267 | Old World Industry | £ 1,734,908 | |
| 16268 | Old World Ventures | £ 50,000 | |
| 16269 | OlDirty | £ 47,991,916 | |
| 16270 | oldschool | £ 121,302,173 | |
| 16271 | Oligarchy | £ 1,026,573,292 | |
| 16272 | Oligarchy inc. | £ 7,116,723 | |
| 16273 | olis | £ 91,036,818 | |
| 16274 | Olivers Imagination | £ 124,320,555 | |
| 16275 | olives | £ 568,111,602 | |
| 16276 | Olives ltd | £ 2,575,542 | |
| 16277 | Ollio Inc. | £ 6,159,098 | |
| 16278 | Ollio2 Inc. | £ -2,232,039 | |
| 16279 | Ollio3 Inc. | £ -680,853 | |
| 16280 | Olrik | £ 22,147,425 | |
| 16281 | Olympia | £ 112,782,553 | |
| 16282 | olympic rings | £ 3,084,696,830 | |
| 16283 | Olympics | £ 5,508,747 | |
| 16284 | Olympus | £ 2,084,999,378 | |
| 16285 | OMD | £ 333,034,023 | |
| 16286 | Omega | £ 6,183,955 | |
| 16287 | Omega Indusries | £ 37,799 | |
| 16288 | OmegaFox Inc. | £ 1,266,634 | |
| 16289 | Omens | £ 1,377,564,668 | |
| 16290 | Omerta | £ 1,007,186,123 | |
| 16291 | Omerta Inc. | £ 5,500,096 | |
| 16292 | omission | £ 101,305,305 | |
| 16293 | Omni | £ 26,585,058 | |
| 16294 | Omni Consumer Products | £ 32,296,370 | |
| 16295 | Omni Future Corp 1 | £ 855,512,970 | |
| 16296 | omni4 | £ 1,185,151 | |
| 16297 | Omnia | £ 29,796,207 | |
| 16298 | OmniCorp | £ 5,503,691 | |
| 16299 | Omnifarious | £ 2,360,838,488 | |
| 16300 | Omnificent | £ 2,321,277,749 | |
