The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 5201 | CSTPhotography5 | £ 31,737,697 | |
| 5202 | Cthulhu | £ 65,626,904 | |
| 5203 | Cthulhu Corp | £ 5,503,404 | |
| 5204 | Cthulhu Sleeps | £ 1,035,686,271 | |
| 5205 | CTI | £ 4,783,705 | |
| 5206 | CTowers | £ 5,026,966 | |
| 5207 | CTU | £ 3,183,621 | |
| 5208 | Cuba | £ 46,040,107 | |
| 5209 | Cuban Rum | £ 27,147,126 | |
| 5210 | Cube | £ 11,923,402 | |
| 5211 | Cube Inc. | £ 5,507,410 | |
| 5212 | cuberdons | £ 8,923,048 | |
| 5213 | Cubic Works | £ 7,695,062 | |
| 5214 | Cubicstan | £ 3,037,220 | |
| 5215 | Cuckold | £ 3,990,750 | |
| 5216 | Cuckoo Ltd | £ 4,991,067 | |
| 5217 | Cucumber | £ 2,015,046,897 | |
| 5218 | Cue | £ 621,309 | |
| 5219 | Cufin | £ 4,931,482 | |
| 5220 | Cullins | £ 589,733,633 | |
| 5221 | Culliver City | £ 19,474,104 | |
| 5222 | Culo | £ 54,280,976 | |
| 5223 | cult and co | £ 23,957,017 | |
| 5224 | Cult of Morty Morty | £ 40,021,774 | |
| 5225 | cultural appropriation | £ 759,886,770 | |
| 5226 | Cultural Expressions | £ 167,279,109 | |
| 5227 | Cumann Luthchleas Gael | £ 5,502,913 | |
| 5228 | Cuneo | £ 57,638,840 | |
| 5229 | Cunny Funt | £ 4,898,097 | |
| 5230 | Cunnys Trading Company | £ 982,076 | |
| 5231 | Cup | £ 19,851,641 | |
| 5232 | Cup0fTea | £ 253,762,330 | |
| 5233 | Cupid Stunts PLC | £ 276,395,414 | |
| 5234 | Cups | £ 65,928,983 | |
| 5235 | Curiosity | £ 271,222,744 | |
| 5236 | Current Charges | £ 272,053,370 | |
| 5237 | Currents | £ 48,241,725 | |
| 5238 | Curry-clanRob | £ 5,507,441 | |
| 5239 | Cursed World | £ 3,320,256 | |
| 5240 | curtains | £ 365,303,983 | |
| 5241 | Curve | £ 1,327,620 | |
| 5242 | Curz Corp | £ 50,000 | |
| 5243 | Cusco | £ 114,190,224 | |
| 5244 | Cushion | £ 40,606,248 | |
| 5245 | Cushty Son | £ 0 | |
| 5246 | Custard | £ 57,094,161 | |
| 5247 | Custard Pie | £ 668,701,487 | |
| 5248 | Cut | £ 192,062,776 | |
| 5249 | Cute Boys Dx | £ 5,861,264 | |
| 5250 | Cute Red Industries | £ 61,322,810 | |
| 5251 | Cuthberts Coachworks | £ 596,602,678 | |
| 5252 | cutter | £ 37,900,521 | |
| 5253 | Cutting Down Trees | £ 55,370,240 | |
| 5254 | Cutty Sark | £ 45,959,272 | |
| 5255 | cvc | £ 5,541,924 | |
| 5256 | Cwm | £ 2,355,525 | |
| 5257 | CYAfergie | £ 6,790,092 | |
| 5258 | Cyanide | £ 93,319,153 | |
| 5259 | Cyber Death | £ 125,400,697 | |
| 5260 | Cyber Sharks | £ 82,973,600 | |
| 5261 | Cyber Tech | £ 3,349,487 | |
| 5262 | Cybercrime Specialists | £ 1,742,585,093 | |
| 5263 | cybercrimedetionunit | £ 1,429,198 | |
| 5264 | CyberDeath | £ 100,751,231 | |
| 5265 | Cyberdogs | £ 100,831,693 | |
| 5266 | Cyberdyne | £ 178,339,643 | |
| 5267 | Cyberdyne Corp. | £ 4,285,808 | |
| 5268 | cyberdyne inc. | £ 28,564 | |
| 5269 | Cyberdyne Systems | £ 3,061,652 | |
| 5270 | Cyberdyne Sytems | £ -1,386,763 | |
| 5271 | CyberLife | £ 1,417,404 | |
| 5272 | Cybernet | £ 50,000 | |
| 5273 | Cyberterrorism | £ 653,442,761 | |
| 5274 | Cyborg | £ 102,781,192 | |
| 5275 | Cyborgia Inc | £ 11,103,436 | |
| 5276 | cycle | £ 123,247,905 | |
| 5277 | Cycletour | £ 5,504,207 | |
| 5278 | Cyclone | £ 12,449,375 | |
| 5279 | Cyclonic energy | £ 53,352,325 | |
| 5280 | Cydonia | £ 4,972,116 | |
| 5281 | Cydonia Ltd | £ 135,066,044 | |
| 5282 | CYKA | £ 56,980,649 | |
| 5283 | CykaBlyat | £ 5,365,780 | |
| 5284 | Cylon | £ 79,057,234 | |
| 5285 | Cylons | £ 52,605,207 | |
| 5286 | Cymraeg | £ 16,291,695 | |
| 5287 | Cyprus | £ 546,672,653 | |
| 5288 | Cyrus Enterprise | £ 7,132,523 | |
| 5289 | Cyrus Enterprises | £ 4,353,444 | |
| 5290 | Cyrus Salad | £ 59,170,526 | |
| 5291 | Cytosport | £ -5,801,399 | |
| 5292 | czar | £ 4,304,081 | |
| 5293 | czx | £ 3,576,211 | |
| 5294 | D Block | £ 1,449,974,172 | |
| 5295 | D Block Enterprise | £ 2,858,788 | |
| 5296 | D Corp | £ 1,873,647 | |
| 5297 | D E A T H | £ 168,604,204 | |
| 5298 | D-Bombs | £ 67,864,173 | |
| 5299 | D-Lo Enterprise | £ 1,291,954 | |
| 5300 | D.B. Cooper | £ 1,245,353,841 | |
