The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 5101 | CTowers | £ 5,026,966 | |
| 5102 | CTU | £ 3,183,621 | |
| 5103 | Cuba | £ 46,040,107 | |
| 5104 | Cuban Rum | £ 27,147,126 | |
| 5105 | Cube | £ 11,923,402 | |
| 5106 | Cube Inc. | £ 5,507,410 | |
| 5107 | cuberdons | £ 8,923,048 | |
| 5108 | Cubic Works | £ 7,695,062 | |
| 5109 | Cubicstan | £ 3,037,220 | |
| 5110 | Cuckold | £ 3,990,750 | |
| 5111 | Cuckoo Ltd | £ 4,991,067 | |
| 5112 | Cucumber | £ 2,015,046,897 | |
| 5113 | Cue | £ 621,309 | |
| 5114 | Cufin | £ 4,931,482 | |
| 5115 | Cullins | £ 589,733,633 | |
| 5116 | Culliver City | £ 19,474,104 | |
| 5117 | Culo | £ 54,280,976 | |
| 5118 | cult and co | £ 23,957,017 | |
| 5119 | cultural appropriation | £ 756,608,170 | |
| 5120 | Cultural Expressions | £ 167,279,109 | |
| 5121 | Cumann Luthchleas Gael | £ 5,502,913 | |
| 5122 | Cuneo | £ 57,638,840 | |
| 5123 | Cunnilingus | £ 387,732,479 | |
| 5124 | Cunny Funt | £ 4,898,097 | |
| 5125 | Cunnys Trading Company | £ 982,076 | |
| 5126 | Cup | £ 19,851,641 | |
| 5127 | Cup0fTea | £ 253,762,330 | |
| 5128 | Cupid Stunts PLC | £ 276,395,414 | |
| 5129 | Cups | £ 65,928,983 | |
| 5130 | Curiosity | £ 277,038,491 | |
| 5131 | Current Charges | £ 272,053,370 | |
| 5132 | Currents | £ 48,241,725 | |
| 5133 | Curry-clanRob | £ 5,507,441 | |
| 5134 | Cursed World | £ 3,320,256 | |
| 5135 | curtains | £ 365,303,983 | |
| 5136 | Curve | £ 1,327,620 | |
| 5137 | Curz Corp | £ 50,000 | |
| 5138 | Cusco | £ 113,238,837 | |
| 5139 | Cushion | £ 40,606,248 | |
| 5140 | Cushty Son | £ 0 | |
| 5141 | Custard | £ 57,094,161 | |
| 5142 | Custard Pie | £ 668,701,487 | |
| 5143 | Cut | £ 192,062,776 | |
| 5144 | Cute Boys Dx | £ 5,861,264 | |
| 5145 | Cute Red Industries | £ 61,322,810 | |
| 5146 | Cuthberts Coachworks | £ 596,602,678 | |
| 5147 | cutter | £ 37,900,521 | |
| 5148 | Cutting Down Trees | £ 55,370,240 | |
| 5149 | cvc | £ 5,541,924 | |
| 5150 | Cwm | £ 2,355,525 | |
| 5151 | CYAfergie | £ 6,790,092 | |
| 5152 | Cyanide | £ 93,319,153 | |
| 5153 | Cyber Death | £ 125,400,697 | |
| 5154 | Cyber Sharks | £ 82,973,600 | |
| 5155 | Cyber Tech | £ 3,349,487 | |
| 5156 | Cybercrime Specialists | £ 1,363,709,892 | |
| 5157 | cybercrimedetionunit | £ 1,429,198 | |
| 5158 | CyberDeath | £ 100,751,231 | |
| 5159 | Cyberdogs | £ 100,831,693 | |
| 5160 | Cyberdyne | £ 178,339,643 | |
| 5161 | Cyberdyne Corp. | £ 4,285,808 | |
| 5162 | cyberdyne inc. | £ 28,564 | |
| 5163 | Cyberdyne Systems | £ 3,061,652 | |
| 5164 | Cyberdyne Sytems | £ -1,386,763 | |
| 5165 | CyberLife | £ 1,417,404 | |
| 5166 | Cybernet | £ 50,000 | |
| 5167 | Cyberterrorism | £ 653,442,761 | |
| 5168 | Cyborg | £ 102,781,192 | |
| 5169 | Cyborgia Inc | £ 11,103,436 | |
| 5170 | cycle | £ 123,247,905 | |
| 5171 | Cycletour | £ 5,504,207 | |
| 5172 | Cyclone | £ 12,449,375 | |
| 5173 | Cyclonic energy | £ 53,352,325 | |
| 5174 | Cydonia | £ 4,972,116 | |
| 5175 | CYKA | £ 56,980,649 | |
| 5176 | CykaBlyat | £ 5,365,780 | |
| 5177 | Cylon | £ 79,057,234 | |
| 5178 | Cylons | £ 52,605,207 | |
| 5179 | Cymraeg | £ 10,964,960 | |
| 5180 | Cyprus | £ 546,672,653 | |
| 5181 | Cyrus Enterprise | £ 7,132,523 | |
| 5182 | Cyrus Enterprises | £ 4,353,444 | |
| 5183 | Cyrus Salad | £ 59,170,526 | |
| 5184 | Cytosport | £ -5,801,399 | |
| 5185 | czar | £ 4,304,081 | |
| 5186 | D Block | £ 1,449,974,172 | |
| 5187 | D Block Enterprise | £ 2,858,788 | |
| 5188 | D Corp | £ 1,873,647 | |
| 5189 | D E A T H | £ 168,604,204 | |
| 5190 | D-Bombs | £ 67,864,173 | |
| 5191 | D-Lo Enterprise | £ 1,291,954 | |
| 5192 | D.B. Cooper | £ 1,244,983,502 | |
| 5193 | D.E.A | £ 1,156,785 | |
| 5194 | D.E.A.T.H. | £ 64,610,420 | |
| 5195 | D.N.A | £ 208,502,808 | |
| 5196 | D12 | £ 223,076,441 | |
| 5197 | D3 Mighty Ducks | £ 692,402,618 | |
| 5198 | D3ATH | £ 117,088,242 | |
| 5199 | D3STRUCTI0N | £ 801,838,549 | |
| 5200 | D741 | £ 51,019,137 | |
