The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 5301 | Class A Drugs | £ 6,237,284 | |
| 5302 | Class A Swedge | £ 109,262,865 | |
| 5303 | Class B Associates | £ 77,503,522 | |
| 5304 | Class C LTD | £ 91,308,438 | |
| 5305 | Classified | £ 1,245,930,791 | |
| 5306 | Claustrophobia | £ 202,399,403 | |
| 5307 | Claverhouse | £ 482,534,969 | |
| 5308 | Claw Hammer | £ 171,833,671 | |
| 5309 | Clay | £ 25,588,820 | |
| 5310 | Clayton Nuclear Systems | £ 10,738,836 | |
| 5311 | Clean-Up Crew | £ 48,238,560 | |
| 5312 | Cleaners | £ 422,385,048 | |
| 5313 | cleanupcrew | £ 5,500,009 | |
| 5314 | CLEAR | £ 19,007,952 | |
| 5315 | Clear Creek | £ 212,731,716 | |
| 5316 | clearing wave | £ 4,941,203 | |
| 5317 | ClearSky | £ 40,324,109 | |
| 5318 | ClearWater | £ 50,000 | |
| 5319 | Cleasby co | £ 60,798,869 | |
| 5320 | Cleaving Offshore Ltd | £ 5,506,766 | |
| 5321 | Clem Fandango | £ 3,970,293,943 | |
| 5322 | Clementine | £ 119,480,884 | |
| 5323 | Clemenza | £ 300,858 | |
| 5324 | Cleveland | £ 274,388,319 | |
| 5325 | Cleveland Browns | £ 77,283,548 | |
| 5326 | Clever Names | £ 2,111,897,478 | |
| 5327 | Cleyra | £ 58,482,880 | |
| 5328 | Click | £ 5,502,877 | |
| 5329 | ClickClick | £ 3,938,259 | |
| 5330 | Cliffjumper | £ 189,583,070 | |
| 5331 | Climate | £ 184,200,853 | |
| 5332 | Climate Change | £ 322,888,160 | |
| 5333 | climber | £ 127,185,821 | |
| 5334 | CLIPPERMAN | £ 57,055,407 | |
| 5335 | Clitheroe | £ 415,850,956 | |
| 5336 | Clobber | £ 131,272,819 | |
| 5337 | clobber2 | £ 2,206,865 | |
| 5338 | Clock | £ 5,500,868 | |
| 5339 | Clocks | £ 50,000 | |
| 5340 | Clockwork Nexus | £ 5,751,012 | |
| 5341 | Cloggs | £ 2,840,593,717 | |
| 5342 | Clone Wars Co. | £ 4,237,523 | |
| 5343 | Clones | £ 112,130,494 | |
| 5344 | Closeness | £ 483,867,814 | |
| 5345 | Clothing | £ 3,930,256 | |
| 5346 | Cloud | £ 39,844,708 | |
| 5347 | Cloud Bazaar | £ 50,000 | |
| 5348 | Clouds | £ 74,213,426 | |
| 5349 | cloudyyy | £ 3,872,271 | |
| 5350 | Clove Club | £ 296,641,292 | |
| 5351 | Cloven Hooves | £ 103,118,487 | |
| 5352 | Clowd Inc. | £ 52,949,730 | |
| 5353 | Clown School | £ 5,327,420 | |
| 5354 | Clown Town | £ -2,009,498 | |
| 5355 | Clowns | £ 45,149,976 | |
| 5356 | ClownsRfun | £ 21,446,367 | |
| 5357 | club | £ 515,017,210 | |
| 5358 | Club inc | £ 388,803 | |
| 5359 | Club Tropicana | £ 142,316,809 | |
| 5360 | Clubs | £ 347,050,674 | |
| 5361 | Cluedo | £ 4,906,330,896 | |
| 5362 | Clunge Enterprises | £ 1,967,611 | |
| 5363 | ClusterFartIndustries | £ 57,324,456 | |
| 5364 | ClusterShartIndustries | £ 54,287,012 | |
| 5365 | ClusterSmookIndustries | £ 57,924,163 | |
| 5366 | ClusterSmuckIndustries | £ 130,305,436 | |
| 5367 | ClusterSmutIndustries | £ 50,288,579 | |
| 5368 | Clyde | £ 391,529,409 | |
| 5369 | CMA | £ 32,179 | |
| 5370 | CMI | £ 66,993 | |
| 5371 | CMStu | £ 187,775 | |
| 5372 | Co-Op | £ 228,747,203 | |
| 5373 | Co-Operative | £ 1,439,413 | |
| 5374 | Co1 | £ 50,000 | |
| 5375 | CO2 | £ 3,507,780,268 | |
| 5376 | CO2 Fire Extinguisher | £ 3,239,004 | |
| 5377 | CO3 | £ 4,340,673,739 | |
| 5378 | Coach | £ 2,867,948 | |
| 5379 | Coach Purses | £ 69,514,582 | |
| 5380 | Coast toCoast | £ 227,236,801 | |
| 5381 | Coat Hanger | £ 21,523,460 | |
| 5382 | Coating | £ 470,957,791 | |
| 5383 | cob | £ 222,968,805 | |
| 5384 | Cobblers | £ 141,118,977 | |
| 5385 | Cobblewall | £ -821,738 | |
| 5386 | Cobra Dojo | £ 13,639,129 | |
| 5387 | Cobra.inc | £ 5,491,225 | |
| 5388 | Coca Cola | £ 65,429,607 | |
| 5389 | Coca-Cola Company | £ 7,712,659 | |
| 5390 | CocaCola | £ 51,851,745 | |
| 5391 | Cocaine | £ 298,622,868 | |
| 5392 | CocaineCowboys | £ 2,581,891 | |
| 5393 | Cock Blocked | £ 34,941,635 | |
| 5394 | Cockermouth | £ 2,450,000 | |
| 5395 | Cockney corporation 3 | £ 28,108,729 | |
| 5396 | Cockney Corporation 4 | £ 53,944,040 | |
| 5397 | Cockrels | £ 4,976,486 | |
| 5398 | Cockroach city | £ -5,701,427 | |
| 5399 | Coco | £ 28,629,337 | |
| 5400 | Coco Cat | £ 56,793,257 | |
