The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 5401 | clammys | £ 31,010 | |
| 5402 | Clan Fraser | £ 1,252,951,933 | |
| 5403 | Clan McLeod | £ 265,006,574 | |
| 5404 | Clandestine Ops | £ 9,642,983 | |
| 5405 | Clandestine Realty | £ 47,386,575 | |
| 5406 | Clans | £ 322,847,271 | |
| 5407 | Clans of Scotland | £ 491,180,760 | |
| 5408 | clap | £ 39,370,777 | |
| 5409 | Clarences Millions | £ 135,441,193 | |
| 5410 | ClaretAndGold | £ 5,503,516 | |
| 5411 | Clarion Ledger | £ 2,067,493 | |
| 5412 | Clarity | £ 2,668,290,320 | |
| 5413 | Clarity Web Solutions | £ 1,480,867 | |
| 5414 | Clark | £ 323,378,245 | |
| 5415 | Clarksons Farm | £ 48,753,144 | |
| 5416 | clarkyCorp | £ 4,826,048 | |
| 5417 | Class | £ 552,439,471 | |
| 5418 | Class A Drugs | £ 6,237,284 | |
| 5419 | Class A Swedge | £ 109,262,865 | |
| 5420 | Class B Associates | £ 77,503,522 | |
| 5421 | Class C LTD | £ 91,308,438 | |
| 5422 | Classified | £ 1,245,930,791 | |
| 5423 | Claustrophobia | £ 202,399,403 | |
| 5424 | Claverhouse | £ 482,534,969 | |
| 5425 | Claw Hammer | £ 171,833,671 | |
| 5426 | Clay | £ 25,588,820 | |
| 5427 | Clayton Nuclear Systems | £ 10,738,836 | |
| 5428 | Clean-Up Crew | £ 48,238,560 | |
| 5429 | Cleaners | £ 422,385,048 | |
| 5430 | cleanupcrew | £ 5,500,009 | |
| 5431 | CLEAR | £ 19,007,952 | |
| 5432 | Clear Creek | £ 212,731,716 | |
| 5433 | clearing wave | £ 4,941,203 | |
| 5434 | ClearSky | £ 38,384,556 | |
| 5435 | ClearWater | £ 50,000 | |
| 5436 | Cleasby co | £ 60,798,869 | |
| 5437 | Cleaving Offshore Ltd | £ 5,506,766 | |
| 5438 | Clem Fandango | £ 4,005,315,461 | |
| 5439 | Clementine | £ 119,480,884 | |
| 5440 | Clemenza | £ 300,858 | |
| 5441 | Cleveland | £ 274,388,319 | |
| 5442 | Cleveland Browns | £ 77,283,548 | |
| 5443 | Clever Names | £ 2,111,897,478 | |
| 5444 | Cleyra | £ 58,482,880 | |
| 5445 | Click | £ 5,502,877 | |
| 5446 | ClickClick | £ 3,938,259 | |
| 5447 | Cliffjumper | £ 189,583,070 | |
| 5448 | Climate | £ 184,200,853 | |
| 5449 | Climate Change | £ 322,888,160 | |
| 5450 | climber | £ 127,185,821 | |
| 5451 | CLIPPERMAN | £ 57,055,407 | |
| 5452 | Clitheroe | £ 415,850,956 | |
| 5453 | Clobber | £ 131,272,819 | |
| 5454 | clobber2 | £ 2,206,865 | |
| 5455 | Clock | £ 5,500,868 | |
| 5456 | Clocks | £ 50,000 | |
| 5457 | Clockwork Nexus | £ 5,751,012 | |
| 5458 | Cloggs | £ 2,840,593,717 | |
| 5459 | Clone Wars Co. | £ 4,237,523 | |
| 5460 | Clones | £ 112,130,494 | |
| 5461 | Clonrichert | £ 198,873 | |
| 5462 | Closeness | £ 483,867,814 | |
| 5463 | Clothing | £ 3,930,256 | |
| 5464 | Cloud | £ 39,844,708 | |
| 5465 | Cloud Bazaar | £ 50,000 | |
| 5466 | Clouds | £ 74,213,426 | |
| 5467 | cloudyyy | £ 3,872,271 | |
| 5468 | Clove Club | £ 296,641,292 | |
| 5469 | Cloven Hooves | £ 103,118,487 | |
| 5470 | Clowd Inc. | £ 52,949,730 | |
| 5471 | Clown School | £ 5,327,420 | |
| 5472 | Clown Town | £ -2,009,498 | |
| 5473 | Clowns | £ 45,149,976 | |
| 5474 | ClownsRfun | £ 21,446,367 | |
| 5475 | club | £ 515,017,210 | |
| 5476 | Club inc | £ 388,803 | |
| 5477 | Club Tropicana | £ 152,264,947 | |
| 5478 | Clubs | £ 396,550,674 | |
| 5479 | Cluedo | £ 4,906,330,896 | |
| 5480 | Clunge Enterprises | £ 1,967,611 | |
| 5481 | ClusterFartIndustries | £ 57,324,456 | |
| 5482 | ClusterShartIndustries | £ 54,287,012 | |
| 5483 | ClusterSmookIndustries | £ 57,924,163 | |
| 5484 | ClusterSmuckIndustries | £ 130,305,436 | |
| 5485 | ClusterSmutIndustries | £ 50,288,579 | |
| 5486 | Clyde | £ 483,848,084 | |
| 5487 | CMA | £ 32,179 | |
| 5488 | CMI | £ 66,993 | |
| 5489 | CMStu | £ 187,775 | |
| 5490 | Co-Op | £ 228,747,203 | |
| 5491 | Co-Operative | £ 1,439,413 | |
| 5492 | Co1 | £ 50,000 | |
| 5493 | CO2 | £ 3,507,780,268 | |
| 5494 | CO2 Fire Extinguisher | £ 76,941,240 | |
| 5495 | CO3 | £ 4,340,673,739 | |
| 5496 | Coach | £ 11,358,629 | |
| 5497 | Coach Purses | £ 69,514,582 | |
| 5498 | Coast toCoast | £ 227,236,801 | |
| 5499 | Coat Hanger | £ 21,523,460 | |
| 5500 | Coating | £ 470,957,791 | |
