The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 4401 | Civil Protector | £ 6,430,641 | |
| 4402 | Civilisation | £ 253,003,716 | |
| 4403 | Civilization | £ 9,053,657 | |
| 4404 | CKLOWSMALL | £ 6,269,586 | |
| 4405 | CKLOWSMALL1 | £ 4,211,613 | |
| 4406 | CKLOWSMALL2 | £ 7,217,449 | |
| 4407 | CKLOWSMALL3 | £ 4,096,706 | |
| 4408 | claim.co | £ 153,066,098 | |
| 4409 | Clairvoyance | £ 222,707,023 | |
| 4410 | clam burger | £ -2,190,512 | |
| 4411 | clammys | £ 31,010 | |
| 4412 | Clandestine Ops | £ 9,642,983 | |
| 4413 | Clans | £ 322,847,271 | |
| 4414 | Clans of Scotland | £ 491,180,760 | |
| 4415 | Clarences Millions | £ 135,441,193 | |
| 4416 | ClaretAndGold | £ 5,503,516 | |
| 4417 | Clarion Ledger | £ 2,067,493 | |
| 4418 | Clarity | £ 4,120,405,105 | |
| 4419 | Clarity Web Solutions | £ 1,480,867 | |
| 4420 | clarkyCorp | £ 4,826,048 | |
| 4421 | Class | £ 552,455,421 | |
| 4422 | Class A Drugs | £ 6,237,284 | |
| 4423 | Class A Swedge | £ 109,262,865 | |
| 4424 | Class B Associates | £ 77,503,522 | |
| 4425 | Class C LTD | £ 91,308,438 | |
| 4426 | Classified | £ 817,100,376 | |
| 4427 | Claustrophobia | £ 263,084,502 | |
| 4428 | Claverhouse | £ 482,534,969 | |
| 4429 | Claw Hammer | £ 171,833,671 | |
| 4430 | Clay | £ 25,588,820 | |
| 4431 | Clayton Nuclear Systems | £ 10,738,836 | |
| 4432 | Clean-Up Crew | £ 48,238,560 | |
| 4433 | Cleaners | £ 422,385,048 | |
| 4434 | Cleanup Crew Inc | £ 12,010,478 | |
| 4435 | cleanupcrew | £ 5,500,009 | |
| 4436 | CLEAR | £ 19,007,952 | |
| 4437 | Clear Creek | £ 201,191,490 | |
| 4438 | clearing wave | £ 4,941,203 | |
| 4439 | ClearWater | £ 50,000 | |
| 4440 | Clearwater Asylum | £ 58,690,074 | |
| 4441 | Cleasby co | £ 60,798,869 | |
| 4442 | Cleaving Offshore Ltd | £ 5,506,766 | |
| 4443 | Clementine | £ 119,480,884 | |
| 4444 | Clemenza | £ 300,858 | |
| 4445 | Cleveland | £ 274,388,319 | |
| 4446 | Cleveland Browns | £ 77,283,548 | |
| 4447 | Clever Names | £ 2,111,897,478 | |
| 4448 | Cleyra | £ 58,482,880 | |
| 4449 | Click | £ 5,502,877 | |
| 4450 | ClickClick | £ 3,938,259 | |
| 4451 | Cliffjumper | £ 189,583,070 | |
| 4452 | Climate | £ 184,200,853 | |
| 4453 | Climate Change | £ 322,888,160 | |
| 4454 | climber | £ 127,185,821 | |
| 4455 | CLIPPERMAN | £ 54,163,698 | |
| 4456 | Clitheroe | £ 415,850,956 | |
| 4457 | Clobber | £ 128,106,651 | |
| 4458 | Clock | £ 5,500,868 | |
| 4459 | Clocks | £ 50,000 | |
| 4460 | Clockwork | £ 52,010,449 | |
| 4461 | Cloggs | £ 2,478,379,124 | |
| 4462 | Clones | £ 112,130,494 | |
| 4463 | Closeness | £ 483,867,814 | |
| 4464 | Clothing | £ 3,930,256 | |
| 4465 | Cloud | £ 39,844,708 | |
| 4466 | cloud9 | £ -123,897 | |
| 4467 | Clouds | £ 74,213,426 | |
| 4468 | cloudyyy | £ 3,872,271 | |
| 4469 | Clove Club | £ 296,641,292 | |
| 4470 | Clowd Inc. | £ 52,949,730 | |
| 4471 | CLOWN | £ 753,363 | |
| 4472 | Clown School | £ 5,327,420 | |
| 4473 | Clown Town | £ -2,009,498 | |
| 4474 | Clowns | £ 45,149,976 | |
| 4475 | ClownsRfun | £ 21,446,367 | |
| 4476 | club | £ 515,017,210 | |
| 4477 | Club inc | £ 388,803 | |
| 4478 | Club Music | £ 36,478,492 | |
| 4479 | Clubs | £ 134,994 | |
| 4480 | Cluedo | £ 3,090,488,571 | |
| 4481 | Clunge Enterprises | £ 1,967,611 | |
| 4482 | Clyde | £ 5,502,200 | |
| 4483 | Clyde Ventures | £ 65,091,418 | |
| 4484 | CMA | £ 32,179 | |
| 4485 | CMI | £ 66,993 | |
| 4486 | CMStu | £ 187,775 | |
| 4487 | Cnut | £ 3,883,001 | |
| 4488 | Co-Op | £ 109,470,329 | |
| 4489 | Co1 | £ 50,000 | |
| 4490 | CO2 | £ 469,996,397 | |
| 4491 | CO3 | £ 460,706,106 | |
| 4492 | Coach Party | £ 3,049,427 | |
| 4493 | Coach Purses | £ 69,514,582 | |
| 4494 | Coast toCoast | £ 227,236,801 | |
| 4495 | Coat Hanger | £ 21,523,460 | |
| 4496 | Coating | £ 470,957,791 | |
| 4497 | cob | £ 222,968,805 | |
| 4498 | Cobblers | £ 141,118,977 | |
| 4499 | Cobblewall | £ -821,738 | |
| 4500 | Cobra Dojo | £ 13,639,129 | |
