The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 4701 | City Walls | £ 4,568,939 | |
| 4702 | City Wok | £ 118,359 | |
| 4703 | City Wok12 | £ 149,851,702 | |
| 4704 | cityoffspring | £ 22,903,783 | |
| 4705 | CitySuper | £ 141,731,850 | |
| 4706 | CiviIization | £ 813,053,096 | |
| 4707 | Civil Protector | £ 6,430,641 | |
| 4708 | Civilisation | £ 253,003,716 | |
| 4709 | Civilization | £ 9,053,657 | |
| 4710 | CKLOWSMALL | £ 6,269,586 | |
| 4711 | CKLOWSMALL1 | £ 4,211,613 | |
| 4712 | CKLOWSMALL2 | £ 7,574,241 | |
| 4713 | CKLOWSMALL3 | £ 4,096,706 | |
| 4714 | claim.co | £ 153,066,098 | |
| 4715 | Clairvoyance | £ 222,707,023 | |
| 4716 | clam burger | £ -2,190,512 | |
| 4717 | clammys | £ 31,010 | |
| 4718 | Clandestine Ops | £ 9,642,983 | |
| 4719 | Clans | £ 322,847,271 | |
| 4720 | Clans of Scotland | £ 491,180,760 | |
| 4721 | Clarences Millions | £ 135,441,193 | |
| 4722 | ClaretAndGold | £ 5,503,516 | |
| 4723 | Clarion Ledger | £ 2,067,493 | |
| 4724 | Clarity | £ 4,120,405,105 | |
| 4725 | Clarity Web Solutions | £ 1,480,867 | |
| 4726 | clarkyCorp | £ 4,826,048 | |
| 4727 | Class | £ 552,455,421 | |
| 4728 | Class A Drugs | £ 6,237,284 | |
| 4729 | Class A Swedge | £ 109,262,865 | |
| 4730 | Class B Associates | £ 77,503,522 | |
| 4731 | Class C LTD | £ 91,308,438 | |
| 4732 | Classified | £ 817,098,576 | |
| 4733 | Claustrophobia | £ 246,224,168 | |
| 4734 | Claverhouse | £ 482,534,969 | |
| 4735 | Claw Hammer | £ 171,833,671 | |
| 4736 | Clay | £ 25,588,820 | |
| 4737 | Clayton Nuclear Systems | £ 10,738,836 | |
| 4738 | Clean-Up Crew | £ 48,238,560 | |
| 4739 | Cleaners | £ 422,385,048 | |
| 4740 | Cleanup Crew Inc | £ 12,010,478 | |
| 4741 | cleanupcrew | £ 5,500,009 | |
| 4742 | CLEAR | £ 19,007,952 | |
| 4743 | Clear Creek | £ 199,671,429 | |
| 4744 | clearing wave | £ 4,941,203 | |
| 4745 | ClearWater | £ 50,000 | |
| 4746 | Clearwater Asylum | £ 58,690,074 | |
| 4747 | Cleasby co | £ 60,798,869 | |
| 4748 | Cleaving Offshore Ltd | £ 5,506,766 | |
| 4749 | Clementine | £ 119,480,884 | |
| 4750 | Clemenza | £ 300,858 | |
| 4751 | Cleveland | £ 274,388,319 | |
| 4752 | Cleveland Browns | £ 77,283,548 | |
| 4753 | Clever Names | £ 2,111,897,478 | |
| 4754 | Cleyra | £ 58,482,880 | |
| 4755 | Click | £ 5,502,877 | |
| 4756 | ClickClick | £ 3,938,259 | |
| 4757 | Cliff Chips | £ 2,960,213 | |
| 4758 | Cliffjumper | £ 189,583,070 | |
| 4759 | Climate | £ 184,200,853 | |
| 4760 | Climate Change | £ 322,888,160 | |
| 4761 | climber | £ 127,185,821 | |
| 4762 | CLIPPERMAN | £ 57,055,407 | |
| 4763 | Clitheroe | £ 415,850,956 | |
| 4764 | Clobber | £ 128,106,651 | |
| 4765 | clobber2 | £ 2,206,865 | |
| 4766 | Clock | £ 5,500,868 | |
| 4767 | Clocks | £ 50,000 | |
| 4768 | Clockwork | £ 78,996,049 | |
| 4769 | Cloggs | £ 2,672,737,522 | |
| 4770 | Clones | £ 112,130,494 | |
| 4771 | Closeness | £ 483,867,814 | |
| 4772 | Clothing | £ 3,930,256 | |
| 4773 | Cloud | £ 39,844,708 | |
| 4774 | cloud9 | £ -123,897 | |
| 4775 | Clouds | £ 74,213,426 | |
| 4776 | cloudyyy | £ 3,872,271 | |
| 4777 | Clove Club | £ 296,641,292 | |
| 4778 | Cloven Hooves | £ 1,932,803 | |
| 4779 | Clowd Inc. | £ 52,949,730 | |
| 4780 | Clown School | £ 5,327,420 | |
| 4781 | Clown Town | £ -2,009,498 | |
| 4782 | Clowns | £ 45,149,976 | |
| 4783 | ClownsRfun | £ 21,446,367 | |
| 4784 | club | £ 515,017,210 | |
| 4785 | Club inc | £ 388,803 | |
| 4786 | Club Music | £ 36,478,492 | |
| 4787 | Clubs | £ 134,994 | |
| 4788 | Cluedo | £ 4,905,564,897 | |
| 4789 | Clunge Enterprises | £ 1,967,611 | |
| 4790 | Clyde | £ 5,502,200 | |
| 4791 | Clyde Ventures | £ 65,091,418 | |
| 4792 | CMA | £ 32,179 | |
| 4793 | CMI | £ 66,993 | |
| 4794 | CMStu | £ 187,775 | |
| 4795 | Cnut | £ 3,883,001 | |
| 4796 | Co-Op | £ 109,470,329 | |
| 4797 | Co-Operative | £ 1,439,413 | |
| 4798 | Co1 | £ 50,000 | |
| 4799 | CO2 | £ 1,683,400,734 | |
| 4800 | CO3 | £ 1,975,335,039 | |
