The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 4901 | Citizen | £ 201,127,159 | |
| 4902 | Citizen Cain | £ 238,549,281 | |
| 4903 | Citizenship | £ 171,046,340 | |
| 4904 | Citrus Punch Oasis | £ 37,050,866 | |
| 4905 | City Builders Inc1 | £ 7,970,900 | |
| 4906 | City Builders Inc2 | £ 8,306,455 | |
| 4907 | City Dweller | £ 35,972,446 | |
| 4908 | City Hall | £ 889,692,337 | |
| 4909 | City of Dread | £ 50,000 | |
| 4910 | City Walls | £ 4,568,939 | |
| 4911 | City Wok | £ 118,359 | |
| 4912 | City Wok12 | £ 149,851,702 | |
| 4913 | cityoffspring | £ 22,903,783 | |
| 4914 | CitySuper | £ 141,731,850 | |
| 4915 | CiviIization | £ 813,053,096 | |
| 4916 | Civil Protector | £ 6,430,641 | |
| 4917 | Civilisation | £ 253,003,716 | |
| 4918 | Civilization | £ 9,053,657 | |
| 4919 | CKLOWSMALL | £ 6,269,586 | |
| 4920 | CKLOWSMALL1 | £ 4,211,613 | |
| 4921 | CKLOWSMALL2 | £ 7,574,241 | |
| 4922 | CKLOWSMALL3 | £ 4,096,706 | |
| 4923 | claim.co | £ 153,066,098 | |
| 4924 | Clairvoyance | £ 222,707,023 | |
| 4925 | clam burger | £ -2,190,512 | |
| 4926 | clammys | £ 31,010 | |
| 4927 | Clan McLeod | £ 54,275,640 | |
| 4928 | Clandestine Ops | £ 9,642,983 | |
| 4929 | Clandestine Realty | £ 47,386,575 | |
| 4930 | Clans | £ 322,847,271 | |
| 4931 | Clans of Scotland | £ 491,180,760 | |
| 4932 | Clarences Millions | £ 135,441,193 | |
| 4933 | ClaretAndGold | £ 5,503,516 | |
| 4934 | Clarion Ledger | £ 2,067,493 | |
| 4935 | Clarity | £ 4,202,231,857 | |
| 4936 | Clarity Web Solutions | £ 1,480,867 | |
| 4937 | clarkyCorp | £ 4,826,048 | |
| 4938 | Class | £ 552,455,421 | |
| 4939 | Class A Drugs | £ 6,237,284 | |
| 4940 | Class A Swedge | £ 109,262,865 | |
| 4941 | Class B Associates | £ 77,503,522 | |
| 4942 | Class C LTD | £ 91,308,438 | |
| 4943 | Classified | £ 1,071,141,335 | |
| 4944 | Claustrophobia | £ 202,399,403 | |
| 4945 | Claverhouse | £ 482,534,969 | |
| 4946 | Claw Hammer | £ 171,833,671 | |
| 4947 | Clay | £ 25,588,820 | |
| 4948 | Clayton Nuclear Systems | £ 10,738,836 | |
| 4949 | Clean-Up Crew | £ 48,238,560 | |
| 4950 | Cleaners | £ 422,385,048 | |
| 4951 | Cleanup Crew Inc | £ 12,010,478 | |
| 4952 | cleanupcrew | £ 5,500,009 | |
| 4953 | CLEAR | £ 19,007,952 | |
| 4954 | Clear Creek | £ 200,022,307 | |
| 4955 | clearing wave | £ 4,941,203 | |
| 4956 | ClearWater | £ 50,000 | |
| 4957 | Clearwater Asylum | £ 58,690,074 | |
| 4958 | Cleasby co | £ 60,798,869 | |
| 4959 | cleat feet | £ 34,715,203 | |
| 4960 | Cleaving Offshore Ltd | £ 5,506,766 | |
| 4961 | Clementine | £ 119,480,884 | |
| 4962 | Clemenza | £ 300,858 | |
| 4963 | Cleveland | £ 274,388,319 | |
| 4964 | Cleveland Browns | £ 77,283,548 | |
| 4965 | Clever Names | £ 2,111,897,478 | |
| 4966 | Cleyra | £ 58,482,880 | |
| 4967 | Click | £ 5,502,877 | |
| 4968 | ClickClick | £ 3,938,259 | |
| 4969 | Cliff Chips | £ 2,960,213 | |
| 4970 | Cliffjumper | £ 189,583,070 | |
| 4971 | Climate | £ 184,200,853 | |
| 4972 | Climate Change | £ 322,888,160 | |
| 4973 | climber | £ 127,185,821 | |
| 4974 | CLIPPERMAN | £ 57,055,407 | |
| 4975 | Clitheroe | £ 415,850,956 | |
| 4976 | Clobber | £ 131,272,819 | |
| 4977 | clobber2 | £ 2,206,865 | |
| 4978 | Clock | £ 5,500,868 | |
| 4979 | Clocks | £ 50,000 | |
| 4980 | Clockwork Orange | £ 49,740,749 | |
| 4981 | Cloggs | £ 2,845,474,034 | |
| 4982 | Clones | £ 112,130,494 | |
| 4983 | Closeness | £ 483,867,814 | |
| 4984 | Clothing | £ 3,930,256 | |
| 4985 | Cloud | £ 39,844,708 | |
| 4986 | Clouds | £ 74,213,426 | |
| 4987 | cloudyyy | £ 3,872,271 | |
| 4988 | Clove Club | £ 296,641,292 | |
| 4989 | Cloven Hooves | £ 103,118,487 | |
| 4990 | Clowd Inc. | £ 52,949,730 | |
| 4991 | Clown School | £ 5,327,420 | |
| 4992 | Clown Town | £ -2,009,498 | |
| 4993 | Clowns | £ 45,149,976 | |
| 4994 | ClownsRfun | £ 21,446,367 | |
| 4995 | club | £ 515,017,210 | |
| 4996 | Club inc | £ 388,803 | |
| 4997 | Club Music | £ 36,478,492 | |
| 4998 | Clubs | £ 134,994 | |
| 4999 | Cluedo | £ 4,906,330,896 | |
| 5000 | Clunge Enterprises | £ 1,967,611 | |
