The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 20801 | Uninformed Players | £ 1,549,564 | |
| 20802 | Unintended Consequences | £ 471,650,760 | |
| 20803 | Union Depository | £ 481,043 | |
| 20804 | unique state | £ 5,502,813 | |
| 20805 | UNIT | £ 10,172,688 | |
| 20806 | United Irishmen | £ 21,870,609 | |
| 20807 | united kingdom | £ 11,728,775 | |
| 20808 | United Nations | £ 7,828,573 | |
| 20809 | United States | £ 198,989,898 | |
| 20810 | United States Education | £ 733,211 | |
| 20811 | United States of America | £ 27,418,627 | |
| 20812 | UNITED WORLD | £ 7,387,638 | |
| 20813 | univers | £ 311,111,849 | |
| 20814 | Universal Exports | £ 126,418,183 | |
| 20815 | Universal Society | £ 5,027,286 | |
| 20816 | Universal Society 2 | £ 1,428,063 | |
| 20817 | Universal Society 3 | £ 1,423,329 | |
| 20818 | Universal Society 4 | £ 972,309 | |
| 20819 | Universal Studio | £ 133,197,634 | |
| 20820 | university | £ 44,482,778 | |
| 20821 | Univex | £ 6,299,220 | |
| 20822 | Unk | £ 2,424,250 | |
| 20823 | Unknown | £ 322,457 | |
| 20824 | Unknown Targets | £ 55,046,887 | |
| 20825 | Unknowns | £ 188,825,518 | |
| 20826 | unlimited | £ 273,952,991 | |
| 20827 | Unlimited Frys | £ 50,000 | |
| 20828 | Unlucky | £ 354,501,593 | |
| 20829 | Unmarked Bills | £ 935,986,128 | |
| 20830 | Unnecessary Violence | £ 38,817,254 | |
| 20831 | unowned | £ 6,390,326 | |
| 20832 | Unpleasant Experiences | £ 101,588,639 | |
| 20833 | Unprecedented Times | £ 443,995,872 | |
| 20834 | unrban | £ 74,481,197 | |
| 20835 | unrevealing | £ 2,265,073,809 | |
| 20836 | unrivaled medicine god | £ 3,807,749 | |
| 20837 | UNSC | £ 56,471,838 | |
| 20838 | Unseen University | £ 39,525,264 | |
| 20839 | unseenergy | £ 729,397,728 | |
| 20840 | Unstoppable Force | £ 1,034,978,439 | |
| 20841 | Until Provoked | £ 63,748,480 | |
| 20842 | Untouchable | £ 1,927,661,175 | |
| 20843 | Unusual Oil | £ 4,142,663 | |
| 20844 | unwashed socks | £ 53,038,556 | |
| 20845 | Up Miami | £ 58,708,665 | |
| 20846 | Up Ur Ars | £ -117,752 | |
| 20847 | Upon A Time | £ 9,966,788 | |
| 20848 | Ups And Downs | £ 43,065,649 | |
| 20849 | Upstairs | £ 3,509,641 | |
| 20850 | uptheblues | £ 2,657,143 | |
| 20851 | Upyours.org | £ 2,405,714 | |
| 20852 | ur mom | £ -16,959 | |
| 20853 | Ur Useless Existance | £ 13,362,410 | |
| 20854 | Uranoid | £ 34,587,370 | |
| 20855 | Uranus | £ 59,235,341 | |
| 20856 | Urban | £ 3,980,563 | |
| 20857 | Urban Decay | £ 64,906,831 | |
| 20858 | Urban Legend | £ 245,826,174 | |
| 20859 | Urban Sprawl 1 | £ 41,626,796 | |
| 20860 | Urban Sprawl 2 | £ 46,356,289 | |
| 20861 | Urban Sprawl 3 | £ 41,345,765 | |
| 20862 | Urban Sprawl 4 | £ 41,445,746 | |
| 20863 | Urban Warfare | £ 6,352,781 | |
| 20864 | UrDestruction | £ 155,736,739 | |
| 20865 | Urgency | £ 185,600,958 | |
| 20866 | urmumshouse | £ 40,309,143 | |
| 20867 | UrNightmare | £ 100,535,940 | |
| 20868 | Ursula | £ 2,507,365 | |
| 20869 | Uruguay | £ 20,112,119 | |
| 20870 | Us All | £ 47,081,035 | |
| 20871 | US drinking age | £ 965,869,497 | |
| 20872 | Us is in the wrong | £ 59,155,406 | |
| 20873 | us marines | £ 59,366,445 | |
| 20874 | US UK OZ EUROPE | £ 178,021,878 | |
| 20875 | US1 | £ 224,823,211 | |
| 20876 | usa | £ 29,557,811 | |
| 20877 | Usain Bolt | £ 133,735,358 | |
| 20878 | Use | £ 57,202,659 | |
| 20879 | usedcarshowroom | £ 12,175,667 | |
| 20880 | Useing Scissors | £ 70,500,800 | |
| 20881 | USPS | £ 373,638,849 | |
| 20882 | USS America | £ 578,777,848 | |
| 20883 | USS Behemoth | £ 814,991 | |
| 20884 | USS Discovery | £ 642,165 | |
| 20885 | USS Enterprise | £ 582,804,123 | |
| 20886 | USS Orion | £ 1,060,631 | |
| 20887 | USS Razor | £ 815,790 | |
| 20888 | USS Voyager | £ 1,922,144 | |
| 20889 | ussss | £ 225,396,551 | |
| 20890 | Utd | £ 1,538,860 | |
| 20891 | UTF Industries | £ -6,680,402 | |
| 20892 | Utmost Importance | £ 10,423,102 | |
| 20893 | Utopia | £ 587,391,216 | |
| 20894 | Utopia2 | £ 19,520,009 | |
| 20895 | Utopia3 | £ 19,612,004 | |
| 20896 | Utopia4 | £ 92,387,139 | |
| 20897 | Utter Chaos | £ 3,191,939,265 | |
| 20898 | UU 14 | £ 7,867,236 | |
| 20899 | UuUuUuU | £ 218,716,449 | |
| 20900 | UVB-76 | £ 6,442,326,086 | |
