The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 18801 | Treacle Mining Inc. | £ 61,103,035 | |
| 18802 | Treacle Mining Ltd | £ 50,000 | |
| 18803 | Treacle Tart | £ 4,355,630 | |
| 18804 | Treasure | £ 57,810,180 | |
| 18805 | Tree Fellers | £ -1,919 | |
| 18806 | Tree1 | £ 3,735,610 | |
| 18807 | TreeFellas LTD | £ 1,234,382 | |
| 18808 | Treehorn Production inc | £ 732,257 | |
| 18809 | Trembler | £ 218,082,732 | |
| 18810 | Tremont-U | £ 5,876,385 | |
| 18811 | tremor | £ 3,657,431 | |
| 18812 | tremper | £ 6,867,566 | |
| 18813 | tremper14 | £ 590,827 | |
| 18814 | Tremper5 | £ 1,595,170 | |
| 18815 | Tremper514 | £ 2,209,187 | |
| 18816 | Tremper55 | £ 2,088,959 | |
| 18817 | Treno | £ 30,509,234 | |
| 18818 | Trevor Philips Enterpris | £ 505,264,845 | |
| 18819 | Trevor Philips Ind | £ 18,654,595 | |
| 18820 | treyui | £ 50,000 | |
| 18821 | Trial and Error | £ 5,503,869 | |
| 18822 | Trial of da weak | £ -714,569 | |
| 18823 | triangle tabel | £ 22,520,260 | |
| 18824 | Triangles | £ 4,772,454 | |
| 18825 | Tribal | £ 17,956,779 | |
| 18826 | Tribbleton | £ -48,897,651 | |
| 18827 | Tribecastanza | £ 65,270,480 | |
| 18828 | Tribes | £ 605,556 | |
| 18829 | trichomonas | £ 53,660,150 | |
| 18830 | Trickery | £ 4,965,405 | |
| 18831 | Tricks | £ 57,693,424 | |
| 18832 | Trickster | £ 934,403 | |
| 18833 | TrickstersGirl | £ 4,421,533 | |
| 18834 | Tricky Inc | £ 312,099 | |
| 18835 | TriCoMoon | £ 3,499,244 | |
| 18836 | Trident | £ 185,815,436 | |
| 18837 | Triflex Studios | £ 1,890,437 | |
| 18838 | Triforce Technologies | £ 62,658,328 | |
| 18839 | trigga | £ 5,501,257 | |
| 18840 | Trigger Happy TV | £ 64,164,302 | |
| 18841 | trikadoc ent | £ -2,621,474 | |
| 18842 | Trilateral Commission | £ 186,675,837 | |
| 18843 | Trinitrotoluene | £ 3,530,809 | |
| 18844 | Trinkets plus | £ 8,206,487 | |
| 18845 | Triple | £ 5,224,648 | |
| 18846 | Triple X | £ 2,931,494 | |
| 18847 | Triple X Corp | £ 56,715,793 | |
| 18848 | Tripoli | £ 243,643,476 | |
| 18849 | Trippin | £ 22,850,724 | |
| 18850 | Triton Psychedelics | £ 1,559,120 | |
| 18851 | Triumvirate | £ 7,729,029 | |
| 18852 | Trivia | £ 453,690,566 | |
| 18853 | Trixies Treats | £ 50,000 | |
| 18854 | Troglodyte LTD | £ 50,000 | |
| 18855 | Trogs | £ 6,235,872 | |
| 18856 | Trojan | £ 782,738,386 | |
| 18857 | Troll Bombings | £ 5,503,910 | |
| 18858 | Trollaris | £ 4,793,390 | |
| 18859 | Trolling | £ 57,211,849 | |
| 18860 | Trollolol | £ 3,547,461 | |
| 18861 | Trolls | £ 54,025,363 | |
| 18862 | trooper | £ 337,223,772 | |
| 18863 | Trop Space | £ 2,140,130,898 | |
| 18864 | Tropica | £ 4,394,369 | |
| 18865 | Tropico 2 | £ 56,381 | |
| 18866 | Tror | £ 43,278,856 | |
| 18867 | Troter international | £ 50,000 | |
| 18868 | Trotters | £ 5,498,497 | |
| 18869 | Trotters inc | £ 13,957,991 | |
| 18870 | Trotters international | £ 13,260,602 | |
| 18871 | Troubble | £ 133,354,101 | |
| 18872 | Troubblesome | £ 216,163,132 | |
| 18873 | Trouble | £ 171,082,605 | |
| 18874 | TROUBLE 3 | £ 391,602,932 | |
| 18875 | Trouble Inc | £ 11,653,378 | |
| 18876 | Trouble While You Sleep | £ 467,211,735 | |
| 18877 | Troubled Waters | £ 337,266,459 | |
| 18878 | Troubles | £ 108,320,503 | |
| 18879 | Troublesome Child | £ 17,324,426 | |
| 18880 | trout | £ 3,458,234 | |
| 18881 | TroviNation Enterprises | £ 4,050,572 | |
| 18882 | Troy | £ 216,061,136 | |
| 18883 | Truce | £ 9,139,710 | |
| 18884 | truckers paradise | £ 4,706 | |
| 18885 | Truckin Inc | £ 13,603,438 | |
| 18886 | Trucksss | £ 1,608,350 | |
| 18887 | True Blood | £ 4,304,191 | |
| 18888 | True Evil | £ 120,130,007 | |
| 18889 | True Freedom | £ 331,358,368 | |
| 18890 | True lies | £ 848,394,327 | |
| 18891 | Truffes Fantaisie | £ 50,000 | |
| 18892 | Trump | £ 599,036,587 | |
| 18893 | Trump ENT | £ 2,351,912 | |
| 18894 | Trump ENT2 | £ -22,402,397 | |
| 18895 | Trump ENT3 | £ 13,903,851 | |
| 18896 | Trump ENT4 | £ 58,354,262 | |
| 18897 | Trump It Up | £ 207,345,671 | |
| 18898 | Trump Organization | £ 50,000 | |
| 18899 | Trump Towers | £ 5,651,661 | |
| 18900 | Trumpets | £ 92,470,752 | |
