The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 18001 | Treacle Mining Inc. | £ 61,103,035 | |
| 18002 | Treacle Mining Ltd | £ 50,000 | |
| 18003 | Treacle Tart | £ 4,355,630 | |
| 18004 | Treasure | £ 57,810,180 | |
| 18005 | Tree Fellers | £ -1,919 | |
| 18006 | Tree1 | £ 3,735,610 | |
| 18007 | TreeFellas LTD | £ 1,234,382 | |
| 18008 | Treehorn Production inc | £ 732,257 | |
| 18009 | Trembler | £ 218,082,732 | |
| 18010 | Tremont-U | £ 4,517,548 | |
| 18011 | tremor | £ 3,657,431 | |
| 18012 | tremper | £ 6,867,566 | |
| 18013 | tremper14 | £ 590,827 | |
| 18014 | Tremper5 | £ 1,595,170 | |
| 18015 | Tremper514 | £ 2,209,187 | |
| 18016 | Tremper55 | £ 2,088,959 | |
| 18017 | Trevor Philips Enterpris | £ 505,264,845 | |
| 18018 | treyui | £ 50,000 | |
| 18019 | Trial and Error | £ 5,503,869 | |
| 18020 | Trial of da weak | £ -714,569 | |
| 18021 | triangle tabel | £ 22,520,260 | |
| 18022 | Triangles | £ 4,772,454 | |
| 18023 | Tribal | £ 17,956,779 | |
| 18024 | Tribbleton | £ -48,897,651 | |
| 18025 | Tribecastanza | £ 65,270,480 | |
| 18026 | Tribes | £ 605,556 | |
| 18027 | trichomonas | £ 53,660,150 | |
| 18028 | Trickery | £ 4,965,405 | |
| 18029 | Tricks | £ 57,693,424 | |
| 18030 | Trickster | £ 934,403 | |
| 18031 | TrickstersGirl | £ 4,421,533 | |
| 18032 | Tricky Inc | £ 312,099 | |
| 18033 | TriCoMoon | £ 3,499,244 | |
| 18034 | Trident | £ 185,815,436 | |
| 18035 | Triflex Studios | £ 1,890,437 | |
| 18036 | Triforce Technologies | £ 62,658,328 | |
| 18037 | trigga | £ 5,501,257 | |
| 18038 | Trigger Happy TV | £ 64,164,302 | |
| 18039 | trikadoc ent | £ -2,621,474 | |
| 18040 | Trilateral Commission | £ 186,675,837 | |
| 18041 | Trinitrotoluene | £ 3,530,809 | |
| 18042 | Trinkets plus | £ 8,206,487 | |
| 18043 | Triple | £ 5,224,648 | |
| 18044 | Triple X | £ 2,931,494 | |
| 18045 | Triple X Corp | £ 56,715,793 | |
| 18046 | Tripoli | £ 78,381,205 | |
| 18047 | Trippin | £ 22,850,724 | |
| 18048 | Triton Psychedelics | £ 1,559,120 | |
| 18049 | Triumvirate | £ 7,729,029 | |
| 18050 | Trivia | £ 453,690,566 | |
| 18051 | Trixies Treats | £ 50,000 | |
| 18052 | Troglodyte LTD | £ 50,000 | |
| 18053 | Trogs | £ 6,235,872 | |
| 18054 | Trojan | £ 215,507,346 | |
| 18055 | Troll Bombings | £ 5,503,910 | |
| 18056 | Trollaris | £ 4,793,390 | |
| 18057 | Trolling | £ 57,211,849 | |
| 18058 | Trollolol | £ 3,547,461 | |
| 18059 | Trolls | £ 54,025,363 | |
| 18060 | trooper | £ 337,223,772 | |
| 18061 | Trop Space | £ 1,812,860,251 | |
| 18062 | Tropica | £ 4,394,369 | |
| 18063 | TROPICO | £ 41,774,749 | |
| 18064 | Tropico 2 | £ 56,381 | |
| 18065 | Tror | £ 43,278,856 | |
| 18066 | Troter international | £ 50,000 | |
| 18067 | Trotters | £ 5,498,497 | |
| 18068 | Trotters inc | £ 13,957,991 | |
| 18069 | Trotters international | £ 13,260,602 | |
| 18070 | Troubble | £ 133,354,101 | |
| 18071 | Troubblesome | £ 216,163,132 | |
| 18072 | Trouble | £ 171,082,605 | |
| 18073 | TROUBLE 3 | £ 391,602,932 | |
| 18074 | Trouble Inc | £ 11,653,378 | |
| 18075 | Trouble While You Sleep | £ 340,797,723 | |
| 18076 | Troubled Waters | £ 327,257,906 | |
| 18077 | Troubles | £ 59,253,750 | |
| 18078 | Troublesome Child | £ 17,324,426 | |
| 18079 | trout | £ 3,458,234 | |
| 18080 | Troy | £ 216,061,136 | |
| 18081 | Truce | £ 9,139,710 | |
| 18082 | truckers paradise | £ 4,706 | |
| 18083 | Truckin Inc | £ 13,603,438 | |
| 18084 | Trucksss | £ 1,608,350 | |
| 18085 | True Blood | £ 4,304,191 | |
| 18086 | True Evil | £ 120,130,007 | |
| 18087 | True Freedom | £ 269,113,966 | |
| 18088 | True lies | £ 848,394,327 | |
| 18089 | Truffes Fantaisie | £ 50,000 | |
| 18090 | Trump | £ 596,053,208 | |
| 18091 | Trump ENT | £ 2,351,912 | |
| 18092 | Trump ENT2 | £ -22,402,397 | |
| 18093 | Trump ENT3 | £ 13,903,851 | |
| 18094 | Trump ENT4 | £ 58,354,262 | |
| 18095 | Trump It Up | £ 152,647,488 | |
| 18096 | Trump Organization | £ 50,000 | |
| 18097 | Trump Towers | £ 5,651,661 | |
| 18098 | Trumpets | £ 92,470,752 | |
| 18099 | Truncated Icosahedron | £ 179,262,143 | |
| 18100 | Trurez | £ 53,470,958 | |
