The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 20601 | Transformers | £ 877,840,885 | |
| 20602 | Transport | £ 86,743,173 | |
| 20603 | Transportation Systems | £ 262,346,846 | |
| 20604 | Transporter Bv | £ 3,417,363 | |
| 20605 | Transylvannia | £ 16,349,535 | |
| 20606 | Trap Inc | £ 159,655,023 | |
| 20607 | TRAP LAWD | £ 3,007,060 | |
| 20608 | Trash Co | £ 938,746 | |
| 20609 | Trashbag Gang | £ 125,514,548 | |
| 20610 | Travel | £ 53,424,500 | |
| 20611 | Travel lodge | £ 10,975,777 | |
| 20612 | Travellers Cheques | £ 178,002,217 | |
| 20613 | travis perkins | £ 63,203 | |
| 20614 | traviscityindustires | £ 493,900 | |
| 20615 | travisdogandco | £ 50,000 | |
| 20616 | Treachery | £ 202,021,645 | |
| 20617 | Treacle | £ 5,500,530 | |
| 20618 | Treacle Mining Inc. | £ 61,103,035 | |
| 20619 | Treacle Mining Ltd | £ 50,000 | |
| 20620 | Treacle Tart | £ 4,355,630 | |
| 20621 | Treasure | £ 57,810,180 | |
| 20622 | Treasury | £ 118,585,145 | |
| 20623 | Tree | £ 53,585,523 | |
| 20624 | Tree Fellers | £ -1,919 | |
| 20625 | Tree1 | £ 3,735,610 | |
| 20626 | TreeFellas LTD | £ 1,234,382 | |
| 20627 | Treehorn Production inc | £ 732,257 | |
| 20628 | Trembler | £ 218,082,732 | |
| 20629 | Tremont-U | £ 5,876,385 | |
| 20630 | tremor | £ 3,657,431 | |
| 20631 | tremper | £ 6,867,566 | |
| 20632 | tremper14 | £ 590,827 | |
| 20633 | Tremper5 | £ 1,595,170 | |
| 20634 | Tremper514 | £ 2,209,187 | |
| 20635 | Tremper55 | £ 2,088,959 | |
| 20636 | Treno | £ 58,357,215 | |
| 20637 | Trevor Philips Enterpris | £ 505,264,845 | |
| 20638 | Trevor Philips Ind | £ 18,654,595 | |
| 20639 | treyui | £ 50,000 | |
| 20640 | Trial and Error | £ 5,503,869 | |
| 20641 | Trial and Retribution | £ 298,773,324 | |
| 20642 | Trial of da weak | £ -714,569 | |
| 20643 | triangle tabel | £ 22,520,260 | |
| 20644 | Triangles | £ 4,772,454 | |
| 20645 | Tribal | £ 17,956,779 | |
| 20646 | Tribbleton | £ -48,897,651 | |
| 20647 | Tribecastanza | £ 65,270,480 | |
| 20648 | Tribes | £ 605,556 | |
| 20649 | trichomonas | £ 53,660,150 | |
| 20650 | Trick Or Treat | £ 70,827,599 | |
| 20651 | Trickery | £ 4,965,405 | |
| 20652 | Tricks | £ 57,693,424 | |
| 20653 | Trickster | £ 934,403 | |
| 20654 | TrickstersGirl | £ 4,421,533 | |
| 20655 | Tricky Inc | £ 312,099 | |
| 20656 | TriCoMoon | £ 3,499,244 | |
| 20657 | Trident | £ 185,815,436 | |
| 20658 | Triflex Studios | £ 1,890,437 | |
| 20659 | Triforce Technologies | £ 62,658,328 | |
| 20660 | trigga | £ 5,501,257 | |
| 20661 | Trigger Happy TV | £ 64,164,302 | |
| 20662 | trikadoc ent | £ -2,621,474 | |
| 20663 | Trilateral Commission | £ 186,675,837 | |
| 20664 | Trinitrotoluene | £ 3,530,809 | |
| 20665 | Trinkets plus | £ 8,378,386 | |
| 20666 | Triple | £ 5,224,648 | |
| 20667 | Triple X | £ 2,931,494 | |
| 20668 | Triple X Corp | £ 56,715,793 | |
| 20669 | Tripoli | £ 243,643,476 | |
| 20670 | Trippin | £ 22,850,724 | |
| 20671 | Triton Psychedelics | £ 1,559,120 | |
| 20672 | Triumvirate | £ 7,729,029 | |
| 20673 | Trivia | £ 453,690,566 | |
| 20674 | Trixies Treats | £ 50,000 | |
| 20675 | Troglodyte LTD | £ 50,000 | |
| 20676 | Trogs | £ 6,235,872 | |
| 20677 | Trojan | £ 782,738,386 | |
| 20678 | Troll Bombings | £ 5,503,910 | |
| 20679 | Trollaris | £ 4,793,390 | |
| 20680 | Trolling | £ 57,211,849 | |
| 20681 | Trollolol | £ 3,547,461 | |
| 20682 | Trolls | £ 54,025,363 | |
| 20683 | trooper | £ 337,223,772 | |
| 20684 | Trop Space | £ 2,140,130,898 | |
| 20685 | Tropica | £ 4,394,369 | |
| 20686 | Tropico 2 | £ 56,381 | |
| 20687 | Tropolis | £ 16,977,687 | |
| 20688 | Tror | £ 43,278,856 | |
| 20689 | Troter international | £ 50,000 | |
| 20690 | Trotters | £ 10,544,759 | |
| 20691 | Trotters inc | £ 13,957,991 | |
| 20692 | Trotters Ind Trading | £ 162,600,930 | |
| 20693 | Trotters international | £ 13,260,602 | |
| 20694 | Trotters trading | £ 736,497,744 | |
| 20695 | Troubble | £ 133,354,101 | |
| 20696 | Troubblesome | £ 216,163,132 | |
| 20697 | Trouble | £ 171,082,605 | |
| 20698 | TROUBLE 3 | £ 322,937,028 | |
| 20699 | Trouble Inc | £ 11,653,378 | |
| 20700 | Trouble While You Sleep | £ 467,211,735 | |
