The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 20501 | TranServ | £ 812,427 | |
| 20502 | TRANSFERED MONEY | £ 87,625,632 | |
| 20503 | Transformers | £ 877,840,885 | |
| 20504 | Transport | £ 86,743,173 | |
| 20505 | Transportation Systems | £ 257,335,019 | |
| 20506 | Transporter Bv | £ 3,417,363 | |
| 20507 | Transylvannia | £ 16,349,535 | |
| 20508 | Trap Inc | £ 159,655,023 | |
| 20509 | TRAP LAWD | £ 2,695,024 | |
| 20510 | Trash Co | £ 938,746 | |
| 20511 | Trashbag Gang | £ 125,514,548 | |
| 20512 | Travel | £ 50,669,612 | |
| 20513 | Travel lodge | £ 10,975,777 | |
| 20514 | Travellers Cheques | £ 178,002,217 | |
| 20515 | travis perkins | £ 63,203 | |
| 20516 | traviscityindustires | £ 493,900 | |
| 20517 | travisdogandco | £ 50,000 | |
| 20518 | Treachery | £ 202,021,645 | |
| 20519 | Treacle | £ 5,500,530 | |
| 20520 | Treacle Mining Inc. | £ 61,103,035 | |
| 20521 | Treacle Mining Ltd | £ 50,000 | |
| 20522 | Treacle Tart | £ 4,355,630 | |
| 20523 | Treasure | £ 57,810,180 | |
| 20524 | Treasury | £ 77,908,243 | |
| 20525 | Tree | £ 53,585,523 | |
| 20526 | Tree Fellers | £ -1,919 | |
| 20527 | Tree1 | £ 3,735,610 | |
| 20528 | TreeFellas LTD | £ 1,234,382 | |
| 20529 | Treehorn Production inc | £ 732,257 | |
| 20530 | Trembler | £ 218,082,732 | |
| 20531 | Tremont-U | £ 5,876,385 | |
| 20532 | tremor | £ 3,657,431 | |
| 20533 | tremper | £ 6,867,566 | |
| 20534 | tremper14 | £ 590,827 | |
| 20535 | Tremper5 | £ 1,595,170 | |
| 20536 | Tremper514 | £ 2,209,187 | |
| 20537 | Tremper55 | £ 2,088,959 | |
| 20538 | Treno | £ 58,357,215 | |
| 20539 | Trevor Philips Enterpris | £ 505,264,845 | |
| 20540 | Trevor Philips Ind | £ 18,654,595 | |
| 20541 | treyui | £ 50,000 | |
| 20542 | Trial and Error | £ 5,503,869 | |
| 20543 | Trial and Retribution | £ 299,111,762 | |
| 20544 | Trial of da weak | £ -714,569 | |
| 20545 | triangle tabel | £ 22,520,260 | |
| 20546 | Triangles | £ 4,772,454 | |
| 20547 | Tribal | £ 17,956,779 | |
| 20548 | Tribbleton | £ -48,897,651 | |
| 20549 | Tribecastanza | £ 65,270,480 | |
| 20550 | Tribes | £ 605,556 | |
| 20551 | trichomonas | £ 53,660,150 | |
| 20552 | Trick Or Treat | £ 16,889,821 | |
| 20553 | Trickery | £ 4,965,405 | |
| 20554 | Tricks | £ 57,693,424 | |
| 20555 | Trickster | £ 934,403 | |
| 20556 | TrickstersGirl | £ 4,421,533 | |
| 20557 | Tricky Inc | £ 312,099 | |
| 20558 | TriCoMoon | £ 3,499,244 | |
| 20559 | Trident | £ 185,815,436 | |
| 20560 | Triflex Studios | £ 1,890,437 | |
| 20561 | Triforce Technologies | £ 62,658,328 | |
| 20562 | trigga | £ 5,501,257 | |
| 20563 | Trigger Happy TV | £ 64,164,302 | |
| 20564 | trikadoc ent | £ -2,621,474 | |
| 20565 | Trilateral Commission | £ 186,675,837 | |
| 20566 | Trinitrotoluene | £ 3,530,809 | |
| 20567 | Trinkets plus | £ 8,378,386 | |
| 20568 | Triple | £ 5,224,648 | |
| 20569 | Triple X | £ 2,931,494 | |
| 20570 | Triple X Corp | £ 56,715,793 | |
| 20571 | Tripoli | £ 243,643,476 | |
| 20572 | Trippin | £ 22,850,724 | |
| 20573 | Triton Psychedelics | £ 1,559,120 | |
| 20574 | Triumvirate | £ 7,729,029 | |
| 20575 | Trivia | £ 453,690,566 | |
| 20576 | Trixies Treats | £ 50,000 | |
| 20577 | Troglodyte LTD | £ 50,000 | |
| 20578 | Trogs | £ 6,235,872 | |
| 20579 | Trojan | £ 782,738,386 | |
| 20580 | Troll Bombings | £ 5,503,910 | |
| 20581 | Trollaris | £ 4,793,390 | |
| 20582 | Trolling | £ 57,211,849 | |
| 20583 | Trollolol | £ 3,547,461 | |
| 20584 | Trolls | £ 54,025,363 | |
| 20585 | trooper | £ 337,223,772 | |
| 20586 | Trop Space | £ 2,140,130,898 | |
| 20587 | Tropica | £ 4,394,369 | |
| 20588 | Tropico 2 | £ 56,381 | |
| 20589 | Tropolis | £ 16,977,687 | |
| 20590 | Tror | £ 43,278,856 | |
| 20591 | Troter international | £ 50,000 | |
| 20592 | Trotters | £ 10,544,759 | |
| 20593 | Trotters inc | £ 13,957,991 | |
| 20594 | Trotters Ind Trading | £ 162,600,930 | |
| 20595 | Trotters international | £ 13,260,602 | |
| 20596 | Trotters trading | £ 609,379,346 | |
| 20597 | Troubble | £ 133,354,101 | |
| 20598 | Troubblesome | £ 216,163,132 | |
| 20599 | Trouble | £ 171,082,605 | |
| 20600 | TROUBLE 3 | £ 322,937,028 | |
