The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 18301 | Tranquility | £ 61,617,255 | |
| 18302 | TranServ | £ 812,427 | |
| 18303 | TRANSFERED MONEY | £ 87,625,632 | |
| 18304 | Transformers | £ 837,883,763 | |
| 18305 | Transport | £ 65,944,682 | |
| 18306 | Transporter Bv | £ 3,417,363 | |
| 18307 | Transylvannia | £ 16,349,535 | |
| 18308 | Trap Inc | £ 159,655,023 | |
| 18309 | Trash Co | £ 938,746 | |
| 18310 | Trashbag Gang | £ 125,514,548 | |
| 18311 | Travel lodge | £ 10,975,777 | |
| 18312 | Travellers Cheques | £ 178,002,217 | |
| 18313 | travis perkins | £ 63,203 | |
| 18314 | traviscityindustires | £ 493,900 | |
| 18315 | travisdogandco | £ 50,000 | |
| 18316 | Treachery | £ 59,315,232 | |
| 18317 | Treacle | £ 5,500,530 | |
| 18318 | Treacle Mining Inc. | £ 61,103,035 | |
| 18319 | Treacle Mining Ltd | £ 50,000 | |
| 18320 | Treacle Tart | £ 4,355,630 | |
| 18321 | Treasure | £ 57,810,180 | |
| 18322 | Tree Fellers | £ -1,919 | |
| 18323 | Tree1 | £ 3,735,610 | |
| 18324 | TreeFellas LTD | £ 1,234,382 | |
| 18325 | Treehorn Production inc | £ 732,257 | |
| 18326 | Trembler | £ 218,082,732 | |
| 18327 | Tremont-U | £ 4,517,548 | |
| 18328 | tremor | £ 3,657,431 | |
| 18329 | tremper | £ 6,867,566 | |
| 18330 | tremper14 | £ 590,827 | |
| 18331 | Tremper5 | £ 1,595,170 | |
| 18332 | Tremper514 | £ 2,209,187 | |
| 18333 | Tremper55 | £ 2,088,959 | |
| 18334 | Trevor Philips Enterpris | £ 505,264,845 | |
| 18335 | treyui | £ 50,000 | |
| 18336 | Trial and Error | £ 5,503,869 | |
| 18337 | Trial of da weak | £ -714,569 | |
| 18338 | triangle tabel | £ 22,520,260 | |
| 18339 | Triangles | £ 4,772,454 | |
| 18340 | Tribal | £ 17,956,779 | |
| 18341 | Tribbleton | £ -48,897,651 | |
| 18342 | Tribecastanza | £ 65,270,480 | |
| 18343 | Tribes | £ 605,556 | |
| 18344 | trichomonas | £ 53,660,150 | |
| 18345 | Trickery | £ 4,965,405 | |
| 18346 | Tricks | £ 57,693,424 | |
| 18347 | Trickster | £ 934,403 | |
| 18348 | TrickstersGirl | £ 4,421,533 | |
| 18349 | Tricky Inc | £ 312,099 | |
| 18350 | TriCoMoon | £ 3,499,244 | |
| 18351 | Trident | £ 185,815,436 | |
| 18352 | Triflex Studios | £ 1,890,437 | |
| 18353 | Triforce Technologies | £ 62,658,328 | |
| 18354 | trigga | £ 5,501,257 | |
| 18355 | Trigger Happy TV | £ 64,164,302 | |
| 18356 | trikadoc ent | £ -2,621,474 | |
| 18357 | Trilateral Commission | £ 186,675,837 | |
| 18358 | Trinitrotoluene | £ 3,530,809 | |
| 18359 | Trinkets plus | £ 8,206,487 | |
| 18360 | Triple | £ 5,224,648 | |
| 18361 | Triple X | £ 2,931,494 | |
| 18362 | Triple X Corp | £ 56,715,793 | |
| 18363 | Tripoli | £ 184,171,819 | |
| 18364 | Trippin | £ 22,850,724 | |
| 18365 | Triton Psychedelics | £ 1,559,120 | |
| 18366 | Triumvirate | £ 7,729,029 | |
| 18367 | Trivia | £ 453,690,566 | |
| 18368 | Trixies Treats | £ 50,000 | |
| 18369 | Troglodyte LTD | £ 50,000 | |
| 18370 | Trogs | £ 6,235,872 | |
| 18371 | Trojan | £ 555,116,291 | |
| 18372 | Troll Bombings | £ 5,503,910 | |
| 18373 | Trollaris | £ 4,793,390 | |
| 18374 | Trolling | £ 57,211,849 | |
| 18375 | Trollolol | £ 3,547,461 | |
| 18376 | Trolls | £ 54,025,363 | |
| 18377 | trooper | £ 337,223,772 | |
| 18378 | Trop Space | £ 2,110,494,512 | |
| 18379 | Tropica | £ 4,394,369 | |
| 18380 | TROPICO | £ 41,774,749 | |
| 18381 | Tropico 2 | £ 56,381 | |
| 18382 | Tror | £ 43,278,856 | |
| 18383 | Troter international | £ 50,000 | |
| 18384 | Trotters | £ 5,498,497 | |
| 18385 | Trotters inc | £ 13,957,991 | |
| 18386 | Trotters international | £ 13,260,602 | |
| 18387 | Troubble | £ 133,354,101 | |
| 18388 | Troubblesome | £ 216,163,132 | |
| 18389 | Trouble | £ 171,082,605 | |
| 18390 | TROUBLE 3 | £ 391,602,932 | |
| 18391 | Trouble Inc | £ 11,653,378 | |
| 18392 | Trouble While You Sleep | £ 467,211,735 | |
| 18393 | Troubled Waters | £ 337,266,459 | |
| 18394 | Troubles | £ 59,253,750 | |
| 18395 | Troublesome Child | £ 17,324,426 | |
| 18396 | trout | £ 3,458,234 | |
| 18397 | Troy | £ 216,061,136 | |
| 18398 | Truce | £ 9,139,710 | |
| 18399 | truckers paradise | £ 4,706 | |
| 18400 | Truckin Inc | £ 13,603,438 | |
