The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 21501 | Too Many Requests | £ 59,454,502 | |
| 21502 | Too Short | £ 3,732,786 | |
| 21503 | toofless | £ 18,906,223 | |
| 21504 | Tool | £ 61,317,860 | |
| 21505 | Tools | £ 7,393,683 | |
| 21506 | toomeyRus | £ 34,050,938 | |
| 21507 | toomeys | £ 54,765,405 | |
| 21508 | TooMuchProfit | £ 14,529,890 | |
| 21509 | toon | £ 5,500,225 | |
| 21510 | toon2 | £ 7,936,643 | |
| 21511 | toon3 | £ -311,954 | |
| 21512 | toon4 | £ 6,735,419 | |
| 21513 | Toons Security | £ 9,398,725 | |
| 21514 | Toontown Justice | £ 34,088,107 | |
| 21515 | tooo | £ 12,667,642 | |
| 21516 | Toot Toot Train | £ 26,470,469 | |
| 21517 | Tooth decay | £ 67,841 | |
| 21518 | toothy | £ 89,244,948 | |
| 21519 | Tooting Entertainment | £ 207,096,492 | |
| 21520 | tootjpick | £ 108,701,101 | |
| 21521 | Toots INC | £ 50,000 | |
| 21522 | Top | £ 1,990,609 | |
| 21523 | TOP CAT | £ 128,740,108 | |
| 21524 | top catz | £ 11,278,896 | |
| 21525 | Top Gear | £ 44,811,997 | |
| 21526 | Top grumble n grunts | £ -1,218,404 | |
| 21527 | Top Gun | £ 3,006,698,151 | |
| 21528 | Top piece | £ 1,372,610,258 | |
| 21529 | Top Secret | £ 487,807,805 | |
| 21530 | Top Soil | £ 1,185,338,804 | |
| 21531 | Topboys | £ 15,254,549 | |
| 21532 | TopCatz | £ 2,195,881,796 | |
| 21533 | topguns | £ 4,544,838 | |
| 21534 | Toppman | £ 48,283,700 | |
| 21535 | TOPSOIL | £ 238,277,548 | |
| 21536 | Torbay | £ 377,631,006 | |
| 21537 | Torch | £ 7,214,725 | |
| 21538 | Torch Inc | £ 2,031,095 | |
| 21539 | Torchwood | £ 5,179,839 | |
| 21540 | Torment | £ 134,299,553 | |
| 21541 | Tornado Chasers | £ 59,380,778 | |
| 21542 | Tornadoes | £ 5,428,409 | |
| 21543 | toronto | £ 96,682,104 | |
| 21544 | Toronto Blue Jays | £ 83,757,469 | |
| 21545 | Toronto Maple Leafs | £ 38,988,197 | |
| 21546 | Toronto University | £ 37,110,418 | |
| 21547 | Torpedo | £ 7,007,163 | |
| 21548 | Torres | £ 3,882,414 | |
| 21549 | Torsion | £ 32,125,241 | |
| 21550 | Torture | £ 64,156,670 | |
| 21551 | Torture Incorporated | £ 1,383,292 | |
| 21552 | Torture Logistics | £ 1,774,606,172 | |
| 21553 | Tory Business Wing | £ 208,021,005 | |
| 21554 | tosspot | £ 5,741,398 | |
| 21555 | Total Annihilation | £ 5,502,457 | |
| 21556 | Total Chaos | £ 1,407,582 | |
| 21557 | Total Control | £ 70,328,142 | |
| 21558 | Total Destruction | £ 2,841,678 | |
| 21559 | Total Destruction LTD | £ 1,569,432 | |
| 21560 | Total Devastation | £ 186,605 | |
| 21561 | Total Disaster | £ 163,829,064 | |
| 21562 | Total indifference | £ 225,561,497 | |
| 21563 | Total Recall | £ 50,000 | |
| 21564 | Total War | £ 49,734,470 | |
| 21565 | Totalitarian | £ 13,226,545 | |
| 21566 | Totally not a front | £ -161,887 | |
| 21567 | TottenhamEnforcers | £ 1,532,495 | |
| 21568 | Touch | £ 202,138,732 | |
| 21569 | Tough Guy | £ 279,800,753 | |
| 21570 | Toulouse | £ 124,610,105 | |
| 21571 | tour | £ -2,142,467 | |
| 21572 | tour1 | £ -110,192 | |
| 21573 | tour3 | £ 1,292,470 | |
| 21574 | Towel | £ 57,522,172 | |
| 21575 | Towels | £ 94,234,024 | |
| 21576 | Tower | £ 8,190,171 | |
| 21577 | Towergate | £ 495,975,663 | |
| 21578 | Town | £ 50,000 | |
| 21579 | Town Crazy | £ 2,236,822 | |
| 21580 | Town Feeder | £ 61,055,924 | |
| 21581 | town land | £ 5,182,365 | |
| 21582 | towns | £ -323,457 | |
| 21583 | townsville | £ 129,109,395 | |
| 21584 | Townsville Common | £ 570,929,258 | |
| 21585 | Townsville Commons | £ 12,104,614 | |
| 21586 | Townsville7488 | £ 50,000 | |
| 21587 | Toxic Inc. | £ 16,411,193 | |
| 21588 | toxic sweets | £ 698,330 | |
| 21589 | Toxicity | £ 430,993,508 | |
| 21590 | ToxicWater | £ 17,180,645 | |
| 21591 | toy soldiers | £ 600,863,098 | |
| 21592 | toyd enterprises | £ 53,559,287 | |
| 21593 | toys | £ 212,878,500 | |
| 21594 | Toys R Us | £ 5,499,591 | |
| 21595 | TP Industries | £ 270,878,714 | |
| 21596 | TPB | £ 37,916,268 | |
| 21597 | Tr0uble | £ 3,408,243 | |
| 21598 | TR1 | £ 543,658,570 | |
| 21599 | Tracks | £ 219,354,652 | |
| 21600 | Tractor Boys | £ 22,406,054 | |
