The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 18601 | toon3 | £ -311,954 | |
| 18602 | toon4 | £ 6,735,419 | |
| 18603 | Toons Security | £ 9,398,725 | |
| 18604 | Toontown Justice | £ 35,124,706 | |
| 18605 | tooo | £ 12,667,642 | |
| 18606 | Toot Toot Train | £ 26,470,469 | |
| 18607 | Tooth decay | £ 67,841 | |
| 18608 | Tooting Entertainment | £ 207,096,492 | |
| 18609 | tootjpick | £ 108,701,101 | |
| 18610 | Tootles | £ 1,169,147 | |
| 18611 | Toots INC | £ 50,000 | |
| 18612 | Top | £ 1,990,609 | |
| 18613 | TOP CAT | £ 128,740,108 | |
| 18614 | top catz | £ 11,278,896 | |
| 18615 | Top Eight | £ 70,402,031 | |
| 18616 | Top Gear | £ 44,811,997 | |
| 18617 | Top grumble n grunts | £ -1,218,404 | |
| 18618 | Top piece | £ 1,372,610,258 | |
| 18619 | Top Secret | £ 487,807,805 | |
| 18620 | Top Secret Document | £ 20,263,267 | |
| 18621 | Top Soil | £ 1,185,338,804 | |
| 18622 | Topboys | £ 15,254,549 | |
| 18623 | TopCatz | £ 2,075,981,796 | |
| 18624 | TOPDOG | £ 50,000 | |
| 18625 | topguns | £ 4,544,838 | |
| 18626 | Toppman | £ 48,283,700 | |
| 18627 | Torbay | £ 377,631,006 | |
| 18628 | Torch | £ 1,760,949 | |
| 18629 | Torch Inc | £ 2,031,095 | |
| 18630 | Torchwood | £ 5,179,839 | |
| 18631 | Tornado Chasers | £ 1,192,000 | |
| 18632 | Tornadoes | £ 5,428,409 | |
| 18633 | toronto | £ 56,213,365 | |
| 18634 | Toronto Blue Jays | £ 83,757,469 | |
| 18635 | Toronto Maple Leafs | £ 38,988,197 | |
| 18636 | Toronto University | £ 37,110,418 | |
| 18637 | Torpedo | £ 7,007,163 | |
| 18638 | Torres | £ 3,882,414 | |
| 18639 | Torsion | £ 31,578,379 | |
| 18640 | Torture | £ 64,156,670 | |
| 18641 | Torture Incorporated | £ 1,383,292 | |
| 18642 | Tory Business Wing | £ 32,593,520 | |
| 18643 | tosspot | £ 5,741,398 | |
| 18644 | Total Chaos | £ 1,407,582 | |
| 18645 | Total Control | £ 70,328,142 | |
| 18646 | Total Destruction | £ 7,253,114 | |
| 18647 | Total Destruction LTD | £ 2,153,684 | |
| 18648 | Total Devastation | £ 186,605 | |
| 18649 | Total Disaster | £ 153,593,186 | |
| 18650 | Total indifference | £ 225,561,497 | |
| 18651 | Total Recall | £ 50,000 | |
| 18652 | Totalitarian | £ 13,226,545 | |
| 18653 | Totally not a front | £ -161,887 | |
| 18654 | TottenhamEnforcers | £ 1,532,495 | |
| 18655 | Touch | £ 202,138,732 | |
| 18656 | Tough Guy | £ 279,800,753 | |
| 18657 | Toulouse | £ 124,610,105 | |
| 18658 | tour | £ -2,142,467 | |
| 18659 | tour1 | £ -110,192 | |
| 18660 | tour3 | £ 1,292,470 | |
| 18661 | Toure | £ 45,482,979 | |
| 18662 | tourston fm | £ 74,361,202 | |
| 18663 | Towel | £ 57,522,172 | |
| 18664 | Towels | £ 94,234,024 | |
| 18665 | Towergate | £ 495,975,663 | |
| 18666 | Town | £ 50,000 | |
| 18667 | Town Crazy | £ 2,236,822 | |
| 18668 | Town Feeder | £ 61,055,924 | |
| 18669 | town land | £ 5,182,365 | |
| 18670 | Townie 1 | £ -1,319,241 | |
| 18671 | Townie 2 | £ 4,017,878 | |
| 18672 | Townie 3 | £ 160,122 | |
| 18673 | Townie 4 | £ 2,836,325 | |
| 18674 | Townie 5 | £ 5,043,833 | |
| 18675 | Townie 6 | £ 265,306 | |
| 18676 | towns | £ -524,341 | |
| 18677 | townsville | £ 129,109,395 | |
| 18678 | Townsville Common | £ 211,899,947 | |
| 18679 | Townsville Commons | £ 12,104,614 | |
| 18680 | Townsville7488 | £ 50,000 | |
| 18681 | toxic sweets | £ 698,330 | |
| 18682 | Toxic Waste | £ 55,314,682 | |
| 18683 | ToxicWater | £ 17,180,645 | |
| 18684 | toy soldiers | £ 583,121,919 | |
| 18685 | toyd enterprises | £ 53,559,287 | |
| 18686 | toys | £ 380,266,738 | |
| 18687 | Toys R Us | £ 5,499,591 | |
| 18688 | TP Industries | £ 197,172,010 | |
| 18689 | Tr0uble | £ 3,408,243 | |
| 18690 | TR1 | £ 447,257,521 | |
| 18691 | Track | £ 43,897 | |
| 18692 | Tractor Boys | £ 22,406,054 | |
| 18693 | Tradex | £ 18,448,041 | |
| 18694 | Trading Post Industries | £ 142,764,231 | |
| 18695 | Traffic | £ 33,904,645 | |
| 18696 | Traffiking Party | £ 21,580,986 | |
| 18697 | Tragically Hip | £ 4,541,580 | |
| 18698 | Trail | £ 170,043,752 | |
| 18699 | Trailer Trash | £ 17,690,123 | |
| 18700 | Train | £ 85,448,194 | |
