The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 23301 | toon4 | £ 6,735,419 | |
| 23302 | Toons Security | £ 9,398,725 | |
| 23303 | Toontown Justice | £ 34,088,107 | |
| 23304 | tooo | £ 12,667,642 | |
| 23305 | Toot Toot Train | £ 26,470,469 | |
| 23306 | Tooth decay | £ 67,841 | |
| 23307 | toothy | £ 89,244,948 | |
| 23308 | Tooting Entertainment | £ 207,096,492 | |
| 23309 | tootjpick | £ 108,701,101 | |
| 23310 | Toots INC | £ 50,000 | |
| 23311 | Top | £ 1,990,609 | |
| 23312 | TOP CAT | £ 128,740,108 | |
| 23313 | Top Catz | £ 18,981,520 | |
| 23314 | Top Gear | £ 44,811,997 | |
| 23315 | Top grumble n grunts | £ -1,218,404 | |
| 23316 | Top Gun | £ 3,422,807,680 | |
| 23317 | Top piece | £ 1,372,610,258 | |
| 23318 | Top Secret | £ 487,807,805 | |
| 23319 | Top Soil | £ 1,185,338,804 | |
| 23320 | Top-Catz | £ 256,355,659 | |
| 23321 | Topboys | £ 15,254,549 | |
| 23322 | TopCatz | £ 2,195,881,796 | |
| 23323 | topguns | £ 4,544,838 | |
| 23324 | topic proviso | £ 25,741,643 | |
| 23325 | Toppman | £ 48,283,700 | |
| 23326 | Topricus | £ 47,029,027 | |
| 23327 | TOPSOIL | £ 332,490,123 | |
| 23328 | Torbay | £ 377,631,006 | |
| 23329 | Torch | £ 7,214,725 | |
| 23330 | Torch Inc | £ 2,031,095 | |
| 23331 | Torchwood | £ 5,179,839 | |
| 23332 | Torino | £ 49,005,254 | |
| 23333 | Torment | £ 103,849,089 | |
| 23334 | Tornado Chasers | £ 59,380,778 | |
| 23335 | Tornadoes | £ 5,428,409 | |
| 23336 | toronto | £ 83,339,544 | |
| 23337 | Toronto Blue Jays | £ 83,757,469 | |
| 23338 | Toronto Maple Leafs | £ 38,988,197 | |
| 23339 | Toronto University | £ 37,110,418 | |
| 23340 | Toronto. | £ 33,523,973 | |
| 23341 | Torpedo | £ 7,007,163 | |
| 23342 | Torres | £ 3,882,414 | |
| 23343 | Torsion | £ 32,125,241 | |
| 23344 | Tortoise Co | £ 1,950,669 | |
| 23345 | Torture | £ 64,156,670 | |
| 23346 | Torture Incorporated | £ 1,383,292 | |
| 23347 | Torture Logistics | £ 1,817,152,373 | |
| 23348 | Tory Business Wing | £ 218,201,676 | |
| 23349 | tosspot | £ 9,197,406 | |
| 23350 | Total Annihilation | £ 5,502,457 | |
| 23351 | Total Chaos | £ 1,407,582 | |
| 23352 | Total Control | £ 70,328,142 | |
| 23353 | Total Destruction | £ 2,841,678 | |
| 23354 | Total Destruction LTD | £ 1,569,432 | |
| 23355 | Total Devastation | £ 186,605 | |
| 23356 | Total Disaster | £ 163,829,064 | |
| 23357 | Total indifference | £ 225,561,497 | |
| 23358 | Total Recall | £ 50,000 | |
| 23359 | Total War | £ 49,159,345 | |
| 23360 | Totalitarian | £ 13,226,545 | |
| 23361 | Totally not a front | £ -161,887 | |
| 23362 | TottenhamEnforcers | £ 1,532,495 | |
| 23363 | Touch | £ 202,138,732 | |
| 23364 | Tough Guy | £ 279,800,753 | |
| 23365 | Toulouse | £ 124,610,105 | |
| 23366 | tour | £ -2,142,467 | |
| 23367 | tour1 | £ -110,192 | |
| 23368 | tour3 | £ 1,292,470 | |
| 23369 | Towel | £ 57,522,172 | |
| 23370 | Towels | £ 94,234,024 | |
| 23371 | Tower | £ 8,190,171 | |
| 23372 | Towergate | £ 495,975,663 | |
| 23373 | Town | £ 50,000 | |
| 23374 | Town Crazy | £ 2,236,822 | |
| 23375 | Town Feeder | £ 61,055,924 | |
| 23376 | town land | £ 5,182,365 | |
| 23377 | towns | £ 53,994,032 | |
| 23378 | townsville | £ 129,109,395 | |
| 23379 | Townsville Common | £ 570,929,258 | |
| 23380 | Townsville Commons | £ 12,104,614 | |
| 23381 | Townsville7488 | £ 50,000 | |
| 23382 | Toxic Inc. | £ 16,411,193 | |
| 23383 | toxic sweets | £ 698,330 | |
| 23384 | Toxicity | £ 430,993,508 | |
| 23385 | ToxicWater | £ 17,180,645 | |
| 23386 | toy soldiers | £ 600,863,098 | |
| 23387 | toyd enterprises | £ 53,559,287 | |
| 23388 | Toyota | £ 14,240,430 | |
| 23389 | toys | £ 212,878,500 | |
| 23390 | Toys R Us | £ 5,499,591 | |
| 23391 | TP Industries | £ 270,878,714 | |
| 23392 | TPB | £ 71,036,828 | |
| 23393 | Tr0uble | £ 3,408,243 | |
| 23394 | TR1 | £ 543,658,570 | |
| 23395 | TR7 | £ 70,217,685 | |
| 23396 | Tracks | £ 244,702,173 | |
| 23397 | Tractor Boys | £ 22,406,054 | |
| 23398 | Tractor Company | £ 57,077,062 | |
| 23399 | Trade Fruit Comp | £ 13,108,833 | |
| 23400 | Trade Secrets | £ 55,657,612 | |
