The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 21301 | toomeys | £ 54,765,405 | |
| 21302 | TooMuchProfit | £ 14,529,890 | |
| 21303 | toon | £ 5,500,225 | |
| 21304 | toon2 | £ 7,936,643 | |
| 21305 | toon3 | £ -311,954 | |
| 21306 | toon4 | £ 6,735,419 | |
| 21307 | Toons Security | £ 9,398,725 | |
| 21308 | Toontown Justice | £ 34,088,107 | |
| 21309 | tooo | £ 12,667,642 | |
| 21310 | Toot Toot Train | £ 26,470,469 | |
| 21311 | Tooth decay | £ 67,841 | |
| 21312 | toothy | £ 89,244,948 | |
| 21313 | Tooting Entertainment | £ 207,096,492 | |
| 21314 | tootjpick | £ 108,701,101 | |
| 21315 | Toots INC | £ 50,000 | |
| 21316 | Top | £ 1,990,609 | |
| 21317 | TOP CAT | £ 128,740,108 | |
| 21318 | top catz | £ 11,278,896 | |
| 21319 | Top Gear | £ 44,811,997 | |
| 21320 | Top grumble n grunts | £ -1,218,404 | |
| 21321 | Top Gun | £ 2,907,166,099 | |
| 21322 | Top piece | £ 1,372,610,258 | |
| 21323 | Top Secret | £ 487,807,805 | |
| 21324 | Top Soil | £ 1,185,338,804 | |
| 21325 | Topboys | £ 15,254,549 | |
| 21326 | TopCatz | £ 2,195,881,796 | |
| 21327 | topguns | £ 4,544,838 | |
| 21328 | Toppman | £ 48,283,700 | |
| 21329 | TOPSOIL | £ 228,225,014 | |
| 21330 | Torbay | £ 377,631,006 | |
| 21331 | Torch | £ 7,214,725 | |
| 21332 | Torch Inc | £ 2,031,095 | |
| 21333 | Torchwood | £ 5,179,839 | |
| 21334 | Torment | £ 134,929,223 | |
| 21335 | Tornado Chasers | £ 59,380,778 | |
| 21336 | Tornadoes | £ 5,428,409 | |
| 21337 | toronto | £ 96,682,104 | |
| 21338 | Toronto Blue Jays | £ 83,757,469 | |
| 21339 | Toronto Maple Leafs | £ 38,988,197 | |
| 21340 | Toronto University | £ 37,110,418 | |
| 21341 | Torpedo | £ 7,007,163 | |
| 21342 | Torres | £ 3,882,414 | |
| 21343 | Torsion | £ 32,125,241 | |
| 21344 | Torture | £ 64,156,670 | |
| 21345 | Torture Incorporated | £ 1,383,292 | |
| 21346 | Torture Logistics | £ 1,727,541,173 | |
| 21347 | Tory Business Wing | £ 208,021,005 | |
| 21348 | tosspot | £ 5,741,398 | |
| 21349 | Total Annihilation | £ 5,502,457 | |
| 21350 | Total Chaos | £ 1,407,582 | |
| 21351 | Total Control | £ 70,328,142 | |
| 21352 | Total Destruction | £ 2,841,678 | |
| 21353 | Total Destruction LTD | £ 1,569,432 | |
| 21354 | Total Devastation | £ 186,605 | |
| 21355 | Total Disaster | £ 163,829,064 | |
| 21356 | Total indifference | £ 225,561,497 | |
| 21357 | Total Recall | £ 50,000 | |
| 21358 | Total War | £ 53,989,075 | |
| 21359 | Totalitarian | £ 13,226,545 | |
| 21360 | Totally not a front | £ -161,887 | |
| 21361 | TottenhamEnforcers | £ 1,532,495 | |
| 21362 | Touch | £ 202,138,732 | |
| 21363 | Tough Guy | £ 279,800,753 | |
| 21364 | Toulouse | £ 124,610,105 | |
| 21365 | tour | £ -2,142,467 | |
| 21366 | tour1 | £ -110,192 | |
| 21367 | tour3 | £ 1,292,470 | |
| 21368 | Towel | £ 57,522,172 | |
| 21369 | Towels | £ 94,234,024 | |
| 21370 | Tower | £ 8,190,171 | |
| 21371 | Towergate | £ 495,975,663 | |
| 21372 | Town | £ 50,000 | |
| 21373 | Town Crazy | £ 2,236,822 | |
| 21374 | Town Feeder | £ 61,055,924 | |
| 21375 | town land | £ 5,182,365 | |
| 21376 | Town Newbie | £ 55,009,730 | |
| 21377 | towns | £ -323,457 | |
| 21378 | townsville | £ 129,109,395 | |
| 21379 | Townsville Common | £ 570,929,258 | |
| 21380 | Townsville Commons | £ 12,104,614 | |
| 21381 | Townsville7488 | £ 50,000 | |
| 21382 | Toxic Inc. | £ 16,411,193 | |
| 21383 | toxic sweets | £ 698,330 | |
| 21384 | Toxicity | £ 430,993,508 | |
| 21385 | ToxicWater | £ 17,180,645 | |
| 21386 | toy soldiers | £ 600,863,098 | |
| 21387 | toyd enterprises | £ 53,559,287 | |
| 21388 | toys | £ 212,878,500 | |
| 21389 | Toys R Us | £ 5,499,591 | |
| 21390 | TP Industries | £ 270,878,714 | |
| 21391 | TPB | £ 77,569,369 | |
| 21392 | Tr0uble | £ 3,408,243 | |
| 21393 | TR1 | £ 543,658,570 | |
| 21394 | Tracks | £ 108,500,953 | |
| 21395 | Tractor Boys | £ 22,406,054 | |
| 21396 | Trade Fruit Comp | £ 13,108,833 | |
| 21397 | Trade Secrets | £ 40,617,478 | |
| 21398 | Tradex | £ 18,448,041 | |
| 21399 | Trading Post Industries | £ 142,764,231 | |
| 21400 | Trafalgar | £ 48,297,922 | |
