The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 19301 | Silvermoon Enterprises | £ -214,855 | |
| 19302 | Silvertide Enterprises | £ -1,627,976 | |
| 19303 | silvra | £ 54,285,205 | |
| 19304 | Sim City3 | £ 2,672,113 | |
| 19305 | Simcoe County | £ 5,557,781 | |
| 19306 | Simon Cowells posterior | £ 240,514,908 | |
| 19307 | Simon Fraser University | £ 119,553,446 | |
| 19308 | Simon The Sprout | £ 392,953,118 | |
| 19309 | Simple | £ 199,139,466 | |
| 19310 | Simple Inc. | £ 161,992,874 | |
| 19311 | Simple Things | £ 55,697,089 | |
| 19312 | simple things in life | £ -150,921 | |
| 19313 | Simpleton Co. | £ 154,696,172 | |
| 19314 | Simplicity | £ 73,991,816 | |
| 19315 | Simply Caesar | £ 95,974,460 | |
| 19316 | simply does it | £ 16,297,060 | |
| 19317 | simply nuts | £ 3,357,807 | |
| 19318 | Simply Sane Products | £ 46,396,437 | |
| 19319 | Simply Subsidiary | £ 23,554,862 | |
| 19320 | simplysouthern | £ 404,043 | |
| 19321 | Sims Company | £ 69,553,563 | |
| 19322 | Simulation | £ 4,647,866 | |
| 19323 | Sin | £ 882,690,513 | |
| 19324 | Sin City | £ 92,965,888 | |
| 19325 | Sin Co | £ 617 | |
| 19326 | Sin Industries | £ 1,511,830 | |
| 19327 | Sin Sentido | £ 253,153,436 | |
| 19328 | Sinaloa | £ 512,107,007 | |
| 19329 | Sinaloa Cartel | £ 102,795,331 | |
| 19330 | Sinar | £ 51,895,063 | |
| 19331 | Sinatra Select | £ 636,672,700 | |
| 19332 | Sinbad the sailor | £ 214,550,415 | |
| 19333 | Since 1796 | £ 70,112,913 | |
| 19334 | Since Day One | £ 2,313,293,302 | |
| 19335 | sincity | £ 207,710,495 | |
| 19336 | Sinclair Girnigoe | £ 1,133,668,388 | |
| 19337 | Sindar | £ 5,505,299 | |
| 19338 | SINDATERA | £ 4,301,225 | |
| 19339 | Singani | £ 10,311,313,621 | |
| 19340 | Singapore | £ 453,579,334 | |
| 19341 | Singaporean Gang | £ 913,049,023 | |
| 19342 | Singapura | £ 51,209,029 | |
| 19343 | Singh | £ 10,715,804 | |
| 19344 | singham inc | £ 10,963,284 | |
| 19345 | SinghLTD2 | £ 10,446,400 | |
| 19346 | Single Barrel | £ 988,439,929 | |
| 19347 | Single Malt | £ 16,426,947 | |
| 19348 | Single Moms | £ 47,479,425 | |
| 19349 | Sinic Leccy Co | £ 477,855,468 | |
| 19350 | Sinister | £ 1,271,414 | |
| 19351 | Sinister Minister | £ 1,140,682,188 | |
| 19352 | Sink Ships | £ 269,509,457 | |
| 19353 | Sinkain INC | £ 1,959,845 | |
| 19354 | Sinking Ships | £ 81,355,767 | |
| 19355 | Sinners | £ 338,520,161 | |
| 19356 | Sino Group | £ 70,407,632 | |
| 19357 | sins | £ 1,105,930,002 | |
| 19358 | sip | £ 4,947,048 | |
| 19359 | SIPAPIAS | £ -5,901,721 | |
| 19360 | Sipledome | £ -8,748,379 | |
| 19361 | Sipral | £ 5,507,397 | |
| 19362 | sips co | £ 5,109,034 | |
| 19363 | Sir Humphry | £ 491,344,886 | |
| 19364 | Siren | £ 17,058,704 | |
| 19365 | Sirfound inc | £ -9,263 | |
| 19366 | Sirfound inc2 | £ -3,544 | |
| 19367 | sirius co.uk | £ 507,524,587 | |
| 19368 | Sisko | £ 50,000 | |
| 19369 | sister | £ 562,523,191 | |
| 19370 | Sister Sage | £ -491,686 | |
| 19371 | Sisters | £ 47,242,309 | |
| 19372 | Sisyphean | £ 48,163,924 | |
| 19373 | Sisyphus | £ 5,393,053 | |
| 19374 | Sit back | £ 615,085,715 | |
| 19375 | Sithis | £ 235,713 | |
| 19376 | Situational Ethics | £ 27,674,804 | |
| 19377 | Sitwel Ent. | £ 13,506,917 | |
| 19378 | Six Feet Under Ltd | £ -1,091,275 | |
| 19379 | Six More | £ 248,598,527 | |
| 19380 | Six Sigma | £ 949,038,187 | |
| 19381 | Sixpence None The Richer | £ 590,722,080 | |
| 19382 | Sixteen Tons | £ 16,844,742 | |
| 19383 | Sixteen Vestal Virgins | £ 121,263,981 | |
| 19384 | sixteenth sixes | £ 101,784,851 | |
| 19385 | sixth army | £ 114,993,130 | |
| 19386 | Sixty Nine | £ 341,328,441 | |
| 19387 | Size | £ 1,820,983 | |
| 19388 | size 13s | £ 381,955,715 | |
| 19389 | SJA | £ 40,568,528 | |
| 19390 | SK1 | £ 87,390,278 | |
| 19391 | SK1 Elite | £ 120,651,100 | |
| 19392 | SK1N | £ -5,430 | |
| 19393 | SK2 | £ 86,097,057 | |
| 19394 | SK3 | £ 69,708,527 | |
| 19395 | Skadegamutc | £ 102,163,417 | |
| 19396 | SkaDouche | £ 5,505,074 | |
| 19397 | Skank | £ 23,429,613 | |
| 19398 | skanky co | £ 50,000 | |
| 19399 | Skarface Inc. | £ 4,262,037 | |
| 19400 | Skarphace Inc. | £ -2,447,925 | |
