The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 18101 | Side Hustle | £ 27,234,189 | |
| 18102 | Side Pony | £ 191,337,989 | |
| 18103 | SideLineD | £ 3,552,075 | |
| 18104 | Sidewinder | £ 227,297,344 | |
| 18105 | Sidewinder Missle | £ 73,570,827 | |
| 18106 | Sidney inc | £ 50,000 | |
| 18107 | Sids Emporium | £ 15,032,548 | |
| 18108 | Sieber | £ 50,000 | |
| 18109 | Sierra Leone | £ 64,322,248 | |
| 18110 | Sifosed Enterprises | £ 25,255 | |
| 18111 | Sift co | £ -137,410 | |
| 18112 | SIG Sauer | £ 51,238,462 | |
| 18113 | Sight | £ 200,734,160 | |
| 18114 | Sigma | £ 69,225,770 | |
| 18115 | Sigma Industries | £ 17,556 | |
| 18116 | Sigma-957 | £ 56,676,770 | |
| 18117 | Sigma-Aldrich | £ 4,510,106,482 | |
| 18118 | Sign | £ 51,894,494 | |
| 18119 | Signals | £ 334,445,981 | |
| 18120 | Silat | £ 224,852,851 | |
| 18121 | Silence | £ 22,563,076 | |
| 18122 | silent assassin | £ 1,250,769 | |
| 18123 | Silent Contractors | £ 50,000 | |
| 18124 | Silent Inc. | £ 286,365,315 | |
| 18125 | Silent Predator | £ 1,014,627 | |
| 18126 | Silent Stalker | £ 1,059,795 | |
| 18127 | Silent Stalkers | £ 5,382,002 | |
| 18128 | Silent Synd. | £ 4,093,686 | |
| 18129 | Silent_Whisper | £ 189,456,569 | |
| 18130 | Silica Gel | £ 416,330,491 | |
| 18131 | Silk Boxers | £ 79,929,679 | |
| 18132 | Silly Sausage | £ 57,166,550 | |
| 18133 | Silly Sock Emporium | £ 33,956,557 | |
| 18134 | Silly Walks | £ 8,973,455 | |
| 18135 | SillyPutty | £ 39,214,929 | |
| 18136 | Silmarils Inc | £ 5,502,423 | |
| 18137 | Siloporten | £ 6,969,503 | |
| 18138 | silva | £ 36,054,742 | |
| 18139 | Silver | £ 1,180,220,963 | |
| 18140 | Silver Aftershock | £ 56,640,118 | |
| 18141 | Silver Haze | £ 320,165,501 | |
| 18142 | Silver Inc | £ 10,197,661 | |
| 18143 | Silver Plated Netrobucks | £ 169,274,529 | |
| 18144 | Silver Pot | £ 42,875,152 | |
| 18145 | Silver Shamrock Inc | £ 2,317,866 | |
| 18146 | Silver Spoon Cafe | £ 297,835,268 | |
| 18147 | Silver Surfer | £ 760,615,199 | |
| 18148 | Silver Wings | £ 1,381,690,294 | |
| 18149 | Silverdale St | £ 30,471,547 | |
| 18150 | Silvermoon Enterprises | £ -214,855 | |
| 18151 | Silvertide Enterprises | £ -1,627,976 | |
| 18152 | silvra | £ 54,285,205 | |
| 18153 | Sim City3 | £ 2,672,113 | |
| 18154 | Simcoe County | £ 5,557,781 | |
| 18155 | Simon Cowells posterior | £ 240,514,908 | |
| 18156 | Simon Fraser University | £ 119,553,446 | |
| 18157 | Simon The Sprout | £ 392,953,118 | |
| 18158 | Simple | £ 199,139,466 | |
| 18159 | Simple Inc. | £ 161,992,874 | |
| 18160 | Simple Things | £ 55,697,089 | |
| 18161 | simple things in life | £ -150,921 | |
| 18162 | Simpleton Co. | £ 154,696,172 | |
| 18163 | Simplicity | £ 73,991,816 | |
| 18164 | Simply Caesar | £ 95,974,460 | |
| 18165 | simply does it | £ 16,297,060 | |
| 18166 | simply nuts | £ 3,357,807 | |
| 18167 | Simply Sane Products | £ 46,396,437 | |
| 18168 | Simply Subsidiary | £ 23,554,862 | |
| 18169 | simplysouthern | £ 404,043 | |
| 18170 | Sims Company | £ 69,553,563 | |
| 18171 | Simulation | £ 4,647,866 | |
| 18172 | Sin | £ 882,690,513 | |
| 18173 | Sin City | £ 92,965,888 | |
| 18174 | Sin Co | £ 617 | |
| 18175 | Sin Industries | £ 1,511,830 | |
| 18176 | Sin Sentido | £ 253,153,436 | |
| 18177 | Sinaloa | £ 485,559,915 | |
| 18178 | Sinaloa Cartel | £ 102,795,331 | |
| 18179 | Sinar | £ 46,584,916 | |
| 18180 | Sinatra Select | £ 636,672,700 | |
| 18181 | Sinbad the sailor | £ 214,550,415 | |
| 18182 | Since Day Five | £ 2,948,115,072 | |
| 18183 | Since Day four | £ 1,582,450,594 | |
| 18184 | Since Day One | £ 2,293,425,613 | |
| 18185 | Since Day Three | £ 321,438,655 | |
| 18186 | Since Day two | £ 955,774,076 | |
| 18187 | sincity | £ 207,710,495 | |
| 18188 | Sinclair Girnigoe | £ 1,133,668,388 | |
| 18189 | Sindar | £ 5,505,299 | |
| 18190 | SINDATERA | £ 4,301,225 | |
| 18191 | Singani | £ 10,311,313,621 | |
| 18192 | Singapore | £ 453,579,334 | |
| 18193 | Singapura | £ 51,209,029 | |
| 18194 | Singh | £ 10,715,804 | |
| 18195 | singham inc | £ 10,963,284 | |
| 18196 | SinghLTD2 | £ 10,446,400 | |
| 18197 | Single Barrel | £ 988,439,929 | |
| 18198 | Single Malt | £ 16,426,947 | |
| 18199 | Single Moms | £ 69,356,630 | |
| 18200 | Sinic Leccy Co | £ 477,855,468 | |
