The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 11301 | Industrial Dimensions | £ 590,355 | |
| 11302 | Industrial Revolution | £ 141,560,983 | |
| 11303 | Industry | £ 6,600,814,011 | |
| 11304 | Ineedmoney7 | £ 174,382 | |
| 11305 | INEOS | £ 2,030,937,034 | |
| 11306 | Ineptitude | £ 39,871,120 | |
| 11307 | Inertia | £ 4,614,085,199 | |
| 11308 | Inevitability | £ 17,232,760,298 | |
| 11309 | Inevitably | £ 2,860,134,870 | |
| 11310 | Infadels | £ 6,898,305 | |
| 11311 | Infallibility | £ 7,000,000,000 | |
| 11312 | Infection | £ 35,893,504 | |
| 11313 | Inferior | £ 695,265 | |
| 11314 | Infernal Enterprises | £ 53,505,527 | |
| 11315 | Inferno | £ 13,970,446 | |
| 11316 | Inferno Scorpion | £ 35,686,825 | |
| 11317 | infiltration | £ 289,329,058 | |
| 11318 | infinate | £ 884,198 | |
| 11319 | Infinite Beige | £ 85,034,726 | |
| 11320 | Infinite Enterprises | £ 64,016,264 | |
| 11321 | Infinity | £ 169,159,081 | |
| 11322 | Infinity and Beyond | £ 62,631,233 | |
| 11323 | Inflation | £ 115,274,054 | |
| 11324 | inflection | £ 50,000 | |
| 11325 | inflection point | £ 55,683,488 | |
| 11326 | Inflicting Pain | £ 5,371,678,096 | |
| 11327 | Influence | £ 31,119,222 | |
| 11328 | influenza | £ 2,078,668 | |
| 11329 | Information | £ 2,452,790,604 | |
| 11330 | Information warfare | £ 116,610,408 | |
| 11331 | Infrastructure | £ 110,207,036 | |
| 11332 | Ingalls | £ 5,969,015 | |
| 11333 | Ingenuity | £ 229,132,507 | |
| 11334 | ingersoll | £ 272,873,593 | |
| 11335 | IngloriousG1 | £ 11,085,920 | |
| 11336 | IngloriousG2 | £ 21,578,348 | |
| 11337 | IngloriousG3 | £ 4,960,556 | |
| 11338 | IngloriousG4 | £ 38,861,336 | |
| 11339 | IngloriousG5 | £ 5,227,616 | |
| 11340 | Inheritance | £ 137,354,160 | |
| 11341 | Inhibitions | £ 15,837,437,195 | |
| 11342 | Iniquity | £ 89,292,935 | |
| 11343 | inishing | £ 1,064,467,186 | |
| 11344 | Initech | £ 36,273 | |
| 11345 | Initech Plc | £ 7,929,555 | |
| 11346 | Initiative | £ 149,209,958 | |
| 11347 | Injustice | £ 224,231,007 | |
| 11348 | Ink | £ 47,124,269 | |
| 11349 | Inkatek | £ 1,339,600 | |
| 11350 | Inland Taipan | £ 123,097,369 | |
| 11351 | Inmarsat | £ 71,210,302 | |
| 11352 | Inn of the Last Home | £ 1,403,402 | |
| 11353 | Inner Breads | £ 56,368,692 | |
| 11354 | Inner Station | £ 6,596,243 | |
| 11355 | Innisfree | £ 243,753,959 | |
| 11356 | Innocence | £ 61,612,365 | |
| 11357 | Innocent Enterprise | £ 64,597,451 | |
| 11358 | Innocent Waif Co. | £ 1,079,484 | |
| 11359 | Innovation | £ 52,326,052 | |
| 11360 | Insane in | £ 55,817,640 | |
| 11361 | Insane In The Membrane | £ 492,420,776 | |
| 11362 | Insane Inc | £ 103,865,323 | |
| 11363 | insanity | £ 5,114,820 | |
| 11364 | Insanity.inc | £ -4,636,568 | |
| 11365 | Insatiability | £ 7,000,000,000 | |
| 11366 | Insect Inferno | £ 4,274,551 | |
| 11367 | insects | £ 40,152,036 | |
| 11368 | Insert Tool Tech | £ 218,766,740 | |
| 11369 | Inside Job | £ 49,002,369 | |
| 11370 | Insight | £ 4,930,782 | |
| 11371 | Insignia | £ 15,236,269 | |
| 11372 | Insomnia | £ 111,310,354 | |
| 11373 | Insomnia Inc | £ 13,618,559 | |
| 11374 | Insomniac | £ 349,981,951 | |
| 11375 | Insomniacs | £ 127,075,480 | |
| 11376 | Insomniacs Inc | £ 27,056,872 | |
| 11377 | INSOMNIACS LTD | £ 9,598,294 | |
| 11378 | Inspecticide | £ 86,260,352 | |
| 11379 | Inspecticidus | £ 1,179,300 | |
| 11380 | inspection | £ 71,610,568 | |
| 11381 | Inspector Gadget | £ 1,594,722,874 | |
| 11382 | Inspiration | £ 293,268,063 | |
| 11383 | Inspiron | £ 55,842,972 | |
| 11384 | Insta-threat11 | £ -10,135,618 | |
| 11385 | Instability | £ 7,000,000,000 | |
| 11386 | £ 188,730,522 | ||
| 11387 | Instrument | £ 5,045,464 | |
| 11388 | insubordination | £ 1,376,802,401 | |
| 11389 | Insufficient Amount | £ 115,460,289 | |
| 11390 | Insufficient Storage | £ 150,111,443 | |
| 11391 | Insult to Injury | £ 152,407,484 | |
| 11392 | Insults | £ 555,598,769 | |
| 11393 | Insurance | £ 192,712,894 | |
| 11394 | Insurection | £ 173,310,394 | |
| 11395 | Insurrection | £ 61,411,282 | |
| 11396 | IntArch | £ 4,051,737 | |
| 11397 | Integrated Finance | £ 5,613,209 | |
| 11398 | Integrity | £ 62,272,169 | |
| 11399 | Intel | £ 4,159,306 | |
| 11400 | Intel 8008 | £ 207,187,870 | |
