The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 8401 | Interest | £ 257,540,807 | |
| 8402 | Interesting Inc. | £ 115,169,616 | |
| 8403 | Intergalactic Humanoids | £ 138,751,883 | |
| 8404 | Interior Two | £ 8,053,163 | |
| 8405 | Interlaced ent | £ 26,839,614 | |
| 8406 | Interlaced inc | £ 6,609,164 | |
| 8407 | Interlagos | £ 62,187,801 | |
| 8408 | Internal Audit | £ 5,084,223 | |
| 8409 | Internet Chicken | £ 2,964,862 | |
| 8410 | Intestinal Discomfort | £ 56,322,543 | |
| 8411 | Intimacy | £ 305,413,940 | |
| 8412 | Intl Secret Intel Agency | £ 283,843,957 | |
| 8413 | Intothenight | £ 1,845,829 | |
| 8414 | Intrepia | £ 59,115,436 | |
| 8415 | Invaders 2 | £ 33,587,924 | |
| 8416 | Invaders 4 | £ 2,086,777 | |
| 8417 | invalid | £ -9,650,282 | |
| 8418 | Invasion | £ 249,878,322 | |
| 8419 | Inventions R US | £ 6,854,812 | |
| 8420 | Inverse Ferocity | £ 10,650,542 | |
| 8421 | Inversion | £ 84,939,373 | |
| 8422 | Investigation | £ 32,969,246 | |
| 8423 | Investment | £ 2,230,407,528 | |
| 8424 | Invicible | £ 1,571,549,869 | |
| 8425 | Invictus | £ 234,266,883 | |
| 8426 | Invictus Co. | £ 6,317,756 | |
| 8427 | Invincible Blood | £ 22,642,999 | |
| 8428 | Invisible | £ 5,500,467 | |
| 8429 | IOM | £ 10,369,366 | |
| 8430 | Ipeople | £ 6,717,633 | |
| 8431 | iPhone 5s or iPhone 5c | £ 251,993,104 | |
| 8432 | iphone se 2 | £ 1,537,913 | |
| 8433 | iPhones | £ 59,198,794 | |
| 8434 | Ireland | £ 5,965,992 | |
| 8435 | iReps | £ 2,223,311 | |
| 8436 | Irish Bomber | £ 50,000 | |
| 8437 | Irish Charm | £ 30,032 | |
| 8438 | Irish Red Inc | £ 5,507,308 | |
| 8439 | Irish Republican Army | £ 191,860,837 | |
| 8440 | Irish Wrecking Ball | £ 5,052,671 | |
| 8441 | Irish_Eejit | £ 18,195,704 | |
| 8442 | iron | £ 27,511,144 | |
| 8443 | Iron Man | £ 7,871,863 | |
| 8444 | Iron Mike Tyson | £ 150,339,746 | |
| 8445 | Ironic | £ 83,154,977 | |
| 8446 | Ironing bored | £ 60,780,179 | |
| 8447 | IronMan | £ 5,506,372 | |
| 8448 | Ironmann | £ 11,545,377 | |
| 8449 | Ironn | £ 10,832,104 | |
| 8450 | ironstone | £ 49,003,303 | |
| 8451 | Irrationality | £ 867,873,280 | |
| 8452 | Irreplaceable | £ 951,082,938 | |
| 8453 | Irreverentlie | £ 140,222,074 | |
| 8454 | Irrigation Expert Co | £ 39,980,637 | |
| 8455 | Irrigation Expert Co. | £ 22,530,951 | |
| 8456 | Irrigation Expert Co.. | £ 5,502,700 | |
| 8457 | Irrigation Expert Co... | £ 3,943,383 | |
| 8458 | Irrigation Expert Co.... | £ 5,507,560 | |
| 8459 | Iruga | £ 4,969,817 | |
| 8460 | Irun Bru | £ 993,675 | |
| 8461 | is a crowd | £ 1,036,008,600 | |
| 8462 | is awesome | £ 12,296,497 | |
| 8463 | Is Hott a Lott | £ 1,655,634 | |
| 8464 | Is it Time yet | £ 911,955,935 | |
| 8465 | Is no God | £ 176,272,765 | |
| 8466 | Is Useless | £ 120,551,425 | |
| 8467 | Is worth the Chase | £ 112,313,702 | |
| 8468 | isa | £ 66,754,452 | |
| 8469 | isabelle | £ 17,944,384 | |
| 8470 | Isanoob | £ 6,711,431 | |
| 8471 | Isawmyfishdie | £ -23,197 | |
| 8472 | ISHACs Online Time | £ 2,612,394 | |
| 8473 | ISIS | £ 953,987 | |
| 8474 | isitskill | £ 1,879,352 | |
| 8475 | Islay Malt | £ 1,439,061,587 | |
| 8476 | Isomnitech | £ 4,833,754 | |
| 8477 | Isomnitech2 | £ 3,839,327 | |
| 8478 | Ispep | £ 47,801,292 | |
| 8479 | Israel | £ 342,109,604 | |
| 8480 | Israeli Mossad | £ 459,807,833 | |
| 8481 | Israeli Shabak | £ 406,653,015 | |
| 8482 | iss | £ 1,655,611 | |
| 8483 | Issue | £ 39,390 | |
| 8484 | issues | £ 265,118,150 | |
| 8485 | IsSweet | £ 95,517,466 | |
| 8486 | Istanbul | £ 939,252,267 | |
| 8487 | Istari Incorporated | £ 178,082,232 | |
| 8488 | It All | £ 423,487,180 | |
| 8489 | It all Begins | £ 374,834,782 | |
| 8490 | It doesnt even matter | £ 54,317,166 | |
| 8491 | It Was Me | £ 4,689,219 | |
| 8492 | It wasnt me | £ -1,511,969 | |
| 8493 | It. | £ 31,426,274 | |
| 8494 | Italia | £ 6,965,538 | |
| 8495 | Italia250 | £ 10,218,183 | |
| 8496 | Italia458 | £ 10,954,486 | |
| 8497 | iTALIAN mOB | £ 3,096,865 | |
| 8498 | Italiano Inc | £ 73,757,136 | |
| 8499 | Italy | £ 10,959,839 | |
| 8500 | ItalysGrimReaper | £ 4,607,865 | |
