The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 8501 | Interlaced inc | £ 6,609,164 | |
| 8502 | Interlagos | £ 62,187,801 | |
| 8503 | Internal Audit | £ 5,084,223 | |
| 8504 | Internet Chicken | £ 2,964,862 | |
| 8505 | Intestinal Discomfort | £ 56,322,543 | |
| 8506 | Intimacy | £ 305,413,940 | |
| 8507 | Intl Secret Intel Agency | £ 283,843,957 | |
| 8508 | Intothenight | £ 1,845,829 | |
| 8509 | Intrepia | £ 59,115,436 | |
| 8510 | Invaders 2 | £ 33,587,924 | |
| 8511 | Invaders 4 | £ 2,086,777 | |
| 8512 | invalid | £ -9,650,282 | |
| 8513 | Invasion | £ 258,293,233 | |
| 8514 | Inventions R US | £ 6,854,812 | |
| 8515 | Inverse Ferocity | £ 10,650,542 | |
| 8516 | Inversion | £ 84,939,373 | |
| 8517 | Investigation | £ 32,969,246 | |
| 8518 | Investment | £ 2,230,407,528 | |
| 8519 | Invicible | £ 1,571,549,869 | |
| 8520 | Invictus | £ 234,266,883 | |
| 8521 | Invictus Co. | £ 6,317,756 | |
| 8522 | Invincible Blood | £ 22,642,999 | |
| 8523 | Invisible | £ 5,500,467 | |
| 8524 | Invisible Gorillas | £ 191,579,363 | |
| 8525 | IOM | £ 10,369,366 | |
| 8526 | Ipeople | £ 6,717,633 | |
| 8527 | iPhone 5s or iPhone 5c | £ 251,993,104 | |
| 8528 | iphone se 2 | £ 1,537,913 | |
| 8529 | iPhones | £ 59,198,794 | |
| 8530 | Ireland | £ 5,965,992 | |
| 8531 | iReps | £ 2,223,311 | |
| 8532 | Irish Bomber | £ 50,000 | |
| 8533 | Irish Charm | £ 30,032 | |
| 8534 | Irish Red Inc | £ 5,507,308 | |
| 8535 | Irish Republican Army | £ 191,860,837 | |
| 8536 | Irish Wrecking Ball | £ 5,052,671 | |
| 8537 | Irish_Eejit | £ 18,195,704 | |
| 8538 | iron | £ 27,511,144 | |
| 8539 | iron banana | £ 53,837,054 | |
| 8540 | Iron hammer | £ 57,414,338 | |
| 8541 | Iron Man | £ 7,871,863 | |
| 8542 | Iron Mike Tyson | £ 168,339,746 | |
| 8543 | Iron warx | £ 190,281,709 | |
| 8544 | Iron werx | £ 180,577,236 | |
| 8545 | Iron word | £ 231,812,234 | |
| 8546 | Ironic | £ 83,154,977 | |
| 8547 | Ironing bored | £ 60,780,179 | |
| 8548 | IronMan | £ 5,506,372 | |
| 8549 | Ironmann | £ 11,545,377 | |
| 8550 | Ironn | £ 10,832,104 | |
| 8551 | ironstone | £ 49,003,303 | |
| 8552 | Irrationality | £ 780,064,003 | |
| 8553 | Irreplaceable | £ 951,082,938 | |
| 8554 | Irreverentlie | £ 140,222,074 | |
| 8555 | Irrigation Expert Co | £ 39,980,637 | |
| 8556 | Irrigation Expert Co. | £ 22,530,951 | |
| 8557 | Irrigation Expert Co.. | £ 5,502,700 | |
| 8558 | Irrigation Expert Co... | £ 3,943,383 | |
| 8559 | Irrigation Expert Co.... | £ 5,507,560 | |
| 8560 | Iruga | £ 4,969,817 | |
| 8561 | Irun Bru | £ 993,675 | |
| 8562 | is a crowd | £ 1,037,893,600 | |
| 8563 | is awesome | £ 12,296,497 | |
| 8564 | is coming | £ 5,656,862 | |
| 8565 | Is Hott a Lott | £ 1,655,634 | |
| 8566 | Is it Time yet | £ 911,955,935 | |
| 8567 | Is no God | £ 314,797,975 | |
| 8568 | Is Useless | £ 120,551,425 | |
| 8569 | Is worth the Chase | £ 112,313,702 | |
| 8570 | isa | £ 66,754,452 | |
| 8571 | isabelle | £ 17,944,384 | |
| 8572 | Isanoob | £ 6,711,431 | |
| 8573 | Isawmyfishdie | £ -23,197 | |
| 8574 | ISHACs Online Time | £ 2,612,394 | |
| 8575 | ISIS | £ 953,987 | |
| 8576 | isitskill | £ 1,879,352 | |
| 8577 | Islay Malt | £ 1,440,876,141 | |
| 8578 | Isomnitech | £ 4,833,754 | |
| 8579 | Isomnitech2 | £ 3,839,327 | |
| 8580 | Ispep | £ 47,801,292 | |
| 8581 | Israel | £ 342,109,604 | |
| 8582 | Israeli Mossad | £ 459,807,833 | |
| 8583 | Israeli Shabak | £ 406,653,015 | |
| 8584 | iss | £ 1,655,611 | |
| 8585 | Issue | £ 39,390 | |
| 8586 | issues | £ 265,118,150 | |
| 8587 | IsSweet | £ 95,517,466 | |
| 8588 | Istanbul | £ 1,291,624,137 | |
| 8589 | Istari Incorporated | £ 178,082,232 | |
| 8590 | It All | £ 423,487,180 | |
| 8591 | It all Begins | £ 374,834,782 | |
| 8592 | It doesnt even matter | £ 54,317,166 | |
| 8593 | It Was Me | £ 4,689,219 | |
| 8594 | It wasnt me | £ -1,511,969 | |
| 8595 | it you sissy | £ 4,220,115 | |
| 8596 | It. | £ 31,426,274 | |
| 8597 | Italia | £ 6,965,538 | |
| 8598 | Italia250 | £ 10,218,183 | |
| 8599 | Italia458 | £ 10,954,486 | |
| 8600 | iTALIAN mOB | £ 3,096,865 | |
