The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 8501 | Insert Tool Tech | £ 207,767,516 | |
| 8502 | inside | £ 545,418,918 | |
| 8503 | Inside Man | £ 151,378,878 | |
| 8504 | Insight | £ 4,930,782 | |
| 8505 | Insomnia | £ 111,310,354 | |
| 8506 | Insomnia Inc | £ 13,618,559 | |
| 8507 | Insomniac | £ 327,423,684 | |
| 8508 | Insomniacs Inc | £ 247,889 | |
| 8509 | InsomniaX | £ 55,763,119 | |
| 8510 | Inspecticide | £ 86,260,352 | |
| 8511 | Inspecticidus | £ 1,179,300 | |
| 8512 | Inspiration | £ 138,749,577 | |
| 8513 | Inspired | £ 172,939,387 | |
| 8514 | Inspiron | £ 55,842,972 | |
| 8515 | Insta-threat11 | £ -10,135,618 | |
| 8516 | £ 188,730,522 | ||
| 8517 | Instrument | £ 5,045,464 | |
| 8518 | Insufficient Amount | £ 115,460,289 | |
| 8519 | Insults | £ 555,598,769 | |
| 8520 | Insurance | £ 192,712,894 | |
| 8521 | Insurgency | £ 42,263,108 | |
| 8522 | IntArch | £ 4,051,737 | |
| 8523 | Integrated Finance | £ 5,613,209 | |
| 8524 | Integrity | £ 62,272,169 | |
| 8525 | Intel | £ 4,159,306 | |
| 8526 | Intel Corperation | £ 5,502,692 | |
| 8527 | INTELECT MID | £ 4,542,979 | |
| 8528 | INTELECT NORTH | £ 3,506,604 | |
| 8529 | INTELECT SOUTH | £ 5,501,704 | |
| 8530 | Inteligent | £ 320,833,576 | |
| 8531 | Intelligence | £ 1,269,185,751 | |
| 8532 | intense lines | £ 748,561 | |
| 8533 | Intense Solar | £ 50,000 | |
| 8534 | Intent | £ 208,032,022 | |
| 8535 | Intentions | £ 16,187,793 | |
| 8536 | Inter Ya Dog | £ 53,832,886 | |
| 8537 | Inter Ya Gran | £ 9,894,081 | |
| 8538 | Inter Ya Granny | £ 44,877,387 | |
| 8539 | Inter Ye mam | £ 33,791,306 | |
| 8540 | Intercourse | £ 5,503,657 | |
| 8541 | Interest | £ 257,540,807 | |
| 8542 | Interesting Inc. | £ 115,169,616 | |
| 8543 | Intergalactic Humanoids | £ 138,751,883 | |
| 8544 | Interior Two | £ 8,053,163 | |
| 8545 | Interlaced ent | £ 26,839,614 | |
| 8546 | Interlaced inc | £ 6,609,164 | |
| 8547 | Interlagos | £ 62,187,801 | |
| 8548 | Internal Audit | £ 5,084,223 | |
| 8549 | Internet Chicken | £ 2,964,862 | |
| 8550 | Intestinal Discomfort | £ 56,322,543 | |
| 8551 | Intimacy | £ 305,413,940 | |
| 8552 | Intl Secret Intel Agency | £ 283,843,957 | |
| 8553 | Intothenight | £ 1,845,829 | |
| 8554 | Intrepia | £ 59,115,436 | |
| 8555 | Invader | £ 12,004,222 | |
| 8556 | Invaders 2 | £ 33,587,924 | |
| 8557 | Invaders 4 | £ 2,086,777 | |
| 8558 | invalid | £ -9,650,282 | |
| 8559 | Invasion | £ 270,293,233 | |
| 8560 | Inventions R US | £ 6,854,812 | |
| 8561 | Inverse Ferocity | £ 10,650,542 | |
| 8562 | Inversion | £ 84,939,373 | |
| 8563 | Investigation | £ 32,969,246 | |
| 8564 | Investment | £ 2,230,407,528 | |
| 8565 | Invicible | £ 1,571,549,869 | |
| 8566 | Invictus | £ 234,266,883 | |
| 8567 | Invictus Co. | £ 6,317,756 | |
| 8568 | Invincible Blood | £ 22,642,999 | |
| 8569 | Invisible | £ 5,500,467 | |
| 8570 | Invisible Gorillas | £ 232,865,683 | |
| 8571 | IOM | £ 10,369,366 | |
| 8572 | Ipeople | £ 6,717,633 | |
| 8573 | iPhone 5s or iPhone 5c | £ 251,993,104 | |
| 8574 | iphone se 2 | £ 1,537,913 | |
| 8575 | iPhones | £ 59,198,794 | |
| 8576 | Ireland | £ 5,965,992 | |
| 8577 | iReps | £ 2,223,311 | |
| 8578 | Irish Bomber | £ 50,000 | |
| 8579 | Irish Charm | £ 30,032 | |
| 8580 | Irish Red Inc | £ 5,507,308 | |
| 8581 | Irish Republican Army | £ 191,860,837 | |
| 8582 | Irish Wrecking Ball | £ 5,052,671 | |
| 8583 | Irish_Eejit | £ 18,195,704 | |
| 8584 | iron | £ 27,511,144 | |
| 8585 | iron banana | £ 54,042,282 | |
| 8586 | Iron hammer | £ 54,273,909 | |
| 8587 | Iron Man | £ 7,871,863 | |
| 8588 | Iron Mike Tyson | £ 201,339,746 | |
| 8589 | Iron warx | £ 237,950,999 | |
| 8590 | Iron werx | £ 299,003,815 | |
| 8591 | Iron word | £ 376,837,186 | |
| 8592 | Ironic | £ 83,154,977 | |
| 8593 | Ironing bored | £ 60,780,179 | |
| 8594 | IronMan | £ 5,506,372 | |
| 8595 | Ironmann | £ 11,545,377 | |
| 8596 | Ironn | £ 10,832,104 | |
| 8597 | ironstone | £ 49,003,303 | |
| 8598 | Irrationality | £ 750,038,503 | |
| 8599 | Irreplaceable | £ 951,082,938 | |
| 8600 | Irreverentlie | £ 140,222,074 | |
