The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10801 | inteligence | £ 61,895,040 | |
| 10802 | Inteligent | £ 320,833,576 | |
| 10803 | Intellectual Property | £ 319,873,487 | |
| 10804 | Intelligence | £ 1,269,185,751 | |
| 10805 | Intelligence Corp | £ 102,543,750 | |
| 10806 | intelligent conversation | £ 212,620,921 | |
| 10807 | Intelligentsia | £ 16,514,920 | |
| 10808 | Intelligibility | £ 7,019,930,746 | |
| 10809 | intense lines | £ 748,561 | |
| 10810 | Intense Solar | £ 98,277,569 | |
| 10811 | Intent | £ 208,032,022 | |
| 10812 | Intentions | £ 16,187,793 | |
| 10813 | Inter Ya Dog | £ 118,992,808 | |
| 10814 | Inter Ya Gran | £ 12,738,841 | |
| 10815 | Inter Ya Granny | £ 162,752,353 | |
| 10816 | Inter Ye mam | £ 113,368,031 | |
| 10817 | Intercourse | £ 6,705,740 | |
| 10818 | Interest | £ 192,875,093 | |
| 10819 | Interesting Company Name | £ 38,884,650 | |
| 10820 | Interesting Inc. | £ 115,169,616 | |
| 10821 | Interests | £ 46,302,053 | |
| 10822 | Interference | £ 64,743,568 | |
| 10823 | Intergalactic Humanoids | £ 138,751,883 | |
| 10824 | Interior Two | £ 13,505,023 | |
| 10825 | Interlaced ent | £ 26,839,614 | |
| 10826 | Interlaced inc | £ 6,609,164 | |
| 10827 | Interlagos | £ 62,187,801 | |
| 10828 | Internal Affairs | £ 1,404,733,023 | |
| 10829 | Internal Audit | £ 5,084,223 | |
| 10830 | Internal combustion | £ 10,259,967 | |
| 10831 | Internal Server Error | £ 393,636,946 | |
| 10832 | International Mystery | £ 5,506,934 | |
| 10833 | International Rescue | £ 895,827,948 | |
| 10834 | Internet Chicken | £ 2,964,862 | |
| 10835 | InterplanetaryCraft | £ 253,900,663 | |
| 10836 | Interpol | £ 49,581,402 | |
| 10837 | Interruption | £ 45,034,064 | |
| 10838 | Interscope | £ 39,811,703 | |
| 10839 | Interstate 580 | £ 21,911,555 | |
| 10840 | Intestinal Discomfort | £ 56,322,543 | |
| 10841 | Intimacy | £ 460,690,059 | |
| 10842 | Intl Secret Intel Agency | £ 283,843,957 | |
| 10843 | Into Light | £ 2,490,919 | |
| 10844 | Into your DMs | £ 62,271,315 | |
| 10845 | Intothenight | £ 1,845,829 | |
| 10846 | Intrepia | £ 59,115,436 | |
| 10847 | Intrigue | £ 583,594,547 | |
| 10848 | Intuitive | £ 54,700,056 | |
| 10849 | INUYASHA | £ 141,684,637 | |
| 10850 | Invader | £ 166,638,863 | |
| 10851 | Invaders 2 | £ 33,587,924 | |
| 10852 | Invaders 4 | £ 2,086,777 | |
| 10853 | invalid | £ -9,650,282 | |
| 10854 | Invaluable Deeds | £ 33,829,098 | |
| 10855 | Invasion | £ 296,793,233 | |
| 10856 | Invention | £ 1,318,417,423 | |
| 10857 | Inventions R US | £ 6,854,812 | |
| 10858 | Inverse Ferocity | £ 10,650,542 | |
| 10859 | Inversion | £ 84,939,373 | |
| 10860 | Investigation | £ 32,969,246 | |
| 10861 | Investigations | £ 3,221,644 | |
| 10862 | Investment | £ 2,221,888,865 | |
| 10863 | Investor Inc | £ 19,491 | |
| 10864 | Investors | £ 556,818,970 | |
| 10865 | Invicible | £ 1,571,549,869 | |
| 10866 | Invictus | £ 234,266,883 | |
| 10867 | Invictus Co. | £ 6,317,756 | |
| 10868 | Invincibility | £ 7,005,244,755 | |
| 10869 | Invincible Blood | £ 22,642,999 | |
| 10870 | Invisibility | £ 6,932,927,995 | |
| 10871 | Invisible | £ 5,500,467 | |
| 10872 | Invisible Pink Unicorn | £ 1,005,642,494 | |
| 10873 | Invulnerability | £ 7,008,488,576 | |
| 10874 | IOM | £ 10,369,366 | |
| 10875 | IP Tables | £ 1,258,301,796 | |
| 10876 | Ipeople | £ 6,717,633 | |
| 10877 | iPhone 5s or iPhone 5c | £ 251,993,104 | |
| 10878 | iPhone Maxi | £ 21,262,521 | |
| 10879 | iphone se 2 | £ 1,537,913 | |
| 10880 | iPhones | £ 97,659,421 | |
| 10881 | IpWorm | £ 3,642,355 | |
| 10882 | IQM Medical Ltd. | £ 50,000 | |
| 10883 | IRA | £ 65,608,485 | |
| 10884 | Iran | £ 32,215,198 | |
| 10885 | Iraq | £ 44,717,420 | |
| 10886 | irasshaimase | £ 224,142,634 | |
| 10887 | Ireland | £ 5,965,992 | |
| 10888 | iReps | £ 2,223,311 | |
| 10889 | Irish Bomber | £ 50,000 | |
| 10890 | Irish Carbomb | £ 56,896,614 | |
| 10891 | Irish Charm | £ 61,112,164 | |
| 10892 | irish descent | £ 222,031,996 | |
| 10893 | Irish Red Inc | £ 5,507,308 | |
| 10894 | Irish Republican Army | £ 191,860,837 | |
| 10895 | Irish Whiskey | £ 1,291,107 | |
| 10896 | Irish Wrecking Ball | £ 5,052,671 | |
| 10897 | Irish_Eejit | £ 18,195,704 | |
| 10898 | Irn Bru | £ 65,425,967 | |
| 10899 | iron | £ 27,511,144 | |
| 10900 | iron banana | £ 138,370,638 | |
