The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 16801 | orming | £ 84,475,985 | |
| 16802 | Ornamental Knights | £ 3,129,157 | |
| 16803 | Ornate | £ -8,047,867 | |
| 16804 | Orome Aldaron | £ 1,531,184,473 | |
| 16805 | OronzoMafia | £ 5,474,161 | |
| 16806 | Orphans Court | £ 297,981,744 | |
| 16807 | Orpheus | £ 288,236,792 | |
| 16808 | Orphic Co. | £ 4,423,125 | |
| 16809 | Orquinox Co. | £ 1,119 | |
| 16810 | Orricks IT Services | £ 15,082,611 | |
| 16811 | Ortcaj | £ 77,296,813 | |
| 16812 | Orthanc Inc. | £ 147,448,563 | |
| 16813 | Osaka | £ 5,504,057 | |
| 16814 | Osakin | £ 6,161,131 | |
| 16815 | Osbourne | £ 1,744,973 | |
| 16816 | osca-websites | £ 9,181,996 | |
| 16817 | Oscar Meyer | £ 5,773,809 | |
| 16818 | Oscars Emporium | £ 148,690,217 | |
| 16819 | Oscillation | £ 3,001,978 | |
| 16820 | Oscorp Industries | £ 179,374 | |
| 16821 | OSHA | £ 3,477,470 | |
| 16822 | OSHA Six Flags | £ 5,346,082 | |
| 16823 | Osipolis | £ 16,660,041 | |
| 16824 | Osiris | £ 225,126,101 | |
| 16825 | osiris666 | £ -1,880,407 | |
| 16826 | osiris6971 | £ 50,840,965 | |
| 16827 | Oslo | £ 9,880,014 | |
| 16828 | Osmosis | £ 41,633,292 | |
| 16829 | Osprey Close | £ 53,590,765 | |
| 16830 | ossiary | £ 18,019,777 | |
| 16831 | Othello | £ 79,511,406 | |
| 16832 | other comps | £ 286,021,008 | |
| 16833 | Other People | £ 14,453,839 | |
| 16834 | Others | £ 26,039,960 | |
| 16835 | Others sometimes | £ 65,359,099 | |
| 16836 | otherwil | £ 133,717 | |
| 16837 | otherwil2 | £ -34,567,223 | |
| 16838 | otherwil3 | £ 1,893,225 | |
| 16839 | otherwil4 | £ 4,826,025 | |
| 16840 | otherwil5 | £ 829,030 | |
| 16841 | Ottawa | £ 44,778,874 | |
| 16842 | Otter | £ 43,181,655 | |
| 16843 | Ottoman Empire | £ 56,887,049 | |
| 16844 | OU812 | £ 295,697,174 | |
| 16845 | Ouija Industries | £ 345,812 | |
| 16846 | our butterfly | £ 1,134,896,288 | |
| 16847 | our differences | £ 302,439,939 | |
| 16848 | Our Discontent | £ 5,507,855 | |
| 16849 | Our Fathers | £ 116,143,694 | |
| 16850 | Our Golden Years | £ 908,659,300 | |
| 16851 | Our Good Name | £ 571,345,968 | |
| 16852 | Our Happy Memories | £ 34,408,558 | |
| 16853 | our judgement | £ 621,639,331 | |
| 16854 | our lifes | £ 464,291,926 | |
| 16855 | Our Lives | £ 60,309,789 | |
| 16856 | Our Times | £ 1,742,749 | |
| 16857 | our universe | £ 611,100,154 | |
| 16858 | Ours | £ 1,053,657,782 | |
| 16859 | Ourselves | £ 91,484,866 | |
| 16860 | out | £ 85,981,569 | |
| 16861 | out of my face | £ 581,084,624 | |
| 16862 | Out of Nothing | £ 6,356,430 | |
| 16863 | Out Of The Blue | £ 946,989,643 | |
| 16864 | Out You Go | £ 39,675,860 | |
| 16865 | Outer Heaven | £ 58,665,319 | |
| 16866 | Outlandish Labs LLC | £ 1,478,185 | |
| 16867 | Outlaw | £ 10,047,120 | |
| 16868 | Outletsales | £ 1,793,596 | |
| 16869 | outlook responding | £ 647,048,839 | |
| 16870 | Outrageous Fortune | £ 210,155,594 | |
| 16871 | Outside Space | £ 6,959,307 | |
| 16872 | Outside the square | £ 192,973,871 | |
| 16873 | Outsourcing LLC | £ 4,372,708 | |
| 16874 | Outtathisworld plc | £ 1,236,092 | |
| 16875 | Ovation | £ 2,547,061 | |
| 16876 | over educated idiots | £ 146,393,912 | |
| 16877 | Over grown bush | £ 175,719,320 | |
| 16878 | Over Priced | £ 73,067,141 | |
| 16879 | Overclocked RAM | £ 51,978,581 | |
| 16880 | Overdrive | £ 104,717,990 | |
| 16881 | overHelming | £ 491,414,184 | |
| 16882 | Overmeire | £ 5,506,415 | |
| 16883 | Overpoort | £ 2,764,404 | |
| 16884 | Override | £ 17,139,813 | |
| 16885 | overthinking | £ 10,529,502 | |
| 16886 | OverThor | £ 5,507,873 | |
| 16887 | Overwatch | £ 215,454,246 | |
| 16888 | Overwatch LTD | £ 57,470,387 | |
| 16889 | Overwhelming | £ 60,498,024 | |
| 16890 | Ovine Flu | £ 61,245,519 | |
| 16891 | ow3n pte ltd | £ 3,307,504 | |
| 16892 | Owens Enterprise | £ 1,416,549,798 | |
| 16893 | Owl | £ 237,452,023 | |
| 16894 | Owl Faux | £ 383,668 | |
| 16895 | Owls | £ 425,596,680 | |
| 16896 | owned | £ 5,486,100 | |
| 16897 | Owned2EU | £ -76,039,189 | |
| 16898 | Owned3EU | £ 2,813,019 | |
| 16899 | Owned4EU | £ -11,748,456 | |
| 16900 | Owner | £ 6,354,110 | |
