The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12701 | Ogrimmar | £ 35,379,515 | |
| 12702 | Oh Herro | £ 2,995,837 | |
| 12703 | Oh Jesus Christ | £ 9,142,153 | |
| 12704 | Oh No | £ 173,679,157 | |
| 12705 | Oh YEAH | £ 2,549,726 | |
| 12706 | ohara inc | £ -165,571 | |
| 12707 | ohe herrow | £ 5,703,509 | |
| 12708 | Ohnoitsmymothernlaw | £ 5,504,562 | |
| 12709 | Ohtaku inc | £ 3,600,029 | |
| 12710 | Ohtaku inc1 | £ 4,456,703 | |
| 12711 | Ohtaku inc2 | £ 1,267,353 | |
| 12712 | Ohtaku inc3 | £ 4,191,984 | |
| 12713 | Ohtaku inc4 | £ 4,118,968 | |
| 12714 | ohyesyesh | £ 50,000 | |
| 12715 | Oil | £ 833,968,470 | |
| 12716 | Oil CONGLOMO | £ 2,646,845 | |
| 12717 | Oil Field | £ 271,568 | |
| 12718 | Oil Inc | £ 1,596,655 | |
| 12719 | Oil Industry | £ 4,441,721 | |
| 12720 | Oil Rigger | £ 2,151,587,047 | |
| 12721 | Oilfield Industries | £ 9,854,297 | |
| 12722 | oiu | £ 5,498,037 | |
| 12723 | OJ da Juiceman | £ 109,855 | |
| 12724 | OK Tom | £ 213,436,455 | |
| 12725 | OKFurniture | £ 50,000 | |
| 12726 | OKG Shed | £ -329,334 | |
| 12727 | OKS 1 PTE LTD | £ 50,000 | |
| 12728 | OKS PTE LTD | £ 2,148,676 | |
| 12729 | OLafa | £ 5,088,982 | |
| 12730 | Oland Ltd | £ 50,000 | |
| 12731 | Olay | £ 326,245,749 | |
| 12732 | Old Age | £ 423,020,411 | |
| 12733 | Old Bay | £ 123,534,579 | |
| 12734 | Old Bill | £ 45,792,842 | |
| 12735 | Old Carpet | £ 163,972,008 | |
| 12736 | old farts | £ 3,542,428,093 | |
| 12737 | Old Feuds | £ 44,696,704 | |
| 12738 | Old Granny | £ 9,329,769 | |
| 12739 | old lard | £ -7,521,344 | |
| 12740 | old legends | £ 14,735,844 | |
| 12741 | Old men | £ 397,899,239 | |
| 12742 | Old No. 7 | £ 657,159,328 | |
| 12743 | Old people | £ 41,298,004 | |
| 12744 | Old Rocker | £ 414,292,754 | |
| 12745 | Old School | £ 5,514,041 | |
| 12746 | old skool butta | £ 614,087 | |
| 12747 | Old Smoky | £ 622,122,584 | |
| 12748 | Old Socks | £ 144,379,758 | |
| 12749 | Old Whiskey | £ 17,558,590 | |
| 12750 | Old World Industry | £ 1,734,908 | |
| 12751 | Old World Ventures | £ 50,000 | |
| 12752 | OlDirty | £ 47,991,916 | |
| 12753 | oldschool | £ 121,302,173 | |
| 12754 | Oligarchy | £ 556,860,397 | |
| 12755 | Oligarchy inc. | £ 7,116,723 | |
| 12756 | olis | £ 91,036,818 | |
| 12757 | Oliver Cromwell | £ 220,112,740 | |
| 12758 | Oliver Queen | £ 56,107,912 | |
| 12759 | Olivers Imagination | £ 124,320,555 | |
| 12760 | Olrik | £ 22,147,425 | |
| 12761 | Olympia | £ 112,782,553 | |
| 12762 | olympic rings | £ 3,084,696,830 | |
| 12763 | Olympics | £ 5,508,747 | |
| 12764 | Olympus | £ 2,062,876,669 | |
| 12765 | Omega | £ 6,183,955 | |
| 12766 | Omega Indusries | £ 37,799 | |
| 12767 | OmegaFox Inc. | £ 1,266,634 | |
| 12768 | Omelette | £ 10,061,528 | |
| 12769 | Omerta | £ 1,007,186,123 | |
| 12770 | Omerta Inc. | £ 5,500,096 | |
| 12771 | Omni | £ 26,585,058 | |
| 12772 | Omni Consumer Products | £ -23,968,848 | |
| 12773 | omni4 | £ 1,185,151 | |
| 12774 | Omnia | £ 29,796,207 | |
| 12775 | on a stick | £ 13,410 | |
| 12776 | On all you Candyass | £ 69,045,286 | |
| 12777 | On Industries | £ 1,896,074 | |
| 12778 | On It | £ 59,533,659 | |
| 12779 | On My Mind | £ 87,748,385 | |
| 12780 | On The Fritz | £ 79,242,996 | |
| 12781 | On the move | £ 21,674,794 | |
| 12782 | on the road | £ 405,722,546 | |
| 12783 | Once Upon a Time | £ 24,760,937 | |
| 12784 | Once Were Warriors | £ 54,754,263 | |
| 12785 | one | £ 341,379,992 | |
| 12786 | One and a Half | £ 8,610,014,000 | |
| 12787 | One Company | £ 398,709,264 | |
| 12788 | one dollar company | £ 56,422,541 | |
| 12789 | One Eyed Three Leg Dog | £ 63,605,247 | |
| 12790 | One gun | £ 46,658,283 | |
| 12791 | One Hit Wonder | £ 30,087,678 | |
| 12792 | One Hundred Netro Bucks | £ 130,455,162 | |
| 12793 | One Insane Rastaman | £ 273,250,880 | |
| 12794 | one love | £ 3,838,898 | |
| 12795 | One Man | £ 3,996,240 | |
| 12796 | one man crying | £ 1,050,939,923 | |
| 12797 | One Mind | £ -5,139,455 | |
| 12798 | one of craze | £ 398,067,001 | |
| 12799 | One Piece | £ 11,282,781 | |
| 12800 | One Pound Fish | £ 1,584,921 | |
