The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12001 | jungle entre | £ 50,000 | |
| 12002 | jungle. | £ 44,182,431 | |
| 12003 | Junglefever | £ 24,861,201 | |
| 12004 | Juniper Construction | £ 79,115,384 | |
| 12005 | Junk | £ 431,654,334 | |
| 12006 | junk inc | £ 51,980,399 | |
| 12007 | junk inc 2 | £ 50,341,854 | |
| 12008 | junk inc 3 | £ 9,989,938 | |
| 12009 | junk inc 4 | £ 5,500,018 | |
| 12010 | junk inc 5 | £ 7,606,826 | |
| 12011 | JunkCity INC | £ 10,407,977 | |
| 12012 | Juno and Roux | £ 14,753,398 | |
| 12013 | Jupiler | £ 5,683,388 | |
| 12014 | jupiter | £ 1,355,152 | |
| 12015 | Jupiter Mining Corp | £ 28,925,807 | |
| 12016 | Jura | £ 1,697,205,426 | |
| 12017 | Jurassic Park | £ 48,039,349 | |
| 12018 | Jurassic Pork | £ 96,094,152 | |
| 12019 | Jurgen Klopp | £ 43,068,806 | |
| 12020 | Jurrassic Park | £ 2,605,916 | |
| 12021 | jurs | £ 288,656,507 | |
| 12022 | Just | £ 28,365,142 | |
| 12023 | Just A Day | £ 26,082,013 | |
| 12024 | Just A Dream | £ 12,265,757 | |
| 12025 | Just Bombing | £ 59,782,940 | |
| 12026 | Just Cruising | £ 51,129,026 | |
| 12027 | Just Eat | £ 40,701,628 | |
| 12028 | Just For You | £ 17,400,978 | |
| 12029 | Just Keep Going | £ 44,500,000 | |
| 12030 | just let me be | £ 6,707,944 | |
| 12031 | Just one more | £ 136,190,198 | |
| 12032 | Just Passing Through | £ 5,742,812,728 | |
| 12033 | Just Retribution | £ 6,953,544 | |
| 12034 | Just Sofa King Cool | £ 9,519,130 | |
| 12035 | Just starting out | £ 10,971,118 | |
| 12036 | Just Tapping It In | £ 40,367,495 | |
| 12037 | Just The Tip | £ 279,851,937 | |
| 12038 | Just to Aim You | £ 243,977 | |
| 12039 | just waking up | £ 127,609,044 | |
| 12040 | JUST WANT TO HAVE FUN | £ 1,131,397,881 | |
| 12041 | justamoment | £ 17,544,165 | |
| 12042 | Justice | £ 137,228,468 | |
| 12043 | Justice League | £ 7,416,986 | |
| 12044 | Justice Leak | £ 35,988,289 | |
| 12045 | Justin | £ 42,253,526 | |
| 12046 | Justin Bieber | £ 27,561,000 | |
| 12047 | Justin Sane Holdings | £ -21,069,787 | |
| 12048 | justin4 | £ 6,356,313 | |
| 12049 | JW Enterprises | £ -1,450,018 | |
| 12050 | JW Enterprises 2 | £ 22,945,339 | |
| 12051 | JW Enterprises 3 | £ 50,000 | |
| 12052 | JW Enterprises 4 | £ 50,000 | |
| 12053 | Jwingly | £ 5,534,464 | |
| 12054 | jworldbaby | £ 50,000 | |
| 12055 | k corporation | £ 110,877,229 | |
| 12056 | K Inc | £ 1,555,269 | |
| 12057 | K International | £ 2,087,656 | |
| 12058 | K K Downing | £ 1,008,895,327 | |
| 12059 | K1-MAX | £ 56,042,525 | |
| 12060 | K9 and Company | £ 10,611,205 | |
| 12061 | K9 Associates | £ 50,000 | |
| 12062 | KA Holdings Corp | £ 6,818,486 | |
| 12063 | Kabam | £ 105,435,232 | |
| 12064 | kabanyaka | £ 37,379,885 | |
| 12065 | kaboom | £ 13,912,493 | |
| 12066 | Kaboom Co | £ 81,203,546 | |
| 12067 | kaboom1 | £ 3,330,507 | |
| 12068 | kabooooom | £ 674,119 | |
| 12069 | Kadabra | £ 61,607,571 | |
| 12070 | Kade Inc. | £ 5,461,496 | |
| 12071 | Kade Inc. 2 | £ 200,000 | |
| 12072 | Kade Inc. 3 | £ 164,379 | |
| 12073 | Kael | £ 237,447,436 | |
| 12074 | Kafka Ltd | £ 31,546,017 | |
| 12075 | Kagawa Kollective | £ 5,483,368 | |
| 12076 | Kagazura | £ 11,876,358 | |
| 12077 | Kage Inc | £ 1,319,175 | |
| 12078 | Kagero | £ 3,445,787 | |
| 12079 | kahuna | £ 88,187,836 | |
| 12080 | kaiser ltd | £ 778,220,328 | |
| 12081 | Kajira Industries | £ -3,600,600 | |
| 12082 | Kakorrhaphiophobia | £ 50,200,911 | |
| 12083 | Kalamitys | £ 5,359,945 | |
| 12084 | Kalatakaya | £ 433,336,119 | |
| 12085 | Kaldera | £ 53,561,134 | |
| 12086 | KallieKarate | £ 59,857,180 | |
| 12087 | Kama Sutra | £ 213,600,872 | |
| 12088 | Kamag | £ 215,654,802 | |
| 12089 | Kamarov | £ 11,237,077 | |
| 12090 | Kamerton Inc. | £ 645,890 | |
| 12091 | Kamikaze Airlines Inc. | £ 78,430,948 | |
| 12092 | Kamikaze Bomber | £ 74,814,604 | |
| 12093 | Kaminskas | £ 55,868,286 | |
| 12094 | kanasai | £ 50,000 | |
| 12095 | Kandiyohi County | £ 53,738,410 | |
| 12096 | KandS | £ 3,317,383 | |
| 12097 | Kane | £ 43,740,842 | |
| 12098 | Kang Inc. | £ 1,312,387 | |
| 12099 | kangaroo | £ 139,832,545 | |
| 12100 | Kangaroo Meat | £ 54,454,388 | |
