The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12001 | Knowme | £ 50,000 | |
| 12002 | Knuck If You Buck | £ 100,950,214 | |
| 12003 | Knuckels | £ 26,841,839 | |
| 12004 | Knuckles Parlor | £ 23,084 | |
| 12005 | KnyteNet | £ 58,872,618 | |
| 12006 | Kobalos | £ 151,135,988 | |
| 12007 | Kobe Cattle | £ 381,726,228 | |
| 12008 | Kobol | £ 104,355,490 | |
| 12009 | Koca Popovic | £ 140,427,377 | |
| 12010 | Koenigsegg CCXR Trevita | £ 91,581,683 | |
| 12011 | kogarasumaru | £ 597,595 | |
| 12012 | Koh and Oei LLC | £ 100,130,740 | |
| 12013 | Kohark | £ 2,311,482 | |
| 12014 | Kohden Co | £ 224,217,984 | |
| 12015 | Kojima Productions | £ 82,248,983 | |
| 12016 | KOKO CHOO | £ 4,172,979 | |
| 12017 | kokoko | £ 50,000 | |
| 12018 | Kola | £ 65,752,414 | |
| 12019 | KOLenterprise | £ 1,753,282 | |
| 12020 | Kolgomov | £ 45,432,197 | |
| 12021 | Kolkata Knight Riders | £ 75,065,476 | |
| 12022 | KollofSkis | £ 78,166,268 | |
| 12023 | Kolo Mee | £ 34,755,663 | |
| 12024 | Kombat | £ 104,255,546 | |
| 12025 | Komodo | £ 187,869,778 | |
| 12026 | Komodo Dragon | £ 120,420,530 | |
| 12027 | Komohomo | £ 826,658,691 | |
| 12028 | Kong | £ 5,283,249 | |
| 12029 | KongBall | £ 565,529 | |
| 12030 | Kongo Gumi | £ 10,096,353 | |
| 12031 | KongZilla | £ 14,051,574,216 | |
| 12032 | Konoha | £ 5,505,394 | |
| 12033 | KooDa | £ 1,566,005,498 | |
| 12034 | Kools | £ 5,083,488 | |
| 12035 | Koooll Katz | £ 204,839,090 | |
| 12036 | Koral Industries | £ 901,411 | |
| 12037 | Korczyk Industries | £ 148,275 | |
| 12038 | Korea | £ 105,036,580 | |
| 12039 | Korean Drama | £ 114,805,049 | |
| 12040 | Koridai | £ 3,674,298 | |
| 12041 | KoRn | £ 114,260,513 | |
| 12042 | Kors | £ 41,000,427 | |
| 12043 | Kota Inc | £ 3,074,772 | |
| 12044 | KOTECHA FAMILY REALTY CO | £ 2,623,066 | |
| 12045 | Kotto Corp | £ 49,972 | |
| 12046 | Kotto Corp 2 | £ -817,713 | |
| 12047 | KOUCH ENT. | £ 1,818 | |
| 12048 | Koungs Wantan Mee | £ 172,857,007 | |
| 12049 | Kowloon | £ 239,480,616 | |
| 12050 | Koza | £ 73,944,536 | |
| 12051 | Kozaki Idut | £ 16,444,330 | |
| 12052 | Kozi | £ 282,049 | |
| 12053 | KP Holdings Corp | £ 101,975,884 | |
| 12054 | KPcorp | £ 573,343,985 | |
| 12055 | KPInc | £ -2,654,507 | |
| 12056 | KPOW | £ 5,963,984 | |
| 12057 | KPP Inc | £ 3,538,705 | |
| 12058 | Kraft | £ 6,936,427 | |
| 12059 | Krakatoa | £ 59,812,868 | |
| 12060 | Kraken Wakes | £ 149,467,603 | |
| 12061 | Kramer | £ 19,726,502 | |
| 12062 | Kramerica | £ 5,841,932 | |
| 12063 | Krash | £ 6,364,384 | |
| 12064 | KraZe Inc. | £ 2,769,200 | |
| 12065 | Kremmen Inc | £ 2,450,721 | |
| 12066 | Kriminal | £ 13,588,142 | |
| 12067 | KRIS | £ 2,802,010 | |
| 12068 | KrisCorp | £ 10,197,833 | |
| 12069 | Krist | £ 5,874,508 | |
| 12070 | Kristinsson | £ 5,501,849 | |
| 12071 | Kroll | £ 96,657,317 | |
| 12072 | Krondor | £ 1,195,958 | |
| 12073 | Kronenbourg | £ 109,596,002 | |
| 12074 | Kronenburgpark | £ 3,090,886 | |
| 12075 | Kroning | £ 19,442,525 | |
| 12076 | Krose | £ 50,000 | |
| 12077 | Kruger | £ 297,948 | |
| 12078 | Krull | £ 5,582,690 | |
| 12079 | Krusty the Clown | £ 5,226,290 | |
| 12080 | Krypton | £ 5,501,562 | |
| 12081 | Kryptonite | £ 168,749,703 | |
| 12082 | Krzac | £ 253,455,173 | |
| 12083 | KS Tuning | £ 6,514,883 | |
| 12084 | KS Tyre Serv | £ -619,961 | |
| 12085 | KSHH | £ 54,425,742 | |
| 12086 | Kublai Kahn | £ 85,319,407 | |
| 12087 | Kuchi Kuchi | £ 41,587,687 | |
| 12088 | Kuduro | £ 2,236,296 | |
| 12089 | Kueh Chap | £ 13,647,415 | |
| 12090 | Kueh Lan Jiao | £ -4,992,862 | |
| 12091 | Kullback and Leibler | £ 780,686 | |
| 12092 | Kultek | £ 3,517,910 | |
| 12093 | Kululand | £ 27,805,826 | |
| 12094 | Kumba | £ 1,058,108,278 | |
| 12095 | Kumon Enterprises | £ 5,508,614 | |
| 12096 | Kung fu | £ 5,504,997 | |
| 12097 | Kung Pow | £ 87,964,566 | |
| 12098 | Kungfu Panda | £ 56,083,660 | |
| 12099 | Kuredu Island | £ 78,671,516 | |
| 12100 | kuryatnik | £ 52,450,623 | |
