The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12501 | KnowIedge | £ 221,481,152 | |
| 12502 | Knowledge | £ 108,163,745 | |
| 12503 | Knowledge Is Experience | £ 99,121,230 | |
| 12504 | Knowme | £ 5,067,029 | |
| 12505 | Knuck If You Buck | £ 178,953,824 | |
| 12506 | Knuckels | £ 26,841,839 | |
| 12507 | Knuckles Parlor | £ 23,084 | |
| 12508 | KnyteNet | £ 58,872,618 | |
| 12509 | Kobalos | £ 151,135,988 | |
| 12510 | Kobe Cattle | £ 381,711,828 | |
| 12511 | Kobol | £ 104,355,490 | |
| 12512 | Koca Popovic | £ 140,427,377 | |
| 12513 | Koenigsegg CCXR Trevita | £ 91,581,683 | |
| 12514 | kogarasumaru | £ 597,595 | |
| 12515 | Koh and Oei LLC | £ 100,130,740 | |
| 12516 | Kohark | £ 2,311,482 | |
| 12517 | Kohden Co | £ 224,217,984 | |
| 12518 | Kojima Productions | £ 82,248,983 | |
| 12519 | Kokiri Forest Ltd. | £ 48,267,078 | |
| 12520 | KOKO CHOO | £ 4,172,979 | |
| 12521 | kokoko | £ 50,000 | |
| 12522 | Kola | £ 64,998,839 | |
| 12523 | KOLenterprise | £ 1,753,282 | |
| 12524 | Kolgomov | £ 45,432,197 | |
| 12525 | Kolkata Knight Riders | £ 123,984,795 | |
| 12526 | KollofSkis | £ 78,166,268 | |
| 12527 | Kolo Mee | £ 34,755,663 | |
| 12528 | Kombat | £ 103,428,734 | |
| 12529 | Komodo | £ 187,869,778 | |
| 12530 | Komodo Dragon | £ 120,420,530 | |
| 12531 | Komohomo | £ 826,658,691 | |
| 12532 | Kong | £ 5,283,249 | |
| 12533 | KongBall | £ 565,529 | |
| 12534 | Kongo Gumi | £ 10,096,353 | |
| 12535 | KongZilla | £ 14,838,988,830 | |
| 12536 | Konman | £ 4,644,441 | |
| 12537 | Konoha | £ 5,505,394 | |
| 12538 | KooDa | £ 1,660,567,693 | |
| 12539 | Kools | £ 5,083,488 | |
| 12540 | Koooll Katz | £ 204,839,090 | |
| 12541 | Koral Industries | £ 901,411 | |
| 12542 | Korczyk Industries | £ 148,275 | |
| 12543 | Korea | £ 105,036,580 | |
| 12544 | Korean Drama | £ 114,805,049 | |
| 12545 | Koridai | £ 3,674,298 | |
| 12546 | KoRn | £ 114,260,513 | |
| 12547 | Kors | £ 41,000,427 | |
| 12548 | Kota Inc | £ 3,074,772 | |
| 12549 | KOTECHA FAMILY REALTY CO | £ 2,623,066 | |
| 12550 | Kotto Corp | £ 49,972 | |
| 12551 | Kotto Corp 2 | £ -817,713 | |
| 12552 | KOUCH ENT. | £ 1,818 | |
| 12553 | Koungs Wantan Mee | £ 168,862,069 | |
| 12554 | Kowloon | £ 252,532,037 | |
| 12555 | Koza | £ 91,589,377 | |
| 12556 | Kozaki Idut | £ 16,444,330 | |
| 12557 | Kozi | £ 282,049 | |
| 12558 | KP Holdings Corp | £ 101,975,884 | |
| 12559 | KPcorp | £ 592,338,447 | |
| 12560 | KPInc | £ -2,654,507 | |
| 12561 | KPOW | £ 5,963,984 | |
| 12562 | KPP Inc | £ 3,538,705 | |
| 12563 | Kraft | £ 6,936,427 | |
| 12564 | Krakatoa | £ 109,434,773 | |
| 12565 | Kraken Wakes | £ 149,467,603 | |
| 12566 | Kramer | £ 19,726,502 | |
| 12567 | Kramerica | £ 5,841,932 | |
| 12568 | Krash | £ 7,576,449 | |
| 12569 | KraZe Inc. | £ 2,769,200 | |
| 12570 | Kremmen Inc | £ 2,450,721 | |
| 12571 | Kriminal | £ 13,588,142 | |
| 12572 | KRIS | £ 2,802,010 | |
| 12573 | KrisCorp | £ 10,197,833 | |
| 12574 | Krist | £ 5,874,508 | |
| 12575 | Kristinsson | £ 5,501,849 | |
| 12576 | Kroll | £ 96,657,317 | |
| 12577 | Krondor | £ 1,195,958 | |
| 12578 | Kronenbourg | £ 109,596,002 | |
| 12579 | Kronenburgpark | £ 3,090,886 | |
| 12580 | Kroning | £ 19,442,525 | |
| 12581 | Krose | £ 50,000 | |
| 12582 | Kruger | £ 297,948 | |
| 12583 | Krull | £ 5,582,690 | |
| 12584 | Krusty the Clown | £ 5,226,290 | |
| 12585 | Krypton | £ 5,501,562 | |
| 12586 | Kryptonite | £ 168,749,703 | |
| 12587 | Krzac | £ 253,455,173 | |
| 12588 | KS Tuning | £ 6,514,883 | |
| 12589 | KS Tyre Serv | £ -619,961 | |
| 12590 | KSHH | £ 54,425,742 | |
| 12591 | Kublai Kahn | £ 85,319,407 | |
| 12592 | Kuchi Kuchi | £ 14,036,069 | |
| 12593 | Kuduro | £ 5,509,761 | |
| 12594 | Kueh Chap | £ 13,647,415 | |
| 12595 | Kueh Lan Jiao | £ -4,992,862 | |
| 12596 | Kullback and Leibler | £ 780,686 | |
| 12597 | Kultek | £ 3,517,910 | |
| 12598 | Kululand | £ 27,805,826 | |
| 12599 | Kumba | £ 1,058,108,278 | |
| 12600 | Kumon Enterprises | £ 5,508,614 | |
