The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10501 | Knock me down booze | £ 126,762,299 | |
| 10502 | Knock You Out | £ 181,374,056 | |
| 10503 | Knocker.SLickerTOpaZ.LUX | £ 741,082 | |
| 10504 | Knockers | £ 277,273,265 | |
| 10505 | KnowIedge | £ 221,481,152 | |
| 10506 | Knowledge Is Experience | £ 99,121,230 | |
| 10507 | Knowme | £ 50,000 | |
| 10508 | Knuck If You Buck | £ 73,740,752 | |
| 10509 | Knuckels | £ 26,841,839 | |
| 10510 | Knuckles Parlor | £ 23,084 | |
| 10511 | KnyteNet | £ 58,872,618 | |
| 10512 | Kobalos | £ 151,135,988 | |
| 10513 | Kobe Cattle | £ 393,321,083 | |
| 10514 | Kobol | £ 104,355,490 | |
| 10515 | Koca Popovic | £ 140,427,377 | |
| 10516 | Koenigsegg CCXR Trevita | £ 91,581,683 | |
| 10517 | kogarasumaru | £ 597,595 | |
| 10518 | Koh and Oei LLC | £ 100,130,740 | |
| 10519 | Kohark | £ 2,311,482 | |
| 10520 | Kojima Productions | £ 82,248,983 | |
| 10521 | KOKO CHOO | £ 4,172,979 | |
| 10522 | kokoko | £ 50,000 | |
| 10523 | Kolgomov | £ 45,884,639 | |
| 10524 | KollofSkis | £ 78,166,268 | |
| 10525 | kolo | £ 4,674,934 | |
| 10526 | Kolo Mee | £ 34,755,663 | |
| 10527 | Komodo | £ 187,869,778 | |
| 10528 | Komohomo | £ 169,933,574 | |
| 10529 | kompany | £ 1,174,673 | |
| 10530 | Kong | £ 5,283,249 | |
| 10531 | KongBall | £ 565,529 | |
| 10532 | Kongo | £ 42,243,702 | |
| 10533 | KongZilla | £ 10,046,975,526 | |
| 10534 | Konj | £ 37,112 | |
| 10535 | Konoha | £ 5,505,394 | |
| 10536 | KooDa | £ 885,927,426 | |
| 10537 | Kools | £ 5,083,488 | |
| 10538 | Koooll Katz | £ 204,839,090 | |
| 10539 | Koral Industries | £ 901,411 | |
| 10540 | Korczyk Industries | £ 148,275 | |
| 10541 | Korea | £ 105,036,580 | |
| 10542 | Korean Drama | £ 114,805,049 | |
| 10543 | KoRn | £ 114,260,513 | |
| 10544 | Kors | £ 41,000,427 | |
| 10545 | Kota Inc | £ 3,074,772 | |
| 10546 | KOTECHA FAMILY REALTY CO | £ 2,623,066 | |
| 10547 | Kotto Corp | £ 49,972 | |
| 10548 | Kotto Corp 2 | £ -817,713 | |
| 10549 | KOUCH ENT. | £ 1,818 | |
| 10550 | Koza | £ 83,517,578 | |
| 10551 | Kozi | £ 282,049 | |
| 10552 | KP Holdings Corp | £ 101,975,884 | |
| 10553 | KPcorp | £ 561,270,630 | |
| 10554 | KPInc | £ -2,654,507 | |
| 10555 | KPOW | £ 5,963,984 | |
| 10556 | KPP Inc | £ 3,538,705 | |
| 10557 | Kracken | £ 143,253,229 | |
| 10558 | Kraft | £ 6,936,427 | |
| 10559 | Kraken Wakes | £ 150,389,177 | |
| 10560 | Kramer | £ 19,726,502 | |
| 10561 | Kramerica | £ 5,841,932 | |
| 10562 | Kramerica Inc. | £ 82,309,508 | |
| 10563 | KraZe Inc. | £ 2,769,200 | |
| 10564 | Kremmen Inc | £ 2,450,721 | |
| 10565 | KRIS | £ 2,802,010 | |
| 10566 | KrisCorp | £ 10,197,833 | |
| 10567 | Krist | £ 5,874,508 | |
| 10568 | Kristinsson | £ 5,501,849 | |
| 10569 | Kroll | £ 96,657,317 | |
| 10570 | Krondor | £ 1,195,958 | |
| 10571 | Kronenbourg | £ 52,249,419 | |
| 10572 | Kronenburgpark | £ 3,090,886 | |
| 10573 | Kroning | £ 19,442,525 | |
| 10574 | Krose | £ 50,000 | |
| 10575 | Kruger | £ 297,948 | |
| 10576 | Krull | £ 5,582,690 | |
| 10577 | Krusty the Clown | £ 5,226,290 | |
| 10578 | Krypton | £ 5,501,562 | |
| 10579 | Kryptonite | £ 168,749,703 | |
| 10580 | Krzac | £ 253,455,173 | |
| 10581 | KS Tuning | £ 6,514,883 | |
| 10582 | KS Tyre Serv | £ -619,961 | |
| 10583 | KSHH | £ 54,425,742 | |
| 10584 | Ksyops | £ 3,875,870 | |
| 10585 | ktest2 | £ 4,480,963 | |
| 10586 | ktest3 | £ 11,950,652 | |
| 10587 | ktest4 | £ 1,398,453 | |
| 10588 | ktest5 | £ 741,685 | |
| 10589 | ktest6 | £ 5,363,265 | |
| 10590 | ktest7 | £ 50,000 | |
| 10591 | ktest8 | £ 170,000 | |
| 10592 | Ktulu | £ 256,583,552 | |
| 10593 | Kueh Chap | £ 13,647,415 | |
| 10594 | Kueh Lan Jiao | £ -4,992,862 | |
| 10595 | Kullback and Leibler | £ 780,686 | |
| 10596 | Kululand | £ 27,805,826 | |
| 10597 | Kumba | £ 1,058,108,278 | |
| 10598 | Kumon Enterprises | £ 5,508,614 | |
| 10599 | Kung Fu Co. | £ 50,000 | |
| 10600 | Kung Fu Mahjong | £ 571,590,831 | |
