| 3921 | Konjički centar | http://www.konjicki-centar.hr |
| 3922 | KOP Vrapče | http://www.kop-vrapce.com |
| 3923 | KOPACK d.o.o. | http://www.kopack.hr |
| 3924 | Koper d.o.o. | http://www.koper.hr |
| 3925 | Kopiraona M&M | http://www.kopiraonamm.hr |
| 3926 | Kopko studio d.o.o. | http://www.kopko.hr |
| 3927 | Kora simfonija d.o.o. | http://www.kora-simfonija.hr |
| 3928 | Korak Zdravlja | http://www.korak-zdravlja.com |
| 3929 | Koraks Trade d.o.o. | http://www.koraks.hr |
| 3930 | Koral d.o.o. | http://www.koral.hr |
| 3931 | Koralj, obrt | http://www.koralj.hr |
| 3932 | Korčula apartmani | http://www.korcula-apartmani.com |
| 3933 | Korčula Rent | http://www.korcula-rent.net |
| 3934 | Korčula Tours | http://www.korcula-tours.com |
| 3935 | Kordun | http://www.kordun.hr |
| 3936 | Kordun alati | http://www.kordun-alati.hr |
| 3937 | KornatTurist | http://www.kornatturist.hr |
| 3938 | Korona d.o.o. | http://www.korona.hr |
| 3939 | Korunić d.o.o. | http://www.korunic.hr |
| 3940 | Kos obrt | http://www.kos.htnet.hr |