| 3781 | KKL | http://www.kkl.hr |
| 3782 | Kladionice - Žderić d.o.o. | http://www.kladionice-zderic.hr |
| 3783 | Klanoj d.o.o. | http://www.klanoj.com |
| 3784 | Klapa Fortica | http://www.klapafortica.com |
| 3785 | Klapa Jelsa | http://www.klapa-jelsa.hr |
| 3786 | Klara d.d. | http://www.klara.hr |
| 3787 | KLA-ROM d.o.o. | http://www.klarom.hr |
| 3788 | Klas d.o.o. | http://www.klas.hr |
| 3789 | Klasik, obrt | http://www.antikvarijat-klasik.hr |
| 3790 | Klemenčić d.o.o. | http://www.maxman.hr |
| 3791 | Klenovik | http://www.bolnica-klenovnik.hr |
| 3792 | Klesarija Štokom | http://www.klesarija-stokom.hr |
| 3793 | Klesarski obrt Kebo | http://www.kebo.hr |
| 3794 | Klesarstvo Forma | http://www.forma-mramor-granit.hr |
| 3795 | Kless d.o.o. | http://www.kless.hr |
| 3796 | Kless, obrt | http://www.knjigovodstvo-kless.hr |
| 3797 | Klima Zirdum d.o.o. | http://www.klima-zirdum.tk |
| 3798 | Klimamobil d.o.o. | http://www.klimamobil.hr |
| 3799 | Klimavent, obrt | http://www.klimavent.hr |
| 3800 | KLIMAX d.o.o. | http://www.infobip.com |