| 1301 | CGI Poreč | http://www.cgiporec.hr |
| 1302 | Champion gym | http://www.champion-gym.com |
| 1303 | Charantea | http://www.charantea.hr |
| 1304 | Charter Agent | http://www.croatia-charter-agent.com |
| 1305 | Charter Argonaut | http://www.charter-argonaut.com |
| 1306 | Charter Banjol | http://www.banjol-arba.com |
| 1307 | Charter Bruna | http://www.charter-bruna.com |
| 1308 | Chemaco | http://www.hobbyart-chemaco.hr |
| 1309 | Chemo Mix d.o.o. | http://www.chemomix.hr |
| 1310 | Chipoteka | http://www.chipoteka.hr |
| 1311 | Chromos | http://www.chromos-bil.hr |
| 1312 | Chromos - Svjetlost d.d. | http://www.svjetlost.com |
| 1313 | Chromos agro d.d. | http://www.chromos-agro.hr |
| 1314 | CHROMOS, Samobor | http://www.chromos.hr |
| 1315 | Chrono d.o.o. | http://www.chrono.hr |
| 1316 | CHRONOS Info d.o.o. | http://www.chronos.hr |
| 1317 | Cian d.o.o. | http://www.cian.hr |
| 1318 | Ciceron, obrt | http://www.ciceron.hr |
| 1319 | Ciciban obuća | http://www.ciciban.je.to |
| 1320 | CID-NOVA d.o.o. | http://www.cid-nova.hr |