| 4341 | Mantis d.o.o. | http://www.mantis.hr |
| 4342 | Manuela Šapro | http://www.manuelasapro.hr |
| 4343 | Manzin Montaža d.o.o. | http://www.manzin-montaza.hr |
| 4344 | MAP Savjetovanja d.o.o. | http://www.map.hr |
| 4345 | Mapro d.o.o. | http://www.mapro.hr |
| 4346 | MAR MARCELA d.o.o. | http://www.mar-marcela.hr |
| 4347 | Mara Bratoš | http://www.mara-bratos.hr |
| 4348 | Maran d.o.o. | http://www.maran.hr |
| 4349 | Marana d.o.o. | http://www.marana.hr |
| 4350 | Maraton, obrt | http://www.maratonsportshop.hr |
| 4351 | Marco Polo charter | http://www.kaluma.hr/ |
| 4352 | MaRCo-Zagreb d.o.o. | http://www.marco.hr |
| 4353 | Mare Adriatica | http://www.mare-adriatica.com |
| 4354 | Mare Tours | http://www.maretours.hr |
| 4355 | Marea d.o.o. | http://www.marea.hr |
| 4356 | Marecharter d.o.o. | http://www.marecharter.hr |
| 4357 | Marelo, obrt | http://www.marelo.hr |
| 4358 | Maremonti Istra d.o.o. | http://www.maremonti-istra.hr |
| 4359 | Mareta-prom d.o.o. | http://www.mareta-prom.hr |
| 4360 | Marex-gel d.o.o. | http://www.marex-gel.hr |