| 621 | Arka, agencija | http://www.arka.hr |
| 622 | Arkzin d.o.o. | http://www.arkzin.com |
| 623 | Armanini d.o.o. | http://www.armanini.hr |
| 624 | Armatura Servis d.o.o. | http://www.armatura-servis.hr |
| 625 | Armatura Srnić | http://www.armatura.hr/ |
| 626 | Ar-Metal d.o.o. | http://www.ar-metal.hr |
| 627 | Armont84 d.o.o. | http://www.armont84.com |
| 628 | Armstrong Global Ltd | http://ArmstronGlobal.com |
| 629 | Arnika d.o.o. | http://www.arnika.hr |
| 630 | Aroma mora | http://www.aroma-mora.hr |
| 631 | Aromar d.o.o. | http://www.aromar.hr |
| 632 | ARP d.o.o. | http://www.arp.hr |
| 633 | ARPUGO d.o.o. | http://www.arpugo.hr |
| 634 | Arsen Dedić | http://www.arsen.hr |
| 635 | Arsenal Zadar | http://www.arsenalzadar.com |
| 636 | Art Briški d.o.o. | www.okviri.hr |
| 637 | Art color - uslužni obrt | http://www.artcolo.com |
| 638 | Art d.o.o. Rijeka | http://www.art-rijeka.hr |
| 639 | Art eXile | http://www.artexile.com |
| 640 | Art interijeri Kuhinje 2000 d.o.o. | http://www.artinterijeri.hr |