| Aperte Media d.o.o. | |
| Aplikacija d.o.o. | City of Zagreb |
| Appenture d.o.o. | Varaždin |
| Applicon d.o.o. | Zagreb |
| APR d.o.o. | |
| Apsolon d.o.o. | Zagreb |
| Aqua Design | |
| Arcus Ingenium d.o.o. | Dubrovnik-Neretva |
| Are You Digital | |
| Arhiteh computers | City of Zagreb |
| Aries d.o.o. | City of Zagreb |
| ARS design | Istria |
| Ars Futura | |
| Ars Pantheon | |
| Artis Rei d.o.o. | |
| Artkod | |
| ASBIS Hrvatska | City of Zagreb |
| ASG d.o.o. | City of Zagreb |
| Aspekt | |
| Aspira University of Applied Sciences | |
| Assmann elektronika d.o.o. | City of Zagreb |
| Astrum d.o.o. | Varaždin |
| Async Labs | |
| Atekatu d.o.o. | |
| Aura Soft d.o.o. | Istria |
| AVAC d.o.o. | |
| Avoco d.o.o. | |
| AVR d.o.o. | City of Zagreb |
| Axiom d.o.o. | Međimurje |
| Azikus | |
| B.I.D. Grupa d.o.o. | |
| b4b d.o.o. | City of Zagreb |
| Baldinistudio d.o.o. | |
| Bamboo Lab | Osijek-Baranja |
| Barek d.o.o. | City of Zagreb |
| BARREK Group | |
| BB Agency | |
| BBM d.o.o. | City of Zagreb |
| BCI - Business Center International | |
| Beap | |
| Bel-Tel d.o.o. | Osijek-Baranja |
| Belle Futura | |
| Bendin d.o.o. | City of Zagreb |
| Beta Tau Beta d.o.o. | City of Zagreb |
| Beyondi d.o.o. | |
| Big Idea Lab d.o.o. | City of Zagreb |
| Binom | |
| Bioinformatics Group | City of Zagreb |
| Biomax d.o.o. | |
| Bit – Art Informatika d.o.o. | |