| Asia-Pacific Satellite Communications Council | Gyeonggi |
| Asiance | Seoul |
| AsiaTechDaily | Seoul |
| Asnet Co., Ltd | Seoul |
| Aston Sci., Inc. | Seoul |
| ATIK Co., Ltd | Gyeonggi |
| Atinum Investment Co., Ltd | Seoul |
| Aton, Inc. | |
| Attoplex | |
| Auros Technology, Inc. | Gyeonggi |
| Autobase, Inc. | Gyeonggi |
| Autocrypt Co., Ltd | Seoul |
| Autodesk Korea | Seoul |
| Autonomous A2Z Corporation | |
| Autopus | Seoul |
| AutoSet Developer Group | Seoul |
| Autotac Bio, Inc. | Seoul |
| AVANsoft Co., Ltd | Seoul |
| AVEapp, Inc. | |
| Awesome Ventures Co., Ltd | Seoul |
| Awesomepia | |
| AX Cloud | Seoul |
| Baekseok Culture University | |
| Baekseok University | South Chungcheong |
| Baewha Women's University | |
| Bagelcode, Inc. | |
| Baikal.AI, Inc. | Seoul |
| BananaCulture Gaming & Media | Seoul |
| Bandisoft International, Inc. | |
| Barunson Entertainment & Arts Corporation | Seoul |
| BAUM | Gyeonggi |
| BD Convergence | Seoul |
| Be Interactive Co., Ltd | Seoul |
| Become Solution Co., Ltd | Seoul |
| Beeble AI, Inc. | |
| bemyfriends | Seoul |
| Benchbee Ltd | Seoul |
| BERTIS, Inc. | Gyeonggi |
| Bespin Global | Seoul |
| Bestpartners Co., Ltd | Seoul |
| beSUCCESS | Seoul |
| Better Code Co., Ltd | Seoul |
| BIFIDO Co., Ltd | Seoul |
| Bigbang Angels, Inc. | Seoul |
| BigxData, Inc. | |
| Bilix Co., Ltd | |
| Bio-Synectics, Inc. | Seoul |
| Bioinformatics Information | Seoul |
| BioLeaders Co., Ltd | Gyeonggi |
| Biondi Co., Ltd | Gyeonggi |