| Bioneer Corporation | Daejeon |
| Bionoxx, Inc. | Gyeonggi |
| Biorchestra Co., Ltd | Daejeon |
| Biotoxtech Co., Ltd | North Chungcheong |
| BISTelligence, Inc. | |
| Bitel Co., Ltd | Seoul |
| bitHolla | Seoul |
| Bitnine Co., Ltd | |
| Bixink Therapeutics | |
| BlissVine Ventures | |
| BLOCKO, Inc. | Gyeonggi |
| Bluepoint | |
| Blueside, Inc. | Seoul |
| BlueSignal, Inc. | Daejeon |
| Blueweb | Seoul |
| Blux | |
| BMI Korea Co., Ltd | Gyeonggi |
| BMSmile Co., Ltd | |
| BNA Co., Ltd | Seoul |
| BNF Technology, Inc. | Daejeon |
| BNK Venture Capital Co., Ltd | |
| Boditech Med Co., Ltd | Gangwon |
| Bolim Imformation System | Gyeonggi |
| BOMSoftware Co., Ltd | Seoul |
| Bonacamp Ltd | Seoul |
| BonAngels Venture Partners, Inc. | Seoul |
| Boostcourse | Gyeonggi |
| Born2Global | Seoul |
| BOS Semiconductors | |
| BOS Semiconductors Co., Ltd | |
| Brexogen | Seoul |
| BrickMate | |
| Brickmate, Inc. | |
| Bridge Biotherapeutics | |
| BrilliantTS | Gyeonggi |
| Brite Energy Partners | |
| BTWorks | Daejeon |
| Bucheon University | |
| Bujeon | Gyeonggi |
| Bukwang Pharm Co., Ltd | |
| Bulb Communications | Seoul |
| Busan Catholic University | |
| Busan Economic Promotion Agency | Busan |
| Busan Institute of Science and Technology | |
| Busan Kyungsang College | |
| Busan National University of Education | |
| Busan Presbyterian University | |
| Busan Technopark | Busan |
| Busan University of Foreign Studies | |
| Busan Women's College | |