| BNK Kyongnam Bank | Seoul |
| 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 Co., Ltd | |
| Brexogen | Seoul |
| Brickmate, Inc. | |
| Bridge Biotherapeutics, Inc. | Gyeonggi |
| BrilliantTS | Gyeonggi |
| BTWorks | Daejeon |
| Bujeon | Gyeonggi |
| Bukwang Pharm Co., Ltd | |
| Bulb Communications | Seoul |
| Busan Economic Promotion Agency | Busan |
| Busan Institute of Science and Technology | |
| Busan Kyungsang College | |
| Busan Technopark | Busan |
| Busan Women's College | |
| BUSANBANK | Busan |
| Buzzvil Co., Ltd | |
| BZeye | Seoul |
| C.O.D.E. | Seoul |
| Cablecon | Seoul |
| Cabsoft | Seoul |
| Cafe24 Corporation | Seoul |
| Cakeplabs Co., Ltd | Seoul |
| Caliverse | Seoul |
| Callgate Co., Ltd | Seoul |
| CamacKorea Co., Ltd | Gyeonggi |
| CanariaBio, Inc. | |
| CanTops Co., Ltd | Gyeonggi |
| Capstone Partners Co., Ltd | Seoul |
| Care Square Co., Ltd | Seoul |
| Caregen Co., Ltd | |
| Caret Games, Inc. | |
| Catenoid, Inc. | |
| Catholic Kwandong University | |
| CDNetworks | Seoul |
| Celemics, Inc. | Seoul |
| Cell2in, Inc. | |
| Cellatoz Therapeutics, Inc. | Gyeonggi |
| Celldi Co., Ltd | |
| CELLID | |
| Cellivery | Seoul |
| Celltrion, Inc. | |
| CGlink | Seoul |