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- Daesung Industrial Gas Co., Ltd
- Korea Cambridge Filters Co., Ltd
- Daesung C&S
- Industrial Gas Division
- Construction industry sector
- S-pil Co., Ltd
- D-CUBE city
- D-cube Geoje department store
- F&F division
- Daesung Art center Ltd.
- Petroleum Gas Division
- CO-GEN division
- International resource
development division - Daesung E&E
- Daesung Hydronix
- Mechanical division
- Computer division
- International division
- Energy systems division
- Daesung Celtic Co., Ltd
- Daesung Enersys Co., Ltd
- Daesung Heat pump Co., Ltd
- Daesung Measuring Co., Ltd
- Daesung NACHI Hydraulics Co., Ltd
- Daesung Industrial Information Systems Division INC.
- Daesung cyrogenic research institute
- Daesung Co., Ltd Research lab
- Daesung Celtic Research lab
- Daesung Heat pump Research lab
- Daesung C&S Co., Ltd Research lab
