| EXON LIMITED | Private company limited by shares | Dissolved |
| EXON ARCHITECTS LIMITED | Private company limited by shares | Dissolved |
| EXON (ASIA) LIMITED | Private company limited by shares | Dissolved |
| EXON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Exon Trade Limited | Private company limited by shares | Live |
| EXONA AND COMPANY LIMITED | Private company limited by shares | Live |
| EXONBURY LIMITED | Private company limited by shares | Live |
| Exone Electronics (HK) Co., Limited | | Live |
| Exong Limited | | Live |
| EXON-IBT LIMITED | Private company limited by shares | Live |
| EXONIC LIMITED | Private company limited by shares | Live |
| EXONMARK SOLUTIONS LIMITED | Private company limited by shares | Live |