| PHOENIX ENGINEERING COMPANY LIMITED | Machinery and equipment | 1905 | Total exemption (full) |
| CERDIC FOUNDRIES LIMITED | Basic metals | 1970 | Small company accounts |
| C. & E. PLANT SALES (CHARD) LIMITED | Other manufacturing | 1978 | Total exemption (full) |
| TECHRAIL RETAIL SERVICES LIMITED | Fabricated metal products | 1991 | Total exemption (full) |
| KNIGHT ELECTRICAL LIMITED | Repair and installation of machinery | 1999 | Total exemption (full) |
| KD DESIGN & FABRICATION LIMITED | Fabricated metal products | 2002 | Total exemption (full) |
| CLIVE GOULD LIMITED | Repair and installation of machinery | 2002 | Total exemption (full) |
| HANTS SERVICES LIMITED | Repair and installation of machinery | 2004 | Total exemption (full) |