| Manufacturer | Sector | Year | Accounts type |
|---|---|---|---|
| HOLYHEAD MARINE SERVICES LIMITED | Ships, aircraft, rail and other transport | 1967 | Full accounts |
| MONA PRECAST (ANGLESEY) LIMITED | Other manufacturing | 1968 | Total exemption (full) |
| COMPLETE MINIATURE RAILWAYS LIMITED | Ships, aircraft, rail and other transport | 2002 | Total exemption (full) |
| SHEAR EASE LTD | Repair and installation of machinery | 2003 | Total exemption (full) |
| MINKIE LIMITED | Clothing | 2004 | Total exemption (full) |
| EZYHERB LTD | Food products | 2010 | Total exemption (full) |