Plastics & Rubber Company Index - O
- O Rings Ltd - Chichester
- O T R Tyres Ltd. - Alfreton
- Oadby Plastics Ltd - Warrington
- Oaklands Plastics Ltd - Coleshill
- OEM Lubricants Ltd - Otley
- OF Bell Injection Moulding - Consett
- Ogle Models & Prototypes Ltd. - Letchworth
- OKW Enclosures Ltd - Fareham
- Oldbury Plastics Ltd TA AV Plastics - Tonbridge
- Omega Plastics - Blyth
- Omnikote Ltd - Aylesbury
- Oms (Uk) Ltd. - Stockport
- One Stop Plastics - Melton Mowbray
- Opella Ltd. - Hereford
- Optical Coating Technologies Ltd - Tamworth
- Opticron - Gillingham
- Osmor Products Ltd - Hassocks
- Osprey Ltd - Church Stretton
- Osprey Ltd. - Scarborough
- Oversolve Ltd. - Nottingham
- Owen Greenings and Mumford Ltd - Witney
- Owen Mumford Ltd - Oxford
- Owen Mumford Ltd. - Chipping Norton
- Oxford Plastics Systems Ltd - Chipping Norton
- Oxplas Ltd - Princes Risborough