- Ceredigion County Council
- Channel Advantage
- Charles Fellowes Resourcing
- Chase Anderson Limited
- Chase Medical
- Chase Moulande
- Choices Recruitment
- Choicetec Recruitment Ltd
- Chris Eastwood Automotive Ltd
- ChromeBase Consulting Ltd
- church of st johns
- Ci Business Services Ltd
- CitiPeople.com
- Claritas Consultants
- Class 1 Personnel