- Centre for Social Justice
- Cerebra Recruitment Limited
- Cerebra Recruitment Ltd
- Ceredigion County Council
- Certes
- Certus Sales Recruitment
- CES
- CG Recruitment
- CG Resources
- Chalkface Recruitment Ltd
- Challenger Recruitment
- Chalmish Recruitment Services Ltd
- Chamberlain Rose
- Chandler Jones International
- Change Recruitment
