- n3 Recruitment
- National Physical Laboratory
- National Temping Recruitment Ltd
- Navitas Resourcing
- NCLH Ltd
- Neaves & Neat Employment Services Ltd
- Net Talent
- Net-Recruit.Co.Uk Ltd
- Netbox Recruitment Ltd
- NetCab Solutions
- Netshell Ltd
- Networking People
- New Horizon Recruitment Ltd
- Newman Stewart Ltd
- Newton Colmore Consulting
- Next Generation Marketing
- Next Level Recruitment Ltd.
- NFP People
- Nicholas Associates
- Nicoll Curtin Technology Ltd
- Nigel Frank International Ltd
- No.1 Solicitors
- NOA Healthcare LTD
- Noir
- NonStop Consulting
- Norbert Dentressanlge
- North East Recruitment Ltd
- Northbridge Consultants
- Northern Case Management Limited
- Northfields Estates Ltd