| Certification / Accreditation / Membership | Assessment Body | CSG divisions / brands covered |
| Investors in People Gold | Investors in People | All |
| ISO 9001 (UKAS Accredited) | British Assessment Bureau | All excl. Laser and Lumina |
| ISO 9001 | British Assessment Bureau | Laser and Lumina |
| ISO 14001 (UKAS Accredited) | British Assessment Bureau | All excl. Laser and Lumina |
| ISO 14001 | British Assessment Bureau | Laser and Lumina |
| ISO 27001 (UKAS Accredited) | British Assessment Bureau | Cantium Business Solutions |
| Cyber Essentials Plus | IASME | Cantium Business Solutions |
| Cyber Essentials | IASME | All excl. The Education People & Invicta Law |
| CHAS | Contractors Health & Safety Scheme | Community Services |
| GMA | Grounds Management Association | Community Services |
| Payroll Assurance Scheme | Chartered Institute of Payroll Professionals | HR Connect |
| REC Audited Gold standard | Recruitment and Employment Confederation | Commercial Services Kent Ltd. Commercial Services Trading Ltd. |
| OutSource | APSCo | Connect2Hampshire |
| Lexcel Legal Practice Quality Mark | Centre for Assessment | Invicta Law |
If you have any questions regarding our certifications, accreditations or memberships please contact info@csltd.org.uk for more information.