| Health Education England | Birmingham | Public Sector & Non-Profit | A rating | 0 | | | 31 Dec 2020 |
| JPMorgan Chase Bank, National Association | London | Financial Services | Temporary A ratingA rating | 0 | | | 30 Dec 2020 |
| Ernst & Young | London | Professional Services | Temporary A ratingA rating | 35 | | | 04 Aug 2013 |
| Amazon UK Services Ltd | London | Professional Services | Temporary A ratingA rating | 40 | | | 10 Dec 2015 |
| Deloitte LLP | London | Professional Services | A rating | 131 | | | 04 Aug 2013 |
| Guy's and St. Thomas' NHS Foundation Trust | London | Healthcare | A rating | 0 | | | 25 Oct 2019 |
| Manchester University NHS Foundation Trust | Manchester | Healthcare | A rating | 0 | | | 28 Sept 2017 |
| Cognizant Worldwide Limited | London | Technology & Software | A rating | 0 | | | 27 Sept 2016 |
| PricewaterhouseCoopers LLP | London | Professional Services | Temporary A ratingA rating | 0 | | | 04 Aug 2013 |
| KPMG LLP (Local Hires) | London | Professional Services | A rating | 0 | | | 13 Oct 2016 |
| Kings College Hospital NHS Foundation Trust | Camberwell | Education | A rating | 0 | | | 04 Aug 2013 |
| Royal Free London NHS Foundation Trust | London | Healthcare | A rating | 0 | | | 04 Aug 2013 |
| Nottingham University Hospitals NHS Trust | Nottingham | Healthcare | A rating | 0 | | | 04 Aug 2013 |
| University Hospitals Sussex NHS Foundation Trust | Chichester | Healthcare | A rating | 0 | | | 28 Jul 2021 |
| Oxford University Hospitals NHS Trust | Oxford | Healthcare | A rating | 19 | | | 04 Aug 2013 |
| University Hospitals of Leicester NHS Trust | Leicester | Healthcare | A rating | 0 | | | 04 Aug 2013 |
| Barts Health National Health Service Trust | London | Healthcare | A rating | 0 | | | 06 Sept 2022 |
| Facebook UK | London | Media, Marketing & Creative | A rating | 0 | | | 30 Dec 2020 |
| University Hospitals Birmingham NHS Foundation Trust | Edgbaston | Healthcare | A rating | 0 | | | 04 Aug 2013 |
| Accenture (UK) Limited | London | Professional Services | A rating | 55 | | | 04 Aug 2013 |
| Mid and South Essex NHS Foundation Trust | Southend On Sea | Healthcare | A rating | 0 | | | 18 Sept 2020 |
| Elysium Healthcare | Borehamwood | Healthcare | A rating | 45 | | | 23 Mar 2017 |
| Barchester Healthcare | Inverness | Healthcare | A rating | 239 | | | 27 Aug 2024 |
| Goldman Sachs International | London | Financial Services | Temporary A ratingA rating | 0 | | | 22 Jan 2025 |
| East Kent Hospitals University NHS Foundation Trust | Canterbury | Healthcare | A rating | 0 | | | 20 Dec 2017 |
| Imperial College Healthcare NHS Trust | London | Education | A rating | 0 | | | 04 Aug 2013 |
| NHS Education For Scotland | Edinburgh | Healthcare | A rating | 0 | | | 30 Dec 2020 |
| University Hospitals of Derby and Burton NHS Foundation Trust | Derby | Healthcare | A rating | 0 | | | 20 Sept 2018 |
| University of Oxford | Oxford | Education | Temporary A ratingA rating | 86 | | | 04 Aug 2013 |
| CareTech Holdings Limited | Uxbridge | Healthcare | A rating | 43 | | | 21 Jul 2025 |
| Barclays Execution Services Limited | London | Financial Services | Temporary A ratingA rating | 0 | | | 16 May 2019 |
| University Hospital Southampton NHS Foundation Trust | Southampton | Healthcare | A rating | 0 | | | 04 Aug 2013 |
| Cambridge University Hospitals NHS Foundation Trust | Cambridge | Healthcare | A rating | 0 | | | 04 Aug 2013 |
| Northern Care Alliance NHS Foundation Trust | Salford | Healthcare | A rating | 0 | | | 15 Dec 2021 |
| University College London Hospitals NHS Foundation Trust | London | Healthcare | A rating | 0 | | | 04 Aug 2013 |
| Cygnet Health Care Ltd | West Malling | Healthcare | A rating | 30 | | | 22 Aug 2025 |
| University Hospitals Bristol and Weston NHS Foundation Trust | Bristol | Healthcare | A rating | 0 | | | 03 Aug 2020 |
| Priory Group | London | Healthcare | A rating | 35 | | | 04 Aug 2013 |
| Bedfordshire Hospitals NHS Foundation Trust | Luton | Healthcare | A rating | 0 | | | 30 Jun 2020 |
| East Suffolk and North Essex NHS Foundation Trust | Colchester | Healthcare | A rating | 0 | | | 01 Nov 2018 |
| Bupa Care Services | Leeds | Healthcare | A rating | 0 | | | 04 Aug 2013 |
| United Lincolnshire Hospitals NHS Trust | Lincoln | Healthcare | A rating | 0 | | | 04 Aug 2013 |
| University College London | London | Education | Temporary A ratingA rating | 63 | | | 30 Dec 2020 |
| Portsmouth Hospitals University NHS Trust | Portsmouth | Education | A rating | 4 | | | 05 Oct 2020 |
| Chelsea & Westminster NHS Foundation Trust | London | Healthcare | A rating | 0 | | | 04 Aug 2013 |
| NES Holdings (UK) Limited | Norwich | Healthcare | A rating | 1 | | | 25 Jul 2019 |
| Liverpool University Hospitals NHS Foundation Trust | Liverpool | Healthcare | A rating | 0 | | | 19 May 2020 |
| Morgan Stanley UK Limited | London | Financial Services | A rating | 16 | | | 04 Aug 2013 |
| Cranswick PLC | Hessle | Manufacturing & Industrial | A rating | 47 | | | 28 Oct 2021 |
| The Newcastle upon Tyne Hospitals NHS Foundation Trust | Newcastle | Healthcare | A rating | 0 | | | 04 Aug 2013 |