| UK Health Security Agency | Other | 5 | £11m | 20.1% | 2024-05-01 |
| East Of England NHS Collaborative Hub | Other | 6 | £9m | 16.3% | 2021-03-29 |
| BBC (British Broadcasting Corporation) | Other | 2 | £7m | 13.3% | 2023-09-14 |
| YPO | Other | 1 | £7m | 12.7% | 2017-05-15 |
| NEUPC Ltd | Other | 3 | £4m | 6.9% | 2019-09-02 |
| Crown Prosecution ServiceNew | Other | 1 | £3m | 6.3% | 2026-02-09 |
| Public Health England | Other | 6 | £2m | 4.6% | 2020-01-22 |
| Lewisham and Greenwich NHS Trust | Other | 2 | £1m | 2.7% | 2021-04-30 |
| Hampshire ConstabularyNew | Other | 1 | £1m | 2.3% | 2025-04-30 |
| KCH KFM | Other | 1 | £1m | 2.0% | 2023-02-13 |
| Oxford University Hospitals NHS Trust | Other | 1 | £969k | 1.8% | 2022-05-05 |
| Home Office | Other | 1 | £750k | 1.4% | 2021-05-27 |
| South West Police Procurement Service | Other | 1 | £743k | 1.4% | 2024-01-17 |
| Crown Commercial Service | Other | 1 | £525k | 1.0% | 2023-12-22 |
| Office for National StatisticsNew | Other | 1 | £460k | 0.9% | 2025-06-26 |
| Frimley Health NHS Foundation Trust | Other | 1 | £397k | 0.8% | 2021-07-20 |
| The Insolvency Service | Other | 2 | £332k | 0.6% | 2025-08-18 |
| UNIVERSITY OF SOUTHAMPTON | Other | 2 | £324k | 0.6% | 2025-01-20 |
| The Pensions RegulatorNew | Other | 1 | £300k | 0.6% | 2026-01-07 |
| Sanctuary Housing Assocication | Other | 1 | £280k | 0.5% | 2019-06-05 |
| Department for Education | Other | 3 | £216k | 0.4% | 2026-02-09 |
| Norfolk and Norwich University Hospitals NHS Foundation TrustNew | Other | 2 | £180k | 0.3% | 2025-05-30 |
| NHS SOUTH, CENTRAL AND WEST COMMISSIONING SUPPORT UNIT | Other | 1 | £137k | 0.3% | 2024-03-26 |
| MONEY AND PENSIONS SERVICENew | Other | 1 | £125k | 0.2% | 2025-10-01 |
| CALDERDALE AND HUDDERSFIELD SOLUTIONS LTD | Other | 1 | £120k | 0.2% | 2023-09-12 |
| British Business Bank | Other | 2 | £117k | 0.2% | 2023-05-15 |
| Department of Health & Social Care | Other | 1 | £100k | 0.2% | 2023-12-22 |
| Nursing And Midwifery Council | Other | 1 | £90k | 0.2% | 2023-10-16 |
| Kent Community Health NHS Foundation Trust | Other | 1 | £70k | 0.1% | 2021-05-31 |
| City of London Corporation | Other | 1 | £56k | 0.1% | 2021-01-13 |
| Gloucestershire Hospitals NHS Foundation TrustNew | Other | 1 | £50k | 0.1% | 2025-12-12 |
| Competition and Markets Authority | Other | 1 | £49k | 0.1% | 2021-01-10 |
| London Borough of Hammersmith & FulhamNew | Other | 1 | £48k | 0.1% | 2025-03-11 |
| General Pharmaceutical Council | Other | 1 | £48k | 0.1% | 2021-04-06 |
| Post Office Limited | Other | 1 | £43k | 0.1% | 2024-02-09 |
| NS&INew | Other | 1 | £40k | 0.1% | 2026-02-10 |
| Financial Ombudsman Service | Other | 1 | £40k | 0.1% | 2022-01-20 |
| NOTTINGHAM UNIVERSITY HOSPITALS NHS TRUSTNew | Other | 1 | £34k | 0.1% | 2024-10-08 |
| SERIOUS FRAUD OFFICE | Other | 1 | £31k | 0.1% | 2023-02-28 |
| WIRRAL UNIVERSITY TEACHING HOSPITAL NHS FOUNDATION TRUSTNew | Other | 1 | £31k | 0.1% | 2025-07-14 |
| Kent County CouncilNew | Other | 1 | £30k | 0.1% | 2024-12-20 |
| COLLEGE OF POLICING LIMITED | Other | 1 | £30k | 0.1% | 2024-04-02 |
| NATIONAL WEALTH FUND LIMITEDNew | Other | 1 | £25k | 0.0% | 2026-01-04 |
| THE UNIVERSITY OF BIRMINGHAMNew | Other | 1 | £12k | 0.0% | 2024-08-13 |
| Parliamentary and Health Service OmbudsmanNew | Other | 1 | £12k | 0.0% | 2025-03-25 |
| Leeds City Council | Other | 1 | £10k | 0.0% | 2018-07-10 |
| London Borough of Lewisham | Other | 1 | £0k | 0.0% | 2022-05-23 |
| DEFRA | Other | 1 | £0k | 0.0% | 2017-10-12 |
| Western Power Distribution | Other | 1 | £0k | 0.0% | |
| NS&I | Other | 1 | £0k | 0.0% | |
| NHS London Procurement Partnership (Hosted by Guy's and St Thomas' NHS FT) | Other | 1 | £0k | 0.0% | |
| CENTRE FOR PROCESS INNOVATION LIMITED | Other | 2 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 1 | £0k | 0.0% | |
| London Borough of Ealing | Other | 1 | £0k | 0.0% | |
| The Chief Constable for Devon and Cornwall Police | Other | 1 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 4 | £0k | 0.0% | |