| Crown Commercial Service | Other | 5 | £496m | 50.4% | 2022-03-23 |
| Department for Education | Other | 4 | £425m | 43.2% | 2023-02-14 |
| Transport for London | Other | 1 | £10m | 1.0% | 2023-01-16 |
| Espo | Other | 9 | £8m | 0.8% | 2019-03-27 |
| Norfolk County Council | Other | 1 | £7m | 0.7% | 2023-07-17 |
| Ministry of Justice | Other | 1 | £6m | 0.6% | 2020-10-19 |
| HM Revenue & Customs | Other | 1 | £5m | 0.5% | 2020-09-28 |
| Leicestershire County Council | Other | 3 | £5m | 0.5% | 2022-04-29 |
| Department for Work & Pensions | Other | 3 | £4m | 0.4% | 2020-10-19 |
| STUDENT LOANS COMPANY LIMITED | Other | 1 | £2m | 0.2% | 2023-07-19 |
| Hertfordshire County Council | Other | 1 | £2m | 0.2% | 2021-06-17 |
| DEPARTMENT FOR LEVELLING UP, HOUSING AND COMMUNITIES | Other | 1 | £1m | 0.1% | 2023-08-14 |
| NHS Business Services Authority | Other | 1 | £999k | 0.1% | 2021-02-01 |
| Department for Environment Food & Rural Affairs | Other | 1 | £854k | 0.1% | 2024-01-02 |
| HM Treasury | Other | 1 | £818k | 0.1% | 2020-02-21 |
| NCG Corporation | Other | 1 | £800k | 0.1% | 2022-04-01 |
| Intellectual Property Office | Other | 1 | £751k | 0.1% | 2021-11-01 |
| NHS Blood and Tranplant | Other | 1 | £712k | 0.1% | 2022-01-27 |
| Big Lottery Fund, operating as The National Lottery Community Fund | Other | 1 | £660k | 0.1% | 2022-10-28 |
| YORK TEACHING HOSPITAL NHS FOUNDATION TRUST | Other | 1 | £648k | 0.1% | 2022-02-08 |
| Torbay Council | Other | 2 | £635k | 0.1% | 2018-12-14 |
| Government Legal Department | Other | 1 | £600k | 0.1% | 2017-07-19 |
| Food Standards Agency | Other | 1 | £500k | 0.1% | 2020-10-08 |
| Office of Qualifications and Examinations Regulation (Ofqual) | Other | 2 | £486k | 0.0% | 2023-02-06 |
| Solihull Metropolitan Borough Council | Other | 3 | £400k | 0.0% | 2023-07-03 |
| Bristol City Council | Other | 1 | £396k | 0.0% | 2022-03-10 |
| Department for International Trade | Other | 2 | £394k | 0.0% | 2022-02-08 |
| Barnsley Metropolitan Borough Council | Other | 1 | £308k | 0.0% | 2020-12-06 |
| Edenred | Other | 1 | £300k | 0.0% | 2022-09-22 |
| Medicines and Healthcare Products Regulatory Agency | Other | 1 | £250k | 0.0% | 2022-06-23 |
| OFFICE OF QUALIFICATIONS AND EXAMINATIONS REGULATION | Other | 1 | £246k | 0.0% | 2018-12-03 |
| MCA - Maritime and Coastguard Agency | Other | 1 | £239k | 0.0% | 2022-08-23 |
| The National Archives | Other | 2 | £225k | 0.0% | 2022-01-18 |
| Hampshire County Council | Other | 2 | £220k | 0.0% | 2021-06-18 |
| NHS Digital | Other | 2 | £200k | 0.0% | 2022-06-15 |
| Department of Health and Social Care (DHSC) | Other | 1 | £174k | 0.0% | 2016-07-22 |
| Equality and Human Rights Commission | Other | 1 | £168k | 0.0% | 2018-08-31 |
| Ofgem | Other | 1 | £120k | 0.0% | 2020-04-28 |
| Leeds City Council | Other | 2 | £103k | 0.0% | 2021-09-06 |
| UK Health Security Agency | Other | 1 | £100k | 0.0% | 2022-04-01 |
| DEFRA | Other | 1 | £99k | 0.0% | 2021-12-02 |
| London Ambulance Service NHS Trust | Other | 2 | £96k | 0.0% | 2024-01-04 |
| NHS BSA | Other | 1 | £80k | 0.0% | 2022-12-07 |
| Plymouth City Council | Other | 1 | £60k | 0.0% | 2018-04-11 |
| NHS Arden and Greater East Midlands Commissioning Support Unit | Other | 1 | £45k | 0.0% | 2023-09-14 |
| Harrow, Richmond & Uxbridge CollegesNew | Other | 1 | £27k | 0.0% | 2026-02-05 |
| Royal Holloway and Bedford New College, known as Royal Holloway, University of London | Other | 1 | £21k | 0.0% | 2023-08-31 |
| Somerset County Council | Other | 1 | £1k | 0.0% | 2021-03-17 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 3 | £0k | 0.0% | 2020-07-30 |
| Bedford Borough Council | Other | 1 | £0k | 0.0% | 2023-05-10 |
| Manchester City Council | Other | 1 | £0k | 0.0% | 2022-06-13 |
| NS&I | Other | 1 | £0k | 0.0% | 2021-08-01 |
| OFFICE OF NORTHAMPTONSHIRE POLICE AND CRIME COMMISSIONER | Other | 1 | £0k | 0.0% | 2021-06-30 |
| Care Quality Commission | Other | 2 | £0k | 0.0% | 2021-03-01 |
| Ministry of Housing, Communities & Local Government | Other | 1 | £0k | 0.0% | 2020-11-13 |
| North Yorkshire County Council | Other | 1 | £0k | 0.0% | 2020-09-28 |
| University of Hertfordshire | Other | 1 | £0k | 0.0% | 2016-08-31 |
| Scottish Government | Other | 1 | £0k | 0.0% | |
| LONDON & QUADRANT HOUSING TRUST | Other | 1 | £0k | 0.0% | |
| Forestry and Land Scotland | Other | 1 | £0k | 0.0% | |
| HealthTrust Europe LLP (HTE) acting as agent for the University Hospitals of Coventry and Warwickshire NHS Trust (“UHCW”) | Other | 1 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 1 | £0k | 0.0% | |
| Office of the Surrey Police and Crime Commissioner | Other | 1 | £0k | 0.0% | |