| London Borough of Waltham ForestNew | Other | 4 | £100m | 79.5% | 2026-02-24 |
| Espo | Other | 4 | £10m | 8.3% | 2022-07-06 |
| Department of Health and Social Care (DHSC) | Other | 74 | £4m | 3.3% | 2023-07-24 |
| National Employment Savings Trust (NEST) CorporationNew | Other | 2 | £3m | 2.2% | 2025-07-18 |
| Department of Health & Social Care | Other | 32 | £1m | 0.9% | 2025-03-31 |
| Department of Health and Social Care (T&T) | Other | 6 | £1m | 0.9% | 2021-08-12 |
| Foreign Commonwealth and Development Office | Other | 13 | £815k | 0.6% | 2023-06-20 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 11 | £809k | 0.6% | 2024-03-20 |
| Department of Health and Social Care (London) | Other | 14 | £711k | 0.6% | 2021-03-24 |
| UK Health Security Agency | Other | 6 | £557k | 0.4% | 2022-06-01 |
| Department for Culture, Media and Sport | Other | 13 | £526k | 0.4% | 2025-03-18 |
| Competition and Markets Authority | Other | 3 | £498k | 0.4% | 2023-11-24 |
| Crown Commercial Service | Other | 5 | £210k | 0.2% | 2021-06-10 |
| SERIOUS FRAUD OFFICE | Other | 8 | £196k | 0.2% | 2025-10-05 |
| The Insolvency Service | Other | 3 | £174k | 0.1% | 2022-03-16 |
| Department of Health and Social Care (Yorkshire) | Other | 2 | £160k | 0.1% | 2021-10-01 |
| The Office for Standards in Education, Children's Services and SkillsNew | Other | 2 | £154k | 0.1% | 2025-08-18 |
| FCDO Services | Other | 2 | £142k | 0.1% | 2017-11-26 |
| The National Archives | Other | 4 | £117k | 0.1% | 2026-03-02 |
| Defence Digital (ISG) | Other | 1 | £115k | 0.1% | 2022-05-18 |
| Birmingham City Council | Other | 2 | £111k | 0.1% | 2024-12-16 |
| Cabinet Office | Other | 2 | £102k | 0.1% | 2020-08-01 |
| National Employment Savings Trust (NEST) | Other | 1 | £100k | 0.1% | 2021-06-28 |
| Ofsted | Other | 1 | £90k | 0.1% | 2022-11-25 |
| Ordnance Survey Ltd | Other | 1 | £90k | 0.1% | 2020-08-13 |
| COLLEGE OF POLICING LIMITED | Other | 1 | £73k | 0.1% | 2019-03-10 |
| Ministry of Defence | Other | 1 | £66k | 0.1% | 2022-09-22 |
| HM TreasuryNew | Other | 1 | £55k | 0.0% | 2026-02-10 |
| Ministry of Justice | Other | 1 | £50k | 0.0% | 2021-06-02 |
| CPSNew | Other | 1 | £49k | 0.0% | 2025-06-23 |
| Medicines and Healthcare Products Regulatory Agency | Other | 1 | £47k | 0.0% | 2023-09-08 |
| National Citizen Service | Other | 1 | £40k | 0.0% | 2019-07-01 |
| Wandle Housing Association | Other | 2 | £18k | 0.0% | 2023-07-31 |
| Office of Rail and Road | Other | 1 | £15k | 0.0% | 2024-03-26 |
| Driver and Vehicle Licensing Agency | Other | 1 | £8k | 0.0% | 2023-06-22 |
| Procurement Services - Lifecycle on behalf of COMMERCIAL SERVICES KENT LIMITED | Other | 3 | £0k | 0.0% | |
| Historic England | Other | 1 | £0k | 0.0% | |
| NHS Property Services | Other | 1 | £0k | 0.0% | |
| Southern Universities Purchasing Consortium (SUPC) | Other | 3 | £0k | 0.0% | |
| Hyde Housing Association Ltd | Other | 1 | £0k | 0.0% | |
| Oxford Brookes University | Other | 1 | £0k | 0.0% | |