| Crown Commercial Service | Other | 6 | £298m | 34.3% | 2022-06-01 |
| NHS SHARED BUSINESS SERVICES LIMITEDNew | Other | 2 | £250m | 28.8% | 2025-11-11 |
| Government Commercial AgencyNew | Other | 2 | £150m | 17.3% | 2026-01-05 |
| Public Health England | Other | 2 | £31m | 3.5% | 2020-12-20 |
| Home Office | Other | 3 | £27m | 3.1% | 2022-06-20 |
| Department for Work & Pensions | Other | 2 | £19m | 2.2% | 2022-03-16 |
| DfTc - Department for Transport | Other | 1 | £15m | 1.7% | 2023-02-06 |
| UKHSANew | Other | 1 | £13m | 1.5% | 2024-12-16 |
| Llywodraeth Cymru / Welsh GovernmentNew | Other | 1 | £9m | 1.1% | 2025-06-30 |
| Ministry of Housing, Communities & Local Government | Other | 3 | £9m | 1.1% | 2024-12-03 |
| Department for Education | Other | 4 | £7m | 0.8% | 2025-12-19 |
| Sellafield LtdNew | Other | 2 | £6m | 0.6% | 2024-09-01 |
| Office for National Statistics | Other | 3 | £4m | 0.5% | 2025-03-15 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 7 | £4m | 0.5% | 2022-08-16 |
| Foreign Commonwealth and Development Office | Other | 1 | £4m | 0.5% | 2017-07-31 |
| Department for International Trade | Other | 1 | £3m | 0.3% | 2021-07-23 |
| Department for Business & TradeNew | Other | 1 | £2m | 0.3% | 2026-02-02 |
| DEPARTMENT FOR LEVELLING UP, HOUSING AND COMMUNITIES | Other | 2 | £2m | 0.2% | 2023-07-25 |
| National Employment Savings Trust (NEST) CorporationNew | Other | 2 | £2m | 0.2% | 2026-04-24 |
| Security Industry Authority | Other | 1 | £2m | 0.2% | 2024-04-16 |
| The National Lottery Community FundNew | Other | 2 | £1m | 0.1% | 2025-09-15 |
| Lancashire County Council | Other | 2 | £1m | 0.1% | 2024-11-30 |
| HM Revenue & Customs | Other | 2 | £1m | 0.1% | 2019-09-30 |
| The Office for Standards in Education, Children's Services and Skills | Other | 1 | £836k | 0.1% | 2021-11-25 |
| BBC (British Broadcasting Corporation) | Other | 1 | £800k | 0.1% | 2023-02-07 |
| NHS England | Other | 1 | £587k | 0.1% | 2024-01-08 |
| NCG Corporation | Other | 1 | £578k | 0.1% | 2021-07-12 |
| H M REVENUE & CUSTOMS | Other | 3 | £570k | 0.1% | 2026-03-31 |
| Big Lottery Fund, operating as The National Lottery Community Fund | Other | 1 | £500k | 0.1% | 2021-08-30 |
| the Education Authority | Other | 1 | £270k | 0.0% | 2023-07-28 |
| Office for Students | Other | 1 | £240k | 0.0% | 2020-04-16 |
| ANIMAL AND PLANT HEALTH AGENCY | Other | 1 | £238k | 0.0% | 2023-09-01 |
| Barnsley Metropolitan Borough Council | Other | 1 | £229k | 0.0% | 2022-12-08 |
| STUDENT LOANS COMPANY LIMITED | Other | 1 | £200k | 0.0% | 2023-12-01 |
| Ministry of Justice | Other | 1 | £200k | 0.0% | 2018-01-03 |
| Care Quality Commission | Other | 1 | £160k | 0.0% | 2019-04-01 |
| The Coal AuthorityNew | Other | 1 | £130k | 0.0% | 2024-11-29 |
| Devon and Somerset Fire and Rescue AuthorityNew | Other | 1 | £130k | 0.0% | 2024-07-24 |
| ICS on behalf of DSIT and DESNZNew | Other | 1 | £115k | 0.0% | 2025-10-30 |
| National Audit OfficeNew | Other | 1 | £100k | 0.0% | 2026-02-09 |
| NHS Digital | Other | 1 | £95k | 0.0% | 2019-06-07 |
| Bristol City Council | Other | 1 | £94k | 0.0% | 2023-06-15 |
| East Riding of Yorkshire Council | Other | 1 | £75k | 0.0% | 2023-08-18 |
| Rotherham Metropolitan Borough Council | Other | 1 | £74k | 0.0% | 2023-02-05 |
| Competition and Markets Authority | Other | 2 | £72k | 0.0% | 2020-06-15 |
| West Northamptonshire Council | Other | 1 | £65k | 0.0% | 2022-10-21 |
| Peterborough City Council | Other | 1 | £54k | 0.0% | 2023-01-04 |
| HM Land Registry | Other | 1 | £40k | 0.0% | 2021-02-09 |
| Redcar and Cleveland Borough Council | Other | 1 | £32k | 0.0% | 2023-02-05 |
| CHESHIRE EAST COUNCIL | Other | 1 | £17k | 0.0% | 2019-01-11 |
| Ambulance Radio Programme (ARP) | Other | 1 | £11k | 0.0% | 2022-07-08 |
| Northern Trains Limited | Other | 1 | £0k | 0.0% | |
| Network Rail Infrastructure Ltd | Other | 1 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 1 | £0k | 0.0% | |
| DEFRA | Other | 1 | £0k | 0.0% | |
| HM Treasury | Other | 2 | £0k | 0.0% | |
| HealthTrust Europe LLP (HTE) acting on behalf of | Other | 1 | £0k | 0.0% | |
| ulster university | Other | 1 | £0k | 0.0% | |
| Companies House | Other | 1 | £0k | 0.0% | |
| DRIVER & VEHICLE LICENSING AGENCY | Other | 1 | £0k | 0.0% | |
| Wirral Council | Other | 1 | £0k | 0.0% | |