| GREATER MANCHESTER EDUCATION TRUSTNew | Other | 4 | £3m | 19.7% | 2025-04-15 |
| Competition and Markets Authority | Other | 15 | £1m | 8.7% | 2024-11-13 |
| UK Shared Business Services Ltd | Other | 1 | £1m | 7.1% | 2016-01-01 |
| West Yorkshire Combined Authority | Other | 6 | £957k | 6.3% | 2025-12-04 |
| The University of Northumbria at Newcastle | Other | 5 | £933k | 6.1% | 2021-04-28 |
| WRAP (Waste and Resources Action Programme) | Other | 2 | £900k | 5.9% | 2023-03-30 |
| Crown Commercial Service | Other | 2 | £695k | 4.6% | 2018-05-17 |
| OFCOM | Other | 2 | £588k | 3.9% | 2024-02-14 |
| Consumer Council for Water | Other | 2 | £505k | 3.3% | 2020-08-11 |
| FSCS | Other | 1 | £500k | 3.3% | 2018-11-09 |
| Board of Trustees of the Royal Botanic Gardens Kew | Other | 4 | £455k | 3.0% | 2025-01-14 |
| UK Research and Innovation (UKRI) | Other | 2 | £375k | 2.5% | 2021-12-15 |
| Information Commissioner's OfficeNew | Other | 1 | £301k | 2.0% | 2025-11-19 |
| Sunderland City CouncilNew | Other | 2 | £219k | 1.4% | 2025-06-03 |
| Met Office | Other | 4 | £211k | 1.4% | 2024-01-03 |
| Waste & Resources Action Programme | Other | 2 | £200k | 1.3% | 2026-03-03 |
| Leicester City Council | Other | 2 | £200k | 1.3% | 2024-01-11 |
| Royal Borough of Greenwich | Other | 1 | £155k | 1.0% | 2023-07-19 |
| Business Energy and Industrial Strategy | Other | 1 | £151k | 1.0% | 2023-11-21 |
| Trustees of the National Maritime Museum | Other | 1 | £150k | 1.0% | 2017-04-04 |
| BANK OF ENGLAND | Other | 1 | £150k | 1.0% | 2023-05-30 |
| NHS Business Services Authority | Other | 1 | £149k | 1.0% | 2019-02-18 |
| Salford City Council | Other | 2 | £129k | 0.9% | 2026-02-09 |
| Nottinghamshire County Council | Other | 1 | £120k | 0.8% | 2020-10-14 |
| National History Museum | Other | 1 | £116k | 0.8% | 2019-03-01 |
| Imperial War MuseumsNew | Other | 1 | £113k | 0.7% | 2025-11-13 |
| Manchester City Council | Other | 2 | £103k | 0.7% | 2023-08-15 |
| DEPARTMENT FOR LEVELLING UP, HOUSING AND COMMUNITIES | Other | 1 | £102k | 0.7% | 2021-04-26 |
| Science Museum Group | Other | 2 | £95k | 0.6% | 2024-11-20 |
| Leeds Beckett University | Other | 1 | £80k | 0.5% | 2020-01-18 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 5 | £79k | 0.5% | 2023-12-18 |
| Department of Health and Social Care (DHSC) | Other | 1 | £79k | 0.5% | 2018-09-10 |
| Legal Ombudsman | Other | 1 | £72k | 0.5% | 2018-03-06 |
| Devon and Somerset Fire and Rescue Authority | Other | 1 | £70k | 0.5% | 2021-08-12 |
| NHS Digital | Other | 1 | £67k | 0.4% | 2018-07-12 |
| South Yorkshire Mayoral Combined Authority Group | Other | 2 | £66k | 0.4% | 2023-08-31 |
| O F W A TNew | Other | 1 | £64k | 0.4% | 2025-05-14 |
| DEFRA | Other | 1 | £58k | 0.4% | 2023-11-06 |
| Health and Social Care Information Centre | Other | 1 | £55k | 0.4% | 2017-02-13 |
| LONDON & PARTNERS LIMITED | Other | 1 | £53k | 0.4% | 2022-12-02 |
| Nursing And Midwifery Council | Other | 1 | £53k | 0.3% | 2021-03-15 |
| General Medical Council (GMC) | Other | 1 | £45k | 0.3% | 2015-05-14 |
| Norwich City Council e-Tendering | Other | 1 | £44k | 0.3% | 2018-08-03 |
| The Insolvency Service | Other | 1 | £44k | 0.3% | 2021-01-25 |
| London Borough of Waltham Forest | Other | 1 | £41k | 0.3% | 2022-08-23 |
| Forestry England | Other | 1 | £41k | 0.3% | 2021-11-25 |
| Equality and Human Rights Commission | Other | 2 | £40k | 0.3% | 2022-08-10 |
| Royal Borough of Kingston Upon Thames | Other | 1 | £40k | 0.3% | 2022-06-10 |
| NHS Property Services Limited | Other | 1 | £35k | 0.2% | 2023-12-08 |
| Stevenage Borough CouncilNew | Other | 1 | £34k | 0.2% | 2025-02-19 |
| Care Quality Commission | Other | 1 | £25k | 0.2% | 2019-01-20 |
| UK RESEARCH & INNOVATIONNew | Other | 1 | £21k | 0.1% | 2024-12-05 |
| Peak District National Park Authority | Other | 1 | £21k | 0.1% | 2017-10-02 |
| Waste and Resources Action ProgrammeNew | Other | 4 | £0k | 0.0% | 2026-01-12 |
| FCA | Other | 2 | £0k | 0.0% | |
| NHS Wales Shared Services Partnership (hosted by Velindre University NHS Trust) | Other | 1 | £0k | 0.0% | |
| NHS Wales Shared Service Partnership | Other | 1 | £0k | 0.0% | |
| BBC (British Broadcasting Corporation) | Other | 1 | £0k | 0.0% | |
| UNITED UTILITIES WATER LIMITED | Other | 2 | £0k | 0.0% | |
| YORKSHIRE WATER SERVICES LIMITED | Other | 1 | £0k | 0.0% | |
| Scottish Council for Voluntary Organisations | Other | 1 | £0k | 0.0% | |
| Network Rail Infrastructure Ltd | Other | 2 | £0k | 0.0% | |
| Office of Rail and Road | Other | 1 | £0k | 0.0% | |