| Crown Commercial Service | Other | 9 | £17m | 22.9% | 2023-12-21 |
| Espo | Other | 4 | £10m | 14.1% | 2022-07-06 |
| CIRRUS PURCHASING LTDNew | Other | 1 | £10m | 13.5% | 2025-08-27 |
| DEPARTMENT FOR LEVELLING UP, HOUSING AND COMMUNITIES | Other | 3 | £8m | 11.0% | 2024-02-05 |
| N H S Shared Business Services | Other | 1 | £3m | 4.1% | 2024-01-26 |
| National Employment Savings Trust (NEST) CorporationNew | Other | 2 | £3m | 3.8% | 2025-07-18 |
| Department for Work & Pensions | Other | 7 | £3m | 3.8% | 2024-04-05 |
| Care Quality Commission | Other | 3 | £1m | 1.5% | 2022-09-28 |
| Competition and Markets Authority | Other | 3 | £1m | 1.5% | 2025-05-20 |
| The Education and Training Foundation | Other | 4 | £1m | 1.5% | 2022-11-07 |
| Ministry of Defence | Other | 7 | £831k | 1.1% | 2024-09-19 |
| DfTc - Department for Transport | Other | 2 | £792k | 1.1% | 2024-11-19 |
| General Medical Council (GMC) | Other | 5 | £725k | 1.0% | 2023-09-27 |
| Essex County Council | Other | 4 | £625k | 0.8% | 2021-05-17 |
| Sport England | Other | 3 | £605k | 0.8% | 2022-03-18 |
| Parliamentary and Health Service Ombudsman | Other | 6 | £508k | 0.7% | 2025-10-28 |
| Nursing And Midwifery Council | Other | 6 | £474k | 0.6% | 2023-03-30 |
| Office for Students | Other | 2 | £450k | 0.6% | 2023-02-28 |
| Cabinet Office | Other | 13 | £423k | 0.6% | 2026-04-30 |
| Staffordshire County Council | Other | 2 | £332k | 0.4% | 2022-12-02 |
| Southampton City Council | Other | 1 | £300k | 0.4% | 2022-11-26 |
| MCA - Maritime and Coastguard Agency | Other | 4 | £274k | 0.4% | 2023-10-13 |
| NHS Digital | Other | 1 | £250k | 0.3% | 2021-12-22 |
| Kingston Upon Hull City Council | Other | 1 | £250k | 0.3% | 2019-02-07 |
| Equality and Human Rights Commission | Other | 1 | £246k | 0.3% | 2019-10-10 |
| Kirklees Council | Other | 1 | £240k | 0.3% | 2022-05-13 |
| Nottingham Trent University | Other | 1 | £233k | 0.3% | 2018-07-11 |
| Hampshire County CouncilNew | Other | 1 | £225k | 0.3% | 2026-03-25 |
| Security Industry AuthorityNew | Other | 1 | £224k | 0.3% | 2025-10-09 |
| Financial Ombudsman Service LimitedNew | Other | 1 | £212k | 0.3% | 2024-08-15 |
| Civil Nuclear Police Authority (CNPA) / Civil Nuclear Constabulary (CNC) | Other | 3 | £208k | 0.3% | 2023-07-05 |
| Department of Health and Social Care (DHSC) | Other | 2 | £204k | 0.3% | 2025-08-14 |
| UNIVERSITY OF EXETER | Other | 4 | £201k | 0.3% | 2022-12-09 |
| General Pharmaceutical CouncilNew | Other | 1 | £200k | 0.3% | 2025-10-27 |
| Ofsted | Other | 1 | £200k | 0.3% | 2021-05-31 |
| ICS on behalf of DSIT and DESNZNew | Other | 3 | £193k | 0.3% | 2025-06-03 |
| HM Land RegistryNew | Other | 4 | £178k | 0.2% | 2026-01-15 |
| Valuation Office Agency | Other | 3 | £174k | 0.2% | 2024-05-29 |
| Government Legal Department | Other | 5 | £162k | 0.2% | 2024-07-26 |
| United Kingdom Atomic Energy Authority | Other | 2 | £160k | 0.2% | 2023-03-09 |
| Lincolnshire County Council | Other | 1 | £156k | 0.2% | 2023-01-06 |
| The Riverside Group LimitedNew | Other | 1 | £155k | 0.2% | 2024-12-18 |
| Homes England (the name adopted by the Homes and Communities Agency) | Other | 1 | £151k | 0.2% | 2021-07-05 |
| Somerset County Council | Other | 1 | £150k | 0.2% | 2022-02-28 |
| Transport for London | Other | 1 | £150k | 0.2% | 2021-08-04 |
| Civil Service HR | Other | 3 | £149k | 0.2% | 2021-05-24 |
| Gatenby Sanderson | Other | 1 | £148k | 0.2% | 2021-08-16 |
| National Audit Office | Other | 4 | £141k | 0.2% | 2023-01-05 |
| Forestry England for and on behalf of the Forestry Commission | Other | 1 | £137k | 0.2% | 2024-02-23 |
| Leeds City Council | Other | 1 | £133k | 0.2% | 2016-03-22 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 4 | £129k | 0.2% | 2024-10-09 |
| Durham University | Other | 1 | £129k | 0.2% | 2019-09-13 |
| Business Energy and Industrial Strategy | Other | 1 | £125k | 0.2% | 2023-06-02 |
| Department for Energy Security & Net Zero | Other | 1 | £122k | 0.2% | 2024-03-05 |
| RESTORATION AND RENEWAL DELIVERY AUTHORITY LTD | Other | 1 | £120k | 0.2% | 2021-08-05 |
| O F W A T | Other | 1 | £119k | 0.2% | 2023-04-03 |
| H M REVENUE & CUSTOMS | Other | 4 | £108k | 0.1% | 2023-06-12 |
| UNIVERSITY OF NOTTINGHAM (THE) | Other | 2 | £106k | 0.1% | 2020-03-16 |
| TRINITY HOUSENew | Other | 1 | £105k | 0.1% | 2024-11-07 |
| National Institute for Health and Care Excellence | Other | 1 | £100k | 0.1% | 2021-10-28 |
| CROYDON COUNCILNew | Other | 1 | £99k | 0.1% | 2025-06-30 |
| Oldham Metropolitan Borough Council | Other | 1 | £95k | 0.1% | |
| National Savings & Investments | Other | 2 | £94k | 0.1% | 2023-07-13 |
| Barnsley Metropolitan Borough Council | Other | 1 | £90k | 0.1% | 2021-03-31 |
| Oldham Council | Other | 1 | £90k | 0.1% | 2019-05-01 |
| FCANew | Other | 1 | £88k | 0.1% | 2025-03-17 |
| NUCLEAR DECOMMISSIONING AUTHORITY | Other | 1 | £85k | 0.1% | 2021-05-21 |
| Financial Services Compensation Scheme | Other | 2 | £84k | 0.1% | 2022-12-19 |
| NHS Arden and Greater East Midlands Commissioning Support Unit | Other | 2 | £82k | 0.1% | 2023-08-23 |
| Surrey County Council | Other | 1 | £82k | 0.1% | 2019-07-16 |
| NHS Business Services Authority (North East)New | Other | 1 | £82k | 0.1% | 2025-06-06 |
| Corporate Officer of the House of CommonsNew | Other | 1 | £82k | 0.1% | 2026-04-23 |
| Harborough District Council | Other | 1 | £80k | 0.1% | 2022-06-15 |
| NHS EnglandNew | Other | 2 | £80k | 0.1% | 2025-09-04 |
| Rotherham Metropolitan Borough Council | Other | 4 | £80k | 0.1% | 2024-06-26 |
| Gambling Commission | Other | 2 | £78k | 0.1% | 2025-05-31 |
| Hull University Teaching Hospitals NHS Trust | Other | 1 | £78k | 0.1% | 2022-02-11 |
| Government Digital Service | Other | 1 | £77k | 0.1% | 2021-09-30 |
| Buckinghamshire and Milton Keynes Fire Authority | Other | 2 | £76k | 0.1% | 2024-04-02 |
| The Pensions RegulatorNew | Other | 1 | £75k | 0.1% | 2024-12-20 |
| Post OfficeNew | Other | 2 | £75k | 0.1% | 2024-09-01 |
| Information Commissioner's Office | Other | 1 | £73k | 0.1% | 2024-05-14 |
| SERIOUS FRAUD OFFICE | Other | 2 | £71k | 0.1% | 2023-10-02 |
| Driver and Vehicle Licensing Agency | Other | 1 | £69k | 0.1% | 2022-01-28 |
| Department for Culture, Media and Sport | Other | 3 | £64k | 0.1% | 2024-11-22 |
| NHS Blood and Transplant (NHSBT)New | Other | 1 | £64k | 0.1% | 2026-05-01 |
| The Insolvency ServiceNew | Other | 1 | £61k | 0.1% | 2025-12-23 |
| Nottingham City Council | Other | 1 | £60k | 0.1% | 2023-10-16 |
| Newry, Mourne and Down District Council (NMD) New | Other | 2 | £60k | 0.1% | 2026-02-13 |
| Historic England | Other | 1 | £60k | 0.1% | 2024-05-01 |
| Sheffield Hallam University | Other | 1 | £60k | 0.1% | 2023-01-25 |
| Greater Manchester Combined Authority - GMPNew | Other | 1 | £55k | 0.1% | 2026-02-20 |
| Financial Conduct Authority (FCA)New | Other | 1 | £54k | 0.1% | 2026-01-26 |
| Cambridgeshire District Councils | Other | 1 | £53k | 0.1% | 2018-01-31 |
| Consumer Council for Water | Other | 1 | £53k | 0.1% | 2019-10-24 |
| Home OfficeNew | Other | 1 | £50k | 0.1% | 2025-05-06 |
| Stoke-on-Trent City Council | Other | 1 | £50k | 0.1% | 2020-12-08 |
| Bradford College | Other | 1 | £48k | 0.1% | 2018-10-01 |
| City of Bradford Metropolitan District Council | Other | 1 | £48k | 0.1% | 2023-06-22 |
| DEFRANew | Other | 1 | £45k | 0.1% | 2026-02-25 |
| DERBYSHIRE COMMUNITY HEALTH SERVICES NHS FOUNDATION TRUST | Other | 2 | £44k | 0.1% | 2022-12-04 |
| LEEDS TRINITY UNIVERSITYNew | Other | 1 | £42k | 0.1% | 2025-05-07 |
| POLICE DIGITAL SERVICE | Other | 1 | £42k | 0.1% | 2024-01-30 |
| Financial Conduct AuthorityNew | Other | 1 | £38k | 0.1% | 2025-04-03 |
| Derbyshire Support and Facilities Services Ltd DSFS | Other | 1 | £37k | 0.1% | 2022-03-11 |
| The Charity Commission For England And Wales | Other | 1 | £37k | 0.0% | 2023-08-23 |
| NHS South West - Acutes | Other | 2 | £36k | 0.0% | 2021-07-26 |
| Lincolnshire Housing Partnership | Other | 1 | £35k | 0.0% | 2022-03-16 |
| Office of Rail and Road | Other | 1 | £34k | 0.0% | 2023-04-24 |
| Office of Qualifications and Examinations Regulation (Ofqual) | Other | 2 | £34k | 0.0% | 2024-11-28 |
| West Midlands Fire ServiceNew | Other | 1 | £34k | 0.0% | 2024-09-23 |
| HM TreasuryNew | Other | 1 | £34k | 0.0% | 2024-08-08 |
| Office for Environmental Protection | Other | 1 | £33k | 0.0% | 2022-08-11 |
| Department for Business & TradeNew | Other | 1 | £32k | 0.0% | 2025-10-31 |
| THE UNIVERSITY OF BIRMINGHAM | Other | 1 | £32k | 0.0% | 2023-09-27 |
| HM Revenue & Customs | Other | 1 | £32k | 0.0% | 2020-12-03 |
| East Suffolk and North East Essex Foundation TrustNew | Other | 1 | £31k | 0.0% | 2024-06-12 |
| Ministry of Housing, Communities & Local Government | Other | 1 | £31k | 0.0% | 2019-11-11 |
| West Hertfordshire Hospitals NHS TrustNew | Other | 1 | £30k | 0.0% | 2024-08-21 |
| Redditch Borough CouncilNew | Other | 1 | £30k | 0.0% | 2024-08-23 |
| Department for International Trade | Other | 1 | £30k | 0.0% | 2022-09-20 |
| University of LeedsNew | Other | 2 | £29k | 0.0% | 2024-06-19 |
| Intellectual Property Office | Other | 1 | £26k | 0.0% | 2022-03-28 |
| NHS Shared Business Services (Commercial Procurement Solutions) | Other | 1 | £26k | 0.0% | 2023-02-03 |
| FINANCIAL SERVICES COMPENSATION SCHEME LIMITEDNew | Other | 1 | £26k | 0.0% | 2025-02-24 |
| London Borough of HackneyNew | Other | 1 | £25k | 0.0% | 2024-09-13 |
| General Dental Council | Other | 1 | £21k | 0.0% | 2022-09-29 |
| THE FINANCIAL REPORTING COUNCIL LIMITED | Other | 1 | £20k | 0.0% | 2023-05-12 |
| Bristol City Council | Other | 1 | £20k | 0.0% | 2018-03-16 |
| Airedale NHS Foundation TrustNew | Other | 1 | £20k | 0.0% | 2024-07-01 |
| Homes England | Other | 1 | £15k | 0.0% | 2021-08-01 |
| NORTH TYNESIDE COUNCIL | Other | 1 | £8k | 0.0% | 2019-12-12 |
| Health Education and Improvement WalesNew | Other | 2 | £0k | 0.0% | 2026-03-05 |
| Torbay Council | Other | 2 | £0k | 0.0% | 2022-10-18 |
| Civil Service Resourcing : Cabinet Office | Other | 1 | £0k | 0.0% | 2020-11-11 |
| Birmingham City Council | Other | 1 | £0k | 0.0% | 2016-09-22 |
| Plus Dane Housing Ltd. | Other | 1 | £0k | 0.0% | |
| Rail Safety and Standards Board | Other | 1 | £0k | 0.0% | |
| Bridgend County Borough Council | Other | 1 | £0k | 0.0% | |
| The Mersey Docks and Harbour Company | Other | 1 | £0k | 0.0% | |
| UNIVERSITY OF DERBY | Other | 1 | £0k | 0.0% | |
| OPEN UNIVERSITY(THE) | Other | 1 | £0k | 0.0% | |
| Gentoo Group | Other | 1 | £0k | 0.0% | |
| University of Glasgow | Other | 1 | £0k | 0.0% | |
| North East London NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| Department for Transport | Other | 1 | £0k | 0.0% | |
| Nottingham Trent University (NTU) | Other | 1 | £0k | 0.0% | |
| University of Aberdeen | Other | 1 | £0k | 0.0% | |
| NHS Property Services | Other | 1 | £0k | 0.0% | |
| Hyde Housing Association | Other | 1 | £0k | 0.0% | |
| London Borough of Waltham Forest | Other | 3 | £0k | 0.0% | |
| Cirrus Consortium c/o Halton Housing | Other | 1 | £0k | 0.0% | |
| University Of Edinburgh | Other | 1 | £0k | 0.0% | |
| Cambridgeshire Community Services NHS Trust | Other | 1 | £0k | 0.0% | |
| PUBLIC SECTOR AUDIT APPOINTMENTS LIMITED | Other | 1 | £0k | 0.0% | |
| South East Wales Corporate Joint Committee | Other | 1 | £0k | 0.0% | |
| Llywodraeth Cymru / Welsh Government | Other | 1 | £0k | 0.0% | |
| CAMBRIDGE UNIVERSITY HOSPITALS NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |
| MIDLAND HEART LIMITED | Other | 1 | £0k | 0.0% | |
| British Library Board | Other | 1 | £0k | 0.0% | |
| PLYMOUTH COMMUNITY HOMES LIMITED | Other | 1 | £0k | 0.0% | |