| Homes EnglandNew | Other | 1 | £20m | 16.6% | 2026-05-11 |
| DfTc - Department for Transport | Other | 1 | £15m | 12.8% | 2023-07-10 |
| DEFRA | Other | 2 | £10m | 8.5% | 2023-08-30 |
| Great Places Housing Group | Other | 1 | £7m | 5.6% | 2020-05-29 |
| ANGLIAN WATER SERVICES LIMITEDNew | Other | 1 | £6m | 5.0% | 2026-05-01 |
| North of England Commercial Procurement Collaborative | Other | 1 | £5m | 4.4% | 2023-08-03 |
| Metropolitan Police Service | Other | 3 | £5m | 3.8% | 2023-06-19 |
| Department for Education | Other | 2 | £4m | 3.5% | 2023-10-25 |
| Government Commercial AgencyNew | Other | 1 | £4m | 3.0% | 2026-04-27 |
| East Riding of Yorkshire CouncilNew | Other | 2 | £4m | 2.9% | 2025-01-08 |
| NEUPC LtdNew | Other | 2 | £3m | 2.5% | 2025-04-16 |
| GREATER MANCHESTER EDUCATION TRUSTNew | Other | 2 | £3m | 2.5% | 2025-04-15 |
| Catalyst Housing Limited | Other | 1 | £3m | 2.1% | 2019-09-12 |
| British Museum | Other | 2 | £2m | 1.9% | 2021-05-14 |
| Foreign Commonwealth and Development OfficeNew | Other | 2 | £2m | 1.8% | 2024-10-07 |
| Swindon Borough Council | Other | 3 | £2m | 1.7% | 2022-10-31 |
| CHESHIRE EAST COUNCIL | Other | 8 | £2m | 1.5% | 2022-11-28 |
| West Northamptonshire Council | Other | 5 | £2m | 1.4% | 2022-06-24 |
| Fusion21 Members ConsortiumNew | Other | 7 | £1m | 1.2% | 2025-09-02 |
| BE FIRST (REGENERATION) LTD. | Other | 2 | £1m | 1.1% | 2022-10-21 |
| THE UNIVERSITY OF BIRMINGHAM | Other | 6 | £1m | 1.1% | 2025-03-21 |
| London Fire And Emergency Planning Authority | Other | 1 | £1m | 1.0% | 2017-11-13 |
| Ministry of Justice | Other | 27 | £1m | 1.0% | 2019-01-17 |
| East Sussex Healthcare NHS TrustNew | Other | 1 | £1m | 0.8% | 2025-01-30 |
| Loughborough University | Other | 5 | £890k | 0.7% | 2026-02-10 |
| Queen Victoria Hospital NHS Foundation TrustNew | Other | 1 | £842k | 0.7% | 2025-01-01 |
| The Guinness Partnership Ltd | Other | 3 | £833k | 0.7% | 2021-06-25 |
| UK HSA | Other | 1 | £795k | 0.7% | 2021-10-20 |
| Kirklees Council | Other | 2 | £744k | 0.6% | 2022-09-16 |
| Barnsley Metropolitan Borough Council | Other | 1 | £725k | 0.6% | 2023-05-05 |
| Environment Agency | Other | 1 | £701k | 0.6% | 2023-05-09 |
| Transport for LondonNew | Other | 1 | £600k | 0.5% | 2025-08-21 |
| CENTRE FOR PROCESS INNOVATION LIMITED | Other | 7 | £594k | 0.5% | 2024-09-09 |
| Lewisham and Greenwich NHS TrustNew | Other | 2 | £536k | 0.4% | 2024-09-10 |
| London School of Hygiene & Tropical Medicine | Other | 1 | £534k | 0.4% | 2019-05-21 |
| City of London Corporation | Other | 5 | £518k | 0.4% | 2024-08-13 |
| Coventry City CouncilNew | Other | 2 | £500k | 0.4% | 2025-01-24 |
| BBC (British Broadcasting Corporation) | Other | 2 | £462k | 0.4% | 2023-05-17 |
| HCC - Resources | Other | 1 | £420k | 0.3% | 2021-08-24 |
| SOMERSET NHS FOUNDATION TRUST | Other | 3 | £361k | 0.3% | 2025-06-13 |
| UK ParliamentNew | Other | 1 | £356k | 0.3% | 2025-09-15 |
| Whittington HealthNew | Other | 1 | £350k | 0.3% | 2026-04-09 |
| West London Hospital NHS Trust | Other | 1 | £337k | 0.3% | 2024-02-05 |
| Barts Health NHS Trust | Other | 1 | £321k | 0.3% | 2019-07-11 |
| Plymouth City Council | Other | 5 | £299k | 0.2% | 2022-10-19 |
| Milton Keynes Council | Other | 3 | £276k | 0.2% | 2020-02-19 |
| capitalEsourcing | Other | 2 | £251k | 0.2% | 2020-12-04 |
| Victoria and Albert Museum | Other | 2 | £250k | 0.2% | 2023-11-01 |
| The Arts Council of England | Other | 1 | £233k | 0.2% | 2020-03-27 |
| Harper Adams University | Other | 2 | £203k | 0.2% | 2023-04-27 |
| Buckinghamshire Council | Other | 2 | £172k | 0.1% | 2022-06-27 |
| University Of The West Of England | Other | 5 | £170k | 0.1% | 2022-03-11 |
| Surrey County Council | Other | 1 | £168k | 0.1% | 2023-07-06 |
| Corserv Limited | Other | 1 | £150k | 0.1% | 2019-07-31 |
| North Devon District Council | Other | 2 | £144k | 0.1% | 2022-04-11 |
| Luminate Education GroupNew | Other | 2 | £104k | 0.1% | 2026-01-13 |
| Civil Aviation AuthorityNew | Other | 1 | £99k | 0.1% | 2025-08-18 |
| Information Commissioners Office | Other | 1 | £99k | 0.1% | 2023-04-24 |
| Department for Work & Pensions | Other | 1 | £90k | 0.1% | 2016-06-01 |
| Worcestershire Acute Nhs TrustNew | Other | 1 | £85k | 0.1% | 2026-01-06 |
| Stevenage Borough CouncilNew | Other | 7 | £80k | 0.1% | 2024-06-20 |
| SE Shared Services | Other | 2 | £80k | 0.1% | 2018-05-25 |
| WESTWORKS PROCUREMENT LIMITED | Other | 3 | £79k | 0.1% | 2023-11-24 |
| Cornwall Council | Other | 1 | £74k | 0.1% | 2017-09-27 |
| West Suffolk Council | Other | 1 | £74k | 0.1% | 2021-06-23 |
| Newcastle University | Other | 1 | £72k | 0.1% | 2019-09-11 |
| Liverpool City CouncilNew | Other | 1 | £59k | 0.0% | 2025-08-28 |
| Community Health Partnerships Limited | Other | 2 | £58k | 0.0% | 2021-03-31 |
| MOORFIELDS EYE HOSPITAL NHS FOUNDATION TRUST | Other | 1 | £54k | 0.0% | 2019-04-04 |
| Bristol City Council | Other | 1 | £50k | 0.0% | 2018-04-25 |
| Keele University | Other | 1 | £43k | 0.0% | 2020-10-22 |
| Runnymede Borough Council | Other | 1 | £39k | 0.0% | 2021-10-29 |
| Cornwall College | Other | 1 | £30k | 0.0% | 2018-04-17 |
| Science Museum Group | Other | 1 | £29k | 0.0% | 2020-06-24 |
| MEDICINES DISCOVERY CATAPULT | Other | 1 | £28k | 0.0% | 2021-06-16 |
| North Somerset Council | Other | 1 | £23k | 0.0% | 2022-12-06 |
| Worcestershire Acute Hospitals NHS TrustNew | Other | 1 | £16k | 0.0% | 2026-01-22 |
| City College Plymouth | Other | 1 | £12k | 0.0% | 2018-10-19 |
| TOWN AND COUNTRY HOUSING GROUP | Other | 1 | £0k | 0.0% | 2019-07-09 |
| The Royal Parks LtdNew | Other | 1 | £0k | 0.0% | 2026-05-20 |
| Oxford City CouncilNew | Other | 1 | £0k | 0.0% | 2025-02-11 |
| VIVID | Other | 1 | £0k | 0.0% | 2023-07-03 |
| Birmingham City Council | Other | 1 | £0k | 0.0% | 2018-11-06 |
| SATELLITE APPLICATIONS CATAPULT LIMITED | Other | 1 | £0k | 0.0% | 2018-04-24 |
| The Association of North East Councils Limited | Other | 1 | £0k | 0.0% | 2017-09-19 |
| University Of Edinburgh | Other | 3 | £0k | 0.0% | |
| Information Commissioner's Office | Other | 1 | £0k | 0.0% | |
| University of Glasgow | Other | 1 | £0k | 0.0% | |
| Network Rail Infrastructure Ltd | Other | 2 | £0k | 0.0% | |
| NHS Wales Shared Services Partnership (hosted by Velindre University NHS Trust) | Other | 1 | £0k | 0.0% | |
| Leeds Beckett University | Other | 1 | £0k | 0.0% | |
| NSS Health Facilities Scotland | Other | 2 | £0k | 0.0% | |
| University of St Andrews | Other | 1 | £0k | 0.0% | |
| Transport for Wales | Other | 1 | £0k | 0.0% | |
| THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE | Other | 1 | £0k | 0.0% | |
| NHS Greater Glasgow and Clyde | Other | 1 | £0k | 0.0% | |
| The Common Services Agency (more commonly known as NHS National Services Scotland) (NSS) | Other | 2 | £0k | 0.0% | |
| OXFORD DIRECT SERVICES LIMITED | Other | 1 | £0k | 0.0% | |
| Scottish Prison Service | Other | 1 | £0k | 0.0% | |
| Scotland Excel | Other | 6 | £0k | 0.0% | |
| Cardiff Metropolitan University | Other | 1 | £0k | 0.0% | |
| Quality Trusted Solutions LLP | Other | 5 | £0k | 0.0% | |
| Velindre University NHS Trust as the Hosting Body of NHS Wales Shared Services Partnership - SES | Other | 2 | £0k | 0.0% | |
| LHC | Other | 5 | £0k | 0.0% | |
| North of England Commercial Procurement Collaborative (NOE CPC) (hosted by and acting through Leeds and York Partnership NHS Foundation Trust.) | Other | 2 | £0k | 0.0% | |
| Northern Trains Limited | Other | 1 | £0k | 0.0% | |
| Department for Transport | Other | 1 | £0k | 0.0% | |
| Home Group | Other | 2 | £0k | 0.0% | |
| Peel Ports Investments Limited | Other | 1 | £0k | 0.0% | |
| LHC for the Scottish Procurement Alliance (SPA) | Other | 2 | £0k | 0.0% | |
| LHC Procurement Group Limited for the Welsh Procurement Alliance (WPA) | Other | 2 | £0k | 0.0% | |
| LHC Procurement Group Limited | Other | 1 | £0k | 0.0% | |
| PIRBRIGHT INNOVATIONS LIMITED | Other | 1 | £0k | 0.0% | |
| UNITED UTILITIES WATER LIMITED | Other | 1 | £0k | 0.0% | |
| The Highland Council | Other | 1 | £0k | 0.0% | |
| The Council of the Borough of Kirklees | Other | 1 | £0k | 0.0% | |
| Royal Borough of Kensington and Chelsea | Other | 1 | £0k | 0.0% | |
| Scottish Police Authority | Other | 1 | £0k | 0.0% | |
| Glasgow School of Art | Other | 1 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 1 | £0k | 0.0% | |
| Department for Environment Food & Rural Affairs | Other | 1 | £0k | 0.0% | |
| SRUC | Other | 1 | £0k | 0.0% | |
| University of Plymouth | Other | 1 | £0k | 0.0% | |