| Global Commercial Services Group LtdNew | Other | 6 | £500m | 66.8% | 2025-10-16 |
| Crown Commercial Service | Other | 121 | £60m | 8.0% | 2024-11-29 |
| Ministry of Defence | Other | 86 | £57m | 7.7% | 2026-04-02 |
| NHS Shared Business Services Ltd (NHS SBS) | Other | 2 | £56m | 7.5% | 2020-08-10 |
| Strategic Command - Headquarters (was JFC -Northwood) : Ministry of Defence | Other | 2 | £13m | 1.7% | 2020-03-10 |
| YPO | Other | 5 | £11m | 1.4% | 2023-12-19 |
| Bournemouth Christchurch and Poole CouncilNew | Other | 1 | £8m | 1.1% | 2025-06-03 |
| Air Training CorpsNew | Other | 1 | £7m | 0.9% | 2025-07-09 |
| Defence Digital (ISG) | Other | 1 | £4m | 0.5% | 2021-02-18 |
| RAF Cosford : Air Command, RAF High Wycombe | Other | 4 | £3m | 0.4% | 2021-01-21 |
| Blackpool Council | Other | 2 | £2m | 0.3% | 2023-11-27 |
| DRIVER & VEHICLE LICENSING AGENCY | Other | 8 | £2m | 0.3% | 2020-04-09 |
| Royal Air Force (RAF) - Headquarters : Ministry of Defence | Other | 2 | £2m | 0.3% | 2020-11-19 |
| Blackburn With Darwen Borough CouncilNew | Other | 3 | £1m | 0.2% | 2025-10-10 |
| Tower HamletsNew | Other | 1 | £1m | 0.2% | 2026-01-12 |
| Defence Equipment and Support | Other | 3 | £1m | 0.2% | 2020-05-15 |
| Notting Hill Genesis | Other | 1 | £1m | 0.2% | 2023-05-09 |
| Bristol City Council | Other | 1 | £1m | 0.2% | 2020-02-01 |
| Department for Education | Other | 2 | £1m | 0.2% | 2023-05-24 |
| Newcastle City Council | Other | 1 | £1m | 0.2% | 2018-03-13 |
| New College Stamford | Other | 2 | £863k | 0.1% | 2020-08-07 |
| HM Treasury | Other | 2 | £860k | 0.1% | 2025-11-03 |
| Greater Manchester Combined Authority - GMP | Other | 3 | £856k | 0.1% | 2025-03-31 |
| Competition and Markets Authority | Other | 3 | £811k | 0.1% | 2022-09-30 |
| Department for Work & Pensions | Other | 5 | £770k | 0.1% | 2024-12-19 |
| Dorset & Wiltshire Fire and Rescue Service | Other | 2 | £678k | 0.1% | 2019-06-04 |
| Essex Police, Fire and Crime Commissioner Fire and Rescue Authority | Other | 3 | £663k | 0.1% | 2025-06-24 |
| The National Archives | Other | 4 | £652k | 0.1% | 2025-08-25 |
| Police and Crime Commissioner for Dyfed Powys | Other | 2 | £574k | 0.1% | 2026-02-24 |
| Scottish Fire and Rescue Service : Scottish Fire and Rescue Service | Other | 1 | £497k | 0.1% | 2020-09-09 |
| West Midlands Fire ServiceNew | Other | 1 | £457k | 0.1% | 2025-03-05 |
| Avon & Somerset Constabulary | Other | 1 | £439k | 0.1% | 2020-03-23 |
| Joint Forces Command - Headquarters (Northwood) : Ministry of Defence | Other | 1 | £427k | 0.1% | 2018-10-11 |
| ADVISORY, CONCILIATION AND ARBITRATION SERVICENew | Other | 2 | £388k | 0.1% | 2025-10-17 |
| Army HQ (Andover) : Ministry of Defence | Other | 4 | £372k | 0.0% | 2019-12-05 |
| Hertfordshire County CouncilNew | Other | 1 | £334k | 0.0% | 2024-07-18 |
| Wirral Borough Council | Other | 3 | £307k | 0.0% | 2026-04-29 |
| Driver and Vehicle Licensing Agency | Other | 3 | £307k | 0.0% | 2025-03-19 |
| Defence Academy Of The UK | Other | 1 | £265k | 0.0% | 2023-09-11 |
| Gower College SwanseaNew | Other | 1 | £263k | 0.0% | 2025-04-02 |
| South Yorkshire Fire and Rescue Service | Other | 2 | £255k | 0.0% | 2024-09-24 |
| Cambridgeshire Fire and Rescue Service | Other | 1 | £244k | 0.0% | 2024-03-01 |
| Army Commercial | Other | 1 | £204k | 0.0% | 2020-03-10 |
| National Audit Office | Other | 1 | £189k | 0.0% | 2024-03-13 |
| Nottinghamshire County CouncilNew | Other | 1 | £181k | 0.0% | 2024-06-13 |
| Home Office | Other | 3 | £176k | 0.0% | 2024-03-01 |
| South Yorkshire Police Headquarters | Other | 2 | £167k | 0.0% | 2017-12-04 |
| D V L A | Other | 2 | £157k | 0.0% | 2018-09-27 |
| UNIVERSITY OF SALFORD(THE) | Other | 1 | £155k | 0.0% | 2024-01-19 |
| Welland Procurement Unit | Other | 1 | £154k | 0.0% | 2020-07-03 |
| MCA - Maritime and Coastguard Agency | Other | 2 | £143k | 0.0% | 2025-11-19 |
| PAPWORTH HOSPITAL NHS FOUNDATION TRUST | Other | 1 | £135k | 0.0% | 2016-01-13 |
| Gwent Constabulary | Other | 1 | £127k | 0.0% | 2019-09-02 |
| North East Lincolnshire Council | Other | 1 | £120k | 0.0% | 2018-02-12 |
| NHS Arden and Greater East Midlands Commissioning Support Unit | Other | 2 | £113k | 0.0% | 2024-05-24 |
| Liverpool City CouncilNew | Other | 3 | £113k | 0.0% | 2024-11-12 |
| Hull CollegeNew | Other | 1 | £112k | 0.0% | 2024-07-11 |
| London Borough of Redbridge | Other | 1 | £104k | 0.0% | 2017-07-27 |
| Office for National Statistics | Other | 2 | £102k | 0.0% | 2022-04-01 |
| Hampshire and Isle of Wight Fire and Rescue Authority | Other | 1 | £102k | 0.0% | 2023-04-20 |
| SE Shared Services | Other | 1 | £100k | 0.0% | 2016-11-17 |
| Air Command, RAF High Wycombe : Air Command, RAF High Wycombe | Other | 1 | £100k | 0.0% | 2021-07-26 |
| Torbay CouncilNew | Other | 1 | £94k | 0.0% | 2025-03-17 |
| The Water Services Regulation Authority | Other | 1 | £71k | 0.0% | 2019-05-10 |
| Merseyside Fire and Rescue Authority | Other | 1 | £70k | 0.0% | 2023-11-29 |
| University College London Hospitals NHS Foundation Trust | Other | 1 | £59k | 0.0% | 2022-10-06 |
| NATIONAL WEALTH FUND LIMITEDNew | Other | 1 | £55k | 0.0% | 2025-11-20 |
| Taunton Deane Borough Council | Other | 1 | £49k | 0.0% | 2016-09-06 |
| Forestry Commission | Other | 1 | £48k | 0.0% | 2020-12-10 |
| CRESCENT PURCHASING LIMITED | Other | 1 | £48k | 0.0% | 2020-07-10 |
| BIP SOLUTIONS LIMITED | Other | 1 | £43k | 0.0% | 2023-08-23 |
| Tyne and Wear Passenger Transport Executive T/A Nexus | Other | 1 | £40k | 0.0% | 2021-01-19 |
| The Oldham CollegeNew | Other | 1 | £38k | 0.0% | 2025-09-05 |
| East Midlands Ambulance Service NHS Trust | Other | 1 | £34k | 0.0% | 2019-10-21 |
| Intellectual Property Office | Other | 1 | £34k | 0.0% | 2017-06-08 |
| Sunderland City Council | Other | 1 | £33k | 0.0% | 2024-01-19 |
| Derbyshire County Council | Other | 1 | £32k | 0.0% | 2017-04-19 |
| DEFRA | Other | 2 | £32k | 0.0% | 2022-11-25 |
| Met Office | Other | 1 | £13k | 0.0% | 2020-03-11 |
| Public Health England | Other | 1 | £10k | 0.0% | 2016-09-20 |
| Bedfordshire Fire and Rescue Service | Other | 1 | £9k | 0.0% | 2018-02-12 |
| Dixons Academies Charitable Trust Ltd | Other | 1 | £0k | 0.0% | 2024-03-20 |
| Milton Keynes CollegeNew | Other | 1 | £0k | 0.0% | 2024-08-13 |
| North Lincolnshire Council | Other | 1 | £0k | 0.0% | 2024-03-19 |
| Norfolk County Council | Other | 2 | £0k | 0.0% | 2022-09-12 |
| Neath Port Talbot County Borough Council | Other | 2 | £0k | 0.0% | |
| Wrexham County Borough Council | Other | 1 | £0k | 0.0% | |
| Newark And Sherwood District Council | Other | 1 | £0k | 0.0% | |
| Somerset Council | Other | 2 | £0k | 0.0% | |
| National Procurement Service (Welsh Government) | Other | 1 | £0k | 0.0% | |
| Flintshire County Council | Other | 2 | £0k | 0.0% | |
| City & County of Swansea | Other | 3 | £0k | 0.0% | |
| Public Sector | Other | 1 | £0k | 0.0% | |
| Pembrokeshire County Council | Other | 2 | £0k | 0.0% | |
| Cyngor Gwynedd | Other | 1 | £0k | 0.0% | |
| Denbighshire County Council | Other | 2 | £0k | 0.0% | |
| Blaenau Gwent County Borough Council | Other | 1 | £0k | 0.0% | |
| Isle of Anglesey County Council | Other | 2 | £0k | 0.0% | |
| Kent County Council (t/a KCS Procurement Services) | Other | 1 | £0k | 0.0% | |
| Hafod Housing | Other | 1 | £0k | 0.0% | |
| enFrame CIC | Other | 4 | £0k | 0.0% | |
| Llywodraeth Cymru / Welsh Government - Commercial Delivery | Other | 3 | £0k | 0.0% | |
| Llywodraeth Cymru / Welsh Government | Other | 2 | £0k | 0.0% | |
| Kent County Council (t/a KCS) | Other | 4 | £0k | 0.0% | |
| Welsh Government | Other | 4 | £0k | 0.0% | |