| Ministry of Justice | Other | 118 | £442m | 53.1% | 2026-04-27 |
| Department for Work & Pensions | Other | 9 | £341m | 40.9% | 2020-10-05 |
| Gloucestershire County Council | Other | 2 | £8m | 0.9% | 2018-12-06 |
| Department for Education | Other | 3 | £7m | 0.9% | 2021-01-29 |
| Nottinghamshire County Council | Other | 1 | £6m | 0.7% | 2021-02-01 |
| Warwickshire Police & West Mercia Police Procurement & Contracts Department | Other | 1 | £6m | 0.7% | 2018-07-23 |
| Liverpool City Region Combined Authority (LCRCA) | Other | 1 | £4m | 0.5% | 2022-05-06 |
| Wakefield Council Customer Service | Other | 1 | £3m | 0.4% | 2020-09-30 |
| Wirral Borough Council | Other | 1 | £3m | 0.4% | 2016-06-28 |
| East of England NHS collaborative Procurement HubNew | Other | 8 | £3m | 0.3% | 2025-11-14 |
| West Yorkshire Combined Authority | Other | 6 | £2m | 0.3% | 2023-08-23 |
| THE BUSINESS GROWTH HUB LIMITED | Other | 4 | £2m | 0.3% | 2018-01-17 |
| Tower Hamlets | Other | 1 | £2m | 0.2% | 2019-02-12 |
| Stoke-on-Trent City Council | Other | 1 | £1m | 0.2% | 2019-01-30 |
| NORTH TYNESIDE COUNCIL | Other | 1 | £732k | 0.1% | 2023-06-01 |
| Brighton and Hove City Council | Other | 1 | £580k | 0.1% | 2017-12-04 |
| Cambridgeshire County Council | Other | 1 | £531k | 0.1% | 2019-12-23 |
| Lincolnshire County Council | Other | 1 | £429k | 0.1% | 2019-07-08 |
| Cumbria County Council | Other | 1 | £139k | 0.0% | 2018-05-31 |
| West Hertfordshire Hospitals NHS TrustNew | Other | 1 | £138k | 0.0% | 2024-10-01 |
| Sunderland City Council | Other | 1 | £125k | 0.0% | 2018-02-27 |
| CHESHIRE EAST COUNCIL | Other | 1 | £125k | 0.0% | 2018-08-07 |
| Birmingham City Council | Other | 6 | £80k | 0.0% | 2020-11-20 |
| Durham County Council | Other | 2 | £78k | 0.0% | 2019-05-15 |
| Buckinghamshire Council | Other | 1 | £68k | 0.0% | 2018-09-12 |
| Tees Valley Combined Authority | Other | 1 | £40k | 0.0% | 2021-12-03 |
| Calderdale College | Other | 1 | £0k | 0.0% | 2021-10-15 |
| Coventry - Solihull - Warwickshire | Other | 1 | £0k | 0.0% | 2018-12-18 |
| SE Shared Services | Other | 1 | £0k | 0.0% | 2018-01-30 |
| Black Country Business | Other | 1 | £0k | 0.0% | 2017-08-07 |
| Further Education Colleges | Other | 1 | £0k | 0.0% | 2017-02-28 |
| Edinburgh Napier University | Other | 3 | £0k | 0.0% | |
| Clackmannanshire Council | Other | 2 | £0k | 0.0% | |
| Scottish Prison Service | Other | 1 | £0k | 0.0% | |
| Leeds and York Partnership NHS Foundation Trust, trading as North of England NHS Commercial Procurement Collaborative ("NOE CPC") | Other | 1 | £0k | 0.0% | |
| Dumfries and Galloway Council | Other | 3 | £0k | 0.0% | |
| East Sussex County Council | Other | 1 | £0k | 0.0% | |
| Leeds City Council - PACS | Other | 1 | £0k | 0.0% | |
| New College Durham | Other | 2 | £0k | 0.0% | |
| Cambridgeshire and Peterborough Combined Authority | Other | 1 | £0k | 0.0% | |
| Liverpool City Region Combined Authority | Other | 1 | £0k | 0.0% | |
| The Hertfordshire Partnership University NHS Foundation Trust | Other | 2 | £0k | 0.0% | |
| Leeds City Council | Other | 1 | £0k | 0.0% | |
| Skills Development Scotland Co. Limited | Other | 3 | £0k | 0.0% | |
| NHS Nottingham and Nottinghamshire Clinical Commissioning Group | Other | 1 | £0k | 0.0% | |
| Tyne Coast College | Other | 1 | £0k | 0.0% | |