| Leicestershire County Council, trading as ESPONew | Other | 6 | £90m | 79.9% | 2026-03-05 |
| Procurement for Housing | Other | 3 | £8m | 6.7% | 2018-11-13 |
| Espo | Other | 6 | £5m | 4.7% | 2022-03-29 |
| The University Caterers Organisation Ltd (TUCO Ltd) | Other | 1 | £2m | 2.1% | 2018-11-12 |
| Ministry of Justice | Other | 1 | £2m | 1.3% | 2016-01-07 |
| LONDON & QUADRANT HOUSING TRUST LIMITED | Other | 1 | £1m | 1.0% | 2015-12-04 |
| Sanctuary Housing Association | Other | 3 | £595k | 0.5% | 2023-07-08 |
| Hampshire County Council | Other | 12 | £508k | 0.5% | 2025-11-17 |
| NOTTINGHAM COMMUNITY HOUSING ASSOCIATION 2014 LIMITED | Other | 1 | £480k | 0.4% | 2023-08-01 |
| Thirteen Housing Group LtdNew | Other | 1 | £381k | 0.3% | 2024-09-30 |
| Newcastle City Council | Other | 4 | £360k | 0.3% | 2026-01-08 |
| ONE HOUSING GROUP LIMITED | Other | 1 | £338k | 0.3% | 2019-07-25 |
| Sunderland City Council | Other | 2 | £324k | 0.3% | 2023-05-19 |
| LIFECYCLE MANAGEMENT GROUP LIMITED | Other | 1 | £270k | 0.2% | 2023-09-28 |
| NHS South West - Acutes | Other | 1 | £250k | 0.2% | 2021-09-22 |
| WANDLE HOUSING ASSOCIATION LIMITEDNew | Other | 1 | £240k | 0.2% | 2024-08-19 |
| Ministry of Defence | Other | 5 | £184k | 0.2% | 2024-03-05 |
| Rotherham Metropolitan Borough Council | Other | 1 | £125k | 0.1% | 2022-04-12 |
| Uttlesford District CouncilNew | Other | 1 | £125k | 0.1% | 2025-10-01 |
| Kent Community Health NHS Foundation Trust | Other | 1 | £96k | 0.1% | 2017-11-22 |
| Partners Procurement Service | Other | 1 | £90k | 0.1% | 2020-04-09 |
| Basildon and Thurrock University Hospitals NHS Foundation Trust | Other | 1 | £84k | 0.1% | 2019-12-30 |
| Torus 62 Ltd | Other | 1 | £84k | 0.1% | 2023-10-16 |
| YPO | Other | 1 | £81k | 0.1% | 2019-02-14 |
| WAKEFIELD COUNCILNew | Other | 1 | £63k | 0.1% | 2025-06-02 |
| East Riding of Yorkshire Council | Other | 1 | £47k | 0.0% | 2019-02-26 |
| RUGBY BOROUGH COUNCIL | Other | 1 | £40k | 0.0% | 2021-10-25 |
| UNIVERSITY OF SOUTHAMPTON | Other | 1 | £40k | 0.0% | 2016-10-20 |
| Bolton at Home | Other | 1 | £40k | 0.0% | 2024-04-15 |
| Partners Procurement Service (PPS) | Other | 1 | £30k | 0.0% | 2024-02-07 |
| Royal University Hospitals Bath NHS Foundation TrustNew | Other | 1 | £27k | 0.0% | 2024-08-13 |
| Nuneaton & Bedworth Borough Council | Other | 1 | £25k | 0.0% | 2020-10-29 |
| Bedfordshire Fire and Rescue Service | Other | 1 | £14k | 0.0% | 2017-06-12 |
| The Pensions Regulator | Other | 1 | £12k | 0.0% | 2022-10-14 |
| CALDERDALE AND HUDDERSFIELD SOLUTIONS LTD | Other | 1 | £2k | 0.0% | 2022-05-06 |
| BrunelcareNew | Other | 1 | £0k | 0.0% | 2024-12-01 |
| University of Essex | Other | 1 | £0k | 0.0% | 2021-04-09 |
| Harrogate Borough Council | Other | 1 | £0k | 0.0% | 2019-03-01 |
| University of Warwick | Other | 1 | £0k | 0.0% | 2017-05-08 |
| NHS Supply Chain | Other | 1 | £0k | 0.0% | 2017-03-31 |
| SE Shared Services | Other | 1 | £0k | 0.0% | 2016-09-30 |
| Cheshire West and Chester Council | Other | 1 | £0k | 0.0% | |
| York Teaching Hospital Facilities Management LLP | Other | 1 | £0k | 0.0% | |
| Great Places Housing Group | Other | 1 | £0k | 0.0% | |
| Liverpool Women's NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| Wythenshawe Community Housing Group (WCHG) | Other | 1 | £0k | 0.0% | |
| Cardiff Metropolitan University | Other | 1 | £0k | 0.0% | |
| The Royal Marsden NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| London Borough of Newham | Other | 1 | £0k | 0.0% | |
| Thirteen Housing Group Limited | Other | 1 | £0k | 0.0% | |
| MEDWAY NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |
| Aspire Housing | Other | 1 | £0k | 0.0% | |
| BRISTOL & WESTON NHS PURCHASING CONSORTIUM | Other | 1 | £0k | 0.0% | |