| Notting Hill GenesisNew | Other | 3 | £95m | 37.6% | 2024-08-22 |
| NHMF (NPC) LIMITED | Other | 5 | £38m | 14.9% | 2023-08-31 |
| Stonewater Limited | Other | 1 | £12m | 4.8% | 2018-12-24 |
| LHC | Other | 1 | £10m | 4.0% | 2017-03-24 |
| Communities & Housing Investment Consortium Ltd (CHIC)New | Other | 2 | £10m | 3.8% | 2025-03-17 |
| Echelon Consultancy Ltd | Other | 1 | £9m | 3.7% | 2020-10-09 |
| PROCURE PLUS HOLDINGS LIMITED | Other | 4 | £9m | 3.7% | 2024-06-21 |
| CLARION HOUSING GROUP LIMITED | Other | 3 | £9m | 3.7% | 2018-02-01 |
| Lewisham Homes Limited | Other | 3 | £8m | 3.1% | 2021-06-10 |
| South East Consortium | Other | 5 | £7m | 2.9% | 2023-12-18 |
| Procurement for Housing | Other | 4 | £6m | 2.6% | 2023-07-11 |
| Central and Cecil Housing Trust | Other | 5 | £5m | 2.1% | 2025-01-06 |
| Braintree District Council | Other | 1 | £5m | 2.0% | 2016-05-20 |
| Fusion21 Members Consortium | Other | 5 | £5m | 1.9% | 2024-01-29 |
| capitalEsourcing | Other | 1 | £4m | 1.4% | 2020-02-12 |
| London Borough of HillingdonNew | Other | 1 | £3m | 1.3% | 2026-04-23 |
| Islington Council | Other | 2 | £3m | 1.0% | 2018-03-20 |
| East Sussex County Council | Other | 12 | £2m | 1.0% | 2026-01-29 |
| Southern Housing | Other | 4 | £2m | 0.8% | 2025-10-27 |
| oneSource | Other | 1 | £1m | 0.4% | 2018-01-18 |
| BD GroupNew | Other | 1 | £939k | 0.4% | 2026-02-17 |
| The Hertfordshire Partnership University NHS Foundation TrustNew | Other | 7 | £893k | 0.4% | 2026-02-25 |
| Thames Valley Charitable Housing Association Limited and on behalf of Thames Valley Housing Association Limited | Other | 1 | £889k | 0.4% | 2017-08-01 |
| Tower Hamlets | Other | 1 | £753k | 0.3% | 2019-09-18 |
| London Borough of Ealing | Other | 3 | £690k | 0.3% | 2021-06-11 |
| Hyde Housing Association Ltd | Other | 4 | £631k | 0.3% | 2023-09-29 |
| Canterbury City Council | Other | 1 | £433k | 0.2% | 2019-01-30 |
| Civil Aviation Authority | Other | 1 | £379k | 0.2% | 2019-06-25 |
| Islington | Other | 1 | £350k | 0.1% | 2016-04-26 |
| London Borough of Brent | Other | 1 | £337k | 0.1% | 2020-07-09 |
| Medway Council | Other | 1 | £314k | 0.1% | 2018-05-10 |
| Kent Community Health NHS Foundation Trust | Other | 2 | £308k | 0.1% | 2026-02-06 |
| Royal Holloway and Bedford New College | Other | 1 | £228k | 0.1% | 2023-07-12 |
| London Borough of Bromley | Other | 1 | £209k | 0.1% | 2022-09-15 |
| Dartford Borough Council | Other | 1 | £206k | 0.1% | 2017-08-18 |
| Essex Police, Fire and Crime Commissioner Fire and Rescue AuthorityNew | Other | 1 | £195k | 0.1% | 2025-08-06 |
| London Fire Brigade | Other | 2 | £188k | 0.1% | 2022-11-07 |
| Hertfordshire Community NHS TrustNew | Other | 1 | £170k | 0.1% | 2024-10-28 |
| London Borough of Barking and DagenhamNew | Other | 1 | £125k | 0.0% | 2025-09-16 |
| Kent and Medway NHS and Social Care Partnership Trust | Other | 1 | £120k | 0.0% | 2022-04-06 |
| Bracknell Forest Homes | Other | 1 | £106k | 0.0% | 2016-06-24 |
| Partners Procurement Service | Other | 1 | £41k | 0.0% | 2017-08-31 |
| Optivo | Other | 1 | £32k | 0.0% | 2018-09-07 |
| Procurement Services - Lifecycle on behalf of COMMERCIAL SERVICES KENT LIMITED | Other | 2 | £0k | 0.0% | 2024-05-14 |
| SE Shared Services | Other | 1 | £0k | 0.0% | 2020-08-21 |
| LHC Procurement Group | Other | 2 | £0k | 0.0% | |
| EASTERN PROCUREMENT LIMITED | Other | 1 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 1 | £0k | 0.0% | |
| Wealden District Council | Other | 1 | £0k | 0.0% | |