| EASTERN PROCUREMENT LIMITED | Other | 6 | £48m | 32.2% | 2026-01-23 |
| Hyde Housing Association Ltd | Other | 2 | £22m | 15.0% | 2024-05-20 |
| Echelon Consultancy Ltd | Other | 2 | £20m | 13.5% | 2023-06-26 |
| Fusion21 Members Consortium | Other | 48 | £13m | 9.0% | 2025-09-02 |
| Communities & Housing Investment Consortium Ltd (CHIC) | Other | 7 | £8m | 5.3% | 2025-01-27 |
| Braintree District Council | Other | 4 | £6m | 4.0% | 2022-01-05 |
| Westminster City CouncilNew | Other | 1 | £5m | 3.5% | 2025-07-10 |
| NEUPC Ltd | Other | 1 | £3m | 2.0% | 2020-02-18 |
| L&Q Housing TrustNew | Other | 1 | £2m | 1.5% | 2025-02-24 |
| Inprova Group | Other | 3 | £2m | 1.5% | 2023-10-19 |
| South East Consortium | Other | 9 | £2m | 1.3% | 2024-12-09 |
| N H S Shared Business ServicesNew | Other | 1 | £2m | 1.3% | 2025-01-06 |
| Espo | Other | 1 | £2m | 1.2% | 2017-12-19 |
| West Northamptonshire Council | Other | 2 | £2m | 1.1% | 2022-06-24 |
| Transport for London | Other | 3 | £1m | 0.9% | 2022-06-27 |
| London Fire And Emergency Planning Authority | Other | 1 | £1m | 0.8% | 2017-11-13 |
| Moat Homes Ltd | Other | 1 | £1m | 0.7% | 2019-06-02 |
| Royal Borough of Greenwich | Other | 3 | £672k | 0.4% | 2020-10-21 |
| B3LivingNew | Other | 2 | £600k | 0.4% | 2024-08-15 |
| Central and North West London NHS Foundation Trust | Other | 1 | £495k | 0.3% | 2015-06-01 |
| London Borough of Camden | Other | 1 | £487k | 0.3% | 2021-03-26 |
| L&Q Construction | Other | 5 | £471k | 0.3% | 2020-01-23 |
| mhs homes groupNew | Other | 2 | £456k | 0.3% | 2025-12-05 |
| London Borough of Enfield | Other | 1 | £447k | 0.3% | 2023-08-11 |
| East Sussex County Council | Other | 4 | £419k | 0.3% | 2022-01-10 |
| WANDLE HOUSING ASSOCIATION LIMITED | Other | 1 | £336k | 0.2% | 2023-05-14 |
| FUSION 21 LIMITED | Other | 2 | £327k | 0.2% | 2017-09-18 |
| Brighton and Hove City Council | Other | 2 | £315k | 0.2% | 2019-09-19 |
| Wokingham Borough Council | Other | 2 | £304k | 0.2% | 2016-06-24 |
| Kent Community Health NHS Foundation TrustNew | Other | 1 | £300k | 0.2% | 2024-10-06 |
| Oxford City Council | Other | 1 | £250k | 0.2% | 2019-05-29 |
| PROCURE PLUS HOLDINGS LIMITED | Other | 1 | £234k | 0.2% | 2018-10-22 |
| London Borough of Haringey | Other | 4 | £200k | 0.1% | 2024-10-23 |
| City of London Corporation | Other | 5 | £188k | 0.1% | 2024-08-13 |
| Dartford Borough Council | Other | 1 | £127k | 0.1% | 2016-04-27 |
| Buckinghamshire Council | Other | 4 | £115k | 0.1% | 2020-03-27 |
| London Borough of Bromley | Other | 1 | £108k | 0.1% | 2019-10-29 |
| Runnymede Borough Council | Other | 1 | £100k | 0.1% | 2023-03-16 |
| Three Rivers District Council | Other | 1 | £83k | 0.1% | 2016-05-17 |
| London Borough of Hounslow | Other | 2 | £83k | 0.1% | 2021-04-23 |
| NSAH (ALLIANCE HOMES) LIMITEDNew | Other | 1 | £80k | 0.1% | 2025-01-20 |
| Stroud District Council | Other | 1 | £70k | 0.0% | 2024-01-05 |
| London Borough of Southwark | Other | 2 | £69k | 0.0% | 2021-05-12 |
| London Borough of Hillingdon | Other | 1 | £57k | 0.0% | 2017-09-25 |
| Octavia Housing (on behalf of The Connected Partnership) | Other | 1 | £38k | 0.0% | 2020-05-04 |
| Islington and Shoreditch Housing Association (acting as lead member of the North River Alliance) | Other | 1 | £23k | 0.0% | 2017-02-08 |
| Tunbridge Wells Borough CouncilNew | Other | 1 | £22k | 0.0% | 2024-09-06 |
| One Housing Group | Other | 1 | £19k | 0.0% | 2019-03-12 |
| Chelsea and Westminster Hospital NHS Foundation Trust | Other | 1 | £17k | 0.0% | 2022-03-31 |
| TOWN AND COUNTRY HOUSING GROUP | Other | 1 | £0k | 0.0% | 2019-07-09 |
| Leicestershire County Council, trading as ESPONew | Other | 12 | £0k | 0.0% | 2026-01-08 |
| Dover Harbour BoardNew | Other | 6 | £0k | 0.0% | 2025-12-18 |
| The Riverside Group LimitedNew | Other | 1 | £0k | 0.0% | 2025-02-12 |
| Procurement for Housing | Other | 4 | £0k | 0.0% | 2020-06-29 |
| Supply Hertfordshire | Other | 1 | £0k | 0.0% | 2018-07-20 |
| SE Shared Services | Other | 1 | £0k | 0.0% | 2017-07-10 |
| The Mayor and Commonalty and Citizens of the City of London | Other | 2 | £0k | 0.0% | |
| Great Yarmouth Borough Council | Other | 1 | £0k | 0.0% | |
| The Riverside Group | Other | 4 | £0k | 0.0% | |
| Moat Homes Limited | Other | 1 | £0k | 0.0% | |
| Medway Council | Other | 1 | £0k | 0.0% | |
| Watford Community Housing | Other | 2 | £0k | 0.0% | |
| Aster Group Limited | Other | 1 | £0k | 0.0% | |
| Christian Action (Enfield) Housing Association Ltd | Other | 1 | £0k | 0.0% | |
| Royal Borough of Kensington and Chelsea | Other | 1 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 2 | £0k | 0.0% | |
| London Borough of Newham | Other | 1 | £0k | 0.0% | |
| Canterbury City Council | Other | 1 | £0k | 0.0% | |