| LHC | Other | 1 | £289m | 34.8% | 2017-07-20 |
| London Borough of Merton | Other | 2 | £75m | 9.0% | 2021-05-14 |
| Department for Work & Pensions | Other | 1 | £72m | 8.7% | 2023-07-21 |
| Echelon Consultancy Ltd | Other | 2 | £52m | 6.2% | 2023-04-24 |
| EFFICIENCY EAST MIDLANDS LIMITED | Other | 1 | £41m | 5.0% | 2019-12-23 |
| The Guinness Partnership Ltd | Other | 1 | £38m | 4.5% | 2018-08-01 |
| London Borough of Camden | Other | 2 | £31m | 3.7% | 2019-11-19 |
| Leeds City Council | Other | 10 | £29m | 3.5% | 2021-11-26 |
| GOVERNMENT PROPERTY AGENCY | Other | 1 | £20m | 2.4% | 2022-08-19 |
| Sheffield City Council | Other | 5 | £17m | 2.1% | 2017-11-07 |
| Fusion21 Members Consortium | Other | 6 | £17m | 2.0% | 2023-12-19 |
| Great Places Housing Group | Other | 1 | £15m | 1.8% | 2019-06-12 |
| PROCURE PLUS HOLDINGS LIMITED | Other | 2 | £14m | 1.6% | 2018-06-28 |
| Durham University | Other | 1 | £13m | 1.6% | 2016-12-22 |
| Gentoo Group Limited | Other | 3 | £12m | 1.5% | 2019-10-01 |
| London Borough of Hounslow | Other | 2 | £12m | 1.4% | 2021-03-04 |
| ONE HOUSING GROUP LIMITED | Other | 1 | £12m | 1.4% | 2020-10-01 |
| One Housing Group | Other | 1 | £12m | 1.4% | 2020-09-24 |
| South East Consortium | Other | 4 | £10m | 1.2% | 2019-10-09 |
| NE Procurement Ltd | Other | 1 | £9m | 1.0% | 2016-09-01 |
| One Housing | Other | 2 | £6m | 0.8% | 2021-06-01 |
| Eastern Procurement Ltd | Other | 1 | £6m | 0.7% | 2016-02-05 |
| Richmondshire District Council | Other | 2 | £5m | 0.5% | 2022-05-03 |
| AMICUSHORIZON LIMITED | Other | 1 | £4m | 0.5% | 2017-03-28 |
| South Yorkshire Police Headquarters | Other | 6 | £3m | 0.4% | 2020-12-15 |
| Optivo | Other | 3 | £3m | 0.4% | 2020-05-28 |
| Stoke-on-Trent City Council | Other | 1 | £3m | 0.4% | 2017-11-27 |
| North Kesteven District Council | Other | 1 | £2m | 0.3% | 2018-11-02 |
| PROSPER | Other | 1 | £2m | 0.3% | 2019-12-02 |
| NORTH TYNESIDE COUNCIL | Other | 1 | £2m | 0.3% | 2018-02-27 |
| RICHMOND HOUSING PARTNERSHIP LIMITED | Other | 1 | £1m | 0.2% | 2023-04-28 |
| A2Dominion Housing Group Ltd (A2D) | Other | 1 | £963k | 0.1% | 2017-03-01 |
| Red Kite Community Housing | Other | 1 | £947k | 0.1% | 2017-10-19 |
| South Essex Homes Ltd | Other | 1 | £912k | 0.1% | 2018-08-01 |
| oneSource | Other | 1 | £450k | 0.1% | 2019-09-29 |
| Manchester City Council | Other | 1 | £438k | 0.1% | 2016-05-18 |
| Durham County Council | Other | 2 | £250k | 0.0% | 2018-09-17 |
| Dartford Borough CouncilNew | Other | 3 | £0k | 0.0% | 2026-03-24 |
| Transport for London | Other | 1 | £0k | 0.0% | 2016-04-07 |
| LONDON & QUADRANT HOUSING TRUST | Other | 1 | £0k | 0.0% | |
| The Hyde Group | Other | 21 | £0k | 0.0% | |
| Portsmouth City Council | Other | 1 | £0k | 0.0% | |
| East Riding of Yorkshire Council | Other | 1 | £0k | 0.0% | |
| Scarborough Borough Council | Other | 2 | £0k | 0.0% | |
| Leeds City Council - PACS | Other | 1 | £0k | 0.0% | |
| Rotherham Metropolitan Borough Council | Other | 1 | £0k | 0.0% | |
| London Borough of Haringey | Other | 1 | £0k | 0.0% | |
| Richmondshire | Other | 1 | £0k | 0.0% | |
| walsall housing group | Other | 1 | £0k | 0.0% | |