| PROCURE PLUS HOLDINGS LIMITED | Other | 1 | £26m | 13.4% | 2017-02-20 |
| Sovereign Housing Association | Other | 1 | £25m | 12.9% | 2021-08-03 |
| Oxford City Council | Other | 1 | £22m | 11.2% | 2020-02-17 |
| Optivo | Other | 1 | £20m | 10.2% | 2018-01-25 |
| YPO | Other | 5 | £16m | 8.1% | 2020-03-06 |
| One Housing Group | Other | 1 | £15m | 7.7% | 2021-10-15 |
| Spectrum Housing Group | Other | 1 | £14m | 7.0% | 2016-01-07 |
| Ongo Partnership Limited | Other | 1 | £8m | 4.1% | 2019-12-18 |
| Fusion21 Members Consortium | Other | 1 | £8m | 4.0% | 2020-11-10 |
| Ark Housing Consultancy | Other | 1 | £7m | 3.6% | 2019-03-18 |
| Espo | Other | 17 | £6m | 3.3% | 2021-07-05 |
| Procurement for Housing | Other | 1 | £6m | 3.1% | 2018-12-14 |
| EFFICIENCY EAST MIDLANDS LIMITED | Other | 1 | £5m | 2.4% | 2019-12-16 |
| CIRRUS PURCHASING LTD | Other | 1 | £3m | 1.5% | 2021-11-02 |
| NSAH (ALLIANCE HOMES) LIMITED | Other | 1 | £3m | 1.5% | 2021-08-03 |
| NORTH WESTERN UNIVERSITIES PURCHASING CONSORTIUM LIMITED | Other | 1 | £2m | 1.2% | 2019-12-23 |
| Stoke-on-Trent City Council (Unitas Stoke-on-Trent) | Other | 1 | £2m | 1.2% | 2018-09-18 |
| Bournemouth Christchurch and Poole Council | Other | 1 | £1m | 0.5% | 2020-03-19 |
| Platform Housing Group | Other | 1 | £1m | 0.5% | 2020-01-22 |
| St Leger Homes of Doncaster Ltd | Other | 1 | £849k | 0.4% | 2020-01-07 |
| Leeds City Council | Other | 1 | £550k | 0.3% | 2019-08-07 |
| South Tyneside Council | Other | 1 | £467k | 0.2% | 2016-01-27 |
| North Yorkshire County Council | Other | 1 | £465k | 0.2% | 2021-04-28 |
| Ministry of Defence | Other | 1 | £419k | 0.2% | 2016-03-21 |
| Newcastle City Council | Other | 3 | £373k | 0.2% | 2021-07-20 |
| L&Q Construction | Other | 3 | £333k | 0.2% | 2020-01-02 |
| Nottingham Trent University | Other | 1 | £285k | 0.1% | 2019-04-29 |
| Derbyshire County Council | Other | 1 | £275k | 0.1% | 2017-11-20 |
| Coventry City Council | Other | 1 | £257k | 0.1% | 2019-11-12 |
| Redditch Borough Council | Other | 1 | £180k | 0.1% | 2021-05-31 |
| Harrogate Borough Council | Other | 2 | £180k | 0.1% | 2019-08-27 |
| Doncaster MBC | Other | 1 | £175k | 0.1% | 2018-08-31 |
| Kirklees Council | Other | 2 | £106k | 0.1% | 2021-09-26 |
| Scape Group Limited | Other | 1 | £60k | 0.0% | 2021-12-13 |
| Leicester City Council | Other | 1 | £50k | 0.0% | 2018-04-09 |
| Halton Borough Council | Other | 1 | £48k | 0.0% | 2021-07-06 |
| Bradford Metropolitan District Council | Other | 1 | £45k | 0.0% | 2021-05-26 |
| Manchester City Council | Other | 1 | £36k | 0.0% | 2019-07-11 |
| Beech Grove Homes Limited | Other | 1 | £10k | 0.0% | 2020-12-13 |
| The City of Liverpool College | Other | 1 | £6k | 0.0% | 2022-01-28 |
| ADVANTAGE SOUTHWEST LLP | Other | 1 | £0k | 0.0% | 2019-09-30 |
| Hampshire County Council | Other | 1 | £0k | 0.0% | 2018-02-09 |
| NOE CPC | Other | 1 | £0k | 0.0% | 2019-10-14 |
| Bournemouth Borough Council | Other | 1 | £0k | 0.0% | 2015-12-01 |
| Legal, Democratic and Business Intelligence, Swansea Council, | Other | 1 | £0k | 0.0% | |
| Cirrus Consortium c/o Halton Housing | Other | 1 | £0k | 0.0% | |
| Accord Housing Association Limited ta GreenSquareAccord | Other | 9 | £0k | 0.0% | |
| City & County of Swansea | Other | 1 | £0k | 0.0% | |
| NY Highways Ltd | Other | 13 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 7 | £0k | 0.0% | |
| Doncaster & Bassetlaw Hospitals NHS Foundation Trust | Other | 1 | £0k | 0.0% | |