| Espo | Other | 5 | £4m | 20.4% | 2020-11-03 |
| South Gloucestershire Council | Other | 1 | £2m | 11.8% | 2017-04-01 |
| The Association of North East Councils Limited | Other | 3 | £2m | 8.4% | 2018-02-12 |
| North Yorkshire County Council | Other | 1 | £915k | 4.8% | 2019-03-18 |
| London Borough of Bexley | Other | 1 | £780k | 4.1% | 2019-02-20 |
| Derbyshire County Council | Other | 3 | £655k | 3.4% | 2020-07-09 |
| Oxfordshire County Council | Other | 1 | £542k | 2.8% | 2022-02-28 |
| Kent County CouncilNew | Other | 1 | £514k | 2.7% | 2024-12-16 |
| Bracknell Forest Borough Council | Other | 1 | £475k | 2.5% | 2017-12-12 |
| Kent Colunty Councxil (t/a KCS) | Other | 1 | £400k | 2.1% | 2021-10-31 |
| Cambridgeshire County Council | Other | 3 | £390k | 2.0% | 2026-03-18 |
| London Borough of Newham | Other | 1 | £385k | 2.0% | 2024-02-27 |
| Bristol City Council | Other | 3 | £380k | 2.0% | 2020-01-15 |
| Lincolnshire County Council | Other | 1 | £350k | 1.8% | 2018-03-29 |
| Manchester City CouncilNew | Other | 1 | £334k | 1.7% | 2025-12-02 |
| Brighton and Hove City Council | Other | 2 | £308k | 1.6% | 2023-05-05 |
| Northamptonshire County Council | Other | 1 | £287k | 1.5% | 2020-07-10 |
| Somerset County Council | Other | 2 | £275k | 1.4% | 2018-07-24 |
| Bournemouth Christchurch and Poole Council | Other | 1 | £271k | 1.4% | 2022-07-13 |
| University of Wolverhampton | Other | 1 | £270k | 1.4% | 2018-05-11 |
| Cheshire West and Chester Council | Other | 2 | £260k | 1.4% | 2025-02-01 |
| Central Bedfordshire Council | Other | 2 | £238k | 1.2% | 2022-03-16 |
| Wolverhampton City CouncilNew | Other | 1 | £206k | 1.1% | 2025-09-05 |
| CHESHIRE EAST COUNCIL | Other | 2 | £203k | 1.1% | 2022-04-01 |
| North Somerset Council | Other | 1 | £203k | 1.1% | 2019-10-14 |
| East Riding of Yorkshire Council | Other | 1 | £167k | 0.9% | 2022-03-03 |
| Stockport Metropolitan Borough Council | Other | 1 | £165k | 0.9% | 2024-04-21 |
| Leicestershire County CouncilNew | Other | 1 | £163k | 0.9% | 2025-03-05 |
| City of London Corporation | Other | 1 | £158k | 0.8% | 2020-03-30 |
| Durham County Council | Other | 1 | £154k | 0.8% | 2022-05-09 |
| Sandwell Metropolitan Borough Council | Other | 1 | £150k | 0.8% | 2022-09-21 |
| Blackpool Council | Other | 1 | £150k | 0.8% | 2024-04-12 |
| Gloucestershire County Council | Other | 2 | £140k | 0.7% | 2023-11-16 |
| Sunderland City Council | Other | 1 | £126k | 0.7% | 2024-05-17 |
| Star Procurement | Other | 1 | £118k | 0.6% | 2020-04-01 |
| UNIVERSITY OF DERBY | Other | 2 | £103k | 0.5% | 2022-10-27 |
| Wigan Council | Other | 1 | £99k | 0.5% | 2019-11-08 |
| Staffordshire County CouncilNew | Other | 1 | £89k | 0.5% | 2024-06-01 |
| City of Bradford Metropolitan District Council | Other | 1 | £87k | 0.5% | 2023-08-07 |
| Royal Holloway, Bedford New College | Other | 1 | £84k | 0.4% | 2022-07-05 |
| West Northamptonshire CouncilNew | Other | 1 | £69k | 0.4% | 2024-11-14 |
| Coventry City Council | Other | 1 | £69k | 0.4% | 2022-08-03 |
| UNIVERSITY OF SHEFFIELDNew | Other | 1 | £69k | 0.4% | 2024-07-31 |
| Hampshire County CouncilNew | Other | 1 | £64k | 0.3% | 2024-12-24 |
| Knowsley Metropolitan Borough Council | Other | 1 | £53k | 0.3% | 2018-01-31 |
| Bedford Borough Council | Other | 1 | £52k | 0.3% | 2019-11-21 |
| Blackburn With Darwen Borough Council | Other | 1 | £45k | 0.2% | 2020-10-06 |
| Royal Holloway and Bedford New CollegeNew | Other | 1 | £45k | 0.2% | 2025-06-13 |
| University of York | Other | 1 | £44k | 0.2% | 2018-03-26 |
| Wirral Borough Council | Other | 1 | £44k | 0.2% | 2023-02-09 |
| Birmingham City Council | Other | 1 | £44k | 0.2% | 2024-05-01 |
| St Helens Council | Other | 1 | £42k | 0.2% | 2020-03-10 |
| DERBY CITY COUNCIL | Other | 1 | £40k | 0.2% | 2018-04-09 |
| Rotherham Metropolitan Borough Council | Other | 1 | £39k | 0.2% | 2021-10-14 |
| Rotherham MBC | Other | 1 | £31k | 0.2% | 2016-05-10 |
| Leeds City Council | Other | 1 | £23k | 0.1% | 2021-03-31 |
| Essex County Council | Other | 1 | £1k | 0.0% | 2020-10-05 |
| Somerset CouncilNew | Other | 1 | £0k | 0.0% | 2025-12-16 |
| University for the Creative Arts | Other | 1 | £0k | 0.0% | 2018-12-10 |
| University of Leeds | Other | 1 | £0k | 0.0% | 2016-09-01 |
| London Borough of Merton | Other | 1 | £0k | 0.0% | |
| Norfolk County Council | Other | 1 | £0k | 0.0% | |
| Scotland Excel | Other | 3 | £0k | 0.0% | |
| Leicester City Council | Other | 2 | £0k | 0.0% | |
| Kent County Council (t/a KCS) | Other | 2 | £0k | 0.0% | |