| City of Doncaster CouncilNew | Other | 2 | £326m | 41.2% | 2025-09-29 |
| NHS Northamptonshire Integrated Care BoardNew | Other | 1 | £303m | 38.3% | 2026-03-24 |
| Cornwall CouncilNew | Other | 3 | £19m | 2.4% | 2024-09-25 |
| Hampshire County Council | Other | 2 | £11m | 1.4% | 2018-03-14 |
| NHS HUMBER & NORTH YORKSHIRE ICBNew | Other | 1 | £9m | 1.2% | 2024-12-10 |
| Espo | Other | 2 | £8m | 1.0% | 2017-02-28 |
| Bournemouth Borough Council | Other | 1 | £8m | 1.0% | 2019-03-22 |
| Northamptonshire County Council | Other | 1 | £8m | 1.0% | 2019-12-31 |
| Cambridgeshire County Council | Other | 3 | £7m | 0.9% | 2021-01-27 |
| North Lincolnshire Council | Other | 1 | £7m | 0.9% | 2018-10-01 |
| Middlesbrough Council | Other | 3 | £7m | 0.9% | 2020-04-27 |
| Borough Council of Calderdale | Other | 5 | £6m | 0.8% | 2023-04-06 |
| Gloucestershire County Council | Other | 3 | £6m | 0.7% | 2021-03-05 |
| Derbyshire County Council | Other | 4 | £5m | 0.7% | 2024-03-12 |
| Suffolk County Council | Other | 3 | £5m | 0.6% | 2025-07-10 |
| NHS Kernow Clinical Commissioning Group | Other | 1 | £5m | 0.6% | 2021-12-21 |
| Bradford Metropolitan District Council | Other | 3 | £4m | 0.6% | 2018-08-03 |
| NHS NORTH EAST LINCOLNSHIRE CLINICAL COMMISSIONING GROUP | Other | 1 | £4m | 0.6% | 2018-11-20 |
| Essex County Council | Other | 1 | £4m | 0.5% | 2021-03-01 |
| Lancashire County Council | Other | 1 | £4m | 0.5% | 2016-10-28 |
| Sheffield City Council | Other | 3 | £4m | 0.5% | 2018-09-03 |
| Wakefield Council Customer Service | Other | 1 | £3m | 0.4% | 2020-09-30 |
| Dorset county Council | Other | 1 | £3m | 0.4% | 2019-03-27 |
| Nottingham City Council | Other | 1 | £3m | 0.4% | 2018-02-25 |
| Royal Borough of Kingston Upon Thames | Other | 6 | £3m | 0.4% | 2023-12-18 |
| South Tyneside Council | Other | 4 | £3m | 0.4% | 2017-03-31 |
| City of Bradford Metropolitan District Council | Other | 3 | £3m | 0.3% | 2023-03-20 |
| Shropshire Council | Other | 1 | £2m | 0.3% | 2017-04-27 |
| Nottinghamshire County Council | Other | 4 | £2m | 0.3% | 2023-05-11 |
| Department for Education | Other | 3 | £1m | 0.2% | 2021-01-29 |
| Doncaster MBC | Other | 1 | £1m | 0.2% | 2018-06-20 |
| Luton Council | Other | 2 | £1m | 0.2% | 2023-01-10 |
| Darlington Borough Council | Other | 7 | £944k | 0.1% | 2017-07-01 |
| Tower Hamlets | Other | 3 | £889k | 0.1% | 2021-02-12 |
| Wiltshire Council | Other | 2 | £723k | 0.1% | 2019-01-04 |
| Leeds City Council | Other | 4 | £578k | 0.1% | 2020-08-31 |
| Islington CouncilNew | Other | 1 | £405k | 0.1% | 2024-10-04 |
| DERBY CITY COUNCIL | Other | 1 | £373k | 0.0% | 2017-11-28 |
| Barnet and Southgate College | Other | 1 | £340k | 0.0% | 2020-01-30 |
| Staffordshire County Council | Other | 9 | £286k | 0.0% | 2025-11-19 |
| Walsall Council e-Tendering | Other | 2 | £250k | 0.0% | 2024-08-19 |
| Rotherham MBC | Other | 1 | £238k | 0.0% | 2017-02-21 |
| Knowsley Council | Other | 1 | £226k | 0.0% | 2016-07-07 |
| London Borough of Southwark | Other | 1 | £220k | 0.0% | 2019-05-28 |
| Health Education England | Other | 2 | £212k | 0.0% | 2022-12-13 |
| Worcestershire County CouncilNew | Other | 1 | £88k | 0.0% | 2024-08-31 |
| Bristol City Council | Other | 2 | £78k | 0.0% | 2018-03-29 |
| Barnsley Metropolitan Borough Council | Other | 6 | £55k | 0.0% | 2019-03-29 |
| Somerset County Council | Other | 1 | £45k | 0.0% | 2020-08-24 |
| TAMESIDE METROPOLITAN BOROUGH COUNCILNew | Other | 2 | £0k | 0.0% | 2025-11-07 |
| Norfolk County CouncilNew | Other | 7 | £0k | 0.0% | 2025-09-28 |
| Southampton City CouncilNew | Other | 2 | £0k | 0.0% | 2024-11-04 |
| Milton Keynes Council | Other | 1 | £0k | 0.0% | 2023-05-26 |
| Coventry - Solihull - Warwickshire | Other | 1 | £0k | 0.0% | 2020-06-22 |
| Suffolk Sourcing | Other | 2 | £0k | 0.0% | 2018-12-14 |
| NORTH TYNESIDE COUNCIL | Other | 1 | £0k | 0.0% | 2017-04-10 |
| London Borough of Redbridge | Other | 2 | £0k | 0.0% | |
| Peterborough City Council | Other | 3 | £0k | 0.0% | |
| Bedford Borough Council | Other | 2 | £0k | 0.0% | |
| Denbighshire County Council | Other | 1 | £0k | 0.0% | |
| Manchester City Council | Other | 1 | £0k | 0.0% | |
| Hertfordshire County Council | Other | 1 | £0k | 0.0% | |
| London Borough of Merton | Other | 3 | £0k | 0.0% | |
| North Yorkshire County Council | Other | 3 | £0k | 0.0% | |
| Oxfordshire County Council | Other | 1 | £0k | 0.0% | |
| Stockton on Tees Borough Council | Other | 1 | £0k | 0.0% | |
| Warwickshire County Council | Other | 1 | £0k | 0.0% | |
| Brighton and Hove City Council | Other | 1 | £0k | 0.0% | |
| Procurement and Logistics Service | Other | 1 | £0k | 0.0% | |
| West Northamptonshire Council | Other | 1 | £0k | 0.0% | |
| NHS Humber and North Yorkshire ICB | Other | 1 | £0k | 0.0% | |
| Cyngor Sir Ceredigion County Council | Other | 1 | £0k | 0.0% | |
| Liverpool City Council | Other | 1 | £0k | 0.0% | |