| Burnley College | Other | 1 | £19m | 31.1% | 2020-03-09 |
| Cambridgeshire County Council | Other | 4 | £8m | 14.1% | 2026-03-27 |
| Fusion21 Members Consortium | Other | 2 | £5m | 9.1% | 2023-05-16 |
| LGSS | Other | 8 | £4m | 6.9% | 2021-12-11 |
| General Medical Council (GMC) | Other | 4 | £3m | 4.5% | 2018-05-23 |
| West Hertfordshire Hospitals NHS Trust | Other | 4 | £2m | 3.8% | 2024-02-21 |
| LGSS on behalf of Cambridgeshire County Council | Other | 1 | £2m | 3.3% | 2018-03-13 |
| Thurrock Council | Other | 1 | £2m | 3.2% | 2016-03-30 |
| The Queen Elizabeth Hospital King's Lynn NHS Foundation Trust | Other | 6 | £2m | 3.0% | 2023-07-21 |
| Hertfordshire Community NHS Trust | Other | 4 | £1m | 2.5% | 2025-11-28 |
| The Hillingdon Hospitals NHS Foundation TrustNew | Other | 1 | £1m | 2.2% | 2025-11-04 |
| Hertfordshire NHS Procurement | Other | 6 | £1m | 2.1% | 2021-02-05 |
| NHS Blood and Transplant (NHSBT)New | Other | 2 | £1m | 1.8% | 2026-03-17 |
| Milton Keynes Council Enhancement of day care services | Other | 1 | £1m | 1.7% | 2018-08-22 |
| East and North Hertfordshire NHS TrustNew | Other | 1 | £850k | 1.4% | 2025-06-04 |
| East Kent Hospitals University | Other | 1 | £750k | 1.3% | 2017-10-30 |
| Imperial War MuseumsNew | Other | 1 | £699k | 1.2% | 2026-01-05 |
| Lee Valley Regional Park Authority | Other | 5 | £668k | 1.1% | 2024-10-22 |
| Essex Police, Fire and Crime Commissioner Fire and Rescue AuthorityNew | Other | 1 | £520k | 0.9% | 2025-12-16 |
| East and North Hertfordshire Teaching NHS TrustNew | Other | 1 | £415k | 0.7% | 2026-03-03 |
| Milton Keynes Council | Other | 2 | £389k | 0.6% | 2020-05-12 |
| Partners Procurement Service (PPS)New | Other | 1 | £346k | 0.6% | 2025-10-14 |
| London Borough of Hackney | Other | 3 | £247k | 0.4% | 2024-05-20 |
| East & North Hertfordshire NHS TrustNew | Other | 4 | £233k | 0.4% | 2025-08-20 |
| oneSource | Other | 2 | £233k | 0.4% | 2018-10-29 |
| London Borough of Enfield | Other | 1 | £213k | 0.4% | 2021-06-17 |
| Tower Hamlets | Other | 1 | £200k | 0.3% | 2016-02-22 |
| The Hertfordshire Partnership University NHS Foundation Trust | Other | 3 | £195k | 0.3% | 2025-10-01 |
| South Cambridgeshire District Council | Other | 1 | £157k | 0.3% | 2021-10-07 |
| Southend-on-sea Borough Council | Other | 1 | £148k | 0.2% | 2016-07-13 |
| MID ESSEX HOSPITAL SERVICES N H S TRUST | Other | 1 | £80k | 0.1% | 2016-06-14 |
| South London and Maudsley | Other | 2 | £44k | 0.1% | 2016-03-18 |
| Colchester City Council | Other | 1 | £41k | 0.1% | 2016-04-15 |
| Cafcass | Other | 1 | £12k | 0.0% | 2015-12-08 |
| Medicines and Healthcare Products Regulatory AgencyNew | Other | 1 | £0k | 0.0% | 2025-08-07 |
| Surrey and Borders Partnership NHS Foundation Trust | Other | 1 | £0k | 0.0% | 2018-11-16 |
| Anglia Ruskin University | Other | 1 | £0k | 0.0% | 2017-03-24 |
| THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE | Other | 2 | £0k | 0.0% | |
| Queen Victoria Hospital NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| Red Kite Learning Trust | Other | 1 | £0k | 0.0% | |