| Crown Commercial Service | Other | 9 | £38m | 44.6% | 2022-06-29 |
| Home Office | Other | 2 | £14m | 16.5% | 2023-12-19 |
| Espo | Other | 2 | £7m | 7.8% | 2019-06-25 |
| London Fire And Emergency Planning Authority | Other | 1 | £4m | 5.2% | 2018-02-22 |
| Government Commercial Agency | Other | 1 | £3m | 3.4% | 2023-09-14 |
| Maritime & Coastguard Agency | Other | 2 | £2m | 2.5% | 2018-07-23 |
| THE DRIVER & VEHICLE STANDARDS AGENCY | Other | 1 | £2m | 2.2% | 2019-05-30 |
| Ministry of Justice | Other | 2 | £2m | 2.1% | 2021-08-16 |
| Leicestershire County Council | Other | 2 | £1m | 1.6% | 2020-03-31 |
| Department for Education | Other | 2 | £1m | 1.4% | 2022-02-08 |
| Procurement Lincolnshire | Other | 1 | £1m | 1.2% | 2017-02-23 |
| National Audit Office | Other | 2 | £885k | 1.0% | 2022-09-20 |
| Financial Conduct Authority | Other | 1 | £786k | 0.9% | 2020-06-17 |
| Bristol City Council | Other | 1 | £724k | 0.9% | 2021-01-20 |
| Suffolk County Council | Other | 1 | £672k | 0.8% | 2015-09-14 |
| DVSA - Driver and Vehicle Standards Agency | Other | 2 | £608k | 0.7% | 2023-08-25 |
| Sanctuary Housing Association | Other | 1 | £600k | 0.7% | 2019-05-01 |
| Dorset Council | Other | 2 | £564k | 0.7% | 2022-04-26 |
| HER MAJESTYS LAND REGISTRY | Other | 1 | £555k | 0.7% | 2017-08-31 |
| Occupational Health Services | Other | 1 | £500k | 0.6% | 2017-08-11 |
| Tower Hamlets | Other | 1 | £452k | 0.5% | 2018-04-27 |
| NHS England | Other | 3 | £324k | 0.4% | 2022-11-30 |
| Government Legal Department | Other | 3 | £315k | 0.4% | 2022-12-22 |
| Department for International Trade | Other | 1 | £263k | 0.3% | 2017-11-02 |
| Ministry of Defence, C&C, Defence Medical Services (DMS) | Other | 1 | £259k | 0.3% | 2016-11-21 |
| CPS | Other | 1 | £240k | 0.3% | 2014-12-01 |
| Department for Transport | Other | 1 | £234k | 0.3% | 2019-03-11 |
| North Northamptonshire Council | Other | 2 | £230k | 0.3% | 2024-05-01 |
| West Northamptonshire Council | Other | 2 | £200k | 0.2% | 2024-08-12 |
| Food Standards Agency | Other | 1 | £200k | 0.2% | 2022-09-01 |
| Somerset County Council | Other | 1 | £166k | 0.2% | 2022-05-31 |
| NHS SOUTH, CENTRAL AND WEST COMMISSIONING SUPPORT UNIT | Other | 1 | £160k | 0.2% | 2023-05-09 |
| London Borough of Hackney | Other | 1 | £156k | 0.2% | 2019-10-28 |
| National Highways Limited | Other | 2 | £140k | 0.2% | 2021-06-30 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 1 | £116k | 0.1% | 2020-03-04 |
| London Borough of Sutton | Other | 3 | £98k | 0.1% | 2018-01-31 |
| National Highways | Other | 1 | £71k | 0.1% | 2020-01-09 |
| Coventry - Solihull - Warwickshire | Other | 1 | £60k | 0.1% | 2019-05-09 |
| The National Archives | Other | 2 | £56k | 0.1% | 2021-12-20 |
| Competition and Markets Authority | Other | 1 | £40k | 0.0% | 2020-03-31 |
| MCA - Maritime and Coastguard Agency | Other | 1 | £28k | 0.0% | 2021-09-30 |
| General Medical Council (GMC) | Other | 1 | £20k | 0.0% | 2015-07-27 |
| HM Land Registry | Other | 1 | £17k | 0.0% | 2015-11-09 |
| Harborough District Council | Other | 1 | £12k | 0.0% | 2020-07-01 |
| NOE CPC | Other | 1 | £0k | 0.0% | 2020-12-23 |
| UNIVERSITY OF LANCASTER | Other | 1 | £0k | 0.0% | 2019-07-30 |
| Nursing And Midwifery Council | Other | 1 | £0k | 0.0% | 2018-06-19 |
| Disclosure and Barring Service | Other | 1 | £0k | 0.0% | 2017-10-03 |
| Department of Health and Social Care (DHSC) | Other | 1 | £0k | 0.0% | 2016-02-29 |
| London Fire Commissioner | Other | 1 | £0k | 0.0% | |
| Driver and Vehicle Standards Agency (DVSA) | Other | 1 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 3 | £0k | 0.0% | |
| YPO | Other | 1 | £0k | 0.0% | |
| Kent County Council (t/a KCS) | Other | 1 | £0k | 0.0% | |