| Department for Culture, Media and Sport | Other | 3 | £75m | 33.4% | 2021-09-28 |
| EFFICIENCY EAST MIDLANDS LIMITEDNew | Other | 1 | £50m | 22.3% | 2026-03-09 |
| Espo | Other | 25 | £33m | 14.6% | 2024-01-31 |
| Government Commercial AgencyNew | Other | 1 | £16m | 7.1% | 2025-12-15 |
| National Highways | Other | 20 | £14m | 6.4% | 2025-11-19 |
| Department for Education | Other | 7 | £7m | 3.1% | 2024-11-11 |
| Ministry of Defence | Other | 8 | £6m | 2.6% | 2025-12-18 |
| Surrey County Council | Other | 4 | £4m | 1.8% | 2022-03-02 |
| CTM Portal for the NDA Shared Services Alliance | Other | 1 | £3m | 1.3% | 2021-06-22 |
| Homes England (the name adopted by the Homes and Communities Agency) | Other | 3 | £2m | 0.9% | 2024-05-13 |
| LHC | Other | 1 | £2m | 0.7% | 2019-02-12 |
| Basingstoke and Deane Borough Council | Other | 1 | £2m | 0.7% | 2022-08-17 |
| Wolverhampton City CouncilNew | Other | 3 | £1m | 0.5% | 2025-03-19 |
| The Association of North East Councils Limited | Other | 2 | £1m | 0.4% | 2022-11-29 |
| Walsall Council e-Tendering | Other | 1 | £1m | 0.4% | 2020-04-06 |
| DERBY CITY COUNCIL | Other | 10 | £968k | 0.4% | 2022-04-01 |
| Highways Agency | Other | 1 | £900k | 0.4% | 2017-09-26 |
| London Borough Of Hillingdon - Adult Social Care | Other | 1 | £892k | 0.4% | 2016-06-07 |
| University of Leeds | Other | 10 | £834k | 0.4% | 2019-07-26 |
| UNIVERSITY OF SOUTHAMPTON | Other | 1 | £784k | 0.3% | 2018-09-24 |
| THE UNIVERSITY OF BIRMINGHAM | Other | 3 | £572k | 0.3% | 2017-08-09 |
| Tower Hamlets | Other | 1 | £530k | 0.2% | 2019-04-02 |
| Radioactive Waste Management Limited | Other | 12 | £523k | 0.2% | 2019-03-25 |
| Kent County Council | Other | 1 | £500k | 0.2% | 2023-07-04 |
| National Highways LimitedNew | Other | 4 | £433k | 0.2% | 2026-04-24 |
| West Hertfordshire Teaching Hospitals NHS Trust | Other | 2 | £205k | 0.1% | 2024-03-26 |
| Oxfordshire County Council | Other | 1 | £190k | 0.1% | 2023-09-18 |
| NATIONAL NUCLEAR LABORATORY LIMITED | Other | 1 | £182k | 0.1% | 2018-10-01 |
| Bromsgrove District Council | Other | 1 | £157k | 0.1% | 2022-09-18 |
| Leicester City Council | Other | 2 | £154k | 0.1% | 2023-09-14 |
| West Midlands Combined Authority | Other | 3 | £152k | 0.1% | 2023-10-24 |
| Greater Manchester Combined Authority - GMPNew | Other | 1 | £95k | 0.0% | 2025-01-01 |
| Warwickshire County Council | Other | 1 | £60k | 0.0% | 2022-12-19 |
| Department for Energy Security & Net ZeroNew | Other | 1 | £50k | 0.0% | 2024-11-01 |
| East Sussex County Council | Other | 1 | £50k | 0.0% | 2022-07-22 |
| Erewash Borough Council | Other | 1 | £40k | 0.0% | 2022-03-31 |
| Tees Valley Combined Authority | Other | 1 | £37k | 0.0% | 2019-09-09 |
| Sport England | Other | 1 | £30k | 0.0% | 2022-12-12 |
| Competition and Markets Authority | Other | 1 | £21k | 0.0% | 2020-11-24 |
| Barnsley, Doncaster, Rotherham and Sheffield Combined Authority | Other | 1 | £20k | 0.0% | 2020-03-06 |
| United Kingdom Atomic Energy Authority | Other | 1 | £0k | 0.0% | 2020-12-02 |
| Canal & River Trust | Other | 1 | £0k | 0.0% | |
| MIDLAND HEART LIMITED | Other | 1 | £0k | 0.0% | |
| Transport for London | Other | 1 | £0k | 0.0% | |
| Stevenage Borough Council | Other | 4 | £0k | 0.0% | |
| Natural Resources Wales | Other | 1 | £0k | 0.0% | |
| NORTHUMBRIAN WATER LIMITED | Other | 1 | £0k | 0.0% | |