| DEFRA | Other | 2 | £3m | 28.7% | 2022-01-24 |
| London Borough of HackneyNew | Other | 2 | £790k | 7.8% | 2026-02-02 |
| Wolverhampton City Council | Other | 2 | £775k | 7.7% | 2022-03-28 |
| General Pharmaceutical CouncilNew | Other | 2 | £608k | 6.0% | 2025-04-04 |
| Royal Borough of Kingston Upon ThamesNew | Other | 1 | £404k | 4.0% | 2024-10-10 |
| Sheffield City CouncilNew | Other | 1 | £360k | 3.6% | 2025-07-23 |
| Southwark Council | Other | 1 | £326k | 3.2% | 2023-10-17 |
| Health Research Authority | Other | 4 | £318k | 3.2% | 2024-11-27 |
| Ministry of Defence | Other | 3 | £313k | 3.1% | 2025-12-16 |
| West Sussex County CouncilNew | Other | 1 | £250k | 2.5% | 2025-03-14 |
| Home Office | Other | 1 | £200k | 2.0% | 2022-03-14 |
| West Lindsey District Council | Other | 2 | £185k | 1.8% | 2025-09-23 |
| National Citizen Service | Other | 1 | £150k | 1.5% | 2020-06-30 |
| London Borough of MertonNew | Other | 1 | £145k | 1.4% | 2024-10-09 |
| Erewash Borough CouncilNew | Other | 2 | £130k | 1.3% | 2024-08-01 |
| Department of Health and Social Care (DHSC) | Other | 2 | £113k | 1.1% | 2023-02-07 |
| Competition and Markets AuthorityNew | Other | 1 | £108k | 1.1% | 2025-05-16 |
| London Borough of Southwark | Other | 1 | £105k | 1.0% | 2021-10-20 |
| Department for Science, Innovation & TechnologyNew | Other | 1 | £100k | 1.0% | 2024-11-08 |
| HM Treasury | Other | 1 | £100k | 1.0% | 2021-03-18 |
| Restoration & Renewal Delivery Authority Ltd | Other | 1 | £94k | 0.9% | 2024-01-05 |
| Royal ArmouriesNew | Other | 1 | £89k | 0.9% | 2024-08-21 |
| Westminster City CouncilNew | Other | 1 | £88k | 0.9% | 2024-10-15 |
| City of London Corporation | Other | 1 | £88k | 0.9% | 2020-02-14 |
| Ministry of Housing, Communities & Local Government | Other | 1 | £86k | 0.9% | 2018-12-07 |
| South Staffordshire District CouncilNew | Other | 1 | £85k | 0.8% | 2025-10-17 |
| Cabinet Office | Other | 2 | £75k | 0.7% | 2021-03-22 |
| South Kesteven District Council | Other | 1 | £72k | 0.7% | 2022-08-22 |
| Manchester City Council | Other | 1 | £70k | 0.7% | 2021-01-27 |
| London Borough of Newham | Other | 1 | £70k | 0.7% | 2023-01-24 |
| Department of Health & Social Care | Other | 3 | £66k | 0.7% | 2022-02-15 |
| Essex County CouncilNew | Other | 1 | £66k | 0.7% | 2024-10-01 |
| Advance Northumberland Limited | Other | 1 | £60k | 0.6% | 2020-04-14 |
| Leicester City CouncilNew | Other | 1 | £54k | 0.5% | 2026-02-20 |
| H M REVENUE & CUSTOMS | Other | 1 | £50k | 0.5% | 2023-12-05 |
| Leeds City Council | Other | 1 | £50k | 0.5% | 2020-03-03 |
| Department of Health & Social Care | Other | 3 | £46k | 0.5% | 2019-02-18 |
| Devon & Somerset Fire & Rescue Service | Other | 1 | £44k | 0.4% | 2020-10-12 |
| Stockport Metropolitan Borough Council | Other | 1 | £44k | 0.4% | 2020-03-23 |
| National Museums Liverpool | Other | 1 | £42k | 0.4% | 2019-06-24 |
| capitalEsourcing | Other | 1 | £42k | 0.4% | 2019-08-14 |
| ASTON UNIVERSITY | Other | 1 | £40k | 0.4% | 2020-02-10 |
| STAR PROCUREMENT LIMITED | Other | 1 | £40k | 0.4% | 2022-08-09 |
| Natural England | Other | 1 | £36k | 0.4% | 2024-03-19 |
| THE WESTMINSTER FOUNDATION FOR DEMOCRACY LIMITED | Other | 1 | £30k | 0.3% | 2022-09-21 |
| Medicines and Healthcare Products Regulatory Agency | Other | 1 | £28k | 0.3% | 2022-02-07 |
| Ofsted | Other | 2 | £27k | 0.3% | 2024-02-12 |
| The Education and Training Foundation | Other | 1 | £24k | 0.2% | 2016-06-27 |
| The Water Services Regulation Authority | Other | 1 | £23k | 0.2% | 2017-11-30 |
| Northern Lighthouse Board | Other | 1 | £22k | 0.2% | 2023-11-14 |
| Sandwell Metropolitan Borough Council | Other | 1 | £20k | 0.2% | 2022-03-23 |
| INSTITUTE FOR APPRENTICESHIPS | Other | 1 | £14k | 0.1% | 2019-03-03 |
| ENERGY SYSTEMS CATAPULT | Other | 1 | £10k | 0.1% | 2019-01-31 |
| West Yorkshire Fire & Rescue | Other | 1 | £0k | 0.0% | 2021-02-15 |
| Sheffield Health and Social Care NHS Foundation Trust | Other | 1 | £0k | 0.0% | 2020-12-20 |
| East Lothian Council | Other | 1 | £0k | 0.0% | |
| Middlesex University | Other | 1 | £0k | 0.0% | |
| East London NHS Foundation Trust | Other | 1 | £0k | 0.0% | |