| Crown Commercial Service | Other | 5 | £41m | 62.9% | 2022-10-07 |
| Department for International Trade | Other | 6 | £3m | 4.8% | 2023-03-24 |
| Department for Work & Pensions | Other | 4 | £3m | 4.4% | 2021-03-29 |
| Ministry of Defence | Other | 4 | £3m | 4.0% | 2023-11-18 |
| H M REVENUE & CUSTOMS | Other | 1 | £2m | 2.9% | 2024-01-25 |
| Department for Environment Food & Rural Affairs | Other | 2 | £2m | 2.5% | 2025-03-13 |
| DEFRA | Other | 10 | £2m | 2.4% | 2023-06-13 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 7 | £1m | 1.9% | 2025-08-26 |
| Business Energy and Industrial Strategy | Other | 5 | £1m | 1.6% | 2022-07-14 |
| Department for Culture, Media and Sport | Other | 5 | £867k | 1.3% | 2025-04-24 |
| Environment AgencyNew | Other | 1 | £713k | 1.1% | 2024-11-11 |
| Cabinet Office | Other | 3 | £703k | 1.1% | 2024-09-16 |
| Defence Digital (ISG) | Other | 1 | £564k | 0.9% | 2022-11-11 |
| Home Office | Other | 2 | £492k | 0.8% | 2024-07-26 |
| Hampshire County Council | Other | 2 | £487k | 0.7% | 2026-02-20 |
| DEPARTMENT FOR LEVELLING UP, HOUSING AND COMMUNITIES | Other | 1 | £423k | 0.7% | 2023-04-27 |
| ICS on behalf of DSIT and DESNZNew | Other | 5 | £354k | 0.5% | 2026-03-31 |
| HM Revenue & Customs | Other | 1 | £307k | 0.5% | 2020-04-03 |
| 7 Forces Commercial Services | Other | 1 | £267k | 0.4% | 2022-01-05 |
| ATAMIS LTD | Other | 1 | £240k | 0.4% | 2020-08-03 |
| Department for Business, Energy & Industrial Strategy | Other | 2 | £235k | 0.4% | 2023-03-31 |
| HM TreasuryNew | Other | 1 | £234k | 0.4% | 2024-09-23 |
| Financial Conduct AuthorityNew | Other | 1 | £204k | 0.3% | 2025-02-24 |
| Bedfordshire Police | Other | 1 | £199k | 0.3% | 2016-09-06 |
| Department for Energy Security & Net Zero | Other | 1 | £175k | 0.3% | 2024-03-28 |
| Lancashire Constabulary | Other | 1 | £168k | 0.3% | 2022-03-24 |
| North Lincolnshire Council | Other | 3 | £165k | 0.3% | 2024-01-29 |
| Natural England | Other | 2 | £150k | 0.2% | 2023-10-25 |
| Transport for London | Other | 1 | £150k | 0.2% | 2017-12-22 |
| O F G E M | Other | 1 | £135k | 0.2% | 2023-02-02 |
| Foreign Commonwealth and Development Office | Other | 1 | £128k | 0.2% | 2019-03-28 |
| National Highways LimitedNew | Other | 1 | £120k | 0.2% | 2026-01-19 |
| Herefordshire Council | Other | 2 | £114k | 0.2% | 2026-05-01 |
| South Yorkshire PoliceNew | Other | 1 | £112k | 0.2% | 2026-03-28 |
| OfgemNew | Other | 1 | £86k | 0.1% | 2026-02-02 |
| Post Office Limited | Other | 1 | £83k | 0.1% | 2024-05-24 |
| MCA - Maritime and Coastguard AgencyNew | Other | 1 | £68k | 0.1% | 2026-03-01 |
| Companies HouseNew | Other | 1 | £60k | 0.1% | 2024-08-12 |
| Uttlesford District CouncilNew | Other | 1 | £55k | 0.1% | 2025-07-01 |
| The Insolvency ServiceNew | Other | 1 | £53k | 0.1% | 2025-03-10 |
| Guildford Borough CouncilNew | Other | 1 | £47k | 0.1% | 2024-05-29 |
| Food Standards Agency | Other | 1 | £32k | 0.0% | 2023-03-07 |
| MARINE MANAGEMENT ORGANISATION (Defra Network eTendering Portal) | Other | 1 | £0k | 0.0% | |
| Scottish Government | Other | 1 | £0k | 0.0% | |
| The Mayor and Commonalty and Citizens of the City of London | Other | 1 | £0k | 0.0% | |
| Oxford City Council | Other | 1 | £0k | 0.0% | |