| Ministry of Defence | Other | 38 | £100m | 37.6% | 2026-02-10 |
| Ministry of Defence, DSTL, Defence Science & Technology Laboratory (DSTL) | Other | 1 | £50m | 18.7% | 2019-07-08 |
| Defence Science and Technology Laboratory | Other | 30 | £19m | 7.2% | 2023-09-01 |
| UK Atomic Energy AuthorityNew | Other | 4 | £18m | 6.8% | 2025-10-21 |
| National Highways | Other | 6 | £16m | 6.0% | 2025-01-31 |
| N H S Shared Business Services | Other | 2 | £15m | 5.7% | 2024-04-26 |
| National Highways Limited | Other | 4 | £10m | 3.8% | 2025-12-09 |
| Department for Energy Security & Net Zero | Other | 12 | £7m | 2.5% | 2025-11-27 |
| EFFICIENCY EAST MIDLANDS LIMITED | Other | 1 | £5m | 1.8% | 2019-12-16 |
| The Department for Business, Energy and Industrial Strategy (BEIS) | Other | 2 | £4m | 1.4% | 2018-03-28 |
| Business Energy and Industrial Strategy | Other | 8 | £3m | 1.1% | 2023-11-10 |
| United Kingdom Atomic Energy Authority | Other | 16 | £3m | 1.1% | 2024-07-25 |
| Health and Safety Executive | Other | 22 | £3m | 1.0% | 2020-10-30 |
| UK POWER NETWORKS (OPERATIONS) LIMITEDNew | Other | 2 | £1m | 0.4% | 2026-03-02 |
| NUCLEAR DECOMMISSIONING AUTHORITY | Other | 4 | £995k | 0.4% | 2025-03-24 |
| Ofgem | Other | 11 | £959k | 0.4% | 2022-09-01 |
| Met Office | Other | 2 | £957k | 0.4% | 2024-09-16 |
| Radioactive Waste Management Limited | Other | 5 | £860k | 0.3% | 2021-11-09 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 9 | £772k | 0.3% | 2025-07-14 |
| Defence Equipment and Support | Other | 4 | £641k | 0.2% | 2019-12-03 |
| CTM Portal for the NDA Shared Services Alliance | Other | 4 | £591k | 0.2% | 2021-12-23 |
| United Lincolnshire Hospitals NHS Trust | Other | 1 | £556k | 0.2% | 2023-06-30 |
| Home OfficeNew | Other | 1 | £525k | 0.2% | 2024-07-12 |
| Department for Business, Energy & Industrial Strategy | Other | 3 | £510k | 0.2% | 2023-04-27 |
| Ministry of Defence, Air Commercial | Other | 1 | £494k | 0.2% | 2020-10-12 |
| MCA - Maritime and Coastguard Agency | Other | 3 | £489k | 0.2% | 2026-03-24 |
| UK SBSNew | Other | 2 | £402k | 0.2% | 2026-01-08 |
| Department for Work & Pensions | Other | 4 | £353k | 0.1% | 2015-12-16 |
| Department for Culture, Media and Sport | Other | 2 | £340k | 0.1% | 2023-11-14 |
| Connected Places Catapult | Other | 2 | £300k | 0.1% | 2022-05-30 |
| Department for Science, Innovation & TechnologyNew | Other | 3 | £245k | 0.1% | 2026-01-27 |
| UNIVERSITY OF SHEFFIELD | Other | 3 | £200k | 0.1% | 2023-04-05 |
| The Oil & Pipelines Agency | Other | 1 | £200k | 0.1% | 2016-10-03 |
| NATIONAL NUCLEAR LABORATORY LIMITED | Other | 1 | £182k | 0.1% | 2018-10-01 |
| UK RESEARCH & INNOVATION | Other | 2 | £176k | 0.1% | 2024-03-06 |
| Maritime & Coastguard Agency | Other | 1 | £170k | 0.1% | 2018-11-19 |
| Highways Agency | Other | 1 | £162k | 0.1% | 2017-05-14 |
| Department for Transport | Other | 2 | £160k | 0.1% | 2022-02-14 |
| ENERGY SYSTEMS CATAPULT | Other | 1 | £158k | 0.1% | 2019-06-24 |
| Department for International TradeNew | Other | 1 | £150k | 0.1% | 2024-12-05 |
| Offshore Renewable Energy Catapult | Other | 4 | £125k | 0.0% | 2023-02-23 |
| Office of Rail and Road | Other | 4 | £122k | 0.0% | 2022-09-28 |
| Frazer-Nash Consultancy Ltd | Other | 1 | £120k | 0.0% | 2023-02-27 |
| UNIVERSITY OF DERBY | Other | 1 | £100k | 0.0% | 2019-02-06 |
| DfTc - Department for Transport | Other | 2 | £98k | 0.0% | 2024-01-08 |
| UNIVERSITY OF GLOUCESTERSHIRE | Other | 1 | £85k | 0.0% | 2016-08-17 |
| Crown Commercial Service | Other | 2 | £79k | 0.0% | 2022-02-28 |
| Cabinet Office | Other | 1 | £78k | 0.0% | 2020-06-03 |
| National Infrastructure Commission : HM Treasury | Other | 1 | £70k | 0.0% | 2021-07-22 |
| International Nuclear Services LimitedNew | Other | 3 | £70k | 0.0% | 2025-12-09 |
| National Audit Office | Other | 2 | £64k | 0.0% | 2024-01-25 |
| Teesside University | Other | 1 | £58k | 0.0% | 2019-12-10 |
| Department of Health & Social CareNew | Other | 1 | £50k | 0.0% | 2026-03-23 |
| National Institute for Health and Care ExcellenceNew | Other | 1 | £50k | 0.0% | 2026-01-15 |
| Oil and Pipelines Agency | Other | 3 | £49k | 0.0% | 2021-10-06 |
| DIO, Defence Infrastructure Organisation | Other | 1 | £48k | 0.0% | 2019-02-28 |
| DEFRA | Other | 1 | £39k | 0.0% | 2020-02-27 |
| SATELLITE APPLICATIONS CATAPULT | Other | 1 | £38k | 0.0% | 2022-12-23 |
| ROYAL AIR FORCE | Other | 1 | £38k | 0.0% | 2017-05-02 |
| Medicines and Healthcare Products Regulatory Agency | Other | 1 | £30k | 0.0% | 2023-08-23 |
| HS2 | Other | 1 | £24k | 0.0% | 2017-04-21 |
| TRINITY HOUSE | Other | 1 | £24k | 0.0% | 2018-08-30 |
| International Nuclear ServicesNew | Other | 1 | £14k | 0.0% | 2025-06-12 |
| The Department for Business, Energy and Industrial Strategy | Other | 2 | £11k | 0.0% | 2019-12-19 |
| HISTORIC ENGLAND LIMITED | Other | 1 | £10k | 0.0% | 2022-12-09 |
| TranslinkNew | Other | 1 | £0k | 0.0% | 2026-03-26 |
| West Midlands Combined Authority | Other | 2 | £0k | 0.0% | 2021-03-16 |
| SSE plc | Other | 1 | £0k | 0.0% | |
| DESNZ & DSIT Group Commercial | Other | 2 | £0k | 0.0% | |
| Mid and South Essex NHS Foundation Trust | Other | 3 | £0k | 0.0% | |
| NHS LINCOLNSHIRE INTEGRATED CARE BOARD | Other | 1 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 4 | £0k | 0.0% | |
| Strathclyde Partnership for Transport | Other | 4 | £0k | 0.0% | |
| International Nuclear Services Ltd | Other | 4 | £0k | 0.0% | |
| KBS MARITIME LIMITED | Other | 1 | £0k | 0.0% | |
| Tees Valley Combined Authority | Other | 1 | £0k | 0.0% | |
| Nuclear Waste Services Limited | Other | 1 | £0k | 0.0% | |
| Department for Environment Food & Rural Affairs | Other | 1 | £0k | 0.0% | |