| Imperial War MuseumNew | Other | 4 | £45m | 16.0% | 2026-03-24 |
| Espo | Other | 8 | £30m | 10.7% | 2024-01-31 |
| Crown Commercial Service | Other | 2 | £30m | 10.7% | 2024-04-17 |
| Central Housing Investment Consortium Limited ("CHIC") | Other | 2 | £27m | 9.7% | 2021-03-16 |
| Ministry of Defence | Other | 21 | £25m | 9.0% | 2025-05-08 |
| Homes England | Other | 3 | £20m | 7.1% | 2026-05-11 |
| PROCURE PLUS HOLDINGS LIMITED | Other | 8 | £18m | 6.2% | 2022-05-20 |
| Homes England (the name adopted by the Homes and Communities Agency) | Other | 52 | £16m | 5.5% | 2026-04-23 |
| Fusion21 Members Consortium | Other | 18 | £10m | 3.7% | 2025-09-02 |
| UK Health Security AgencyNew | Other | 2 | £9m | 3.3% | 2026-01-23 |
| FCDO Services | Other | 97 | £6m | 2.2% | 2026-01-09 |
| DEFRA | Other | 12 | £6m | 2.1% | 2026-05-11 |
| DERBY CITY COUNCIL | Other | 11 | £5m | 1.6% | 2026-03-17 |
| H M REVENUE & CUSTOMS | Other | 1 | £4m | 1.2% | 2022-06-13 |
| Foreign Commonwealth and Development Office | Other | 26 | £3m | 0.9% | 2025-12-01 |
| Hertfordshire County CouncilNew | Other | 2 | £3m | 0.9% | 2025-11-03 |
| The Crown EstateNew | Other | 2 | £3m | 0.9% | 2025-10-17 |
| Cumbria County Council | Other | 12 | £2m | 0.8% | 2023-03-06 |
| Ministry of Housing, Communities & Local Government | Other | 1 | £2m | 0.7% | 2023-03-09 |
| N H S Shared Business ServicesNew | Other | 1 | £2m | 0.7% | 2025-01-06 |
| Environment Agency | Other | 5 | £2m | 0.6% | 2025-09-26 |
| Manchester City CouncilNew | Other | 2 | £1m | 0.5% | 2025-06-27 |
| Staffordshire County Council | Other | 1 | £1m | 0.5% | 2022-04-04 |
| Newry, Mourne and Down District Council (NMD) New | Other | 1 | £1m | 0.4% | 2024-09-23 |
| National Highways | Other | 10 | £883k | 0.3% | 2025-09-15 |
| Basingstoke and Deane Borough Council | Other | 4 | £867k | 0.3% | 2023-07-28 |
| South East Consortium | Other | 2 | £693k | 0.2% | 2021-01-18 |
| National Highways Limited | Other | 8 | £593k | 0.2% | 2026-04-30 |
| Westminster City CouncilNew | Other | 1 | £500k | 0.2% | 2025-07-01 |
| Government Property Agency : Cabinet Office | Other | 1 | £500k | 0.2% | 2021-06-01 |
| Notting Hill Genesis | Other | 2 | £458k | 0.2% | 2022-06-09 |
| Cyngor Bwrdeistref Sirol Merthyr Tudful Merthyr Tydfil County Borough CouncilNew | Other | 1 | £457k | 0.2% | 2025-12-24 |
| Rotherham Metropolitan Borough Council | Other | 1 | £439k | 0.2% | 2021-08-23 |
| Cumberland Council | Other | 4 | £432k | 0.2% | 2024-11-27 |
| HCC - Resources | Other | 1 | £420k | 0.1% | 2021-08-24 |
| Surrey PoliceNew | Other | 1 | £417k | 0.1% | 2024-10-14 |
| LLW REPOSITORY LIMITED TRADING AS NUCLEAR WASTE SERVICES | Other | 1 | £399k | 0.1% | 2023-03-29 |
| Leicester City Council | Other | 2 | £368k | 0.1% | 2026-02-06 |
| JV North LimitedNew | Other | 2 | £364k | 0.1% | 2025-08-20 |
| NUCLEAR DECOMMISSIONING AUTHORITYNew | Other | 1 | £250k | 0.1% | 2025-01-09 |
| Nuclear Restoration LimitedNew | Other | 1 | £250k | 0.1% | 2024-07-05 |
| Peabody Trust | Other | 4 | £240k | 0.1% | 2021-01-06 |
| GOVERNMENT PROPERTY AGENCYNew | Other | 1 | £239k | 0.1% | 2025-07-15 |
| Sport England | Other | 4 | £235k | 0.1% | 2021-04-16 |
| capitalEsourcing | Other | 2 | £206k | 0.1% | 2024-03-18 |
| Guildford Borough Council | Other | 1 | £177k | 0.1% | 2022-06-28 |
| Maidstone Borough CouncilNew | Other | 1 | £135k | 0.0% | 2026-04-02 |
| Hampshire County Council | Other | 8 | £135k | 0.0% | 2024-09-16 |
| Department for Work & Pensions | Other | 1 | £130k | 0.0% | 2022-12-19 |
| DUE NORTH LIMITED | Other | 2 | £126k | 0.0% | 2024-12-11 |
| Luton Council | Other | 2 | £126k | 0.0% | 2022-10-25 |
| Chelmsford City Council | Other | 1 | £120k | 0.0% | 2022-03-29 |
| WRAP (Waste and Resources Action Programme)New | Other | 4 | £100k | 0.0% | 2025-09-01 |
| Nottingham University Hospital NHS TrustNew | Other | 1 | £100k | 0.0% | 2025-08-11 |
| Nottingham City CouncilNew | Other | 1 | £100k | 0.0% | 2026-03-15 |
| Wealden District Council | Other | 1 | £88k | 0.0% | 2023-08-22 |
| Housing Gateway Ltd. | Other | 1 | £86k | 0.0% | 2021-08-04 |
| Lancaster City CouncilNew | Other | 1 | £83k | 0.0% | 2024-12-19 |
| NHS Property Services Limited | Other | 1 | £80k | 0.0% | 2024-01-22 |
| Tetra Tech LimitedNew | Other | 1 | £73k | 0.0% | 2025-01-20 |
| Torus62 Developments Limited | Other | 1 | £70k | 0.0% | 2024-02-14 |
| East & North Hertfordshire NHS Trust | Other | 1 | £65k | 0.0% | 2022-02-09 |
| Department for Environment Food & Rural Affairs | Other | 2 | £62k | 0.0% | 2024-01-09 |
| Norfolk and Norwich University Hospitals NHS Foundation Trust | Other | 2 | £56k | 0.0% | 2025-09-16 |
| Uttlesford District Council | Other | 1 | £50k | 0.0% | 2023-10-01 |
| Royal Berkshire Fire & Rescue ServiceNew | Other | 1 | £48k | 0.0% | 2025-11-06 |
| London Borough of Bromley | Other | 1 | £47k | 0.0% | 2022-03-01 |
| Wychavon District CouncilNew | Other | 1 | £41k | 0.0% | 2025-01-09 |
| Darlington Borough CouncilNew | Other | 1 | £40k | 0.0% | 2024-09-12 |
| Durham County Council | Other | 1 | £40k | 0.0% | 2023-12-12 |
| Bournemouth Christchurch and Poole Council | Other | 1 | £40k | 0.0% | 2021-09-22 |
| Redcar and Cleveland Borough Council | Other | 1 | £35k | 0.0% | 2020-12-21 |
| Defence Information Infrastructure | Other | 1 | £35k | 0.0% | 2021-02-01 |
| CHESHIRE EAST COUNCIL | Other | 1 | £29k | 0.0% | 2022-02-24 |
| West Hertfordshire Hospitals NHS Trust | Other | 1 | £22k | 0.0% | 2022-03-25 |
| Test Valley Borough CouncilNew | Other | 1 | £20k | 0.0% | 2024-06-25 |
| Met OfficeNew | Other | 1 | £18k | 0.0% | 2026-01-12 |
| Nuneaton & Bedworth Borough Council | Other | 1 | £13k | 0.0% | 2022-04-22 |
| Historic England | Other | 1 | £12k | 0.0% | 2023-01-16 |
| Portsmouth Water LimitedNew | Other | 3 | £0k | 0.0% | 2026-02-11 |
| Surrey County CouncilNew | Other | 2 | £0k | 0.0% | 2025-10-07 |
| Pagabo | Other | 1 | £0k | 0.0% | 2024-04-12 |
| Waste & Resources Action Programme | Other | 1 | £0k | 0.0% | |
| Procurement for Housing | Other | 2 | £0k | 0.0% | |
| Scotland Excel | Other | 12 | £0k | 0.0% | |
| The Education Alliance | Other | 5 | £0k | 0.0% | |
| the Education Authority | Other | 1 | £0k | 0.0% | |
| Carmarthenshire County Council | Other | 1 | £0k | 0.0% | |
| Peel Ports Investments Limited | Other | 2 | £0k | 0.0% | |
| South Lakeland District Council | Other | 6 | £0k | 0.0% | |
| NHS Commercial Solutions | Other | 1 | £0k | 0.0% | |
| Nottingham Trent University (NTU) | Other | 1 | £0k | 0.0% | |
| ENVIRONMENT AGENCY (Defra Network eTendering Portal) | Other | 1 | £0k | 0.0% | |
| THAMES WATER UTILITIES LIMITED | Other | 1 | £0k | 0.0% | |
| THE MANCHESTER SHIP CANAL COMPANY LIMITED | Other | 1 | £0k | 0.0% | |
| Grŵp Cynefin | Other | 1 | £0k | 0.0% | |
| Natural Resources Wales | Other | 1 | £0k | 0.0% | |
| West Lancashire Borough Council | Other | 1 | £0k | 0.0% | |
| Cardiff Council | Other | 4 | £0k | 0.0% | |
| Abri | Other | 1 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 3 | £0k | 0.0% | |
| New Gorbals Housing Association | Other | 1 | £0k | 0.0% | |