| Karibu Community Homes | Other public body | 2 | 0 | £66,752,000 |
| Royal Surrey County Hospital NHS Foundation Trust | Central government | 77 | 1 | £66,545,000 |
| University of South Wales | Education | 122 | 2 | £66,290,344 |
| Northern Ireland Policing Board | Other public body | 13 | 0 | £66,000,259 |
| NDA Archives Limited | Central government | 1 | 0 | £66,000,000 |
| Torbay and South Devon NHS Foundation Trust | Central government | 35 | 0 | £65,948,484 |
| Invest Northern Ireland | Central government | 53 | 0 | £65,757,200 |
| West Mercia Police and Crime Commissioner | Police & fire | 25 | 2 | £65,725,000 |
| Brighter Futures for Children | not classified | 11 | 1 | £65,725,000 |
| The Mayor's Office for Policing and Crime (MOPAC) | Central government | 3 | 0 | £65,587,492 |
| City Of Sunderland | not classified | 3 | 0 | £65,400,000 |
| Lighthouse Schools Partnership | Central government | 6 | 0 | £65,060,000 |
| Sport England | Other public body | 67 | 1 | £65,046,000 |
| NHS Thames Valley ICB | NHS & health | 9 | 0 | £64,732,100 |
| NHS England & Improvement - North East and Yorkshire | NHS & health | 7 | 0 | £64,501,862 |
| Lifestone Home Limited | Other public body | 20 | 2 | £64,497,608 |
| CENTRE FOR PROCESS INNOVATION LIMITED | Other public body | 218 | 4 | £64,440,000 |
| Castle Point Borough Council | Local authority | 46 | 2 | £64,148,605 |
| NORTHERN CARE ALLIANCE NHS FOUNDATION TRUST | NHS & health | 30 | 0 | £63,600,000 |
| Met Office | Central government | 394 | 2 | £63,392,467 |
| Bedfordshire Hospitals NHS Foundation Trust | Central government | 42 | 0 | £62,913,000 |
| Driver and Vehicle Agency DVA | Central government | 3 | 0 | £62,800,000 |
| Gateshead Council | Local authority | 204 | 3 | £62,724,143 |
| Our Future Health (Akeso Acting on behalf of) | not classified | 2 | 0 | £62,500,000 |
| Ofcom | Other public body | 133 | 1 | £62,412,000 |
| Braintree District Council | Local authority | 93 | 0 | £62,071,961 |
| National Museums Liverpool | Central government | 12 | 0 | £61,990,000 |
| DEPARTMENT OF ENVIRONMENT, FOOD AND RURAL AFFAIRS | not classified | 46 | 0 | £61,936,364 |
| The Police and Crime Commissioner for Avon & Somerset | Police & fire | 23 | 0 | £61,751,500 |
| Ofgem | Other public body | 54 | 0 | £60,926,726 |
| Velindre NHS Trust, NHS Shared Services Partnership — Procurement Services (on behalf of All Wales Health Boards and Trusts) | NHS & health | 8 | 0 | £60,627,675 |
| SOUTH YORKSHIRE PASSENGER TRANSPORT EXECUTIVE | not classified | 7 | 0 | £60,524,030 |
| Tyne and Wear Passenger Transport Executive T/A Nexus | Other public body | 45 | 2 | £60,120,222 |
| MHC Team | not classified | 2 | 0 | £60,000,000 |
| Monson Homes Limited | not classified | 2 | 0 | £60,000,000 |
| AGRATAS LIMITED | not classified | 1 | 0 | £60,000,000 |
| United Kingdom Industrial Fusion Solutions | not classified | 1 | 0 | £60,000,000 |
| Natural Resources Wales | Other public body | 267 | 2 | £59,989,734 |
| ROG First Light Exhibitions Scenic Engineering Model Contractor | Central government | 27 | 2 | £59,912,350 |
| ID 2642050 Department for the Economy | Central government | 1 | 0 | £59,900,000 |
| Amplius Living | Other public body | 58 | 0 | £59,720,000 |
| The Department of Agriculture, Environment and Rural Affairs | not classified | 6 | 0 | £59,494,000 |
| THE UNIVERSITY OF ULSTER | Education | 29 | 2 | £59,492,616 |
| Irvine Housing Association Limited | Housing | 4 | 0 | £59,400,000 |
| NHS SURREY AND SUSSEX INTEGRATED CARE BOARD | Central government | 44 | 0 | £59,053,806 |
| General Dental Council | Local authority | 36 | 1 | £59,037,500 |
| Barcud Shared Services | Other public body | 63 | 1 | £58,971,920 |
| PA Housing | not classified | 12 | 0 | £58,912,800 |
| Harbour Homes Scotland Limited, formerly Port of Leith Housing Association Ltd | Housing | 2 | 0 | £58,810,000 |
| Linc-Cymru Housing Association Ltd | Housing | 13 | 0 | £58,630,000 |
| The Police and Crime Commissioner for Warwickshire | Police & fire | 66 | 2 | £58,575,136 |
| Bernicia Group | Other public body | 46 | 0 | £58,540,000 |
| QUALIS PROPERTY SOLUTIONS LTD | Other public body | 7 | 0 | £58,484,115 |
| Newark And Sherwood District Council | Local authority | 96 | 2 | £58,309,000 |
| bpha | Other public body | 14 | 1 | £58,282,757 |
| KINGSTOWN WORKS LIMITED | Other public body | 33 | 0 | £58,084,562 |
| The Housing Plus Group Limited | Other public body | 5 | 0 | £57,925,000 |
| The Legal Aid Agency | not classified | 44 | 0 | £57,745,244 |
| Royal Surrey NHS Foundation Trust | NHS & health | 5 | 0 | £57,200,000 |
| The Insolvency Service | Central government | 28 | 0 | £57,014,000 |
| London Councils | Local authority | 33 | 0 | £56,886,000 |
| Tate Gallery | not classified | 13 | 0 | £56,795,001 |
| The Kemnal Academies Trust (TKAT) | Education | 6 | 0 | £56,682,540 |
| Hertfordshire Partnership University NHS Foundation Trust | Central government | 60 | 1 | £56,510,500 |
| Outwood Grange Academies Trust | Education | 45 | 0 | £56,296,520 |
| GOVIA THAMELINK RAILWAY LIMITED | not classified | 2 | 0 | £56,000,000 |
| NHS Oldham Clinical Commissioning Group | NHS & health | 1 | 0 | £56,000,000 |
| Crown Prosecution Service | Central government | 77 | 0 | £55,696,449 |
| Tollbar Multi Academy Trust | not classified | 1 | 0 | £55,600,000 |
| NHS National Services Scotland | NHS & health | 31 | 0 | £55,370,000 |
| National Physical Laboratory | not classified | 110 | 0 | £55,193,000 |
| Kingston University | Education | 19 | 0 | £55,100,000 |
| Home Office - Digital Data & Technology (DDaT) | Central government | 3 | 0 | £55,000,000 |
| Yorkshire Ambulance Authority NHS Trust | NHS & health | 13 | 0 | £54,921,000 |
| North Devon District Council | Local authority | 63 | 3 | £54,803,791 |
| SRUC | not classified | 29 | 1 | £54,596,000 |
| Midlands Partnership Foundation Trust | NHS & health | 57 | 1 | £54,593,310 |
| Cheltenham Borough Council | Local authority | 57 | 2 | £54,556,267 |
| Birmingham & Solihull Mental Health Foundation Trust | Central government | 135 | 0 | £54,546,445 |
| Ministry of Defence, Strategic Command Commercial, Defence Intelligence | Central government | 6 | 0 | £54,427,214 |
| NHS Dorset Clinical Commissioning Group | NHS & health | 3 | 0 | £54,400,000 |
| National Citizen Service | not classified | 6 | 0 | £54,160,000 |
| Govia Thameslink Rail (GTR) PROCUREMENT OF HARD FM SERVICES | not classified | 1 | 0 | £54,000,000 |
| Croydon Health Services NHS Trust | Central government | 32 | 0 | £53,501,591 |
| Barnet Homes Ltd | Other public body | 24 | 0 | £53,330,000 |
| South West London and St George's Mental Health NHS Trust | Central government | 13 | 0 | £53,311,930 |
| East Midlands Combined County Authority | Other public body | 15 | 1 | £53,310,230 |
| Tourism Northern Ireland | Central government | 16 | 1 | £53,122,765 |
| Llywodraeth Cymru / Welsh Government - Commercial Delivery | not classified | 11 | 0 | £53,000,000 |
| Ardersier Port (Scotland) Limited | not classified | 3 | 0 | £53,000,000 |
| City Building (Glasgow) LLP | not classified | 23 | 0 | £52,988,584 |
| Hjaltland Housing Association Ltd | Housing | 8 | 0 | £52,912,000 |
| UNIVERSITY OF WINCHESTER | Education | 29 | 1 | £52,720,000 |
| FIRST TRENITALIA WEST COAST RAIL LIMITED | Other public body | 35 | 1 | £52,415,937 |
| Connexus Homes Limited | Other public body | 48 | 1 | £52,409,348 |
| Royal Devon & Exeter NHS Foundation Trust | Central government | 17 | 0 | £52,283,333 |
| The Royal Wolverhampton NHS Trust | Central government | 29 | 0 | £52,176,333 |
| Vico Homes | Other public body | 49 | 0 | £52,133,637 |
| DESNZ & DSIT Group Commercial | not classified | 71 | 0 | £51,609,901 |
| CITY,UNIVERSITY OF LONDON | Education | 34 | 0 | £51,565,000 |