| British Council | Local authority | 656 | 8 | £304,746,867 |
| Bridgend County Borough Council | Local authority | 186 | 3 | £302,390,164 |
| SSE SERVICES PLC | not classified | 22 | 0 | £302,000,000 |
| Department for Digital, Culture, Media and Sport | Central government | 23 | 0 | £301,796,000 |
| Chelsea and Westminster Hospital NHS Trust | NHS & health | 2 | 0 | £301,000,000 |
| NHS Shropshire, Telford and Wrekin Integrated Care Board | Central government | 40 | 0 | £300,717,468 |
| Advantage Utilities Ltd | not classified | 1 | 0 | £300,000,000 |
| Reopening Sandwell Domicilary Care Service | not classified | 1 | 0 | £300,000,000 |
| University College London Hospitals NHS FT | Central government | 54 | 1 | £298,880,999 |
| Mole Valley District Council | Local authority | 21 | 1 | £298,772,019 |
| Oxford City Council | Local authority | 267 | 1 | £297,197,680 |
| Worcestershire Acute Hospitals NHS Trust | Central government | 21 | 0 | £296,245,880 |
| National Crime Agency | Central government | 13 | 0 | £294,600,000 |
| NHS BUCKINGHAMSHIRE, OXFORDSHIRE AND BERKSHIRE WEST INTEGRATED CARE BOARD | Central government | 20 | 0 | £292,237,072 |
| The Metropolitan Police Federation | Police & fire | 12 | 0 | £292,150,000 |
| The NHS Commissioning Board operating as NHS England | NHS & health | 22 | 0 | £291,515,418 |
| Scottish Police Authority | Central government | 209 | 2 | £289,370,236 |
| The Riverside Group Limited | Other public body | 113 | 3 | £288,645,349 |
| London Fire Commissioner | Other public body | 82 | 1 | £288,600,803 |
| Barnsley Metropolitan Borough Council | Local authority | 363 | 2 | £287,066,015 |
| Business Services Organisation - Procurement and Logistics Service [BSO PaLS] on behalf of the Western Health and Social Care Trust | NHS & health | 1 | 0 | £286,520,584 |
| Scottish Fire and Rescue Service | Police & fire | 68 | 0 | £286,071,935 |
| NHS England - North East and Yorkshire Health and Justice Team | NHS & health | 6 | 0 | £284,984,640 |
| SONI Ltd | Other public body | 33 | 4 | £283,387,621 |
| NHS Commissioning Board | NHS & health | 2 | 0 | £281,196,640 |
| South Cambridgeshire District Council | Local authority | 64 | 0 | £280,579,000 |
| GCRE Ltd | not classified | 8 | 0 | £280,250,000 |
| South Tyneside Council | Local authority | 179 | 5 | £279,613,961 |
| Ministry of Housing, Communities & Local Government | Central government | 88 | 0 | £279,391,520 |
| Caledonian Sleeper Limited | not classified | 20 | 1 | £278,871,000 |
| The Skills Development Scotland Co. Limited | not classified | 6 | 0 | £278,623,000 |
| Norwich City Council | Local authority | 108 | 1 | £277,399,000 |
| Health and Safety Executive | Central government | 130 | 1 | £274,691,218 |
| CTM Portal for the NDA Shared Services Alliance | not classified | 53 | 0 | £273,625,001 |
| Trivallis | Other public body | 30 | 0 | £273,446,598 |
| Warwick District Council | Local authority | 28 | 0 | £273,380,001 |
| NHS Bedfordshire, Luton and Milton Keynes Integrated Care Board | Central government | 86 | 1 | £273,100,575 |
| St Helens Council | Local authority | 161 | 2 | £273,077,900 |
| Birmingham Women's and Children's NHS Foundation Trust | Central government | 291 | 1 | £272,815,564 |
| North Tyneside Council | Local authority | 192 | 2 | £271,994,442 |
| Housing 21 | Other public body | 295 | 0 | £270,911,969 |
| Stevenage Borough Council | Local authority | 92 | 0 | £266,282,232 |
| NHS Commissioning Board (Operating as NHS England) | NHS & health | 2 | 0 | £265,500,000 |
| St Albans City and District Council | Local authority | 17 | 0 | £265,000,000 |
| NHS West Yorkshire Integrated Care Board | Central government | 317 | 0 | £264,691,050 |
| Oxleas NHS Foundation Trust | Central government | 39 | 0 | £264,531,000 |
| NHS Business Services Authority | Central government | 132 | 0 | £264,424,459 |
| University of Warwick | Education | 161 | 1 | £261,982,780 |
| The Royal Borough of Windsor and Maidenhead | Local authority | 38 | 1 | £258,106,550 |
| Northern Ireland Electricity Networks Limited | Other public body | 185 | 1 | £258,100,000 |
| Chelsea and Westminster Hospital NHS Foundation Trust | Central government | 43 | 0 | £258,020,969 |
| Tendring District Council | Local authority | 36 | 0 | £255,949,000 |
| Great Western Hospitals NHS Foundation Trust | Central government | 79 | 0 | £254,884,549 |
| The Highland Council | Local authority | 106 | 4 | £253,855,632 |
| The Bolton Impact Trust | Other public body | 7 | 3 | £253,500,000 |
| Clarion Housing Property Development Service Limited | Other public body | 69 | 0 | £251,930,000 |
| Worthing Borough Council/Adur District Council | Local authority | 2 | 0 | £250,900,000 |
| The Scottish Ministers | not classified | 2 | 0 | £250,000,000 |
| Dartford Borough Council | Local authority | 106 | 1 | £249,931,800 |
| Morgan Sindall Construction and Infrastucture | not classified | 1 | 0 | £249,000,000 |
| NHS Frimley Integrated Care Board | Central government | 99 | 0 | £248,795,869 |
| The Nursing and Midwifery Council | Central government | 53 | 0 | £248,482,498 |
| Longhurst Group Limited | not classified | 1 | 0 | £247,770,638 |
| City of Lincoln | Other public body | 28 | 0 | £247,690,000 |
| Woven Housing Association Ltd | Housing | 29 | 1 | £245,820,000 |
| NHS England and NHS Improvement North West | NHS & health | 48 | 0 | £244,346,039 |
| Nottingham University Hospital NHS Trust | Central government | 93 | 0 | £242,840,367 |
| Norse Commercial Services Ltd | Other public body | 82 | 1 | £241,122,029 |
| Gentoo Group Limited | Other public body | 110 | 1 | £238,717,940 |
| De Montfort University | Education | 117 | 0 | £238,567,001 |
| NHS Devon Integrated Care Board | Central government | 182 | 1 | £237,779,602 |
| United Kingdom Atomic Energy Authority | not classified | 402 | 0 | £237,501,443 |
| London Borough of Lewisham | Local authority | 692 | 1 | £236,338,176 |
| Wigan Council | Local authority | 150 | 8 | £236,180,081 |
| Cefas | not classified | 216 | 1 | £236,126,333 |
| NHS Kent and Medway CCG | NHS & health | 20 | 0 | £232,904,000 |
| NHS Nottingham and Nottinghamshire Integrated Care Board | Central government | 118 | 0 | £232,317,768 |
| South Oxfordshire District Council | Local authority | 44 | 1 | £231,562,924 |
| NOTTING HILL GENESIS | not classified | 163 | 0 | £230,875,691 |
| NHS Essex Integrated Care Board | NHS & health | 83 | 0 | £230,676,492 |
| One Housing | not classified | 9 | 0 | £230,420,369 |
| University of Essex | Education | 49 | 0 | £230,138,333 |
| University Hospital Southampton | Education | 29 | 0 | £230,000,000 |
| Habinteg Housing Assocation Ulster Ltd | not classified | 12 | 0 | £229,600,000 |
| Metropolitan Housing Trust | Housing | 144 | 0 | £227,750,728 |
| NHS SOUTH WEST LONDON INTEGRATED CARE BOARD | NHS & health | 132 | 1 | £226,940,999 |
| Network Homes | not classified | 22 | 0 | £226,450,001 |
| Forestry Commission | Other public body | 283 | 9 | £223,645,303 |
| Our Future Health (Akeso&Co acting on behalf of) | not classified | 7 | 0 | £222,000,000 |
| Radius Housing | not classified | 49 | 0 | £221,450,000 |
| Department for Communities | Central government | 41 | 1 | £220,556,140 |
| The Hyde Group | Other public body | 93 | 1 | £219,700,000 |
| NHS North East and North Cumbria Integrated Care Board | Central government | 1,022 | 1 | £218,961,186 |
| Hertfordshire Catering Limited | Other public body | 6 | 0 | £218,710,000 |
| Bradford Teaching Hospitals NHS Foundation Trust | Central government | 130 | 0 | £217,181,810 |
| Middlesbrough Council | Local authority | 315 | 0 | £216,283,180 |
| British Business Bank | Central government | 79 | 1 | £215,595,600 |
| Lewisham and Greenwich NHS Trust | Central government | 43 | 0 | £215,175,975 |
| Waverley Borough Council | Local authority | 21 | 0 | £215,156,440 |
| East Suffolk and North Essex NHS Foundation Trust | Central government | 180 | 0 | £214,193,806 |