| A. Connolly Limited | 30 | 2024-09 |
| A.j. Morrisroe & Sons Limited | 41 | 2026-04 |
| Aaron Services Limited | 33 | 2026-03 |
| Abbey Developments Limited | 20 | 2026-04 |
| Abbey Investments Limited | 10 | 2026-04 |
| Aberdeen Roads Holdings Limited | 31 | 2018-12 |
| Aberdeen Roads Limited | 31 | 2018-12 |
| Actemium UK Limited | 39 | 2025-12 |
| Ainscough Crane Hire Ltd | 64 | 2026-03 |
| Allenbuild Limited | 27 | 2026-03 |
| Alun Griffiths (Contractors) Limited | 29 | 2025-12 |
| Amalgamated Construction Ltd | 42 | 2026-03 |
| Amec Foster Wheeler Nuclear UK Limited | 27 | 2025-03 |
| Amey Power Services Limited | 46 | 2020-12 |
| Amey Rail Limited | 31 | 2025-12 |
| Anesco Limited | 23 | 2022-09 |
| Anwyl Construction Company Limited | 30 | 2025-12 |
| Applebridge Construction Limited | 27 | 2026-04 |
| Ardmore Construction Limited | 45 | 2022-03 |
| Ark Estates Development Limited | 32 | 2022-06 |
| Ark Mechanical and Electrical Services Limited | 65 | 2026-04 |
| Aster Homes Limited | 28 | 2026-03 |
| Aster Property Limited | 32 | 2026-03 |
| Avant Homes (England) Limited | 51 | 2025-12 |
| Avant Homes (Scotland) Limited | 43 | 2025-12 |
| Axis Europe PLC | 30 | 2026-03 |
| B & K Building Services Limited | 38 | 2024-02 |
| Bachy Soletanche Limited | 34 | 2025-12 |
| Balfour Beatty Group Limited | 35 | 2025-12 |
| Bam Construct UK Limited | 32 | 2025-12 |
| Bam Construction Limited | 36 | 2025-12 |
| Bam Nuttall Limited | 28 | 2025-12 |
| Bancon Group Limited | 36 | 2026-03 |
| Bancon Homes Limited | 48 | 2026-03 |
| Bancroft Limited | 58 | 2025-12 |
| Barhale Limited | 55 | 2025-12 |
| Barnwood Limited | 37 | 2025-12 |
| Barratt Developments P L C | 30 | 2025-12 |
| Bdl Group Public Limited Company(the) | 19 | 2026-03 |
| Bdw Trading Limited | 35 | 2025-12 |
| Bear Scotland Limited | 63 | 2025-12 |
| Bechtel Limited | 24 | 2025-12 |
| Bechtel Management Company Limited | 28 | 2025-12 |
| Beech Grove Homes Limited | 27 | 2026-03 |
| Bell Decorating Group Limited | 45 | 2026-03 |
| Bellway Homes Limited | 33 | 2026-01 |
| Bemo Tunnelling UK Ltd | 17 | 2025-12 |
| Bennett Construction (London) Limited | 5 | 2026-03 |
| Bennett Management Contractors (Gb) Limited | 2 | 2026-03 |
| Berkeley (Sqp) Limited | 29 | 2024-04 |
| Berkeley Homes (Southall) Limited | 19 | 2026-04 |
| Berkeley Homes Public Limited Company | 28 | 2026-04 |
| Bewley Homes PLC | 32 | 2026-03 |
| Bh (City Forum) Limited | 19 | 2026-04 |
| Bidconnecter Limited | 14 | 2023-06 |
| Bl Retail Warehousing Holding Company Limited | 13 | 2021-03 |
| Black & Veatch Limited | 24 | 2026-04 |
| Bloor Homes Limited | 44 | 2024-12 |
| Borras Construction Ltd. | 35 | 2024-12 |
| Boskalis Offshore Limited | 47 | 2019-12 |
| Boskalis Westminster Limited | 21 | 2025-12 |
| Bouygues (U.k.) Limited | 22 | 2025-12 |
| Bouygues E&s Contracting UK Limited | 43 | 2025-12 |
| Bouygues E&s Infrastructure UK Limited | 29 | 2025-12 |
| Bowmer and Kirkland Limited | 27 | 2026-02 |
| Boxt Limited | 10 | 2025-12 |
| Braeburn Estates Developments (1) Limited | 35 | 2019-12 |
| Braeburn Estates Developments (2) Limited | 36 | 2019-12 |
| Braeburn Estates Developments (Infrastructure) Limited | 36 | 2019-12 |
| Brand Energy & Infrastructure Services Uk, Ltd. | 37 | 2025-12 |
| Breheny Civil Engineering Limited | 22 | 2026-03 |
| Breyer Group Public Limited Company | 70 | 2024-05 |
| Briggs & Forrester Engineering Services Limited | 58 | 2026-04 |
| Briggs & Forrester Living Limited | 62 | 2026-04 |
| Briggs Amasco Limited | 36 | 2024-12 |
| British Gas New Heating Limited | 44 | 2025-12 |
| British Gas Social Housing Limited | 36 | 2025-12 |
| British Land Company Public Limited Company(the) | 17 | 2026-03 |
| Broadgate (Phc 3) Limited | 17 | 2025-03 |
| Broadgate Estates Limited | 21 | 2020-03 |
| Bromford Developments Limited | 34 | 2026-03 |
| Brown and Mason Group Limited | 45 | 2024-10 |
| Buckingham Group Contracting Limited | 39 | 2023-06 |
| Building Solutions (National) Limited | 54 | 2025-12 |
| Buxton Building Contractors Limited | 30 | 2026-01 |
| By Development Limited | 26 | 2025-12 |
| Byrne Bros. (Formwork) Limited | 47 | 2024-12 |
| Byzak Limited | 12 | 2024-12 |
| C Spencer Limited | 41 | 2026-03 |
| C. A. Blackwell (Contracts) Limited | 45 | 2020-05 |
| C.j.o'shea and Company Limited | 33 | 2026-03 |
| C.l.c. Contractors Limited | 26 | 2026-03 |
| Caddick Construction Limited | 29 | 2026-02 |
| Cala Management Limited | 37 | 2018-06 |
| Cameron Homes Limited | 24 | 2025-12 |
| Canary Wharf Contractors (1Bs) Limited | 26 | 2024-06 |
| Canary Wharf Contractors Limited | 23 | 2024-12 |
| Canary Wharf Limited | 14 | 2025-12 |
| Cape Industrial Services Limited | 60 | 2026-02 |
| Cappagh Browne Utilities Limited | 28 | 2026-03 |
| Carnell Support Services Limited | 28 | 2026-03 |
| Carpetright PLC | 38 | 2019-10 |
| Cartus Limited | 10 | 2025-12 |
| Carver (Wolverhampton) Limited | 40 | 2024-12 |
| Castle Green Homes Limited | 29 | 2026-03 |
| Cbes Limited | 52 | 2025-12 |
| Cbre Limited | 51 | 2025-12 |
| Ccf Limited | 55 | 2025-12 |
| Ccg (Scotland) Limited | 46 | 2026-03 |
| Cementation Skanska Limited | 31 | 2025-12 |
| Cha Ventures Limited | 17 | 2020-09 |
| Charles Church Developments Limited | 32 | 2025-12 |
| Chasetown Civil Engineering Limited | 34 | 2024-12 |
| Churchill Retirement Living Limited | 37 | 2025-12 |
| Cib Properties Limited | 30 | 2021-06 |
| Citigroup Centre 1 Limited | 19 | 2025-12 |
| City Response Limited | 37 | 2026-03 |
| City West Works Limited | 60 | 2025-12 |
| Clancy Docwra Limited | 39 | 2026-03 |
| Clark Contracts Limited | 42 | 2026-04 |
| Clarkson Evans Limited | 40 | 2026-03 |
| Clipfine Limited | 39 | 2026-05 |
| Clugston Construction Limited | 30 | 2019-07 |
| Colas Limited | 34 | 2025-12 |
| Colas Rail Limited | 25 | 2025-12 |
| Compco Fire Systems Limited | 61 | 2024-12 |
| Concrete Repairs Limited | 7 | 2025-12 |
| Connect Plus (M25) Limited | 32 | 2020-03 |
| Cormac Solutions Limited | 25 | 2026-03 |
| Costain Engineering & Construction Limited | 18 | 2023-06 |
| Costain Limited | 20 | 2025-12 |
| Costain Oil, Gas & Process Limited | 25 | 2024-06 |
| Countryside Properties (UK) Limited | 46 | 2025-12 |
| Crh Fencing & Security Group (UK) Ltd | 49 | 2019-06 |
| Crossrail Limited | 10 | 2025-03 |
| Croudace Homes Limited | 36 | 2025-12 |
| Crown House Technologies Limited | 26 | 2023-03 |
| Cruden Building & Renewals Limited | 28 | 2026-03 |
| Danny Sullivan & Sons Ltd. | 17 | 2025-12 |
| Davidsons Developments Limited | 40 | 2025-12 |
| Debenhams Properties Limited | 31 | 2021-02 |
| Derby Healthcare PLC | 70 | 2025-12 |
| Derry Building Services Limited | 34 | 2026-02 |
| Dodd Group (Midlands) Limited | 40 | 2026-03 |
| Dorenell Windfarm Limited | 65 | 2025-06 |
| Dorma UK Limited | 48 | 2025-06 |
| Dsl Flooring Limited | 34 | 2025-12 |
| Dsm Demolition Limited | 37 | 2019-03 |
| Durkan Limited | 24 | 2025-11 |
| Dyer and Butler Limited | 13 | 2026-03 |
| E.g.carter & Company Limited | 32 | 2025-12 |
| E.w. Beard Limited | 23 | 2025-12 |
| East Regen Limited | 31 | 2019-03 |
| Ecl Civil Engineering Limited | 45 | 2025-12 |
| Elan Homes Holdings Ltd. | 38 | 2025-12 |
| Elephant & Castle Development UK Limited | 37 | 2025-12 |
| Emcor Group (UK) PLC | 41 | 2025-12 |
| Encon Insulation Limited | 43 | 2026-01 |
| Energetics Design & Build Limited | 50 | 2025-03 |
| Engie Regeneration (Apollo) Limited | 61 | 2023-06 |
| Engie Regeneration (Fhm) Limited | 73 | 2019-06 |
| Engie Regeneration Limited | 47 | 2025-12 |
| Eric Wright Construction Limited | 27 | 2025-12 |
| Eric Wright Water Limited | 33 | 2025-12 |
| Esh Construction Limited | 36 | 2025-11 |
| Essex Services Group Limited | 59 | 2026-06 |
| Everest Limited | 47 | 2019-12 |
| Everton Stadium Development Limited | 42 | 2025-12 |
| F M Conway Limited | 26 | 2025-12 |
| F.b.ellmer Limited | 45 | 2018-06 |
| Fairfax Design and Build Limited | 25 | 2026-03 |
| Fairview Estates (Housing) Limited | 22 | 2025-12 |
| Falcon Tower Crane Services Ltd | 60 | 2019-06 |
| Feltham Construction Limited | 28 | 2025-12 |
| Ferrovial Agroman (UK) Limited | 23 | 2025-12 |
| Ferrovial Agroman Limited | 25 | 2019-12 |
| Fes Limited | 53 | 2026-02 |
| Fes Support Services Limited | 41 | 2025-12 |
| Flynn Limited | 61 | 2022-05 |
| Fortel Services Limited | 53 | 2026-03 |
| Fortem Solutions Limited | 32 | 2025-12 |
| Fred Champion Groundworks Limited | 40 | 2026-03 |
| Gallagher Limited | 49 | 2026-03 |
| Galliard Construction Limited | 24 | 2025-03 |
| Galliard Homes Limited | 17 | 2024-09 |
| Galliford Try Building Limited | 31 | 2025-12 |
| Galliford Try Infrastructure Limited | 23 | 2025-12 |
| Galliford Try Partnerships Limited | 48 | 2023-06 |
| Galliford Try Services Limited | 24 | 2024-12 |
| Gasway Services Limited | 39 | 2025-03 |
| Gentoo Homes Limited | 19 | 2024-09 |
| Geoffrey Osborne Limited | 30 | 2023-09 |
| Getjar Limited | 45 | 2026-02 |
| Gilbert-ash Limited | 29 | 2024-12 |
| Gleeson Developments Limited | 36 | 2025-12 |
| Glencar Construction Ltd | 32 | 2026-03 |
| Global Marine Systems Limited | 22 | 2025-12 |
| Gmi Construction Group PLC | 32 | 2026-03 |
| Goldman Sachs Property Management | 24 | 2025-12 |
| Gratte Brothers Limited | 54 | 2026-03 |
| Greenwich Millennium Village Limited | 19 | 2025-12 |
| Grove Developments Limited | 46 | 2025-03 |
| Guinness Developments Limited | 52 | 2026-03 |
| H.e. Simm & Son Limited | 57 | 2021-07 |
| H.w. Martin (Traffic Management) Limited | 35 | 2026-01 |
| Halcrow International Partnership | 31 | 2025-12 |
| Hallam Land Management Limited | 28 | 2025-12 |
| Halsion Limited | 50 | 2022-03 |
| Hammerson (Brent Cross) Limited | 26 | 2018-09 |
| Harron Homes Limited | 39 | 2019-06 |
| Hart Builders (Edinburgh) Limited. | 33 | 2020-09 |
| Harworth Estates Investments Limited | 32 | 2025-12 |
| Healthcare Support (North Staffs) Limited | 22 | 2019-12 |
| Henry Boot Construction Limited | 30 | 2025-12 |
| Henry Boot Developments Limited | 27 | 2025-12 |
| Henry Brothers Construction Limited | 33 | 2026-03 |
| Henry Brothers Limited | 32 | 2026-03 |
| Hercules Site Services PLC | 6 | 2026-03 |
| Heron Bros. Limited | 27 | 2026-02 |
| Hertel (UK) Limited | 37 | 2026-02 |
| Hg Construction Limited | 41 | 2025-12 |
| Higgins Construction PLC | 23 | 2026-01 |
| Higgins Homes PLC | 17 | 2023-07 |
| Hill Partnerships Limited | 30 | 2025-12 |
| Hillreed Homes Limited | 21 | 2022-12 |
| Homeserve Membership Limited | 38 | 2026-03 |
| Hopkins Homes Limited | 28 | 2026-03 |
| Hotchkiss Ltd | 56 | 2019-09 |
| Housing Maintenance Solutions Limited | 32 | 2026-03 |
| Hqcb Investments Limited | 4 | 2018-06 |
| Htc Wolffkran Limited | 63 | 2019-06 |
| I. & H. Brown Limited | 53 | 2026-03 |
| I.m. Properties Development Limited | 27 | 2025-12 |
| Ian Williams Limited | 19 | 2026-04 |
| Imtech Engineering Services Central Ltd | 30 | 2025-12 |
| Imtech Engineering Services London and South Ltd | 30 | 2021-12 |
| Inland Homes PLC | 28 | 2022-09 |
| Integral UK Limited | 47 | 2025-12 |
| Interserve Construction Limited | 32 | 2025-12 |
| Interserve Engineering Services Limited | 40 | 2025-12 |
| Interserve Industrial Services Limited | 58 | 2025-12 |
| Isg Construction Limited | 17 | 2024-06 |
| Isg Engineering Services Limited | 36 | 2024-06 |
| Isg Fit Out Limited | 33 | 2024-06 |
| Isg Interior Services Group UK Limited | 10 | 2024-06 |
| J Mccann & Co Limited | 40 | 2025-12 |
| J. Coffey Construction Limited | 42 | 2026-04 |
| J. Murphy & Sons Limited | 14 | 2025-12 |
| J. Reddington Ltd | 31 | 2026-04 |
| J.browne Construction Company Limited | 26 | 2026-03 |
| J.n. Bentley Limited | 35 | 2025-12 |
| J.s.bloor (Services) Limited | 44 | 2024-12 |
| John Graham Construction Limited | 35 | 2026-03 |
| John Reilly (Civil Engineering) Limited | 53 | 2026-02 |
| John Sisk & Son Limited | 21 | 2025-12 |
| Johnson Controls Building Efficiency UK Limited | 30 | 2018-03 |
| Jones Bros. Ruthin (Civil Engineering) Co. Limited | 27 | 2026-03 |
| Jones Homes (North West) Limited | 30 | 2021-10 |
| Joseph Gallagher Limited | 54 | 2026-03 |
| Jsm Group Services Limited | 30 | 2025-12 |
| K & T Heating Services Limited | 30 | 2026-03 |
| Kaefer Limited | 59 | 2025-12 |
| Kbr (Aspire Construction Ventures) Limited | 31 | 2022-06 |
| Keepmoat Homes Limited | 45 | 2025-10 |
| Keller Limited | 40 | 2025-12 |
| Keltbray Built Environment Limited | 45 | 2026-04 |
| Keltbray Highways Limited | 56 | 2023-10 |
| Keltbray Limited | 30 | 2021-04 |
| Key Property Solutions Limited | 32 | 2026-02 |
| Keystone Developments (Lg) Limited | 18 | 2024-03 |
| Kier Construction Limited | 32 | 2025-12 |
| Kier Highways Limited | 36 | 2025-12 |
| Kier Infrastructure and Overseas Limited | 23 | 2025-12 |
| Kier Living Limited | 31 | 2026-03 |
| Kier Partnership Homes Limited | 48 | 2019-12 |
| Kier Property Developments Limited | 28 | 2022-12 |
| Kilnbridge Construction Services Ltd. | 53 | 2025-12 |
| Kingspan Access Floors Limited | 27 | 2025-12 |
| Kingspan Insulation Limited | 47 | 2019-12 |
| Kirkwood Homes Limited | 40 | 2019-12 |
| Knight Harwood Limited | 20 | 2025-12 |
| Knights Brown Construction Ltd | 29 | 2026-03 |
| L. Lynch (Plant Hire & Haulage) Limited | 45 | 2026-02 |
| Lagan Aviation & Infrastructure Limited | 35 | 2026-03 |
| Laing O'rourke Construction Limited | 21 | 2026-03 |
| Laing O'rourke Services Limited | 35 | 2026-03 |
| Larkfleet Limited | 60 | 2019-06 |
| Lendlease (Elephant & Castle) Limited | 33 | 2024-12 |
| Lendlease Construction (Europe) Limited | 19 | 2026-03 |
| Lendlease Development (Europe) Limited | 32 | 2020-12 |
| Lewisham Gateway Developments Limited | 34 | 2023-12 |
| Liberty Gas Group Limited | 69 | 2025-12 |
| Linbrooke Services Limited | 43 | 2022-03 |
| Linden Limited | 53 | 2019-12 |
| Lindum Group Limited | 37 | 2026-05 |
| Livingston Building Services Limited | 40 | 2025-12 |
| London Residential Healthcare Limited | 30 | 2024-06 |
| London Square Developments Limited | 37 | 2024-12 |
| Lovell Partnerships Limited | 29 | 2025-12 |
| Luddon Construction Limited | 45 | 2026-02 |
| Lul Nominee Bcv Limited | 29 | 2025-03 |
| M & J Evans Construction Limited | 44 | 2025-12 |
| M.g.l. Demolition Limited | 48 | 2026-03 |
| M.p.b. Structures Ltd | 46 | 2026-03 |
| M.v. Kelly Limited | 58 | 2026-05 |
| Mace Construct Limited | 21 | 2025-12 |
| Mace Construct Specialist Services Limited | 37 | 2025-12 |
| Mace Limited | 24 | 2025-12 |
| Mactaggart & Mickel Homes Limited | 46 | 2025-04 |
| Mammoet (UK) Limited | 28 | 2025-12 |
| Manchester Airport Group Property Developments Limited | 48 | 2019-03 |
| Marina Developments Limited | 36 | 2025-09 |
| Marshall Construction Limited | 47 | 2019-07 |
| Martin Grant Homes Limited | 36 | 2019-12 |
| Matthew Homes Limited | 21 | 2026-04 |
| Mcaleer & Rushe Contracts UK Limited | 33 | 2025-12 |
| Mccarthy & Stone Retirement Lifestyles Limited | 26 | 2026-04 |
| Mcgee Group (Holdings) Limited | 48 | 2026-05 |
| Mclaren Construction (UK) Limited | 28 | 2024-07 |
| Mclaren Construction Limited | 28 | 2026-01 |
| Mclaughlin & Harvey Construction Limited | 41 | 2025-12 |
| Mclaughlin & Harvey Limited | 31 | 2025-12 |
| Mcphillips (Wellington) Limited | 58 | 2026-03 |
| Mdh (Group) Limited | 31 | 2022-06 |
| Midgard City Limited | 55 | 2026-04 |
| Midgard Ltd | 57 | 2026-04 |
| Milestone Infrastructure Limited | 15 | 2026-03 |
| Miller Homes Limited | 42 | 2025-12 |
| Millgate Developments Limited | 36 | 2023-09 |
| Mitie Property Services (UK) Limited | 48 | 2025-03 |
| Mjl Contractors Limited | 44 | 2026-03 |
| Mjl Cornwall Limited | 16 | 2019-09 |
| Modebest Builders Limited | 63 | 2023-07 |
| Modus Services Limited | 23 | 2026-03 |
| Moortown Group Limited | 30 | 2023-11 |
| Morgan Lovell PLC | 17 | 2025-12 |
| Morgan Sindall Construction & Infrastructure Ltd | 23 | 2025-12 |
| Morris & Spottiswood Limited | 45 | 2025-12 |
| Morris Homes (Eastern) Limited | 37 | 2026-04 |
| Morris Homes (Midlands) Limited | 38 | 2025-10 |
| Morris Homes (North) Limited | 44 | 2026-04 |
| Morrison Facilities Services Limited | 34 | 2025-12 |
| Morrison Telecom Services Limited | 13 | 2026-03 |
| Morrison Utility Services Limited | 18 | 2026-03 |
| Mott Macdonald Bentley Ltd | 0 | 2025-12 |
| Mount Anvil Limited | 27 | 2026-03 |
| Mtx Contracts Limited | 26 | 2026-02 |
| Mulalley & Co. Limited | 22 | 2025-03 |
| Multiplex Construction Europe Limited | 26 | 2025-12 |
| Munro Building Services Limited | 38 | 2025-02 |
| Neilcott Construction Limited | 30 | 2025-12 |
| Nevada Construction Limited | 27 | 2026-03 |
| Newland Homes Limited | 33 | 2025-12 |
| Ng Bailey Facilities Services Limited | 40 | 2026-02 |
| Ng Bailey Limited | 35 | 2026-02 |
| North Midland Construction Public Limited Company | 66 | 2021-06 |
| Northstone (Ni) Limited | 37 | 2025-12 |
| Novus Property Solutions Limited | 23 | 2025-12 |
| O'connor Utilities Limited | 36 | 2026-04 |
| O'halloran & O'brien Limited | 23 | 2026-03 |
| Oakhill Group Limited | 26 | 2021-11 |
| Octavius Infrastructure Ltd. | 23 | 2026-03 |
| Ocu Services Limited | 32 | 2026-04 |
| Ogilvie Construction Limited | 39 | 2023-06 |
| Oliver Connell and Son Limited | 44 | 2025-12 |
| One Stop Stores Limited | 37 | 2026-02 |
| Overbury PLC | 19 | 2025-12 |
| P. Flannery Plant Hire (Oval) Limited | 35 | 2026-03 |
| P.j. Carey (Contractors) Limited | 52 | 2026-03 |
| Parkeray Limited | 33 | 2024-12 |
| Permasteelisa (UK) Limited | 38 | 2026-03 |
| Persimmon Homes Limited | 32 | 2025-12 |
| Peterborough (Progress Health) PLC | 18 | 2026-03 |
| Peveril Homes Limited | 34 | 2026-02 |
| Peveril Securities Limited | 41 | 2025-02 |
| Pickerings Hire Limited | 47 | 2025-12 |
| Pillar Property Group Limited | 7 | 2019-03 |
| Places for People Developments Limited | 30 | 2026-03 |
| Portview Fit-out Limited | 26 | 2026-05 |
| Power On Connections Ltd | 19 | 2025-12 |
| Powerteam Electrical Services (UK) Limited | 36 | 2025-12 |
| Prater Limited | 46 | 2021-06 |
| Progress Rail Services UK Limited | 51 | 2025-12 |
| Prysmian Powerlink Services Limited | 50 | 2025-12 |
| Qts Group Ltd. | 40 | 2026-03 |
| Quadrant Construction Services Limited | 30 | 2026-03 |
| R.g. Carter Cambridge Limited | 39 | 2025-12 |
| R.g. Carter Construction Limited | 33 | 2025-12 |
| R.g. Carter Limited | 36 | 2025-12 |
| R.g. Carter Projects Limited | 26 | 2019-12 |
| R.j. Mcleod (Contractors) Limited | 30 | 2026-04 |
| R.n. Wooler & Company Limited | 53 | 2019-12 |
| Rainton Construction Limited | 52 | 2026-03 |
| Readie Construction Limited | 32 | 2021-09 |
| Redcastle Limited | 13 | 2020-08 |
| Redrow Homes Limited | 21 | 2025-06 |
| Reds10 (UK) Limited | 33 | 2026-03 |
| Reliable Contractors Limited | 7 | 2026-05 |
| Renewable Energy Systems Limited | 82 | 2026-04 |
| Riddingtons Cis & Payroll Solutions UK Ltd | 4 | 2026-05 |
| Ringway Infrastructure Services Limited | 37 | 2025-12 |
| Ringway Jacobs Limited | 30 | 2025-12 |
| Robertson Ce Limited | 31 | 2025-12 |
| Robertson Construction Central Scotland Limited | 33 | 2025-12 |
| Robertson Construction Eastern Limited | 39 | 2019-03 |
| Robertson Construction Group Limited | 30 | 2025-12 |
| Robertson Construction Northern Limited | 34 | 2025-12 |
| Robertson Construction Tayside Limited | 34 | 2025-12 |
| Robertson Construction Yorkshire East Midlands Limited | 36 | 2025-12 |
| Robertson Homes Limited | 19 | 2025-09 |
| Robertson Partnership Homes Limited | 34 | 2019-09 |
| Roger Bullivant Limited | 42 | 2025-12 |
| Rowland Homes Limited | 35 | 2026-02 |
| Russells Limited | 34 | 2025-12 |
| Rydon Construction Limited | 35 | 2022-03 |
| S.d.c. Builders Limited | 38 | 2026-03 |
| Saipem Limited | 53 | 2025-12 |
| Schroder Real Estate Investment Management Limited | 23 | 2025-12 |
| Scot Roads Partnership Project Ltd | 19 | 2025-03 |
| Seddon Construction Limited | 31 | 2025-12 |
| Seddon Homes Limited | 34 | 2025-06 |
| Select Plant Hire Company Limited | 39 | 2026-03 |
| Selwood Ltd | 50 | 2025-12 |
| Servest Arthur Mckay Limited | 26 | 2025-12 |
| Ses (Engineering Services) Limited | 36 | 2025-12 |
| Severfield (UK) Limited | 44 | 2026-03 |
| Shanly Homes Limited | 36 | 2023-06 |
| Siemens Gamesa Renewable Energy Limited | 113 | 2026-03 |
| Sig Trading Limited | 50 | 2025-12 |
| Sir Robert Mcalpine Limited | 27 | 2026-04 |
| Skanska Construction UK Limited | 28 | 2025-12 |
| Skanska Rashleigh Weatherfoil Limited | 29 | 2025-12 |
| Skanska UK PLC | 22 | 2025-12 |
| Slough Trading Estate Limited | 14 | 2025-12 |
| Sms Meter Assets Limited | 15 | 2025-12 |
| Solar Century Holdings Limited | 42 | 2021-03 |
| Specsavers Optical Superstores Limited | 31 | 2026-02 |
| Speller Metcalfe Malvern Limited | 34 | 2026-03 |
| Spitfire Bespoke Homes Limited | 32 | 2025-06 |
| Spl Powerlines UK Limited | 25 | 2025-12 |
| Springfield Properties PLC | 36 | 2021-11 |
| Sse Contracting Limited | 33 | 2026-03 |
| St Edward Homes Limited | 29 | 2026-04 |
| St George Blackfriars Limited | 11 | 2023-10 |
| St George Northfields Limited | 22 | 2025-04 |
| St George PLC | 21 | 2026-04 |
| St James Group Limited | 24 | 2026-04 |
| St. Modwen Developments Limited | 24 | 2023-12 |
| Stanmore Contractors Limited | 10 | 2026-03 |
| Stantec Treatment Limited | 28 | 2025-12 |
| Stepnell Limited | 33 | 2026-03 |
| Steve Hoskin Construction Limited | 34 | 2026-03 |
| Stewart Milne Group Limited | 59 | 2023-10 |
| Stewart Milne Homes North West England (Developments) Limited | 39 | 2023-10 |
| Stonbury Limited | 36 | 2025-12 |
| Story Contracting Limited | 30 | 2026-03 |
| Story Homes Limited | 35 | 2026-03 |
| Strabag UK Limited | 22 | 2025-12 |
| Stratford City Business District Limited | 38 | 2020-12 |
| Subsea 7 International Contracting Limited | 36 | 2026-06 |
| Sure Maintenance Limited | 69 | 2026-03 |
| Swale Heating Limited | 58 | 2025-09 |
| Swan Commercial Services Limited | 34 | 2025-03 |
| Systra Limited | 33 | 2025-12 |
| T & B (Contractors) Limited | 32 | 2024-12 |
| T & W Civil Engineering Limited | 50 | 2026-01 |
| T Brown Group Limited | 62 | 2025-10 |
| T.e.scudder Limited | 62 | 2020-03 |
| Tamdown Group Limited | 50 | 2026-03 |
| Taylor Wimpey UK Limited | 31 | 2025-12 |
| Taylor Woodrow Infrastructure Limited | 42 | 2025-12 |
| Taziker Industrial Limited | 53 | 2026-03 |
| Tclarke Contracting Limited | 51 | 2025-12 |
| Telford Homes PLC | 29 | 2025-12 |
| Tesgl Limited | 44 | 2026-03 |
| Tgw Limited | 31 | 2020-06 |
| Thames Reinforcements Limited | 51 | 2026-04 |
| The Barnes Group Limited | 36 | 2026-03 |
| The Manchester Ship Canal Company Limited | 38 | 2026-03 |
| The Papworth Trust | 38 | 2018-09 |
| Tide Construction Limited | 33 | 2021-08 |
| Tolent Construction Limited | 41 | 2022-06 |
| Toppesfield Limited | 39 | 2026-06 |
| Trant Engineering Limited | 48 | 2025-12 |
| Travis Perkins (Properties) Limited | 14 | 2025-12 |
| Triconnex Ltd | 55 | 2022-09 |
| Tsp Projects Limited | 47 | 2019-09 |
| Tube Lines Limited | 253 | 2020-03 |
| Ui Social Infrastructure Limited | 52 | 2026-03 |
| UK Power Networks Services (Commercial) Limited | 31 | 2026-03 |
| UK Power Solutions Limited | 62 | 2026-03 |
| Uniper Technologies Limited | 39 | 2023-12 |
| United Infrastructure Energy Limited | 50 | 2026-03 |
| United Infrastructure Water Limited | 53 | 2026-03 |
| United Living (North) Limited | 51 | 2026-03 |
| United Living (South) Limited | 49 | 2026-03 |
| Van Elle Limited | 65 | 2026-04 |
| Van Oord UK Limited | 19 | 2025-12 |
| Vbms (UK) Limited | 32 | 2025-12 |
| Vertus Nfl Development Company Limited | 18 | 2024-06 |
| Via East Midlands Limited | 31 | 2026-01 |
| Vinci Construction Management Limited | 39 | 2025-12 |
| Vinci Construction UK Limited | 35 | 2025-12 |
| Vivo Defence Services Limited | 30 | 2025-12 |
| Volkerfitzpatrick Limited | 30 | 2025-12 |
| Volkerhighways Limited | 29 | 2025-12 |
| Volkerlaser Ltd | 35 | 2025-12 |
| Volkerrail Limited | 26 | 2025-12 |
| Volkerrail Specialist Businesses Limited | 27 | 2025-12 |
| Volkerstevin Infrastructure Limited | 25 | 2025-12 |
| Volkerstevin Limited | 0 | 2023-06 |
| Vsl Systems (UK) Limited | 34 | 2025-12 |
| Walter Lilly & Co. Limited | 30 | 2025-03 |
| Wates Construction Limited | 35 | 2025-12 |
| Wates Developments Limited | 32 | 2025-12 |
| Watkin Jones & Son Limited | 46 | 2026-03 |
| Wentworth House Partnership Limited | 37 | 2021-04 |
| Westco Properties Limited | 32 | 2026-03 |
| Westleigh Partnerships Limited | 48 | 2021-09 |
| Weston Homes PLC | 54 | 2026-01 |
| William Davis Limited | 40 | 2025-11 |
| Willmott Dixon Construction Limited | 30 | 2025-12 |
| Willmott Dixon Interiors Limited | 28 | 2025-12 |
| Wilson Bowden Developments Limited | 19 | 2024-06 |
| Wilson James Limited | 33 | 2026-01 |
| Wingate Electrical PLC | 47 | 2026-03 |
| Winvic Construction Limited | 33 | 2026-01 |
| Wj North Limited | 53 | 2024-07 |
| Wood Wharf Infrastructure Development Company 1 Limited | 30 | 2019-12 |
| Wyboston Lakes Limited | 30 | 2025-12 |
| Ytl Developments (UK) Limited | 39 | 2025-12 |
| Ytl Infrastructure (UK) Limited | 25 | 2025-12 |