| 63 SMA Devco Limited | London | 2026 |
| 63 ST Thomas Street, Bristol Limited | London | 2021 |
| 637 Management Ltd | Sutton Coldfield | 2024 |
| 638 Green Lanes Limited | London | 2017 |
| 63KT89ER Ltd | Barnet | 2022 |
| 64 Church Road Limited | Hove | 2008 |
| 64 Designs Electrical Ltd | Dunmow | 2014 |
| 64 Hales Road Ltd | London | 2020 |
| 645 FM Ltd | Glasgow | 2015 |
| 64DEGREES(HEATING) Ltd | Faringdon | 2016 |
| 64WR Exeter Limited | London | 2025 |
| 65 Greenford Avenue Ltd | London | 2022 |
| 65 Lumley Road Ltd | Barking | 2024 |
| 65 Property Management Ltd | Wolverhampton | 2019 |
| 654 Developments Limited | Sheffield | 2002 |
| 65A Portobello Road Limited | London | 2012 |
| 65WBR Ltd | London | 2018 |
| 65WR Limited | Luton | 2025 |
| 66 Atelier Limited | Craigavon | 2025 |
| 66 Brickwork Limited | Worthing | 2018 |
| 66 Court Road (Management) Limited | London | 1984 |
| 66 East Street Limited | Bristol | 2016 |
| 66 RMT Ltd | Hamilton | 2018 |
| 66 the Street Ltd | Croydon | 2019 |
| 66 Woodside Developments Limited | Hatfield | 2018 |
| 666 Contractors Ltd | London | 2016 |
| 666 Engineering Limited | Selby | 2014 |
| 666 Rigging Services Limited | Stanford-Le-Hope | 2025 |
| 66NS Limited | Heaton Mersey | 2026 |
| 67 (Bideford Avenue) Ltd | Harrow | 2012 |
| 67 BON Accord Ltd | Aberdeen | 2026 |
| 67 Clifton Hill Ltd | London | 1986 |
| 68 Barbauld RD Limited | London | 2015 |
| 68 Degrees Heating Limited | Sale | 2021 |
| 68 Malden Road Limited | London | 2012 |
| 68 Ridgeway Ltd | London | 2019 |
| 68-70 Bovill Road Freehold Limited | Barnet | 2025 |
| 681 Group Ltd | London | 2023 |
| 6820 Ltd | Preston | 2020 |
| 684 Tech Limited | Glasgow | 2017 |
| 68C Group Limited | Slough | 2017 |
| 68ONE Ltd | Ilford | 2022 |
| 69 High Street Hythe Limited | Ashford | 2016 |
| 69 Kingswood Lane Ltd | Croydon | 2022 |
| 69 Kingswood Properties Investment Ltd | Croydon | 2024 |
| 69 Square Limited | Dartford | 2005 |
| 69-79 Moundfield Road Limited | London | 2018 |
| 6:59 Ltd | Cardiff | 2016 |
| 6A Bucknills Close Limited | Epsom | 2022 |
| 6A Kenmore Ltd | Wilmslow | 2023 |
| 6A MP Builders Ltd | Ashton Under Lyne | 2024 |
| 6A Vision Homes Ltd | Godalming | 2016 |
| 6AQ Development Limited | Edinburgh | 2019 |
| 6DR Limited | London | 2024 |
| 6HB Ltd | Gateshead | 2024 |
| 6IDED Properties Ltd | Gravesend | 2026 |
| 6IGMA Ltd | London | 2026 |
| 6IX Projects Limited | Portsmouth | 2023 |
| 6IXTEEN37 Limited | London | 2011 |
| 6M Investments Ltd | Northwood Hills | 2022 |
| 6OCR Ltd | London | 2026 |
| 6STAR Property Maintenance Ltd | Wimborne | 2025 |
| 6T Property Developments Ltd | Bedford | 2024 |
| 6T6 Ltd | Ipswich | 2025 |
| 6TEN Consulting Ltd | Stanmore | 2024 |
| 6TH Dimension Ltd | Pinner | 2017 |
| 6TH Ltd | Wembley | 2022 |
| 7 Acres Commercial Ltd | Norwich | 2020 |
| 7 Bays Heating Company Ltd | London | 2015 |
| 7 Bays Properties Ltd | Bristol | 2017 |
| 7 Bays Scaffolding (SW) Ltd | Padstow | 2017 |
| 7 Brothers Solutions Ltd | Isleworth | 2023 |
| 7 Building & Construction Company Limited | London | 2017 |
| 7 Capital Partners Ltd | Northwood | 2014 |
| 7 Civils Ltd | Worcester | 2024 |
| 7 Conduit Street Limited | London | 2024 |
| 7 Cross & Pillory SPV Ltd | Wokingham | 2024 |
| 7 Day Plumbing Services Limited | Bolton | 2010 |
| 7 Day Windows Limited | Swansea | 2020 |
| 7 Days Building Services Ltd | London | 2015 |
| 7 Days Carpets & Wood Flooring Limited | Uxbridge | 2014 |
| 7 Days Roofing & Property Maintenance Ltd | Stirling | 2018 |
| 7 Districts Flooring Ltd. | Northampton | 2023 |
| 7 Edge Tiling Ltd | Surbiton | 2024 |
| 7 Electric Services Limited | Todmorden | 2018 |
| 7 Eleven Construction Ltd | Mistley | 2026 |
| 7 ELM Group Ltd | Christchurch | 2019 |
| 7 Elms Construction Ltd | Rayleigh | 2025 |
| 7 Elms Ltd | Rayleigh | 2018 |
| 7 Formation Limited | Corby | 2008 |
| 7 GRP UK Ltd | Sheffield | 2012 |
| 7 Hampton Road Limited | East Grinstead | 2022 |
| 7 Harewood Road Limited | Leatherhead | 2016 |
| 7 Hills Constructions Ltd | Luton | 2019 |
| 7 Hills Flat Roofing Ltd | Sheffield | 2025 |
| 7 Hills Mechanical Limited | Dronfield | 2026 |
| 7 Hills Plastering Ltd | Sheffield | 2026 |
| 7 Hills Projects Limited | Sheffield | 2024 |
| 7 Hills Property Care Ltd | Sheffield | 2023 |
| 7 Hills Roofing Ltd | Sheffield | 2021 |