| Budget Blinds and Curtains Limited | Wholesale & retail | 2016 |
| Bukster Deals Limited | Other services | 2019 |
| Business 123 Limited | Administrative & support | 2019 |
| BVH 57 Ltd | Real estate | 2025 |
| BVH Estates 1 Ltd | Real estate | 2024 |
| BVH Estates Ltd | Real estate | 2024 |
| BWI Specialists Limited | Administrative & support | 2024 |
| C S H Retail Limited | Wholesale & retail | 2019 |
| C Square Enterprises Limited | Administrative & support | 2016 |
| Camdenbod Limited | Real estate | 2024 |
| Cana Care Medical Limited | Health & social care | 2015 |
| Cap-Xx UK Limited | Manufacturing | 2026 |
| Capital Cladding Limited | Construction | 2020 |
| Capital Gold Property Group Ltd | Real estate | 2025 |
| Capital Plus London Limited | Other services | 2024 |
| CAPITAL24 Ltd | Real estate | 2025 |
| Capitara Limited | Financial services | 2026 |
| Cardinal Private Tuition Academy & Education Support Services Ltd | Education | 2025 |
| CARE1 Healthcare Ltd | Administrative & support | 2026 |
| Carriage H1 Limited | Real estate | 2019 |
| CAW Consultancy Business Solutions Limited | Professional & scientific | 2014 |
| CFA Security Ltd | Administrative & support | 2025 |
| CFB Care Limited | Health & social care | 2018 |
| Chair Technologies Limited | Wholesale & retail | 2013 |
| Charge Engineering Ltd | Professional & scientific | 2025 |
| Cheltenham Green Investments Ltd | Real estate | 2024 |
| Cheltenham Green Ltd | Hospitality | 2021 |
| Cheshvan Ltd | Real estate | 2023 |
| Chesway Ltd | Real estate | 2023 |
| Cheyenne Properties Ltd | Real estate | 2025 |
| CHI Land Ltd | Real estate | 2001 |
| Chicken Lodge Desserts Ltd | Hospitality | 2020 |
| Cinnamon Manufacturing Ltd | Manufacturing | 2014 |
| CKR Maintenance Limited | Other services | 2021 |
| Clarion Fashion Ltd | Wholesale & retail | 2025 |
| Clearcopy Limited | Professional & scientific | 1992 |
| Clever Loft Solutions Limited | Other services | 2025 |
| Climate Services NW (Projects) Ltd | Construction | 2024 |
| CLM Build Limited | Construction | 2023 |
| Compliance First Ltd | Professional & scientific | 2026 |
| Computer Waste Limited | Information & communication | 2010 |
| Concept (Metal Products) Limited | Manufacturing | 1976 |
| Connect Finance Limited | Financial services | 2016 |
| Consumer Safe Ltd | Professional & scientific | 2023 |
| Corbyradio Ltd | Real estate | 2023 |
| Cosyroomzz Limited | Hospitality | 2024 |
| Crompton Living Ltd | Real estate | 2022 |
| Cukierman Ltd | Real estate | 2024 |
| Cunninghams Pickle Company Limited | Manufacturing | 2015 |
| Cwoi | Other services | 2015 |
| D & D Textile Solutions Ltd | Wholesale & retail | 2019 |
| D&S Fire Limited | Public administration | 2013 |
| D.R Vehicle Repairs Ltd | Other services | 2023 |
| D.Turner & SON (Machinery Removal) Ltd | Transport & logistics | 2006 |
| D2D Consultancy Limited | Administrative & support | 2025 |
| DAF Yomi Ltd | Real estate | 2021 |
| Daisy Builders Ltd | Administrative & support | 2025 |
| Dandy Investments Ltd | Financial services | 2025 |
| Dantor Limited | Professional & scientific | 2017 |
| Darcy Bolton Limited | Extraterritorial | 2007 |
| Darcy Bolton Property Limited | Extraterritorial | 2007 |
| Darcy Limited | Extraterritorial | 2007 |
| Darlton Ltd | Real estate | 2024 |
| Dassa’S Daycare Limited | Health & social care | 2025 |
| DE Paris Transport Limited | Transport & logistics | 2022 |
| Debest Ltd | Households | 2024 |
| Deji Properties Ltd | Real estate | 2018 |
| Delta Couriers Direct Ltd | Transport & logistics | 2025 |
| Delutr Ltd | Administrative & support | 2026 |
| Designer Boutique Shop Limited | Wholesale & retail | 2017 |
| Developments by DR S Ltd | Real estate | 2026 |
| Digital Verification Ltd | Information & communication | 2025 |
| Diligent Parcel Delivery Limited | Transport & logistics | 2013 |
| Dira Limited | Real estate | 2023 |
| Direct Solutions (NW) Ltd | Other services | 2024 |
| Dita Homes Ltd | Real estate | 2025 |
| Dita Properties (MCR) Ltd | Real estate | 2024 |
| Dita Properties Management Ltd | Real estate | 2026 |
| DLI Data Ltd | Information & communication | 2020 |
| Dlsp Properties Limited | Real estate | 2023 |
| DM Group Property Investments Ltd | Real estate | 2019 |
| DMB Fire Plus Limited | Administrative & support | 2025 |
| DMG 2026 Ltd | Real estate | 2026 |
| Dnipro M UK Ltd | Wholesale & retail | 2023 |
| DNS Properties Limited | Real estate | 2016 |
| DO B Connected Limited | Arts & recreation | 2026 |
| DR Brendan J Dunlop Ltd | Health & social care | 2021 |
| Dragan Cleaning Services Limited | Other services | 2019 |
| DSI Services Ltd | Construction | 2024 |
| DTS Contractors Ltd | Administrative & support | 2026 |
| Dynamic Display Designs Limited | Manufacturing | 2010 |
| Dynamode U.K. Limited | Wholesale & retail | 1995 |
| E Z Day Ltd | Other services | 2025 |
| E-Haus REC Limited | Professional & scientific | 2024 |
| Eagle’S Wing Therapies Ltd | Health & social care | 2025 |
| Easisigns Limited | Manufacturing | 1993 |
| Eastcroft Limited | Professional & scientific | 2020 |
| Eclipse Professional Services Ltd | Transport & logistics | 2024 |
| Ecls Translations Limited | Professional & scientific | 2016 |
| Ecoble Ltd | Wholesale & retail | 2024 |