| 'Arapuna Healthcare Services Ltd | Health & social care | 2021 |
| 10K Teeth Limited | Education | 2020 |
| 110 Consultancy Ltd | Professional & scientific | 2025 |
| 17 Signals Ltd | Financial services | 2013 |
| 1705 Design Limited | Information & communication | 2009 |
| 1821 Limited | Real estate | 2022 |
| 19B Property Ltd | Real estate | 2020 |
| 1DELIVEREEE Ltd | Transport & logistics | 2025 |
| 1ST Beginnings Ltd | Health & social care | 2024 |
| 1ST Enable Ltd | Health & social care | 2012 |
| 210 Dental Clinic Ltd | Health & social care | 2024 |
| 240 Digital Ltd | Information & communication | 2016 |
| 27 Advisory Ltd | Information & communication | 2018 |
| 3 C'S Group Liverpool Limited | Water & waste | 2014 |
| 3A Workforce Limited | Construction | 2024 |
| 3DG Security Ltd | Administrative & support | 2024 |
| 4 Paws Friendly Limited | Extraterritorial | 2016 |
| 40 Star Kebab Ltd | Hospitality | 2026 |
| 406 Dental Limited | Health & social care | 2023 |
| 4F Records Ltd | Other services | 2025 |
| 4T Technologies Ltd | Wholesale & retail | 2025 |
| 4TIFY Group Ltd | Financial services | 2024 |
| 4TIFY Ltd | Administrative & support | 2024 |
| 4TIFY Properties Ltd | Real estate | 2024 |
| 4TIFY Provisory Ltd | Administrative & support | 2024 |
| 5G Futures Limited | Extraterritorial | 2008 |
| 66 Phipps House Limited | Real estate | 2018 |
| 6SIX9 Ltd | Professional & scientific | 2019 |
| 8 Square Claims & Project Management Limited | Administrative & support | 2024 |
| 84SRA Ltd | Health & social care | 2023 |
| A & J Aquajet Limited | Water & waste | 2009 |
| A & J Blinds Limited | Manufacturing | 2009 |
| A & J Construction Services Ltd | Professional & scientific | 2024 |
| A & R Flooring Ltd | Wholesale & retail | 2018 |
| A a Property NW Limited | Real estate | 2025 |
| A C Bowen Ltd | Health & social care | 2026 |
| A D S Landscaping Ltd | Administrative & support | 2025 |
| A Devlukia Dental Limited | Health & social care | 2021 |
| A Devlukia Properties Limited | Real estate | 2021 |
| A Engineering Limited | Construction | 2010 |
| A K Property (UK) Limited | Real estate | 2003 |
| A MHD Ltd | Hospitality | 2023 |
| A P Bowyer Motor Vehicle Repairs Ltd | Wholesale & retail | 2026 |
| A R Properties Scandi Limited | Real estate | 2025 |
| A S Major Engineering Ltd | Construction | 2024 |
| A V Crutchley Holdings Limited | Financial services | 2022 |
| A Wright Holdings Ltd | Financial services | 2025 |
| A&B Investment Properties Ltd | Real estate | 2026 |
| A&F Bloom Heritage Home Ltd | Health & social care | 2026 |
| A&N Health Limited | Health & social care | 2024 |
| A&R Dental Limited | Health & social care | 2026 |
| A-R-D Roofing and Cladding Ltd | Construction | 2025 |
| A.E.A. Installations Ltd | Construction | 2018 |
| A.G Dentistry Ltd | Health & social care | 2024 |
| A.G.S Sales Ltd | Wholesale & retail | 2025 |
| A.H.Allam ENT Limited | Health & social care | 2020 |
| A.I.P. (Ashfield Road and Ellerbeck Lane) Limited | Construction | 2014 |
| A.I.P. (Church Street) Limited | Construction | 2014 |
| A.I.P. (Derwent Riverside) Limited | Construction | 2014 |
| A.M.H Dental Innovations Limited | Health & social care | 2022 |
| A.V.Wilding (Hooton) Ltd | Financial services | 2022 |
| A41 Car Spa Ltd | Administrative & support | 2023 |
| AAA Residential Properties Ltd | Real estate | 2026 |
| Aaction Electronics Limited | Administrative & support | 1988 |
| Aaesthetics Ltd | Health & social care | 2018 |
| AAX Investments Ltd | Financial services | 2026 |
| Aaxd Ltd | Health & social care | 2021 |
| Aazen Ltd | Real estate | 2025 |
| Abacus Bookkeeping & Payroll Services Ltd | Professional & scientific | 2013 |
| Abbey Risk Management Solutions Limited | Professional & scientific | 2011 |
| Abbots Quay Management Company Limited | Real estate | 1995 |
| ABC Property Management (NW) Limited | Real estate | 2016 |
| Abcmodels Ltd | Wholesale & retail | 2025 |
| Abercare Limited | Health & social care | 2016 |
| Aberdare Care Limited | Health & social care | 2023 |
| Absolute Air Conditioning Ltd | Manufacturing | 2011 |
| AC Dental Limited | Health & social care | 2022 |
| Acacia Dental Practice Limited | Health & social care | 2012 |
| Access Locks & Key Shop Ltd. | Manufacturing | 2008 |
| Access Surveillance Network Ltd | Administrative & support | 2010 |
| Access Touch Rugby Ltd | Arts & recreation | 2024 |
| Accessible Reiki Ltd | Health & social care | 2020 |
| Accident Managed Services (NW) Limited | Administrative & support | 2024 |
| Ace Trusted Properties Limited | Real estate | 2023 |
| Acieca Limited | Professional & scientific | 2017 |
| Acoustic Design & Control Limited | Professional & scientific | 2004 |
| ACP Dental Limited | Health & social care | 2024 |
| ACP Northern Limited | Real estate | 2024 |
| Acpc Promotions Ltd | Hospitality | 2025 |
| Acpuk Ltd | Transport & logistics | 2019 |
| Acta Data Ltd | Information & communication | 2022 |
| Activate Vending Limited | Wholesale & retail | 2026 |
| Actura Capital Ltd | Financial services | 2026 |
| AD & BD Properties Ltd | Real estate | 2026 |
| AD Concierge Ltd | Wholesale & retail | 2023 |
| Ad.Nh. Limited | Health & social care | 2025 |
| Adam Wood Ltd | Health & social care | 2021 |
| Adamou Collective Ltd | Real estate | 2025 |
| ADD1 Group LP | | 2018 |
| Adel Medical Limited | Health & social care | 2025 |