| A.O.N Propertys Ltd. | Real estate | 2017 |
| A.O.R Building Services Ltd | Construction | 2023 |
| A.P.F. Gears Limited | Administrative & support | 2011 |
| A.Pepe Ltd | Financial services | 2024 |
| A.R Groups Limited | Wholesale & retail | 2025 |
| A.R.L MOT Centre Ltd | Wholesale & retail | 2020 |
| A.R.O Building and Maintenance Ltd | Manufacturing | 2025 |
| A.S.Beckwith Ltd | Construction | 2026 |
| A.S.Harrison Electrical Ltd | Professional & scientific | 2023 |
| A.S.K. Construction Services Ltd | Construction | 2001 |
| A.Smith Joinery Ltd | Manufacturing | 2023 |
| A.Sullivan NW Ltd | Wholesale & retail | 2024 |
| A.W.Property Services Northwest Ltd | Real estate | 2025 |
| A/Z Frozen Foods Ltd | Wholesale & retail | 2014 |
| A1 Aesthetics Laboratory Limited | Manufacturing | 2018 |
| A1 Auto Repair Center Limited | Wholesale & retail | 2013 |
| A1 Brickwork & Construction Ltd | Construction | 2009 |
| A1 Car and Commercial Vehicle Services Limited | Wholesale & retail | 2011 |
| A1 Chemical Waste Management Ltd | Water & waste | 2011 |
| A1 Construction (NW) Limited | Construction | 2015 |
| A1 Contracting (NW) Ltd | Construction | 2025 |
| A1 CWM Investments Ltd | Financial services | 2023 |
| A1 Dampproofing GB Ltd | Construction | 2018 |
| A1 Developments (NW) Ltd | Construction | 2024 |
| A1 IT Limited | Information & communication | 2023 |
| A1 Living Solutions Ltd | Real estate | 2025 |
| A1 MOT Centre Liverpool Ltd | Wholesale & retail | 2018 |
| A1 Plant Hire (N.W.) Limited | Administrative & support | 2012 |
| A1 Plant Hire Limited | Administrative & support | 2012 |
| A1 Roofing (NW) Limited | Construction | 2017 |
| A1 Settle Cars Limited | Administrative & support | 2019 |
| A1 Supercars Limited | Wholesale & retail | 2014 |
| A1 Vending Machines Ltd | Wholesale & retail | 2024 |
| A1 Windscreens (NW) Limited | Wholesale & retail | 2008 |
| A1CWM Holdings Limited | Financial services | 2023 |
| A1PALLETRETURNS Ltd | Wholesale & retail | 2026 |
| A2 Joinery Ltd | Manufacturing | 2023 |
| A2 Property Ltd | Real estate | 2025 |
| A2 Tiling Ltd | Construction | 2026 |
| A2B Direct Courier Services Ltd | Transport & logistics | 2026 |
| A2B Mobility Limited | Wholesale & retail | 2020 |
| A2B Social Care Recruitment Ltd | Administrative & support | 2025 |
| A2BROKER FX Ltd | Financial services | 2025 |
| A2W2 Limited | Administrative & support | 2023 |
| A2Z Engineering Consultancy Limited | Real estate | 2021 |
| A2Z L4 Ltd | Wholesale & retail | 2025 |
| A2Z Store Walton Road Ltd | Wholesale & retail | 2026 |
| A3 Diversify Health and Wellbeing Limited | Health & social care | 2024 |
| A3 Media Ltd | Professional & scientific | 2018 |
| A3C Premier Ltd | Real estate | 2024 |
| A4 Copy Technology (UK) Limited | Administrative & support | 2006 |
| A4A Logistic Ltd | Transport & logistics | 2020 |
| A4A Property Ltd | Real estate | 2024 |
| A4N Properties Ltd | Hospitality | 2026 |
| AA Barbers Merseyside Ltd | Other services | 2025 |
| AA Building Ltd | Construction | 2021 |
| AA Direct Services Limited | Health & social care | 2021 |
| AA DOC Ltd. | Education | 2010 |
| AA Dover Ltd | Wholesale & retail | 2024 |
| AA Fencing UK Limited | Manufacturing | 2009 |
| AA Health and Nutrition CIC | Education | 2023 |
| AA Holdings Management Ltd | Real estate | 2025 |
| AA Matthew & Co Limited | Professional & scientific | 1999 |
| AA Media & Marketing Ltd | Professional & scientific | 2025 |
| AA Properties 25 Ltd | Real estate | 2025 |
| AA Property Management and Renovations Ltd | Construction | 2025 |
| AA Radiology Ltd | Health & social care | 2017 |
| AAA Brothers Management Ltd | Real estate | 2024 |
| AAA Coffee Shop UK Limited | Hospitality | 2019 |
| AAA Investment Group Ltd | Real estate | 2020 |
| AAA Properties North West Limited | Real estate | 2016 |
| AAA Roofing Pros Ltd | Construction | 2025 |
| AAA Telecoms Ltd | Information & communication | 2022 |
| AAA US Limited | Professional & scientific | 2024 |
| AAA. Harvey Ltd | Real estate | 2023 |
| Aaar Property Developments Ltd | Construction | 2017 |
| AAB Design Ltd | Professional & scientific | 2020 |
| AAB Property and Maintenance Ltd | Construction | 2024 |
| AAB Property Maintenance LLP | | 2023 |
| Aabaced Ltd | Information & communication | 2025 |
| Aabyss Holdings Ltd | Financial services | 2024 |
| AAC Property Developments Ltd | Real estate | 2026 |
| AAC Property Holding Limited | Households | 2026 |
| Aachen Mount Pleasant Limited | Hospitality | 2008 |
| Aadhashaa Ltd | Transport & logistics | 2025 |
| Aadhya Mini Mart Limited | Wholesale & retail | 2023 |
| Aadhyara Trading Limited | Real estate | 2025 |
| Aadil & Sons Ltd | Wholesale & retail | 2015 |
| Aadun Ltd | Wholesale & retail | 2023 |
| Aadvark Flooring & Lighting Ltd | Construction | 2015 |
| Aaem UK Holdings Limited | Financial services | 2024 |
| AAF One Ltd | Professional & scientific | 2015 |
| AAF One Properties Ltd | Real estate | 2019 |
| AAG Contracting Limited | Construction | 2002 |
| AAH Motors Limited | Wholesale & retail | 2018 |
| Aahil & Co Accountants Ltd | Professional & scientific | 2022 |
| Aahil Accountants Ltd | Professional & scientific | 2021 |
| AAJ Bestfood Ltd | Wholesale & retail | 2026 |
| Aalif 8 Ltd | Construction | 2025 |
| Aamir Design Limited | Professional & scientific | 1993 |