| 18 Aigburth Drive Management Company Limited | Other services | 1995 |
| 183DENTAL Ltd | Health & social care | 2017 |
| 2-8 Borough Road Limited | Real estate | 2024 |
| 222 Estates Limited | Real estate | 2016 |
| 365 Asset Management Limited | Real estate | 2015 |
| 4L Rocks Ltd | Administrative & support | 2024 |
| 4LIFE Operatives Ltd | Construction | 2015 |
| 4LR Ltd | Administrative & support | 2024 |
| 53 Degrees North Ltd | Information & communication | 2008 |
| 7 Whiston Village Ltd | Hospitality | 2025 |
| A C Jordan Wealth Management Ltd. | Professional & scientific | 2017 |
| A O'Rourke Limited | Financial services | 2011 |
| A.B.S. (NW) Ltd | Construction | 2025 |
| A.E. Holland Memorials Ltd | Manufacturing | 2017 |
| A.G.E. Compressor Services Limited | Arts & recreation | 1983 |
| A.H. Knight Asia Laboratory Ltd. | Professional & scientific | 1996 |
| A.H. Knight Asia Ltd. | Professional & scientific | 1996 |
| A.P Build and Development Ltd | Construction | 2021 |
| A.W Catering & Private Dining Ltd | Hospitality | 2025 |
| A2 Padel Ltd | Arts & recreation | 2026 |
| Aardvarc Electrical Engineers Limited | Construction | 2006 |
| Aasst Ltd | Wholesale & retail | 2025 |
| AB Energise Ltd | Construction | 2026 |
| Ab&Er Properties Ltd | Real estate | 2026 |
| Abacus Securities Ltd | Other services | 2002 |
| ABC Raws Ltd | Administrative & support | 2021 |
| ABM Healthcare Limited | Health & social care | 2025 |
| Abpl Properties Ltd | Real estate | 2025 |
| Accutiva Software Technologies Limited | Information & communication | 2002 |
| Acorn Business Services Limited | Professional & scientific | 2016 |
| Acoustic Rainhill Limited | Hospitality | 2022 |
| ACR GRP Limited | Real estate | 2018 |
| Acriter Software Limited | Information & communication | 2013 |
| Actionmakers Ltd | Professional & scientific | 2023 |
| Active Potential Limited | Health & social care | 2022 |
| Acute Solutions U.K. Limited | Energy | 2000 |
| Adam Consulting Engineers Ltd | Construction | 2017 |
| Adam Haircut NW Ltd | Other services | 2026 |
| Adam Nice Barber Ltd | Other services | 2022 |
| ADL Electrical (NW) Ltd | Construction | 2024 |
| ADL Electrical Contracting Ltd | Construction | 2011 |
| Adlec Property Limited | Construction | 2017 |
| Adlib Audio Limited | Arts & recreation | 1998 |
| ADS 1 Liverpool Ltd | Wholesale & retail | 2024 |
| ADS Liverpool Limited | Real estate | 2021 |
| ADSPV1 Ltd | Construction | 2016 |
| Adurkin&Sons Ltd | Construction | 2024 |
| Advanced Component Coating Solutions Ltd | Manufacturing | 2020 |
| Advanced Military Experience Ltd | Arts & recreation | 2020 |
| Advanced Workplace Training and Development Ltd | Education | 2026 |
| Advent DS Group Limited | Construction | 2025 |
| Advert Ltd | Wholesale & retail | 2022 |
| Aesthetics by Debbie LEE Ltd | Health & social care | 2025 |
| AEU Financial Services Limited | Financial services | 2026 |
| AFC Knowsley C.I.C. | Arts & recreation | 2020 |
| Affecta Ltd | Professional & scientific | 2023 |
| Affinity Care & Support Services Limited | Health & social care | 2019 |
| Affinity Properties Group Ltd | Health & social care | 2022 |
| Afterglow Retreats Ltd | Hospitality | 2024 |
| AGB CAD Services Ltd | Professional & scientific | 2016 |
| AGD Property Consultancy Limited | Real estate | 2020 |
| Agdp Media Limited | Professional & scientific | 2022 |
| Agito Transport Planning LLP | | 2011 |
| Aguaflo Ltd | Construction | 2006 |
| Ahira Estate Ltd | Real estate | 2024 |
| AI Digital PAY Ltd | Other services | 2025 |
| AI Recruitment Technologies Limited | Administrative & support | 2011 |
| Ailsa Holdings Ltd | Real estate | 2005 |
| AJ Sales and Lettings Limited | Real estate | 2018 |
| Ajda Limited | Professional & scientific | 2018 |
| AJH Partners 2 Limited | Professional & scientific | 2025 |
| AJH Partners Limited | Real estate | 2020 |
| Ajira Careers Ltd | Professional & scientific | 2026 |
| Ajml Gardening Ltd | Construction | 2024 |
| AJS Driving Skills Ltd | Education | 2024 |
| Akropolis Imports Merseyside Ltd | Manufacturing | 2010 |
| Al's Activity and Respite Centre C.I.C. | Health & social care | 2018 |
| Alara Community Arts CIC | Education | 2026 |
| Alara Entertainment Ltd | Arts & recreation | 2024 |
| Albion Windows & Doors Limited | Construction | 2026 |
| Alex Scott Marine Consultancy Ltd | Professional & scientific | 2006 |
| Alexander Estate Group Ltd | Real estate | 2025 |
| Alfred H Knight Consultancy Limited | Professional & scientific | 1996 |
| Alfred H Knight Eastern Europe Limited | Professional & scientific | 1989 |
| Alfred H Knight Energy Services Limited | Professional & scientific | 1986 |
| Alfred H Knight Ferrous Limited | Professional & scientific | 1953 |
| Alfred H Knight Foundation Limited | Education | 2022 |
| Alfred H Knight Overseas Holdings Limited | Professional & scientific | 1999 |
| Alfred H Knight Solid Fuels Limited | Professional & scientific | 2001 |
| Alfred H Knight UK Holdings Limited | Professional & scientific | 2001 |
| Alfred H. Knight Contracts Limited | Professional & scientific | 2000 |
| Alfred H. Knight Holdings Limited | Professional & scientific | 1985 |
| Alfred H. Knight International Limited | Professional & scientific | 1967 |
| Alifast (Commercial) Limited | Manufacturing | 2018 |
| Alifast (Group) Limited | Manufacturing | 2020 |
| ALL Things Essentials Ltd | Wholesale & retail | 2025 |
| Alliance Business Services UK Limited | Administrative & support | 2011 |
| Allium Holdings Limited | Financial services | 2023 |
| ALN Marketing Limited | Professional & scientific | 2019 |
| Alpha One Property Solutions Ltd | Real estate | 2020 |