| APG Ormskirk Limited | Real estate | 2023 |
| APG Park Terrace 2 Limited | Construction | 2022 |
| APG Park Terrace 5 Limited | Construction | 2024 |
| APG Prescot Limited | Real estate | 2026 |
| APG Property Ltd | Real estate | 2019 |
| APG Riverside Limited | Construction | 2026 |
| APG Scarisbrick Limited | Real estate | 2022 |
| APG Security Trustee Limited | Financial services | 2023 |
| APG Southport Limited | Real estate | 2024 |
| APG Trafalgar Limited | Real estate | 2024 |
| APGH1 Limited | Real estate | 2023 |
| APH Enterprise Ltd | Hospitality | 2025 |
| APH NW Services Ltd | Transport & logistics | 2025 |
| APH Padel Holdings Ltd | Arts & recreation | 2025 |
| Aphrohead Ltd | Wholesale & retail | 2005 |
| Apiary-Bee Ltd | Hospitality | 2022 |
| Apien Flow Ltd | Administrative & support | 2026 |
| Apis Consultancy Services Ltd | Professional & scientific | 2019 |
| APL (NW) Ltd | Construction | 2021 |
| APL GAS Services Ltd | Construction | 2021 |
| APL Housing Limited | Real estate | 2021 |
| APL Parking Limited | Administrative & support | 2009 |
| APL Telecoms Ltd | Information & communication | 2022 |
| APM (UK) Ltd | Wholesale & retail | 2013 |
| APM Finance Limited | Professional & scientific | 2021 |
| APM Offshore Services Ltd | Construction | 2016 |
| APM Trans Ltd | Transport & logistics | 2015 |
| APN Security Solutions Ltd | Construction | 2024 |
| Apoc Group Limited | Financial services | 2019 |
| Apoc IT Limited | Information & communication | 2024 |
| Apoc Property Limited | Hospitality | 2018 |
| Apollo Content Ltd | Information & communication | 2025 |
| Apollo Electrical Installations Limited | Construction | 2016 |
| Apollo Football Ltd | Education | 2025 |
| Apollo Generics Limited | Administrative & support | 2006 |
| Apollo Healthcare PVT Ltd | Health & social care | 2013 |
| Apollo Land and Building Limited | Real estate | 2019 |
| Apollo Maintenance Ltd | Transport & logistics | 2023 |
| Apollo Properties N/W Limited | Administrative & support | 2019 |
| Apollo Properties PVT Limited | Real estate | 2021 |
| Apollo Rescue Ltd | Wholesale & retail | 2014 |
| Apollo Roofing NW Ltd | Construction | 2024 |
| Apollo Select Ltd | Financial services | 2011 |
| Apollo Upvc Ltd | Wholesale & retail | 2004 |
| Apollo Ventures Group Ltd | Real estate | 2025 |
| Apostol George Ltd | Transport & logistics | 2020 |
| Apotheke LM Ltd | Wholesale & retail | 2021 |
| Apoyado Care Limited | Health & social care | 2025 |
| App Games Limited | Information & communication | 2011 |
| Appebite Bistro Ltd | Hospitality | 2024 |
| Apped Ltd | Information & communication | 2023 |
| Appfluent Accounting Ltd | Professional & scientific | 2020 |
| Appheart Limited | Information & communication | 2020 |
| Appleby Sales Limited | Wholesale & retail | 2025 |
| Applemill Limited | Real estate | 1985 |
| Appleton Road (Hale) Ltd | Real estate | 2018 |
| Appletree Estates Freeholds Limited | Real estate | 2012 |
| Appletree Estates Holdings Limited | Financial services | 2011 |
| Appletree Interiors (Liverpool) Limited | Construction | 2009 |
| Applewhitelabs Ltd | Wholesale & retail | 2025 |
| Appliance Repairs Direct Limited | Other services | 2023 |
| Appliances 2 U Limited | Wholesale & retail | 2024 |
| Applied Computing & Engineering Limited | Professional & scientific | 1987 |
| Applied Developments Ltd | Real estate | 2025 |
| Applied Nutrition PLC | Manufacturing | 2014 |
| Applifi Ltd | Information & communication | 2026 |
| Appraisal System Ltd | Information & communication | 2009 |
| Apprentishop Ltd | Education | 2025 |
| Approach Print Limited | Information & communication | 2012 |
| Approach Training Limited | Education | 2000 |
| Approved Building Services (NW) Limited | Construction | 2012 |
| Approved Electrical Solutions Limited | Construction | 2012 |
| Approved Lettings & Property Management Ltd | Real estate | 2014 |
| Apps Centre Technology Limited | Professional & scientific | 2025 |
| APR Decorating Ltd | Construction | 2026 |
| APR Projects Ltd | Real estate | 2022 |
| Apre Performance Ltd | Professional & scientific | 2025 |
| Aprel Concierge Ltd | Other services | 2025 |
| Apres Tree Ltd | Hospitality | 2023 |
| April Faith Consultancy Ltd | Administrative & support | 2022 |
| Aprés Music Limited | Arts & recreation | 2020 |
| APS Security and Electrical (NW) Limited | Wholesale & retail | 2025 |
| APS Security and Electrical Ltd | Wholesale & retail | 2007 |
| Apsara Beauty Limited | Other services | 2012 |
| Apstaf Limited | Professional & scientific | 2020 |
| Aptitude Recruitment Ltd | Administrative & support | 2023 |
| Aptly Consulting Ltd | Real estate | 2025 |
| AQ Hair and Beauty Salon Ltd | Other services | 2024 |
| Aqal Consultancy Ltd | Professional & scientific | 2020 |
| Aqcp Ltd | Real estate | 2024 |
| AQS Holdings Ltd | Professional & scientific | 2017 |
| Aqua Adventure Swims Limited | Administrative & support | 2021 |
| Aqua Commercial Limited | Real estate | 2015 |
| Aqua Creations Limited | Professional & scientific | 2018 |
| Aqua Heat Property Services Ltd | Construction | 2020 |
| Aqua Lake Limited | Wholesale & retail | 2024 |
| Aqua Mend Pool Repairs Ltd | Construction | 2025 |
| Aqua World (NW) Ltd | Other services | 2017 |
| Aqualogic (WC) Ltd | Professional & scientific | 2004 |
| Aquamarine Holistic Health Ltd | Health & social care | 2016 |