| APC Enterprise Limited | Real estate | 2016 |
| APD Inventories Ltd | Administrative & support | 2025 |
| APD Maintenance Ltd | Real estate | 2017 |
| Apend Ltd | Construction | 2023 |
| Apercede IP Ltd | Administrative & support | 2026 |
| Apex Awards Ltd | Administrative & support | 2026 |
| Apex Barbers Limited | Other services | 2025 |
| Apex Cleaning Specialists Ltd | Administrative & support | 2024 |
| Apex Consultants and Advisory Ltd | Professional & scientific | 2019 |
| Apex Cure Ltd | Manufacturing | 2026 |
| Apex Dealz Ltd | Wholesale & retail | 2021 |
| Apex Estate Planners Ltd | Professional & scientific | 2017 |
| Apex Holding Capital Limited | Financial services | 2025 |
| Apex Holding Group Limited | Financial services | 2022 |
| Apex Light Services Limited | Construction | 2025 |
| Apex Motion Pictures Ltd | Information & communication | 2026 |
| Apex Project Services & Delivery Ltd | Professional & scientific | 2026 |
| Apex Property Lettings Limited | Real estate | 2019 |
| Apex Realty Limited | Real estate | 2016 |
| Apexcleaningservices Limited | Administrative & support | 2024 |
| APG Healthcare East Africa Limited | Health & social care | 2021 |
| APG Property Management Ltd | Real estate | 2024 |
| APH Events Ltd | Hospitality | 2017 |
| API Works Ltd | Construction | 2019 |
| Apical Constructions Ltd | Construction | 2016 |
| Apisrilankan Ltd | Professional & scientific | 2015 |
| APJ Thermal Insulation Ltd | Construction | 2017 |
| Apjt Builders Ltd | Construction | 2019 |
| Apkn Investments Ltd | Real estate | 2021 |
| APN Accounting Limited | Professional & scientific | 2023 |
| APN Enterprise Ltd | Transport & logistics | 2024 |
| Apna Khana Fresh Ltd | Hospitality | 2025 |
| Apollo Assets Limited | Real estate | 2016 |
| Apollo Hospital (UK) Limited | Professional & scientific | 2004 |
| Apollo Logistics VIP Service Ltd | Transport & logistics | 2018 |
| Apollo Payroll Ltd | Professional & scientific | 1998 |
| Apollo Vantage Limited | Financial services | 2025 |
| Apos Solutions Limited | Wholesale & retail | 2012 |
| App Synergies Ltd | Information & communication | 2019 |
| Appar Trend Ltd | Administrative & support | 2016 |
| Appetite Sales Limited | Information & communication | 2013 |
| Appin Court (Management) Limited | Households | 1974 |
| Apple Glazing Limited | Construction | 2014 |
| Apple Orchard Amenities Ltd | Households | 2024 |
| Apple Orchard Investments Ltd | Real estate | 2025 |
| Apple Orchard Limited | Real estate | 2009 |
| Apple Parking Ltd | Hospitality | 2023 |
| Apple Tree Core Limited | Financial services | 2025 |
| Apple Tree Day Nursery (UK) Limited | Education | 2004 |
| Apple Tree Films Ltd | Information & communication | 2022 |
| Applecore Education Ltd | Education | 2013 |
| Applecore International Limited | Education | 2020 |
| Applesam Ltd | Other services | 2021 |
| Appleseed Ltd | Professional & scientific | 1999 |
| Appleton Investments Limited | Real estate | 1959 |
| Appletree (Cheadle) Properties Limited | Real estate | 2025 |
| Appliancetek West Ltd | Other services | 2025 |
| Applican Limited | Information & communication | 2016 |
| Applied Consultants Limited | Information & communication | 1988 |
| Applying Agile Limited | Information & communication | 2011 |
| Appnova Limited | Administrative & support | 2005 |
| Approach Accountants Ltd | Professional & scientific | 2022 |
| Approcare Services Ltd | Health & social care | 2023 |
| Approved Motors Limited | Wholesale & retail | 2021 |
| Approved Professional Consultants Limited | Professional & scientific | 2023 |
| Approved Properties Limited | Real estate | 2025 |
| Appshay Ltd | Information & communication | 2019 |
| Appsolute Productions Limited | Arts & recreation | 2021 |
| Appspiro Ltd | Administrative & support | 2016 |
| Appviewx Europe Limited | Information & communication | 2017 |
| Apricot Property Management Limited | Real estate | 2018 |
| APS Realty Limited | Real estate | 2019 |
| APT Financials Limited | Financial services | 2017 |
| Apt-Aahar Food Services Ltd | Transport & logistics | 2018 |
| Aptadapt Limited | Information & communication | 2017 |
| Apteczka Limited | Health & social care | 2007 |
| APW Anaesthetic Consulting Limited | Health & social care | 2019 |
| Aqindex Limited | Information & communication | 2025 |
| AQM Vibe Holdings Limited | Real estate | 2021 |
| AQM Vibe Limited | Other services | 2020 |
| Aqua Commercial Estate Ltd | Real estate | 2021 |
| Aqua Equestrian Ltd | Arts & recreation | 2021 |
| Aqua Force Heating Ltd | Construction | 2014 |
| Aqua Sniff Ltd | Professional & scientific | 2025 |
| Aquabuild Ltd | Construction | 2020 |
| Aquadoir Ltd | Wholesale & retail | 2026 |
| Aquaflo Ltd | Wholesale & retail | 2015 |
| Aquama & Renewables Ltd. | Professional & scientific | 2004 |
| Aquamarine Solutions and Services Limited | Wholesale & retail | 2017 |
| Aquapro Ltd | Real estate | 2020 |
| Aquarians Care Ltd | Health & social care | 2024 |
| Aquascope Investments Ltd | Real estate | 2021 |
| Aquatic Therapeutics Limited | Health & social care | 2022 |
| Aquesta Limited | Hospitality | 2006 |
| Aquila Global Enterprises Limited | Information & communication | 2015 |
| Aquila Tech Consulting Limited | Information & communication | 2026 |
| Aquila Trade Solutions Ltd | Administrative & support | 2025 |
| Aquilon Software UK Limited | Information & communication | 2013 |
| Aqvn Ltd | Professional & scientific | 2015 |
| AR & KA Ltd | Extraterritorial | 2024 |