| Apollo Claims Ltd | Professional & scientific | 2006 |
| Apollo Court Consulting Limited | Administrative & support | 2020 |
| Apollo Management Consulting Ltd | Professional & scientific | 2021 |
| Apollo PAY Limited | Administrative & support | 2020 |
| Apollo Personnel Ltd | Administrative & support | 2011 |
| Apollo Project Management Services Ltd | Construction | 2017 |
| Apollo Scientific Ltd | Manufacturing | 1993 |
| Apollo Taxi Claims Ltd | Other services | 2026 |
| Apollo-Rose Orthopaedics Ltd | Health & social care | 2015 |
| Apordo Ltd | Information & communication | 2020 |
| Apostle Global Security Services Limited | Administrative & support | 2022 |
| Apostrophe Ltd | Professional & scientific | 2019 |
| Apothec Millenium Ltd | Real estate | 2021 |
| App Business Solutions Ltd | Information & communication | 2021 |
| App Focus Limited | Information & communication | 2008 |
| App Lovers Ltd | Construction | 2022 |
| App Services UN Limited | Information & communication | 2020 |
| APP1STOP.COM Ltd | Information & communication | 2015 |
| APP3 Technology Limited | Wholesale & retail | 2025 |
| APP4 Developments Limited | Information & communication | 2014 |
| Appa Stay Ltd | Hospitality | 2022 |
| Appaloosa Ltd | Administrative & support | 2022 |
| Apparel Apparel Limited | Wholesale & retail | 2024 |
| Apparel Brands Limited | Wholesale & retail | 2015 |
| Apparel Hub Ltd | Wholesale & retail | 2019 |
| Apparel Matters Limited | Professional & scientific | 2003 |
| Apparel ONE10 Ltd | Wholesale & retail | 2025 |
| Apparel Pink Ltd | Wholesale & retail | 2026 |
| Apparel Trader Ltd | Construction | 2022 |
| Apparelisedfuniture Limited | Wholesale & retail | 2024 |
| Appas by Abdu Limited | Hospitality | 2024 |
| Appelboom Ltd | Extraterritorial | 2021 |
| Appetite Business Systems Limited | Information & communication | 2013 |
| Appex Cuisine Limited | Hospitality | 2026 |
| Appexdeals Ltd | Wholesale & retail | 2025 |
| Appflux Ltd | Information & communication | 2026 |
| Appfrika Ltd | Information & communication | 2025 |
| Apple Acoustics Limited | Extraterritorial | 2025 |
| Apple Blossom Property Investment Ltd | Real estate | 2021 |
| Apple Childcare Vouchers Limited | Other services | 2008 |
| Apple Clinic Ltd | Manufacturing | 2016 |
| Apple Courier Ltd | Transport & logistics | 2025 |
| Apple Distribution Internation Ltd | Wholesale & retail | 2025 |
| Apple Enterprise International Limited | Transport & logistics | 2005 |
| Apple Green Properties Limited | Real estate | 2012 |
| Apple Insurance Services Ltd | Financial services | 2019 |
| Apple Large Ltd | Wholesale & retail | 2022 |
| Apple Rabbit (UK) Co., Ltd | Extraterritorial | 2020 |
| Apple Residential Limited | Households | 2000 |
| Apple Samsung Ltd | Wholesale & retail | 2025 |
| Apple Transport Limited | Transport & logistics | 2023 |
| Apple Web Task Ltd | Construction | 2021 |
| Appleboar Ltd | Information & communication | 2025 |
| Appleby Bowers Creative Associates Limited | Arts & recreation | 2000 |
| Appleby Castle Entertainment Limited | Administrative & support | 2013 |
| Appleby Castle Holiday Cottages Limited | Hospitality | 2017 |
| Appleby Castle Limited | Administrative & support | 1997 |
| Appleby Law Limited | Extraterritorial | 2021 |
| Appleby Media Limited | Information & communication | 2011 |
| Appleby's Hearty Refreshment Ltd | Hospitality | 2011 |
| Appleby's Specialities Ltd | Wholesale & retail | 2015 |
| Appleford Properties Ltd | Real estate | 1991 |
| Applehawk Limited | Real estate | 2026 |
| Apples & Cherries Day Nursery Limited | Education | 2016 |
| Applesky (Allerton) Ltd | Real estate | 2012 |
| Applesky (Properties) Ltd | Real estate | 2019 |
| Applesky Limited | Real estate | 2014 |
| Appleton Commercial Engineering Limited | Transport & logistics | 1981 |
| Appleton Connections Ltd | Professional & scientific | 2018 |
| Appleton Village Management Company Ltd | Households | 2016 |
| Applewise Service Ltd | Administrative & support | 2025 |
| Appliance Care Manchester Limited | Other services | 2025 |
| Appliance Direct Limited | Transport & logistics | 2006 |
| Appliance Repairs & Installs Ltd | Other services | 2018 |
| Appliance Repairs & Spares Ltd | Wholesale & retail | 2026 |
| Appliance Services North West Ltd | Construction | 2024 |
| Appliance World Online Limited | Wholesale & retail | 2003 |
| Appliances Northwest Ltd | Wholesale & retail | 2019 |
| Appliances World (UK) Limited | Transport & logistics | 2004 |
| Applica Holdings Limited | Financial services | 2018 |
| Applica Resourcing Limited | Administrative & support | 2018 |
| Applicate Resins Ltd | Administrative & support | 2023 |
| Applied Cooling Systems Manchester Ltd | Construction | 2012 |
| Applied Elec-Tech Services Ltd | Construction | 2025 |
| Applied Electrothermal Energy and Windings Ltd | Manufacturing | 2025 |
| Applied Fusion Limited | Manufacturing | 1979 |
| Applied Image Recognition Limited | Information & communication | 2004 |
| Applied Marine Controls Limited | Information & communication | 1983 |
| Applied MCT Limited | Health & social care | 2018 |
| Applied MCT Services Limited | Health & social care | 2018 |
| Applied Sentience Ltd | Administrative & support | 2025 |
| Applied Synergy Solutions Limited | Manufacturing | 2024 |
| Applied Waste Techniques Limited | Water & waste | 2013 |
| Applique Apparel Limited | Wholesale & retail | 2005 |
| Apply for Education Ltd | Education | 2025 |
| Applyhub Ltd | Information & communication | 2025 |
| Appmint-Ai Limited | Information & communication | 2025 |
| Appna Estates Limited | Real estate | 2002 |
| Appntech Outlet Ltd | Wholesale & retail | 2020 |
| Appoint Recruitment Solutions Ltd | Administrative & support | 2009 |