| Apex BID Management Ltd | Professional & scientific | 2025 |
| Apex Car Services Limited | Wholesale & retail | 2026 |
| Apex Cargo Ltd | Extraterritorial | 2022 |
| Apex Clothing Ltd | Manufacturing | 2018 |
| Apex Delivery Ltd | Transport & logistics | 2020 |
| Apex Detail Ltd | Wholesale & retail | 2026 |
| Apex Displays (Leicester) Limited | Manufacturing | 2005 |
| Apex Energy Consultants Ltd | Professional & scientific | 2024 |
| Apex Enterprise Ltd | Wholesale & retail | 2017 |
| Apex Imports Ltd | Wholesale & retail | 2023 |
| Apex Inns Ltd | Hospitality | 2024 |
| Apex Investments and Trading Ltd | Financial services | 2024 |
| Apex Lawyers Ltd | Professional & scientific | 2014 |
| Apex Lounge Ltd | Hospitality | 2026 |
| Apex News & Booze Ltd | Wholesale & retail | 2026 |
| Apex Retail Limited | Wholesale & retail | 2013 |
| Apex Scaffolding (Leicester) Limited | Construction | 2001 |
| Apex Secure Limited | Administrative & support | 2013 |
| Apex Software Innovations Ltd | Information & communication | 2007 |
| Apex Supplyco Ltd | Wholesale & retail | 2026 |
| Apex Waris Investments Ltd | Financial services | 2025 |
| APEX.99 Ltd | Wholesale & retail | 2024 |
| APEX78 Ltd | Transport & logistics | 2024 |
| Apexbuy Ltd | Wholesale & retail | 2026 |
| Apexhealth Professionals Limited | Administrative & support | 2025 |
| Apexhousemovers Ltd | Transport & logistics | 2026 |
| Apexx Fitting Ltd | Construction | 2024 |
| APF Management Solutions UK Ltd | Professional & scientific | 2013 |
| Apharo Global Ltd | Education | 2024 |
| Apharo Group Ltd | Professional & scientific | 2024 |
| Apharo Recruitment UK Ltd | Administrative & support | 2023 |
| Aphuranto Limited | Hospitality | 2012 |
| Aplw Medical Services Ltd | Health & social care | 2025 |
| APM Human Resources Limited | Extraterritorial | 2018 |
| APM360 Ltd | Professional & scientific | 2020 |
| APN Investments Limited | Construction | 2010 |
| Apna Corner Ltd | Wholesale & retail | 2025 |
| Apna Day Centre CIC | Health & social care | 2023 |
| Apna Junction Catering Ltd | Hospitality | 2024 |
| Apna Properties (Leicester) Ltd | Real estate | 2025 |
| Apna Punjab Meatshop Ltd | Wholesale & retail | 2025 |
| Apna Punjab Sweet Centre Ltd | Hospitality | 2018 |
| Apna Supermarket Ltd | Wholesale & retail | 2019 |
| Apnapan CIC | Health & social care | 2023 |
| Apne Builders UK Ltd | Construction | 2023 |
| Apni Roti Ltd | Manufacturing | 2009 |
| Apollo Care & Support Ltd | Administrative & support | 2018 |
| Apollo Hotels Ltd | Hospitality | 2025 |
| Apollo Investment Holdings Limited | Financial services | 2022 |
| Apollo Lettings Limited | Real estate | 2010 |
| Apollo Motor Trading Limited | Wholesale & retail | 2015 |
| Apollo Scaffolding (Leicester) Ltd | Construction | 2013 |
| Apollonian Real Estate Ltd | Real estate | 2025 |
| Apollonian Services Ltd | Administrative & support | 2019 |
| Apoorv Patel Photography Ltd | Information & communication | 2026 |
| Apostolos Chatzimeletiou Ltd | Professional & scientific | 2025 |
| Apostolos Nakas Thoracic Surgery Ltd | Health & social care | 2013 |
| Apothecaria Ltd | Health & social care | 2024 |
| Apothecary LAB Limited | Manufacturing | 2023 |
| Apoxy Ltd | Wholesale & retail | 2025 |
| App Associate Ltd | Health & social care | 2022 |
| Apparel & Textile Manufacturers Federation CIC | Administrative & support | 2022 |
| Apparel and Trades Bidding Consortium LLP | | 2026 |
| Apparel Leicester Ltd | Manufacturing | 2017 |
| Apparel Trading Ltd | Manufacturing | 2014 |
| Apparel UK Limited | Wholesale & retail | 2022 |
| Appercept Limited | Information & communication | 2012 |
| Appflo Limited | Information & communication | 2015 |
| Apphub UK Holdings Ltd | Financial services | 2022 |
| Applause Information Services Limited | Information & communication | 1995 |
| Apple Blossom Leicester Ltd | Real estate | 2018 |
| Apple Constructions Ltd | Construction | 2024 |
| Apple Fire & Security Limited | Construction | 2007 |
| Apple House (Leics) Ltd | Health & social care | 2016 |
| Apple Tree Homely Ltd | Real estate | 2020 |
| Applebee Commercial Contractors Limited | Administrative & support | 2011 |
| Applebird Co Ltd | Wholesale & retail | 2025 |
| Appleby-Sheekey Holdings Limited | Financial services | 2023 |
| Appleton Stores Ltd | Wholesale & retail | 2022 |
| Appletree Court Duffield RTM Company Ltd | Households | 2024 |
| Appletree Land Limited | Real estate | 2026 |
| Appletreewick Select Ltd | Hospitality | 2014 |
| Appleyard (Rothley) Limited | Households | 2019 |
| Appliance Outlet Ltd | Wholesale & retail | 2025 |
| Appliancehome Limited | Other services | 2002 |
| APPLICATION4YOU Ltd | Administrative & support | 2024 |
| Applied AI Solutions Ltd | Professional & scientific | 2026 |
| Apprentice Hotels Limited | Hospitality | 2026 |
| Apprentice Properties Limited | Real estate | 2025 |
| Approved Building Compliance Ltd | Professional & scientific | 2024 |
| Approved Building Consultancy Ltd | Professional & scientific | 2015 |
| Approved Repair Centre Limited | Wholesale & retail | 2021 |
| Approved Services (Midlands) Limited | Transport & logistics | 1999 |
| Approved Services (Sales) Limited | Wholesale & retail | 2020 |
| Apps Paediatrics Ltd | Health & social care | 2023 |
| Appsoft Limited | Information & communication | 2010 |
| Appsus Limited | Information & communication | 2021 |
| APPTEC24 Ltd. | Wholesale & retail | 2017 |
| Appvantage Solutions Limited | Professional & scientific | 2025 |
| APR Medical Ltd | Health & social care | 2018 |