| Avatar Night Club Limited | Arts & recreation | 2025 |
| AVB Contractors Ltd | Construction | 2026 |
| AVC (Liverpool) Limited | Wholesale & retail | 2016 |
| AVE Commercial Ltd | Other services | 2017 |
| Aveja Limited | Financial services | 2025 |
| Avela Developments LLP | | 2018 |
| Avela Home Service LLP | | 2011 |
| Avela Services Limited | Hospitality | 2011 |
| Avelier Beauty Ltd | Other services | 2025 |
| Avemir Limited | Wholesale & retail | 2024 |
| Avenard Couture Ltd | Manufacturing | 2014 |
| Avenir Family Investments Ltd | Real estate | 2023 |
| Avenside Ltd | Households | 2001 |
| Aventador Properties Ltd | Real estate | 2023 |
| Aventine Solutions UK Ltd | Construction | 2018 |
| Aventus Digital Limited | Professional & scientific | 2023 |
| Avenue 21 Bistro Ltd | Hospitality | 2025 |
| Avenue Beauty Ltd | Other services | 2021 |
| Avenue Construction (NW) Limited | Construction | 2019 |
| Avenue Estates M Limited | Real estate | 2018 |
| Avenue HQ Leeds Limited | Other services | 2017 |
| Avenue HQ Limited | Real estate | 2016 |
| Avenue HQ Liverpool Limited | Administrative & support | 2017 |
| Avenue HQ Liverpool SPS Limited | Real estate | 2018 |
| Avenueone Associates Limited | Real estate | 2015 |
| Averstone Legal Limited | Professional & scientific | 2026 |
| Avery Surveys Limited | Other services | 2004 |
| Avey Consultancy Ltd | Information & communication | 2015 |
| AVG Academy Limited | Education | 2021 |
| AVG Consulting Limited | Professional & scientific | 2021 |
| AVG Management & Consultancy Ltd | Real estate | 2020 |
| Aviagames Interactive Limited | Information & communication | 2020 |
| Aviary Court (Dove Road) Management Company Limited | Professional & scientific | 1991 |
| Aviator Tour Productions Limited | Information & communication | 2012 |
| Avid Engineering Services (NW) Ltd | Manufacturing | 2022 |
| Aviden Optical Consultancy Ltd | Health & social care | 2025 |
| Avies Computer Services Limited | Information & communication | 1994 |
| Avin SON Ltd | Wholesale & retail | 2022 |
| Avinly Limited | Real estate | 2022 |
| Aviorapay Ltd | Other services | 2026 |
| Avios Estates Ltd | Households | 2024 |
| Aviroy Care Group Ltd | Health & social care | 2025 |
| AVM Advisory Limited | Administrative & support | 2026 |
| AVM Property Ltd | Real estate | 2022 |
| AVN Care Limited | Health & social care | 2024 |
| Avo's Automotive Detailing Ltd | Administrative & support | 2025 |
| Avocado Social Media Group Limited | Professional & scientific | 2017 |
| Avofresh Ltd | Wholesale & retail | 2023 |
| Avon Richmond Flats Limited | Real estate | 1989 |
| Avondale Environmental Limited | Water & waste | 1990 |
| Avondale Gardening Ltd | Administrative & support | 2015 |
| AVP Services Ltd | Wholesale & retail | 2018 |
| Avrilea Ltd | Manufacturing | 2024 |
| Avrin Pharma Ltd | Professional & scientific | 2015 |
| Avro Films Limited | Information & communication | 2013 |
| Avrora NW Ltd | Wholesale & retail | 2021 |
| AVS News Ltd | Other services | 2014 |
| AVS Water Compliance Ltd | Construction | 2025 |
| Avventura Investments Ltd | Real estate | 2017 |
| Avvm Express Ltd | Wholesale & retail | 2026 |
| Avyra Gymwear Ltd | Wholesale & retail | 2026 |
| AW Inspection Ltd | Construction | 2024 |
| AW Mcgregor Property Limited | Real estate | 2025 |
| Awadtransport Ltd | Transport & logistics | 2023 |
| Awake Alpha Retreats Limited | Other services | 2024 |
| Awake Architects Limited | Professional & scientific | 2008 |
| Awakened Souls Events Ltd | Hospitality | 2020 |
| Award Empire Limited | Real estate | 2023 |
| Award Heating Services Limited | Construction | 2005 |
| Awbr Builders Ltd | Construction | 2023 |
| Awbr Kitchen Fitting Ltd | Construction | 2023 |
| AWE Architectural Design Consultancy Limited | Professional & scientific | 2017 |
| AWE Property Consultancy Limited | Real estate | 2024 |
| Awelfa Properties LLP | | 2005 |
| Awesar UK Limited | Wholesale & retail | 2016 |
| Awesome Offers Ltd | Wholesale & retail | 2024 |
| AWG Liverpool Limited | Wholesale & retail | 2025 |
| AWH Ventilation Services Ltd | Construction | 2021 |
| Awild Prints Ltd | Professional & scientific | 2025 |
| AWK Engineers Ltd | Professional & scientific | 2020 |
| AWL Painting Ltd | Construction | 2010 |
| AWM Construction Services Limited | Professional & scientific | 2018 |
| AWP 2020 Limited | Real estate | 2020 |
| AWP Gardens & Fencing Limited | Administrative & support | 2024 |
| AWR 84 Transport Limited | Transport & logistics | 2017 |
| Awrae Ware Ltd | Manufacturing | 2020 |
| AWS Mortgages Ltd | Financial services | 2024 |
| AWW Properties Ltd | Real estate | 2020 |
| AX Games Ltd | Information & communication | 2020 |
| Axaw Production Ltd | Hospitality | 2020 |
| AXE Edge Construction Limited | Construction | 2025 |
| Axel Tech Limited | Hospitality | 2020 |
| Axelegro Ltd | Wholesale & retail | 2023 |
| Axelfit Systems Ltd | Manufacturing | 2025 |
| Axels Elixir Ltd | Manufacturing | 2021 |
| Axia Group Holdings Ltd | Financial services | 2025 |
| Axia Group Manchester Ltd | Real estate | 2025 |
| Axia Sports & Media Group Ltd | Professional & scientific | 2011 |
| Axia UK Holdings Ltd | Financial services | 2026 |
| Axiom Integrated Solutions Ltd | Wholesale & retail | 2025 |