| A&V Goddesses Lounge Limited | Other services | 2023 |
| A&V Hospitality Limited | Hospitality | 2023 |
| A&V Motor Accident Repairs Ltd | Wholesale & retail | 2019 |
| A&V Partners Ltd | Construction | 2021 |
| A&V Plastering Limited | Construction | 2018 |
| A&V Plumbing and Heating Ltd | Construction | 2022 |
| A&V Sharma Private Limited | Construction | 2024 |
| A&W Clothing Ltd | Wholesale & retail | 2021 |
| A&W Construction and Renovation Ltd | Construction | 2023 |
| A&W General Trading & Properties Limited | Real estate | 2021 |
| A&W Leasing Limited | Administrative & support | 2009 |
| A&W Marketing Ltd | Information & communication | 2025 |
| A&W New Energy and Material Co., Ltd | Manufacturing | 2023 |
| A&W Property Holdings Ltd | Real estate | 2025 |
| A&Wsuites Ltd | Households | 2025 |
| A&X Limited | Information & communication | 2025 |
| A&Y 9096 Ltd | Wholesale & retail | 2020 |
| A&Y Consultancy Ltd | Professional & scientific | 2023 |
| A&Y Dawood Properties Ltd | Real estate | 2020 |
| A&Y Moussawi Ltd | Construction | 2019 |
| A&Y Projects Limited | Financial services | 2019 |
| A&Y Refurbish Ltd | Construction | 2024 |
| A&Y Services Ltd | Construction | 2015 |
| A&Y Tailoring Service Limited | Other services | 2008 |
| A&Y Vision Studio Ltd | Wholesale & retail | 2021 |
| A&Z (Knightsbridge) Ltd | Real estate | 2021 |
| A&Z 1 Properties Limited | Real estate | 2024 |
| A&Z Accountancy Limited | Professional & scientific | 2016 |
| A&Z Advisors Limited | Professional & scientific | 2020 |
| A&Z Business Services Ltd | Professional & scientific | 2026 |
| A&Z Clothing Ltd | Wholesale & retail | 2024 |
| A&Z Construction Ltd | Construction | 2020 |
| A&Z Decorations Limited | Other services | 2020 |
| A&Z Development Group Ltd | Construction | 2022 |
| A&Z Farm (Lincoln) Limited | Agriculture & fishing | 2022 |
| A&Z Future Ltd | Construction | 2025 |
| A&Z Garments Ltd | Other services | 2020 |
| A&Z Labs Ltd | Information & communication | 2025 |
| A&Z Logistics Ltd | Wholesale & retail | 2019 |
| A&Z Motors Ltd | Wholesale & retail | 2025 |
| A&Z Painters Ltd | Construction | 2022 |
| A&Z Quality DRY Cleaners Ltd | Administrative & support | 2023 |
| A&Z Theatre CIC | Administrative & support | 2025 |
| A&Z UK Property Ltd | Real estate | 2023 |
| A' Sora Lella Ltd | Hospitality | 2020 |
| A'Chruach Wind Farm Limited | Construction | 2008 |
| A'Do'Re Fritto Ltd | Hospitality | 2020 |
| A'Ila Modaraba Limited | Real estate | 2016 |
| A'Lake Holdings Limited | Financial services | 2023 |
| A'Lake Limited | Construction | 2010 |
| A'Lake Slough Limited | Real estate | 2023 |
| A'Lake South Woodford Limited | Real estate | 2023 |
| A'Lake Urban Investments Limited | Real estate | 2023 |
| A'Luenia Ltd | Wholesale & retail | 2020 |
| A'Miga Gymnastics Ltd | Arts & recreation | 2025 |
| A'Noghena Investments Limited | Real estate | 2019 |
| A'Rili Co Ltd | Wholesale & retail | 2025 |
| A'S Barbers N22 Ltd | Other services | 2025 |
| A'S Coffee Shop Ltd | Hospitality | 2018 |
| A'S Filipino Pastries and Catering Services Limited | Hospitality | 2024 |
| A'S Miracle Kitchen Ltd | Hospitality | 2021 |
| A'S Motorcycle Parts Ltd | Wholesale & retail | 2023 |
| A'S Soft Play Centre Ltd | Arts & recreation | 2018 |
| A'Scakes Limited | Manufacturing | 2025 |
| A'Sheriv Intelligent Marine Technologies Ltd. | Information & communication | 2025 |
| A'Shore Thing Ltd | Extraterritorial | 2025 |
| A'Wale Decor Ltd | Professional & scientific | 2024 |
| A'Wrld Ltd | Professional & scientific | 2020 |
| A'Z Paradise Kitchen Limited | Hospitality | 2026 |
| A+ Building Services Limited | Energy | 2007 |
| A+ Design Limited | Administrative & support | 2006 |
| A+E Records Limited | Other services | 1983 |
| A+F Methods Limited | Information & communication | 2004 |
| A-1 Audiology Ltd | Health & social care | 2024 |
| A-1 Value Store Ltd | Wholesale & retail | 2021 |
| A-2-Z World Foods Ltd | Wholesale & retail | 2022 |
| A-Accountancy Ltd | Professional & scientific | 2020 |
| A-Accounts Ltd | Professional & scientific | 2011 |
| A-Advance Limited | Professional & scientific | 2023 |
| A-Ag Holdco, Limited | Financial services | 2024 |
| A-Ag Midco, Limited | Financial services | 2024 |
| A-Ag Topco, Limited | Financial services | 2024 |
| A-Algo Ltd | Information & communication | 2022 |
| A-Alliance UK Ltd | Financial services | 2015 |
| A-App Investment Limited | Extraterritorial | 2025 |
| A-Arora Limited | Financial services | 2023 |
| A-Assistance Ltd | Professional & scientific | 2023 |
| A-Aston Technologies Limited | Information & communication | 2025 |
| A-B (Bath) Ltd | Transport & logistics | 2026 |
| A-B Cargo Express Ltd | Transport & logistics | 2012 |
| A-B Group Services Limited | Wholesale & retail | 2018 |
| A-B Hestetransport Invest Limited | Extraterritorial | 2025 |
| A-B Hestetransport Limited | Extraterritorial | 2025 |
| A-B Investment Sweden Limited | Extraterritorial | 2025 |
| A-B Labs Limited | Information & communication | 2023 |
| A-B Sweden Limited | Extraterritorial | 2025 |
| A-B-D-S 02 Ltd | Construction | 2021 |
| A-Beautifulwoman Ltd | Wholesale & retail | 2024 |
| A-Boo Crew Limited | Wholesale & retail | 2024 |
| A-C Faur Ltd | Construction | 2023 |