| Algorythix Ltd | Information & communication | 2025 |
| ALH Consultancy Services Limited | Professional & scientific | 2019 |
| Alhanhia Limited | Wholesale & retail | 2026 |
| Alibles Ltd | Manufacturing | 2024 |
| Alienwheel Ltd | Wholesale & retail | 2025 |
| Alif Technologies and Services Ltd | Information & communication | 2024 |
| Align Project Services Ltd | Professional & scientific | 2023 |
| Alignedge HR Ltd | Professional & scientific | 2025 |
| Alihappy Limited | Manufacturing | 2024 |
| Alipashayev Limited | Wholesale & retail | 2025 |
| Alita Trading Co., Ltd | Wholesale & retail | 2025 |
| Alive Nationwide Ltd | Health & social care | 2024 |
| Aliza Deals Limited | Wholesale & retail | 2025 |
| ALL Home Essentials Ltd | Wholesale & retail | 2021 |
| ALL in Aigc Ltd | Information & communication | 2025 |
| ALL Stars Child Care Services Ltd | Health & social care | 2023 |
| ALL Tails East Ltd | Wholesale & retail | 2026 |
| ALL Things Cake and Personal Ltd | Professional & scientific | 2020 |
| ALL Things ROI Ltd | Professional & scientific | 2025 |
| ALL Together Coaching Ltd | Other services | 2021 |
| ALL Vehicle Works & Parts Ltd | Wholesale & retail | 2026 |
| ALL Waxed OUT Ltd | Health & social care | 2023 |
| Allan Craig Ltd | Professional & scientific | 2023 |
| Allegro Commerce Co., Ltd | Wholesale & retail | 2025 |
| Allen Expert Consulting Limited | Professional & scientific | 2025 |
| Allen OIL Painting Ltd | Construction | 2025 |
| Alleyway Ventures Ltd | Wholesale & retail | 2024 |
| Allied RE Corporation Ltd | Financial services | 2015 |
| Alloway Consulting Limited | Information & communication | 2013 |
| Allrivers Trading Limited | Wholesale & retail | 2025 |
| Allround Training Solutions Limited | Public administration | 2022 |
| Allstar Marine Services Co., Ltd | Manufacturing | 2025 |
| Allycom Ltd | Other services | 2018 |
| ALM Retail Consultancy Ltd | Professional & scientific | 2024 |
| Alma Foam Converters Limited | Manufacturing | 2013 |
| Almaaly Academy Ltd | Professional & scientific | 2023 |
| Almajd Trading Co., Ltd | Manufacturing | 2024 |
| Almo Art Studio Ltd | Wholesale & retail | 2025 |
| Alni Housing CIC | Hospitality | 2023 |
| Alnoor Apparel Limited | Wholesale & retail | 2025 |
| Alora Wear Ltd | Wholesale & retail | 2026 |
| Alover Vubinh Limited | Wholesale & retail | 2025 |
| Alpha Centauri Limited | Information & communication | 2011 |
| Alpha Dream Ltd | Wholesale & retail | 2015 |
| Alpha Index Limited | Information & communication | 1999 |
| Alpha Luxe Property Ltd | Real estate | 2025 |
| Alpha Prime Services Ltd | Wholesale & retail | 2025 |
| Alphagroupsolutions Ltd | Professional & scientific | 2025 |
| Alphbean Ltd | Education | 2025 |
| Alpine Globe Traders Limited | Wholesale & retail | 2023 |
| Alpine White Limited | Wholesale & retail | 2017 |
| Alps SRL Ltd | Manufacturing | 2022 |
| ALT Consultants Ltd | Professional & scientific | 2023 |
| Altawareqe Trading & Shipping Co., Ltd | Administrative & support | 2023 |
| Altendorf Capital Ltd | Real estate | 2025 |
| Altieye Limited | Professional & scientific | 2025 |
| Altra Ltd | Wholesale & retail | 2025 |
| Altrsol Ltd | Financial services | 2024 |
| Altungok Trading Ltd | Financial services | 2025 |
| Alturant Sahuaro Ltd | Wholesale & retail | 2025 |
| Aluva Ltd | Manufacturing | 2022 |
| Alux Lifestyle & Daughters Limited | Real estate | 2025 |
| Alux Living & Daughters Ltd | Construction | 2021 |
| Alvarado Lacoma Ltd | Wholesale & retail | 2025 |
| Alverdon Trading Limited | Wholesale & retail | 2025 |
| Alwanmorocco Ltd | Wholesale & retail | 2025 |
| Always BE YOU Adventures Ltd | Wholesale & retail | 2025 |
| ALX37 Ltd | Education | 2025 |
| AM Sports and Coaching Ltd | Arts & recreation | 2025 |
| Amag Ltd | Wholesale & retail | 2024 |
| Amanda Trading Co. Ltd | Administrative & support | 2024 |
| Amanda Vision Limited | Wholesale & retail | 2025 |
| Amarc (2002) Limited | Arts & recreation | 2001 |
| Amarillo (UK) Holdings Group Limited | Wholesale & retail | 2023 |
| Amazing Fashion Ltd | Wholesale & retail | 2022 |
| Amazingfoodfactory Ltd | Manufacturing | 2023 |
| Ambay Ventures Limited | Real estate | 2020 |
| Amber Outlet Limited | Wholesale & retail | 2025 |
| Ambicution Enterprise Ltd | Information & communication | 2020 |
| Ambiover. Ltd | Wholesale & retail | 2025 |
| Amcor Industry Co., Ltd | Administrative & support | 2019 |
| Amdn Ltd | Information & communication | 2025 |
| Amecomoff Ltd | Wholesale & retail | 2024 |
| Ameera Atelier Limited | Wholesale & retail | 2026 |
| Amelia Elite Travel Ltd | Administrative & support | 2025 |
| Ameliela Ltd | Real estate | 2023 |
| Amenrva Strategy Limited | Professional & scientific | 2025 |
| American Group Limited | Wholesale & retail | 2026 |
| Americangaslogs Ltd | Wholesale & retail | 2025 |
| Amesto Limited | Administrative & support | 2020 |
| AMG Metals Ltd | Wholesale & retail | 2025 |
| AMH Partnership LLP | | 2025 |
| Amikay Technologies Ltd | Wholesale & retail | 2023 |
| Amir Jessica Ltd | Wholesale & retail | 2026 |
| AMJ Tech International Co., Ltd | Extraterritorial | 2015 |
| AMN Cleaning & Maintenance Ltd | Administrative & support | 2026 |
| Amoeba Special Machinery Equipment Co., Ltd. | Administrative & support | 2019 |
| Amore Familia Ltd | Wholesale & retail | 2025 |
| Amorlove Ltd | Wholesale & retail | 2025 |
| Amoya Ltd | Wholesale & retail | 2026 |