| Archer Fire & Security Limited | Construction | 2005 |
| Archer Legacy Planning Ltd | Administrative & support | 2025 |
| Ardezo Limited | Construction | 2024 |
| Ardwick FC Ltd | Arts & recreation | 2025 |
| Ardwick Training Centre Ltd | Education | 2024 |
| Area Automotive Ltd | Wholesale & retail | 2015 |
| Arielto Limited | Construction | 2026 |
| Aries IT Ltd | Information & communication | 2018 |
| Arifsum Ltd | Wholesale & retail | 2024 |
| ARK of Hope | Administrative & support | 2016 |
| ARM Padel Club Ltd | Arts & recreation | 2025 |
| Armistead Property Limited | Construction | 2006 |
| Aromos Limited | Professional & scientific | 2018 |
| Art Trade Ltd | Wholesale & retail | 2026 |
| Artechlabs Ltd | Information & communication | 2023 |
| Artingstall & Hobson Limited | Wholesale & retail | 2018 |
| Artisan Resin Drives & Landscaping Ltd | Administrative & support | 2018 |
| Artisanal Conjecture Ltd | Manufacturing | 2015 |
| Artiste Hub Ltd | Arts & recreation | 2026 |
| Arundel Tree Surgery Limited | Administrative & support | 2026 |
| Aryluxe Limited | Hospitality | 2023 |
| AS Hyde Ltd | Hospitality | 2022 |
| ASB Property Group Limited | Real estate | 2022 |
| Asgard Engineering Limited | Manufacturing | 2000 |
| ASH Skincare Limited | Wholesale & retail | 2024 |
| Ashes Lane Playgroup Ltd | Health & social care | 2016 |
| Ashton Under Lyne Rugby Football Club Limited | Arts & recreation | 2012 |
| Ashworth Estates Limited | Real estate | 2016 |
| Ashworth Filament Yarns Limited | Professional & scientific | 2010 |
| Asian Flavors Haven Limited | Hospitality | 2023 |
| Asil Property Investments Ltd | Real estate | 2018 |
| Askew Entertainment Management Ltd | Professional & scientific | 2024 |
| ASM Auto Services Ltd | Wholesale & retail | 2026 |
| Aspen Film Productions Ltd | Information & communication | 2022 |
| Asset Imaging Ltd. | Health & social care | 2019 |
| Assi Clinical Solutions Ltd | Public administration | 2026 |
| Assist My Finances Ltd | Professional & scientific | 2025 |
| Astill Associates Ltd | Professional & scientific | 2015 |
| Astra Contractors Ltd | Construction | 2021 |
| ASY Pipefitting and Construction Ltd | Construction | 2025 |
| Athena Adviser Support Limited | Professional & scientific | 2026 |
| Atkinson Technical Group Limited | Manufacturing | 2000 |
| Atlantis Creative Designs Ltd | Real estate | 2020 |
| Atlas Logistics Associates LLP | | 2009 |
| Atom Scientific Ltd | Manufacturing | 2010 |
| Atomic Consulting (NW) Limited | Professional & scientific | 2026 |
| Audio Media Group Limited | Information & communication | 2019 |
| Aurora Advanced Medical Aesthetics Ltd | Other services | 2025 |
| Auto Glaziers Ltd | Wholesale & retail | 2026 |
| Auunique Ltd | Professional & scientific | 2024 |
| AVA High Tech Ltd | Information & communication | 2023 |
| Available Housing Ltd | Real estate | 2025 |
| Avanti Autocare Ltd | Wholesale & retail | 2019 |
| AVK Syddal Limited | Manufacturing | 1993 |
| Awaydaysyt Ltd | Information & communication | 2024 |
| Axis 1 Solutions Limited | Professional & scientific | 2006 |
| Axis Health Abroad Limited | Professional & scientific | 2025 |
| Axuparla Ltd | Transport & logistics | 2026 |
| Ayesha Saree Emporium Limited | Wholesale & retail | 2026 |
| Aykiz Enterprises Limited | Real estate | 2024 |
| Azan Muheeb Ltd | Wholesale & retail | 2024 |
| Azksolutions Ltd | Wholesale & retail | 2021 |
| B & P Enterprise Solutions Ltd | Professional & scientific | 2024 |
| B. & a. Susca Limited | Manufacturing | 1989 |
| B.S Distribution Limited | Transport & logistics | 2004 |
| BA Property Consultants Ltd | Professional & scientific | 2007 |
| Back Home Chai Limited | Hospitality | 2025 |
| BAD Bread Pizza Co. Ltd | Hospitality | 2026 |
| Bagwala Ltd | Administrative & support | 2018 |
| BAK Contracts (Blackpool) Limited | Other services | 2018 |
| Baleta Limited | Other services | 2023 |
| Ballon Door Ltd | Professional & scientific | 2010 |
| Bambie Beauty Ltd | Wholesale & retail | 2025 |
| Bancroft Amenities Limited | Administrative & support | 2002 |
| Bann Residential Limited | Real estate | 2022 |
| Banoful Sweet Hyde Limited | Manufacturing | 2023 |
| Barbers Express (UK) Ltd | Other services | 2009 |
| Bargain Hyde Store Ltd | Wholesale & retail | 2023 |
| Bargain Trolly UK Ltd | Wholesale & retail | 2022 |
| Bark to the Future Ltd | Extraterritorial | 2026 |
| Baroque Developments Ltd | Construction | 2025 |
| Baroque Properties Limited | Real estate | 2026 |
| Barrabrith Limited | Extraterritorial | 2024 |
| Barwoods Bedrooms Limited | Manufacturing | 2001 |
| Bashpata Ltd | Hospitality | 2025 |
| Basic Food Ltd | Wholesale & retail | 2024 |
| Basin Management Ltd | Administrative & support | 2013 |
| Batch Sports Therapy Limited | Arts & recreation | 2022 |
| Batneec Development Services Limited | Professional & scientific | 2003 |
| Baxter Morgan Limited | Professional & scientific | 2017 |
| Bayleaf Indian Cuisine Limited | Hospitality | 2025 |
| Baytree Design Consultants Limited | Professional & scientific | 2025 |
| BB Granulation Services Ltd | Manufacturing | 2018 |
| BDG Energy Limited | Professional & scientific | 2024 |
| BDL Rigging Ltd | Construction | 2023 |
| Beau Grace Ltd | Professional & scientific | 2026 |
| Beauty Serwice Ltd | Real estate | 2023 |
| Bedian Group Limited | Real estate | 2018 |
| BEE Creative Print Ltd | Manufacturing | 2015 |
| BEE Kids Limited | Professional & scientific | 2020 |