| Able Studios Limited | Professional & scientific | 2018 |
| Ablefield Limited | Administrative & support | 1994 |
| ABM (NW) Ltd | Hospitality | 2018 |
| ABM Homes (UK) Ltd | Real estate | 2016 |
| ABM Logistics Ltd | Transport & logistics | 2019 |
| ABM Wholesale Ltd | Wholesale & retail | 2023 |
| Abney Analytics Limited | Information & communication | 2022 |
| ABO Dania Ltd | Transport & logistics | 2024 |
| Abodebyjess Ltd | Real estate | 2024 |
| Abodial Ltd | Real estate | 2019 |
| Abott Structural Engineering Ltd | Professional & scientific | 2019 |
| Above & Beyond Tree & Garden Care Ltd | Administrative & support | 2026 |
| Above the Cloud Services Ltd | Information & communication | 2018 |
| ABP Management Ltd | Real estate | 2022 |
| ABP Technology Holdings Limited | Wholesale & retail | 2020 |
| ABP Technology Limited | Wholesale & retail | 2016 |
| Abpicks Ltd | Wholesale & retail | 2024 |
| Abraar.M Ltd | Wholesale & retail | 2023 |
| Abraham and Adam Co Ltd | Other services | 2019 |
| Abraham's Kitchen Ltd | Hospitality | 2026 |
| Abrahams Hill Properties Limited | Construction | 2025 |
| Abraxas Software Limited | Information & communication | 2017 |
| Abroad Dreams Real Estate Limited | Real estate | 2022 |
| ABS Civil Engineering Ltd | Construction | 2026 |
| Absk Buildings Ltd | Real estate | 2025 |
| Absolute Nexa Limited | Information & communication | 2002 |
| Absolute Cleaning Contractors Limited | Administrative & support | 2005 |
| Absolute Finishes NW Ltd | Construction | 2025 |
| Absolute Home Textiles Limited | Manufacturing | 2010 |
| Absolute Integrated Agency Ltd | Information & communication | 1999 |
| Absolute Invest Limited | Households | 2020 |
| Absolute K Limited | Construction | 2005 |
| Absolute Sales and Marketing Recruitment Limited | Administrative & support | 2003 |
| Absolute Water Gardens Limited | Administrative & support | 2022 |
| Absolutely Fabulous Salon Limited | Other services | 2021 |
| Absolutely Top Limited | Wholesale & retail | 2018 |
| Abstract Creative Screenprinters Limited | Manufacturing | 2003 |
| Abstract Flooring & Fit OUT NW Limited | Construction | 2018 |
| Abstract Head Hunters Limited | Administrative & support | 2019 |
| Abstract Scaffolding Limited | Construction | 2007 |
| Abtec Computer Solutions Ltd | Information & communication | 2002 |
| Abtm Associates Ltd | Extraterritorial | 2018 |
| ABX Consultancy Ltd | Professional & scientific | 2021 |
| Abys Franchise Limited | Hospitality | 2026 |
| AC (England) Limited | Health & social care | 2019 |
| AC - QC Ltd | Professional & scientific | 2013 |
| AC Accountancy Services (UK) Limited | Professional & scientific | 2013 |
| AC Build (North West) Limited | Construction | 2020 |
| AC Drillers Limited | Construction | 2024 |
| AC Logistics Solutions Limited | Transport & logistics | 2021 |
| AC Supplies (2017) Limited | Manufacturing | 2017 |
| AC93 Ltd | Health & social care | 2015 |
| ACA Valets&Tyres Ltd | Manufacturing | 2026 |
| Academia Care Consulting Limited | Health & social care | 2016 |
| Academia Cerebra Limited | Education | 2022 |
| Academy Bolton 23 Ltd | Education | 2023 |
| Academy Dancewear Limited | Wholesale & retail | 2024 |
| Academy of Equality&Excellence Ltd | Education | 2021 |
| Acarder Limited | Real estate | 2019 |
| Acava Superfoods Ltd | Wholesale & retail | 2025 |
| ACB Welding Ltd | Manufacturing | 2022 |
| Accelcom Limited | Wholesale & retail | 2024 |
| Accelerate Active Limited | Arts & recreation | 2023 |
| Accelerate Consulting (UK) Limited | Professional & scientific | 2014 |
| Accelerated Bridging Finance Limited | Financial services | 2006 |
| Accelerec Ltd | Information & communication | 2025 |
| Access Medics Limited | Administrative & support | 2019 |
| Accident Breakdown Rescue Limited | Administrative & support | 2005 |
| Accntax Ltd | Professional & scientific | 2011 |
| Accology Limited | Professional & scientific | 2010 |
| Accountable Bookkeeping Limited | Professional & scientific | 2008 |
| Accountancy and Tax Help Limited | Professional & scientific | 2004 |
| Accountancy Plus (NW) Limited | Professional & scientific | 2003 |
| Accountancy Plus Financial Planning Ltd | Administrative & support | 2019 |
| Accountancy Services (Bolton) Limited | Professional & scientific | 2003 |
| Accountants Bolton Ltd | Financial services | 2018 |
| Accounting & Financial Solutions Limited | Professional & scientific | 2007 |
| Accounting Solutions (NW) Ltd | Professional & scientific | 2017 |
| Accountish Ltd | Professional & scientific | 2025 |
| Accreda Pharmaceuticals Limited | Wholesale & retail | 2025 |
| Accrington Brush Co. Limited | Real estate | 1963 |
| Accrington Surgical Instrument Suppliers Limited | Manufacturing | 2006 |
| Acctv Limited | Other services | 2020 |
| Accumise Limited | Other services | 2023 |
| Accupart CNC Limited | Professional & scientific | 2018 |
| Accura Resourcing Limited | Professional & scientific | 2019 |
| Accware Limited | Professional & scientific | 2008 |
| ACD Design Services Ltd | Professional & scientific | 2005 |
| Acdmr LLP | | 2017 |
| Ace & Co Homes Ltd | Real estate | 2025 |
| Ace Auto Car Sales Ltd | Wholesale & retail | 2024 |
| Ace Capital Store Ltd | Wholesale & retail | 2023 |
| Ace Conditioning Ltd | Arts & recreation | 2020 |
| Ace Improvements Limited | Construction | 2017 |
| Ace Lace Ltd | Professional & scientific | 2023 |
| Ace Professional Services Ltd | Information & communication | 2023 |
| Ace Real Estate Ltd. | Real estate | 2004 |
| Ace Tariff Ltd | Information & communication | 2022 |
| Aced Engineering Limited | Professional & scientific | 2025 |
| Aceso Medical Limited | Health & social care | 2013 |