| 11415472 Limited | Education | 2018 |
| 16133865 Limited | Hospitality | 2024 |
| 18A Limited | Hospitality | 2024 |
| 1ST Choice Car Spares Limited | Wholesale & retail | 2008 |
| 1UP Automotive Ltd | Wholesale & retail | 2022 |
| 27 Squared Ltd | Real estate | 2024 |
| 3 & 4 Lake View Villas Limited | Households | 2000 |
| 3 Shahs Ltd | Real estate | 2022 |
| 313 Transport & Logistics Limited | Transport & logistics | 2019 |
| 3133 Ltd | Transport & logistics | 2025 |
| 360 Degrees Health Care and Rehabilitation Services Ltd | Health & social care | 2014 |
| 3B Systems Ltd | Information & communication | 1998 |
| 3M Properties Pendle Ltd | Real estate | 2024 |
| 3R Flooring Limited | Wholesale & retail | 2018 |
| 3WM Signs Ltd | Manufacturing | 2015 |
| 4 Brothers Wholesales Limited | Wholesale & retail | 2026 |
| 4AHM Holdings Limited | Real estate | 2026 |
| 512 Properties Ltd | Real estate | 2023 |
| 512 Store Ltd | Wholesale & retail | 2025 |
| 60 Plus Textiles Limited | Manufacturing | 1983 |
| 7 Days Takeaway Limited | Hospitality | 2018 |
| 786 Properties (Nelson) Limited | Real estate | 2008 |
| 7FLIGHTS Ltd | Administrative & support | 2025 |
| 7UMRAH Ltd | Administrative & support | 2025 |
| 87GW Ltd | Real estate | 2023 |
| 8D Tech Limited | Information & communication | 2018 |
| A & G Convenience Store Ltd | Wholesale & retail | 2018 |
| A & G Landscapes & Groundworks Ltd | Administrative & support | 2018 |
| A & H Halal Meat Limited | Wholesale & retail | 2018 |
| A & R Distribution (Lincs) Ltd | Transport & logistics | 2013 |
| A 1 & Cars Limited | Wholesale & retail | 2025 |
| A 2 Z Compensation Ltd | Financial services | 2018 |
| A and a Investment Projects Ltd | Administrative & support | 2017 |
| A Bailey Joinery Ltd | Construction | 2021 |
| A Bhatti Limited | Wholesale & retail | 2013 |
| A Care Kompany Limited | Health & social care | 2023 |
| A G B Electrical Solutions Limited | Construction | 2013 |
| A G Holdings 85 Limited | Real estate | 2025 |
| A J Couriers Nelson Ltd | Transport & logistics | 2022 |
| A Latimer & Sons Limited | Real estate | 2020 |
| A Line Gemms & Local Private Hire Limited | Transport & logistics | 2023 |
| A Simpson Properties Ltd | Real estate | 2025 |
| A Star Customz Ltd | Wholesale & retail | 2024 |
| A Starkie Wroughtironsmiths Ltd | Manufacturing | 2012 |
| A to B Vehicles Limited | Wholesale & retail | 2003 |
| A V Town Planning Ltd | Professional & scientific | 2011 |
| A&A Clotheing Limited | Wholesale & retail | 2024 |
| A&A Props Ltd | Real estate | 2023 |
| A&C Auctions of Pendle LLP | | 2020 |
| A-Z Infinity Ltd | Construction | 2024 |
| A-Z Properties (North West) Ltd | Real estate | 2019 |
| A. Gaskell & SON (Roofing Contractors) Limited | Construction | 2003 |
| A.Grant Window Cleaning Services Ltd | Administrative & support | 2016 |
| A.M Kitchens and Wardrobes Ltd | Manufacturing | 2022 |
| A1 Renewable Energy Ltd | Construction | 2025 |
| A1 Starshine Ltd | Wholesale & retail | 2019 |
| A2Z Fitting Ltd | Manufacturing | 2018 |
| AA Traders London Limited | Wholesale & retail | 2018 |
| AA Travel & Money Exchange Ltd | Administrative & support | 2024 |
| AAA Energy Solutions Ltd | Construction | 2019 |
| Aalan Ltd | Wholesale & retail | 2025 |
| Aanda Properties Ltd | Real estate | 2024 |
| AB Social Limited | Health & social care | 2022 |
| Abacus (Manchester) Ltd | Wholesale & retail | 2009 |
| Abbey Archway Developments Limited | Construction | 2001 |
| Abbott Hair Ltd | Other services | 2022 |
| Abbys Refurbs Limited | Other services | 2025 |
| ABC Electrical Ltd | Construction | 2016 |
| Abeeha Vibes Limited | Wholesale & retail | 2025 |
| Aberdeen House Care Limited | Health & social care | 2011 |
| ABI Convenient Store Ltd | Wholesale & retail | 2025 |
| Ability Superstore Limited | Wholesale & retail | 2011 |
| Abingdon Securities Limited | Professional & scientific | 2010 |
| ABL Hutcheson Ltd | Administrative & support | 2025 |
| Abmardon Limited | Other services | 2020 |
| ABP Eastbourne Ltd | Administrative & support | 2017 |
| Abrigohomes Ltd | Health & social care | 2022 |
| ABZ Standard Limited | Hospitality | 2026 |
| Accel Auto Centre Ltd | Wholesale & retail | 2025 |
| Access and Surveillance by Blakeys Limited | Administrative & support | 2001 |
| Access to Medicine Ltd | Education | 2026 |
| Access Windows & Doors Ltd | Construction | 2021 |
| Accessoloo Limited | Health & social care | 2026 |
| Accountaxation Limited | Professional & scientific | 2011 |
| Accura ITW Limited | Real estate | 2020 |
| Ace Consumer Supplies Limited | Wholesale & retail | 2018 |
| Ace Door Systems Ltd | Construction | 2017 |
| Ace Eco Energy Ltd | Construction | 2023 |
| Ace Medical & Aesthetics Ltd | Health & social care | 2021 |
| ACO Douglas Ltd | Financial services | 2023 |
| Acorn Fabrics (Cumbria) Limited | Wholesale & retail | 1969 |
| ACP Cleaning Services Limited | Administrative & support | 2015 |
| Acrodance UK Limited | Arts & recreation | 2022 |
| ACS Electrician Ltd | Construction | 2022 |
| AD GAS Services Ltd | Construction | 2019 |
| Adam Associates Ltd | Construction | 2014 |
| Adams Healthcare Nelson Ltd | Health & social care | 2021 |
| Adams Homecare Ltd | Health & social care | 2023 |
| Adams Properties (Nelson) Limited | Real estate | 2006 |
| Adaptive Studio Limited | Professional & scientific | 2017 |