| 123 Home Sales Limited | Real estate | 2013 |
| 1245 Limited | Professional & scientific | 2022 |
| 1527 Contracting Limited | Construction | 2021 |
| 1527 Developments Limited | Construction | 2021 |
| 4 Eleven Brand Ltd | Wholesale & retail | 2020 |
| 4119 Ltd | Wholesale & retail | 2025 |
| 5 Trades Ltd | Construction | 2016 |
| 6H Buyers Ltd | Professional & scientific | 2026 |
| 7455 Limited | Wholesale & retail | 2012 |
| A Benn Ltd | Professional & scientific | 2012 |
| A Ellis Fabrications Ltd | Manufacturing | 2011 |
| A Plus Boilers Ltd | Construction | 2021 |
| A.F. Staircase Systems Limited | Construction | 1995 |
| ABC Beds Ltd | Wholesale & retail | 2016 |
| ABC Connect Ltd | Arts & recreation | 2019 |
| Absolute Health Fire Safety Limited | Public administration | 2018 |
| Ace Plumbers Limited | Construction | 2016 |
| ACTIV8 Wellbeing Limited | Health & social care | 2020 |
| Active Data Solutions LLP | | 2007 |
| Adamco (Holdings) Limited | Financial services | 2015 |
| Adamco Business Park Limited | Administrative & support | 2019 |
| Adamco Construction Limited | Construction | 2011 |
| Adamco Properties Limited | Real estate | 2022 |
| Advance Pipework Services Limited | Construction | 2023 |
| Advanced Building Maintenance Limited | Construction | 2005 |
| ADW Technical Solutions Limited | Professional & scientific | 2017 |
| Aegis LW Ltd | Education | 2017 |
| AG Lewis Properties Ltd | Financial services | 2025 |
| AI Trackers Ltd | Manufacturing | 2019 |
| AI Vehicle Trackers Ltd | Manufacturing | 2019 |
| Aircart Ltd | Wholesale & retail | 2025 |
| AJW Welding & Fabrication Limited | Manufacturing | 2020 |
| Alabs IT Solutions Limited | Information & communication | 2022 |
| Alderson Beauty (Yorkshire) Ltd | Other services | 2024 |
| ALI Shan Rupyal Tent Pegging Club Community Interest Company | Arts & recreation | 2022 |
| Alpha Extraction Limited | Manufacturing | 2003 |
| Amari Couriers Ltd | Transport & logistics | 2025 |
| Amari Sales Ltd | Wholesale & retail | 2021 |
| Amber (Consultancy) Solutions Limited | Professional & scientific | 2023 |
| AMO Mattress Ltd | Wholesale & retail | 2021 |
| AP Public House Ltd | Hospitality | 2025 |
| APE Ales Ltd | Manufacturing | 2020 |
| Apex Gate Systems Limited | Manufacturing | 2026 |
| Apex HR & Safety Solutions Limited | Wholesale & retail | 2023 |
| Apex Insure Ltd | Professional & scientific | 2017 |
| Arbuckle Property Holdings Limited | Real estate | 2019 |
| Arthiva Limited | Administrative & support | 2023 |
| Artificial Intelligence Vehicle Trackers Limited | Manufacturing | 2025 |
| Artificial Intelligence Vehicle Tracking Ltd | Manufacturing | 2025 |
| Arts Unknown Limited | Other services | 2020 |
| Ashrafs Properties Limited | Real estate | 2019 |
| ASK IAN HOW Ltd | Professional & scientific | 2010 |
| ASN Business Solutions Ltd | Professional & scientific | 2015 |
| Asquith Groundworks Limited | Construction | 2009 |
| Atahan Wellness Ltd | Health & social care | 2026 |
| Athletes Collective Ltd | Education | 2025 |
| Atlas Carpets & Flooring Ltd | Wholesale & retail | 2019 |
| Auden Funeral Supplies Limited | Manufacturing | 1999 |
| Auxilia Consultancy Services (UK) Limited | Wholesale & retail | 2017 |
| Avam Ltd | Administrative & support | 2014 |
| Avasarala IT Consulting Services Ltd | Information & communication | 2015 |
| AW Roofing and Heritage Ltd | Construction | 2025 |
| Azhamond Ltd | Real estate | 2019 |
| B D M Engineering Services Limited | Professional & scientific | 2017 |
| Bamford Motors Ltd | Wholesale & retail | 2018 |
| Barely Laced UK Ltd | Wholesale & retail | 2025 |
| Barnes Architectural Services Limited | Professional & scientific | 2023 |
| Barnes Family Law Limited | Professional & scientific | 2012 |
| Barnes Homes Yorkshire Limited | Professional & scientific | 1999 |
| BDM Property Services Limited | Construction | 2025 |
| Beal Entertainment Ltd | Hospitality | 2024 |
| Beaubeauvista Ltd | Professional & scientific | 2025 |
| Beauty Sleep Limited | Manufacturing | 2006 |
| Bebe Beauty Ltd | Other services | 2023 |
| Bebe Beauty Training Ltd | Education | 2024 |
| Bedford Technology Group Ltd | Information & communication | 2026 |
| BEE GEE Late Shop Ltd | Wholesale & retail | 2025 |
| Beehive Court Management Company Limited | Households | 2004 |
| Bennetts EGG Farm Limited | Wholesale & retail | 2022 |
| Best Acoustics Reinhardt Ltd | Wholesale & retail | 2026 |
| Best Brickwork Ltd | Construction | 2007 |
| BIN Cleaned Limited | Administrative & support | 2003 |
| Birkenshaw Properties Limited | Real estate | 2025 |
| Blaze Construction Yorkshire Limited | Construction | 2023 |
| BLS Asbestos Limited | Construction | 1999 |
| Blueroze Limited | Health & social care | 2021 |
| BNH Media Ltd | Professional & scientific | 2023 |
| Boxing Fact Ltd | Manufacturing | 2020 |
| Boxing Social Media Ltd | Manufacturing | 2020 |
| Boxing Sponsorships Ltd | Manufacturing | 2020 |
| BPH Projects Ltd | Construction | 2017 |
| Brook Recovery Limited | Wholesale & retail | 2014 |
| Browns of Liversedge Limited | Administrative & support | 2006 |
| Business Telecommunications Ltd | Other services | 2013 |
| Butler Direct Ltd | Arts & recreation | 2022 |
| BW Fabweld Ltd | Manufacturing | 2025 |
| BYA Technologies Ltd | Information & communication | 2025 |
| C Crossley (Holdings) Ltd | Extraterritorial | 2024 |
| C. E. Bennett & Sons Limited | Professional & scientific | 1983 |
| CA Electrical (Yorkshire) Ltd | Construction | 2025 |