| 100 Limited | Wholesale & retail | 2017 |
| 346 Online Ltd | Wholesale & retail | 2018 |
| 7DAYS Yorkshire Limited | Wholesale & retail | 2025 |
| A & C Property Consultancy Services Ltd | Construction | 2024 |
| A & D Accident Repair Centre Limited | Wholesale & retail | 2012 |
| A G Welding Ltd | Manufacturing | 2015 |
| A P Motorstore Limited | Wholesale & retail | 2014 |
| A P Ripley & Co Limited | Professional & scientific | 2013 |
| A Remarkable Idea Limited | Information & communication | 2017 |
| A T K Services (Yorkshire) Limited | Other services | 2012 |
| A&D Slothers LLP | | 2025 |
| AAA PVT Ltd. | Health & social care | 2014 |
| Aaym Investments Ltd | Financial services | 2025 |
| AB Fleet Services Ltd | Wholesale & retail | 2025 |
| Abacus Spares Limited | Professional & scientific | 2020 |
| Abra Optical Limited | Health & social care | 2014 |
| Academy Apparel Ltd | Wholesale & retail | 2025 |
| Accelerant Europe Ltd | Professional & scientific | 2022 |
| Accent Engineering Ltd | Extraterritorial | 2022 |
| Accept Properties Ltd. | Construction | 1996 |
| Achlachan Wind Farm LLP | | 2014 |
| Acro Trade Ltd | Wholesale & retail | 2025 |
| ACS Sound Limited | Information & communication | 2022 |
| Actiform Hire Limited | Administrative & support | 1984 |
| Actiform Limited | Manufacturing | 1994 |
| Active Gold CIC | Arts & recreation | 2024 |
| Activity Yachting Ltd | Administrative & support | 2025 |
| ADA Holdings (Yorkshire) Ltd | Financial services | 2021 |
| Adam Hodgson Ltd | Information & communication | 2019 |
| Adminquick Limited | Professional & scientific | 1986 |
| ADS Vehicle Conversions Limited | Manufacturing | 2014 |
| Advance Commercial Bodies Ltd | Manufacturing | 2013 |
| Advance Mental Health Ltd | Health & social care | 2020 |
| AJ Vent Solutions Ltd | Construction | 2023 |
| Ajhk Ltd | Hospitality | 2024 |
| AJW Lifestyle Solutions Limited | Real estate | 2022 |
| Akhtar Vision Group Ltd | Wholesale & retail | 2015 |
| AL Fresco Foods Limited | Financial services | 1972 |
| AL Medina Banqueting Suites Limited | Hospitality | 2018 |
| Aldwicks Limited | Information & communication | 1995 |
| Alexandra Bedcovers Limited | Extraterritorial | 1976 |
| ALL Round Heating Services Limited | Construction | 1998 |
| Almas Jewellers & Bridal Limited | Manufacturing | 2016 |
| Alpha Health Clinics Ltd | Health & social care | 2025 |
| AM Anaesthetic Services Ltd | Health & social care | 2013 |
| AM Holdings Ltd | Financial services | 2023 |
| AMBITIONS4KIRKLEES CIC | Education | 2008 |
| AMBITIONS4LIFE Ltd | Education | 2022 |
| Amir’S Indian Spice Ltd | Hospitality | 2019 |
| Amity Island Ltd | Financial services | 2023 |
| AMM Direct Limited | Wholesale & retail | 2020 |
| Amsal Consultancy Ltd | Professional & scientific | 2022 |
| Amy's Nails & Spa TN Ltd | Other services | 2019 |
| Analytical Innovations Ltd | Professional & scientific | 2019 |
| Andrew Corrigan Decorating Services Limited | Construction | 2017 |
| Apricot Affordable's Limited | Wholesale & retail | 2024 |
| ARC Utilities Ltd | Construction | 2017 |
| Arch Retail Ltd | Wholesale & retail | 2025 |
| Arch Towers Ltd | Households | 2020 |
| Arrochar Properties Limited | Construction | 2004 |
| Arte Properties Limited | Real estate | 2019 |
| ASB Property (Yorkshire) Limited | Real estate | 2018 |
| Athltid Ltd | Wholesale & retail | 2026 |
| Atlas & Bloom Ltd | Wholesale & retail | 2024 |
| Atomic Embroidery Company Ltd | Administrative & support | 1996 |
| Atomic Gifts Limited | Wholesale & retail | 2003 |
| Atomic Supplies Ltd | Energy | 1995 |
| Auchmore Renewables LLP | | 2011 |
| Audreys Fish & Chips Ltd | Hospitality | 2012 |
| Auto (Yorkshire) Ltd | Wholesale & retail | 2023 |
| Awareness Marketing Limited | Professional & scientific | 2008 |
| Awesome Beds Ltd | Manufacturing | 2024 |
| AWR Solutions Limited | Professional & scientific | 2011 |
| Axsis Ltd | Real estate | 2016 |
| AY & Y. Patel (Dewsbury) Limited | Wholesale & retail | 1987 |
| Ayyma Holdings Limited | Wholesale & retail | 2021 |
| B and I Dagg Investments Limited | Real estate | 2022 |
| B.A. Reclamation Limited | Arts & recreation | 1996 |
| B.C.S. (Yorkshire) Limited | Construction | 2005 |
| Baby Sensory Bradford Central Ltd | Health & social care | 2026 |
| Babyccinos Kinder Cafes Ltd | Hospitality | 2017 |
| Bakezilla Limited | Hospitality | 2017 |
| Balwyllo Bess Limited | Energy | 2023 |
| Bannon Limited | Transport & logistics | 2008 |
| Bar Smart Group Ltd | Professional & scientific | 2026 |
| Barrett and Swales Properties Ltd | Real estate | 2013 |
| BBP Marketing Limited | Manufacturing | 2005 |
| BEAUTYWORKS4U Ltd | Wholesale & retail | 2019 |
| Beckett House Freehold Limited | Households | 1997 |
| Bedology Limited | Extraterritorial | 2016 |
| Before YOU Stitch Ltd | Education | 2023 |
| Bellyard Limited | Real estate | 1999 |
| BEN Daure Ltd | Other services | 2002 |
| Benchmark Renovations Ltd | Construction | 2022 |
| Benson Taylor Limited | Arts & recreation | 2017 |
| Bespoke Day Services Ltd | Health & social care | 2018 |
| Best Stroke Leisure Ltd | Education | 2019 |
| Best Stroke Swim Limited | Education | 2025 |
| BFK Consulting Ltd | Professional & scientific | 2019 |
| Bhmq Ltd | Real estate | 2025 |