| 1611 Architecture Limited | Professional & scientific | 2020 |
| 1ST Class Turkish Barber Bridge Ltd | Other services | 2022 |
| 2519 Ltd | Financial services | 2026 |
| 2L & Propinvest Co Ltd | Real estate | 2025 |
| 3SDH Ltd | Real estate | 2024 |
| 4JL-IT Limited | Professional & scientific | 2025 |
| 7 Gate Consulting Ltd | Professional & scientific | 2013 |
| A & J Pressure Washing Ltd | Administrative & support | 2022 |
| A Different Sky Limited | Professional & scientific | 2025 |
| A Stott Financial Planning Ltd | Professional & scientific | 2019 |
| A W Holdings 24 Limited | Manufacturing | 2012 |
| A.A Edits Ltd | Information & communication | 2023 |
| A1 GW Cars Private Hire Ltd | Transport & logistics | 2023 |
| A2P Hospitality Limited | Real estate | 2016 |
| Acer Equipment Limited | Extraterritorial | 2005 |
| Active Maintenance Calderdale Limited | Manufacturing | 2022 |
| Adams Kitchens Ltd | Construction | 2023 |
| Advance Architects Limited | Professional & scientific | 2017 |
| AEB Studios Ltd | Professional & scientific | 2023 |
| After Dinner Speakers & Comedians Limited | Administrative & support | 2002 |
| After Dinner World Limited | Administrative & support | 2002 |
| AJB42 Consulting Ltd | Professional & scientific | 2013 |
| AJL Yorkshire Ltd | Hospitality | 2026 |
| Albiola Catering Ltd | Hospitality | 2021 |
| Albion Barbers Limited | Other services | 2018 |
| Alison Stewart Literacy Consultancy Limited | Professional & scientific | 2012 |
| Alma Boys Limited | Hospitality | 2025 |
| Alma on the Hill Limited | Hospitality | 2024 |
| Alpine Exploratory Limited | Administrative & support | 2005 |
| Alpine Restorations Ltd | Wholesale & retail | 2017 |
| AM1 Medical Services Ltd | Health & social care | 2025 |
| AMA Assets Limited | Real estate | 2024 |
| Ananyaa Ltd | Professional & scientific | 2011 |
| Anema Developments Limited | Construction | 1980 |
| Anorak Apps Ltd | Professional & scientific | 2025 |
| Antemes & Sleigh T/A Big Shots Limited | Hospitality | 2017 |
| APH Painters Ltd | Construction | 2020 |
| AQH Micklegate (2015) Limited | Real estate | 2015 |
| ARB Homes Ltd | Real estate | 2016 |
| Armitage & Barker Ltd | Wholesale & retail | 2015 |
| Artby Musse Ltd | Information & communication | 2021 |
| Ashley's Place Community Interest Company | Health & social care | 2025 |
| Aspect 3 Apartments Limited | Households | 2007 |
| Aston Innovations Ltd | Manufacturing | 2025 |
| Astral Fire & Security Limited | Administrative & support | 2006 |
| Astral Total Limited | Construction | 2008 |
| Athenor Ltd | Information & communication | 2025 |
| Atlas Services Holdings Limited | Manufacturing | 2019 |
| Atwal Singh Properties Ltd | Wholesale & retail | 2023 |
| Aubrey&Co Ltd | Hospitality | 2026 |
| AV & JI Stores Ltd | Wholesale & retail | 2023 |
| AW Healthcare Group Ltd | Health & social care | 2025 |
| AW Projects Ltd | Professional & scientific | 2026 |
| B a Speake Contractors Limited | Construction | 2002 |
| Back to Fitness Physio Ltd | Health & social care | 2022 |
| Balletbefit Limited | Arts & recreation | 2015 |
| BAM Wholesale Ltd | Manufacturing | 2023 |
| Bannisters Limited | Manufacturing | 2026 |
| Barkisland Economics Limited | Professional & scientific | 2010 |
| Bartholomew Metals Ltd | Construction | 2016 |
| Bates UK Property Consultants Ltd | Real estate | 2002 |
| BCJ Electrical Limited | Construction | 2015 |
| Beagle Software Ltd | Professional & scientific | 2024 |
| Beckys Bath Bombs Limited | Wholesale & retail | 2019 |
| Beds by Design Limited | Wholesale & retail | 2019 |
| Beefboy Ltd | Information & communication | 2025 |
| Beeond Limited | Professional & scientific | 2019 |
| Beeston Hall Farms Limited | Agriculture & fishing | 2003 |
| Bella Nadar Limited | Wholesale & retail | 2021 |
| Belmont Recycling Ltd | Water & waste | 2026 |
| BEN Horner Ltd | Wholesale & retail | 2024 |
| Benson Payne Limited | Professional & scientific | 1990 |
| Beseeingyou Limited | Information & communication | 2022 |
| Bespoke Developments (Yorkshire) Limited | Construction | 2017 |
| Best LAB Solutions Ltd | Professional & scientific | 2013 |
| Besure Events Ltd | Professional & scientific | 2019 |
| Bevan Harris Limited | Manufacturing | 1955 |
| Big Red Bars Ltd | Hospitality | 2023 |
| Bilberry Cottage Limited | Other services | 2017 |
| Birch Street Ltd | Wholesale & retail | 2025 |
| Black Cat Embroidery Ltd. | Manufacturing | 2008 |
| Bloom Marketing Limited | Professional & scientific | 2012 |
| Blurred Faces Ltd | Information & communication | 2024 |
| Bobby's Burgers Ltd | Hospitality | 2022 |
| Booth Residential Services Limited | Households | 2024 |
| Booth Wood PH Limited | Hospitality | 2015 |
| Booth Wood Ripponden Ltd | Hospitality | 2025 |
| Boss Training Limited | Construction | 2005 |
| Bottomless Brunch Club Ltd | Hospitality | 2025 |
| Boxford 2 Limited | Extraterritorial | 1983 |
| Boxford Holdings Limited | Manufacturing | 1983 |
| Boxford Machinery Limited | Financial services | 2020 |
| Boxford Trustee Limited | Professional & scientific | 2025 |
| Bradley & Holmes Limited | Wholesale & retail | 1963 |
| Bradley Bar Private Day Nursery Limited | Education | 2013 |
| Brady M&E Services Ltd | Professional & scientific | 2021 |
| Branwell Reclamation Limited | Construction | 1996 |
| Breelik Ltd | Wholesale & retail | 2025 |
| Brewco Brewing Ltd | Wholesale & retail | 2021 |
| Brick Consultants Ltd | Manufacturing | 2010 |