| 12571538 Limited | Professional & scientific | 2020 |
| 1ST Call Healthcare Ltd | Administrative & support | 2010 |
| 2-16 Brunswick Place RTM Company Limited | Households | 2017 |
| 2CG Groundwork’S Ltd | Construction | 2018 |
| 2ND Life Project Ltd | Real estate | 2024 |
| 3H Consultancy Limited | Information & communication | 2015 |
| 4SB Estates Ltd | Financial services | 2017 |
| 4WAYS Financial Services Limited | Financial services | 2020 |
| A & a Optical Services Ltd | Health & social care | 2024 |
| A & Z Properties Management Ltd | Real estate | 2025 |
| A H a Consultants Limited | Administrative & support | 2017 |
| A T S Halal Meat Suppliers Ltd | Other services | 2026 |
| A to Z Grammar Centre Ltd | Education | 2024 |
| A&Q Beds Ltd | Wholesale & retail | 2024 |
| A.K.A Holdings (Huddersfield) Ltd | Financial services | 2023 |
| AA Halal Meat Ltd | Wholesale & retail | 2024 |
| AA Laser & Aesthetics Ltd | Other services | 2022 |
| AAA Medical Supplies Ltd | Wholesale & retail | 2024 |
| Aadam Cars Ltd | Transport & logistics | 2024 |
| Aarzzaaa Property Investments Ltd | Real estate | 2021 |
| AB Beds North Ltd | Manufacturing | 2024 |
| Abbey Cars Yorkshire Ltd | Transport & logistics | 2026 |
| ABT Sales Ltd | Wholesale & retail | 2023 |
| Abuv & Beyond Extra Care Limited | Health & social care | 2024 |
| Abuv & Beyond Limited | Health & social care | 2018 |
| Ace Motor Sales Limited | Wholesale & retail | 2022 |
| Acorn Maintenance Ltd | Construction | 2021 |
| ACS Property Ltd | Real estate | 2025 |
| ACS Roofing Services Ltd | Construction | 2020 |
| Adam Dean Investments (Worldwide) Ltd | Financial services | 2002 |
| ADC Mill Lane Limited | Real estate | 2025 |
| ADC Property Ltd | Real estate | 2022 |
| ADC Property Solutions Ltd | Construction | 2011 |
| ADI Communications (Yorkshire) Limited | Construction | 2010 |
| Adtec Ltd | Wholesale & retail | 2024 |
| Advance Rentals Ltd | Administrative & support | 2019 |
| Advanced Homewares Limited | Wholesale & retail | 2019 |
| AHC Car Sales Ltd | Wholesale & retail | 2019 |
| AHC Consultants Limited | Real estate | 2017 |
| AHC Holdings Limited | Real estate | 2025 |
| AHC Solutions (UK) Ltd | Information & communication | 2011 |
| AHC Wholesale Ltd | Wholesale & retail | 2020 |
| AHQ Holdings Ltd | Real estate | 2019 |
| AIG Fabrications Ltd | Manufacturing | 2013 |
| AJ Medical Enterprise Ltd | Health & social care | 2014 |
| AJC Joinery Limited | Manufacturing | 2022 |
| Akuma Finance Limited | Professional & scientific | 2018 |
| AL Quraish Ltd | Wholesale & retail | 2021 |
| Al-Raza Investment Ltd | Real estate | 2022 |
| Al-Sunnah Perfumes Ltd | Wholesale & retail | 2022 |
| Albie Car Repair Centre Ltd | Wholesale & retail | 2024 |
| Alderson Ferry Ltd | Manufacturing | 2026 |
| Alipak Limited | Wholesale & retail | 2022 |
| Alpha Car Hire Limited | Administrative & support | 2011 |
| Alpha Cars Heckmondwike Ltd | Transport & logistics | 2025 |
| Amaana Studio Ltd | Other services | 2026 |
| Amare Living Retail Limited | Wholesale & retail | 2024 |
| Ambiance Locums Ltd | Health & social care | 2021 |
| AMI Furnishings Ltd | Wholesale & retail | 2025 |
| Aminasc Limited | Information & communication | 2018 |
| Amman Enterprises Ltd | Manufacturing | 2026 |
| AMO Security Roller Systems Limited | Manufacturing | 1995 |
| Anchor Ministries | Other services | 2023 |
| Angel Healthcare Solutions Limited | Health & social care | 2007 |
| Anherb Ltd. | Health & social care | 2015 |
| Ankar Innovations Ltd | Wholesale & retail | 2023 |
| Apex Accountants & Tax Consultants Ltd | Extraterritorial | 2018 |
| Apex Performance Rentals Ltd | Administrative & support | 2026 |
| Aqua Bridge Farms Ltd | Agriculture & fishing | 2023 |
| Aravin Limited | Wholesale & retail | 2025 |
| ARC Digital Media Limited | Extraterritorial | 2012 |
| Aristo Haus Holding Ltd | Administrative & support | 2024 |
| Aristo Haus Ltd | Manufacturing | 2024 |
| ARK Future Limited | Wholesale & retail | 2022 |
| Arkanum Management Limited | Financial services | 2004 |
| ART61 Limited | Real estate | 2024 |
| Artido Ltd | Wholesale & retail | 2025 |
| Artificialx Ltd | Information & communication | 2025 |
| AS Development Services Ltd | Construction | 2022 |
| Ashes Rise Limited | Other services | 2016 |
| Asimz Driving School Ltd | Professional & scientific | 2024 |
| Atax Accountants (UK) Ltd | Professional & scientific | 2011 |
| Atex Europe Ltd | Manufacturing | 2021 |
| Atex Ventures LLP | | 2025 |
| ATM Security Services Ltd | Administrative & support | 2025 |
| ATZ Rentals Ltd | Administrative & support | 2022 |
| Autonoma LLP | | 2024 |
| Azaa Ltd | Financial services | 2025 |
| BAC Outdoor Leisure Limited | Wholesale & retail | 1992 |
| BAE Burger Ltd | Hospitality | 2023 |
| Baker & Wells Ltd | Wholesale & retail | 2018 |
| Baker Street Artisan Limited | Hospitality | 2019 |
| Baliveno Fashion House Ltd | Manufacturing | 2023 |
| Bambinos Hecky Limited | Hospitality | 2023 |
| Barker Electrical (Yorkshire) Limited | Construction | 2024 |
| Barnes Homes Management Company Limited | Households | 2008 |
| Basit & Ayan Ltd | Wholesale & retail | 2025 |
| BED Bonanza Ltd | Manufacturing | 2021 |
| BED Centre Ltd | Wholesale & retail | 2023 |
| BED Choice Limited | Wholesale & retail | 2019 |