| "U-Save" D.I.Y. Limited | | 1983 |
| 00118632 Limited | Professional & scientific | 1911 |
| 00604167 Limited | Wholesale & retail | 1958 |
| 00988096 | Professional & scientific | 1970 |
| 06381193 Limited | Professional & scientific | 2007 |
| 18 Parish Ghyll Road (Freehold) Limited | Households | 2007 |
| 1ECOM Group Limited | Wholesale & retail | 2023 |
| 2 Plus 2 Properties Ltd | Construction | 2005 |
| 2B Acting Limited | Information & communication | 2005 |
| 3 Cube Real Estate Limited | Real estate | 2004 |
| 3 Quotes Limited | Information & communication | 2000 |
| 365 Ventures Ltd | Information & communication | 2001 |
| 3D Project Solutions Limited | Information & communication | 2003 |
| 4 Seasons Design Limited | Professional & scientific | 2002 |
| 4 X Fortyone Limited | Wholesale & retail | 2005 |
| 5CC Limited | Professional & scientific | 2003 |
| 786 Pizza Company Ltd | Hospitality | 2007 |
| A & T Appliances Limited | Wholesale & retail | 2004 |
| A B Print Group Limited | Manufacturing | 1970 |
| A H Plumbing Solutions Ltd | Construction | 2025 |
| A J Structural Steels Limited | Construction | 2002 |
| A Riddiough & SON Ltd | Construction | 1996 |
| A Summersgill (Plumbing and Heating) Ltd | Construction | 1997 |
| A. Dyson & SON (Patterns) Limited | Financial services | 1978 |
| A.C.C. Projects Limited | Wholesale & retail | 2004 |
| A.G. Horsfall & Sons Limited | | 1943 |
| A.J.K. Limited | Information & communication | 1997 |
| A.L.L. Recruitment Limited | Administrative & support | 1996 |
| A.P.E. Ltd | Construction | 1998 |
| A1 Building Supplies Limited | Wholesale & retail | 2003 |
| A1 Techwizards Limited | Information & communication | 2025 |
| A9APA Limited | Professional & scientific | 2007 |
| Aagrah (Leeds) Limited | Hospitality | 2003 |
| Abacus Express Limited | Transport & logistics | 1999 |
| Abbeydale (Ilkley) Limited | Health & social care | 1984 |
| Abcon Readimix Concrete Limited | Manufacturing | 2000 |
| Aberdeen Industry Investments Limited | Professional & scientific | 2013 |
| Abraham Shaw Limited | Construction | 2003 |
| Abram Pulman & Sons Limited | Wholesale & retail | 1898 |
| ABU Bakar Limited | Wholesale & retail | 2003 |
| Access Link Limited | Administrative & support | 2007 |
| Accomodate (UK) Limited | Other services | 2005 |
| Accountancy Link (UK) Limited | Professional & scientific | 2005 |
| Accountancy Services (Batley) Limited | Professional & scientific | 2007 |
| Accountax Business Consultants Ltd. | Professional & scientific | 2007 |
| Accounting Management Services Limited | Professional & scientific | 1988 |
| Ace Taxis (Wakefield) Ltd | Transport & logistics | 2006 |
| Ace Woolpacks Ltd. | Manufacturing | 1991 |
| Ackworth School Estates Limited | Real estate | 1946 |
| Active Leeds Limited | Wholesale & retail | 2004 |
| Acton Jennings Asbestos Services | | 2004 |
| Actual Developments Limited | Real estate | 2006 |
| AD Prime Traders Ltd | Wholesale & retail | 2023 |
| AD Waste Management and Training Ltd | Professional & scientific | 2006 |
| Adaptive Network Technology Limited | Information & communication | 1998 |
| ADC Electrical Contractors Ltd | Construction | 2006 |
| ADC Property Services Ltd | Construction | 2007 |
| Addy Murgatroyd Accountants Ltd | Professional & scientific | 2008 |
| Adhoc Consulting Limited | Administrative & support | 2001 |
| Adrienne Florist Limited | Wholesale & retail | 2003 |
| Advanced Actuators Limited | Manufacturing | 1999 |
| Advanced Drilling Ltd | Construction | 2024 |
| Advanced Electrical Services (YKS) Limited | Construction | 2003 |
| AGE UK Wakefield District | Health & social care | 2002 |
| AGE UK Wakefield Trading Limited | Financial services | 1995 |
| Agents of Fitness Ltd | Wholesale & retail | 2025 |
| Ahlulbayt Cultural Centre | Other services | 2004 |
| Aindale Business Management Services Limited | Information & communication | 1984 |
| Aire Valley Grounds Maintenance Limited | Administrative & support | 2007 |
| Aire Valley Properties Limited | Real estate | 2003 |
| Airea Floor Coverings Limited | Financial services | 2000 |
| Airedale Voluntary Drug and Alcohol Agency Limited | Health & social care | 1997 |
| Airevalley Coatings Limited | Professional & scientific | 2005 |
| Airevalley Independent Financial Advisors Limited | Financial services | 2002 |
| Airportnet Limited | Information & communication | 1999 |
| Ajax Minerva Limited | Manufacturing | 1975 |
| Ajscs Ltd | Manufacturing | 2007 |
| AK Suppliers & Maintenance (UK) Ltd | Wholesale & retail | 2002 |
| Akbar Balti Restaurant Limited | Hospitality | 1998 |
| Akers Lettings Ltd | Hospitality | 2025 |
| AL Hudah Property Investment Limited | Real estate | 2025 |
| AL Karim Services Ltd | Professional & scientific | 2017 |
| AL Murad (Castleford) Limited | Wholesale & retail | 1994 |
| Al-Hassan Education Centre | Other services | 1999 |
| Al-Noor Travels and Tours Ltd | Administrative & support | 2004 |
| Alan Carnall Windows Limited | Construction | 1994 |
| Albion Design & Draughting Services Limited | Professional & scientific | 1998 |
| Alcon Services Limited | Administrative & support | 2003 |
| Alden Smith Limited | Professional & scientific | 2005 |
| Alex Tyres Limited | Other services | 2019 |
| Alexander Dutton Limited | Water & waste | 1983 |
| ALI Renovations Ltd | Construction | 2024 |
| Alison Grant Architects Ltd | Professional & scientific | 2001 |
| Alive and Kicking Theatre Company Limited | Education | 2007 |
| ALL Star Deep Cleaners Ltd | Administrative & support | 2016 |
| Allen Automation Limited | Manufacturing | 2004 |
| Alliance Properties (UK) Ltd | Real estate | 2007 |
| Allums Butchers Limited | Wholesale & retail | 2004 |
| Alpamayo Limited | Financial services | 1996 |
| Altech Fabrications Limited | Manufacturing | 2005 |