| 5 Star Hand Car Wash Ltd | Wholesale & retail | 2026 |
| 5 Star Travel HFD Ltd | Administrative & support | 2024 |
| 5 Times Solutions Limited | Information & communication | 2006 |
| 50 Degrees North Design Consultants Limited | Professional & scientific | 2006 |
| 5SPORT in the Community CIC | Education | 2022 |
| 6 Bryanston Square Freehold Limited | Households | 2017 |
| 60BC Limited | Professional & scientific | 2018 |
| 6INLINE Ltd | Wholesale & retail | 2023 |
| 7 Singh Properties Ltd | Administrative & support | 2017 |
| 77 UK Developments Limited | Construction | 2022 |
| 786 GGA Ltd | Transport & logistics | 2026 |
| 7K Ltd | Wholesale & retail | 2025 |
| 7TENFAX Limited | Wholesale & retail | 2025 |
| 8 Capital Holdings Limited | Real estate | 2025 |
| 8 Capital Investments Ltd | Real estate | 2023 |
| 80S Bar Pontefract Ltd | Hospitality | 2025 |
| @6SPIRITS Ltd | Manufacturing | 2021 |
| A Place in the Pennines Ltd | Hospitality | 2023 |
| A & B Sales Ltd | Wholesale & retail | 2019 |
| A & D (UK) Limited | Other services | 2010 |
| A & E Counselling Services Ltd | Education | 2025 |
| A & F Sprinklers Holdings Limited | Financial services | 2022 |
| A & G Machine Tool Repairs Limited | Manufacturing | 2003 |
| A & Hashi Ltd | Wholesale & retail | 2024 |
| A & J 22 Limited | Wholesale & retail | 2024 |
| A & M Global Trading Ltd | Wholesale & retail | 2020 |
| A & S Joinery (MFG) Limited | Manufacturing | 2002 |
| A & S Machinery Limited | Professional & scientific | 2007 |
| A &Z Linthwaite Limited | Households | 2022 |
| A 2 Z Store HUD Ltd | Wholesale & retail | 2022 |
| A a Autovan Leisure Ltd | Other services | 2009 |
| A and H Global Limited | Wholesale & retail | 2024 |
| A and K Associates West Yorkshire Ltd | Transport & logistics | 2018 |
| A Ashleigh Limited | Information & communication | 2012 |
| A Bader Ltd | Health & social care | 2025 |
| A BIT More INK CIC | Education | 2019 |
| A Buxton Consulting Ltd | Professional & scientific | 2022 |
| A C Pilmer Automatic Music Ltd | Manufacturing | 1986 |
| A Cheeky Taste of Heaven Ltd | Wholesale & retail | 2025 |
| A Crampton Auto Services Limited | Wholesale & retail | 2013 |
| A CUP of Proper Tea Limited | Real estate | 2024 |
| A CUT Above Tree Surgery Limited | Agriculture & fishing | 2013 |
| A F Companies Ltd | Professional & scientific | 2025 |
| A G Logistic Solutions Ltd | Transport & logistics | 2013 |
| A Grade Coating Ltd | Manufacturing | 2014 |
| A H Fragrances Ltd | Information & communication | 2017 |
| A Harris Village Butchers Ltd | Wholesale & retail | 2020 |
| A J Network Ltd | Administrative & support | 2012 |
| A K Rigging Services Ltd | Information & communication | 2025 |
| A Laidlaw Accountants Limited | Professional & scientific | 2014 |
| A Locums Ltd | Health & social care | 2012 |
| A M K Windows Limited | Construction | 2008 |
| A M Refractories Ltd | Manufacturing | 2022 |
| A Myers Holding Ltd | Financial services | 2024 |
| A N Bhatti Ltd | Health & social care | 2025 |
| A New Leaf Book Shop Limited | Wholesale & retail | 2023 |
| A P Contractor Services Limited | Manufacturing | 2019 |
| A P D Group Holdings Limited | Professional & scientific | 2019 |
| A P D Holdings Limited | Professional & scientific | 2016 |
| A P Preston Consulting Limited | Professional & scientific | 2025 |
| A P Systems & Solutions Ltd | Information & communication | 1999 |
| A Patrick Development Limited | Construction | 2003 |
| A Pharm Locum Ltd | Health & social care | 2013 |
| A Pharma & Rentals Ltd | Real estate | 2022 |
| A Priceless Enterprise Limited | Wholesale & retail | 2020 |
| A Raheem Developments Limited | Hospitality | 2024 |
| A Reliable Enterprise Limited | Wholesale & retail | 2022 |
| A Richardson Setting OUT Limited | Construction | 2014 |
| A S Prosser Ltd | Professional & scientific | 2025 |
| A Sardar Limited | Health & social care | 2023 |
| A Simpson Limited | Construction | 2017 |
| A Star Aesthetics Limited | Health & social care | 2018 |
| A Star Trading Ltd | Wholesale & retail | 2020 |
| A Sweet Affair Ltd | Wholesale & retail | 2021 |
| A Symphony Limited | Health & social care | 2025 |
| A to J Removals Ltd | Water & waste | 2025 |
| A to Z Convinience Ltd | Wholesale & retail | 2025 |
| A to Z Discount Store Limited | Wholesale & retail | 2021 |
| A Townend Limited | Real estate | 2011 |
| A V Motors (Yorkshire) Ltd | Wholesale & retail | 2021 |
| A World Apart Ltd | Extraterritorial | 2022 |
| A&A Global Trading Ltd | Wholesale & retail | 2023 |
| A&C Trading Limited | Wholesale & retail | 2023 |
| A&E Consultants Ltd | Real estate | 2012 |
| A&G European Ltd | Transport & logistics | 2019 |
| A&G Trading (York) Ltd | Wholesale & retail | 2017 |
| A&R Stores Limited | Wholesale & retail | 2024 |
| A&R Veterinary Services Ltd | Professional & scientific | 2024 |
| A&S Holdings (Huddersfield) Limited | Financial services | 2021 |
| A&T Leasing Ltd | Administrative & support | 2024 |
| A-Grade Industrial Cleaning Limited | Administrative & support | 2023 |
| A-Spa Hot TUB Services Ltd | Wholesale & retail | 2023 |
| A-Z Huddersfield Group Ltd | Wholesale & retail | 2024 |
| A-Z Motor Spares Ltd | Wholesale & retail | 2024 |
| A-Z Properties Huddersfield Ltd | Real estate | 2024 |
| A. C. Framing (Sales) Limited | Other services | 1968 |
| A. Mohammed Medical Limited | Health & social care | 2007 |
| A. N. Remmer Builders Ltd | Construction | 2012 |
| A. SHAIKH1 Engineering Limited | Professional & scientific | 2013 |
| A. Shotton Limited | Manufacturing | 2006 |