| 8786 Ltd | Wholesale & retail | 2021 |
| 8X Distribution Limited | Wholesale & retail | 2023 |
| 8X Holdings Limited | Financial services | 2026 |
| 9 Lives Cat Rescue C.I.C. | Professional & scientific | 2024 |
| 93 International Store Ltd | Wholesale & retail | 2024 |
| 96 Wolverhampton Road Stafford (Management) Limited | Households | 1986 |
| 966 Cars Limited | Transport & logistics | 2018 |
| A & a Motors (Yorkshire) Limited | Wholesale & retail | 2006 |
| A & E Woodward (Hull) Ltd | Manufacturing | 2017 |
| A & M Controls (Hull) Ltd | Wholesale & retail | 2017 |
| A & N Day Nurseries Ltd | Education | 2022 |
| A & N Transport Ltd | Transport & logistics | 2014 |
| A & T Housing Limited | Real estate | 2020 |
| A & T Property Limited | Real estate | 2007 |
| A and T Property (1) Ltd | Real estate | 2024 |
| A and T Property (2) Ltd | Real estate | 2024 |
| A and T Property (3) Ltd | Real estate | 2024 |
| A and T Property (4) Ltd | Real estate | 2024 |
| A and T Property (5) Ltd | Real estate | 2026 |
| A B (Hull) Limited | Hospitality | 2022 |
| A B Developments (Hull) Limited | Hospitality | 2017 |
| A Blank Canvas CIC | Arts & recreation | 2026 |
| A C Dickinson International Transport Limited | Transport & logistics | 2003 |
| A Car 4U & Commercial Hull Ltd | Wholesale & retail | 2019 |
| A Car 4U Hull Ltd | Wholesale & retail | 2017 |
| A D Carpets Limited | Wholesale & retail | 2003 |
| A D Empress Limited | Hospitality | 2008 |
| A D L a Limited | Wholesale & retail | 2024 |
| A D Reffold (Electrical) Limited | Manufacturing | 1976 |
| A Delivery Hull Ltd | Manufacturing | 2019 |
| A E L Access Limited | Professional & scientific | 2025 |
| A F Steel Fabrications Ltd | Manufacturing | 2020 |
| A Flowers Decorators Ltd | Construction | 2025 |
| A Hinchliffe Developments Ltd | Households | 2019 |
| A Ives Consulting Ltd | Professional & scientific | 2026 |
| A J R Catering Limited | Hospitality | 2006 |
| A J Ropes and Renewables Limited | Construction | 2023 |
| A J Southcoates Holdings Ltd | Financial services | 2024 |
| A J Southcoates Trading Ltd | Wholesale & retail | 2024 |
| A Leisure Ltd | Arts & recreation | 2024 |
| A M H Property Services Ltd | Construction | 2018 |
| A M Hardy Electrical Ltd | Construction | 2014 |
| A M Wilson Engineering Services Ltd | Manufacturing | 2022 |
| A Melia Property Limited | Professional & scientific | 2017 |
| A Oxtoby & SON Limited | Agriculture & fishing | 2012 |
| A P (Hull) Limited | Hospitality | 2025 |
| A P Shipping Customs Clearance Limited | Transport & logistics | 2021 |
| A Prop and a Half Ltd | Wholesale & retail | 2023 |
| A Recruitment Limited | Administrative & support | 2019 |
| A Rhodes JNR Caravans Ltd | Administrative & support | 2023 |
| A Space Architects Limited | Professional & scientific | 2009 |
| A Space Build Limited | Professional & scientific | 2015 |
| A Spence Electrical Ltd | Construction | 2023 |
| A Stamp Electrical Limited | Construction | 2018 |
| A Star Groundworks Limited | Construction | 2015 |
| A Star Property Ltd | Real estate | 2015 |
| A T Property Management Hull Ltd | Real estate | 2023 |
| A to Z Movers Ltd | Transport & logistics | 2025 |
| A Willis Consultant Ltd | Administrative & support | 2022 |
| A Year IS Going to Pass Anyway Limited | Health & social care | 2017 |
| A Younger Theatre Ltd | Arts & recreation | 2013 |
| A&A 11 Ltd | Transport & logistics | 2023 |
| A&A Asset Holding Ltd | Real estate | 2023 |
| A&D Local Shop Ltd | Wholesale & retail | 2026 |
| A&G Pro Ltd | Wholesale & retail | 2021 |
| A&J Commercial Refrigeration & Catering Equipment Limited | Wholesale & retail | 2024 |
| A&K Coaching Ltd | Education | 2024 |
| A&K Entertainment Limited | Hospitality | 2025 |
| A&K Machinery Ltd | Wholesale & retail | 2020 |
| A&L Financial Solutions Ltd | Financial services | 2015 |
| A&M Creative Sign Management Limited | Manufacturing | 2007 |
| A&M Direct Ltd | Real estate | 2025 |
| A&N Property Holdings Ltd | Real estate | 2025 |
| A&N Trans Ltd | Transport & logistics | 2025 |
| A&R Lettings and Management Ltd | Real estate | 2025 |
| A&S Hull Ltd | Hospitality | 2015 |
| A-W Assessors Limited | Health & social care | 2025 |
| A. Fanthorpe Limited | Wholesale & retail | 2004 |
| A. J. Building (Hull) Limited | Construction | 1996 |
| A. P. Haulage Limited | Transport & logistics | 2015 |
| A. P. Property Services (Hull) Ltd | Real estate | 2009 |
| A. P. Shipping Limited | Transport & logistics | 1996 |
| A. P. Shipping Machinery Sales Ltd | Wholesale & retail | 2017 |
| A. Ware Electrical Services Limited | Construction | 2003 |
| A.A.M.G. (Hull) Limited | Wholesale & retail | 2018 |
| A.B. Rooms & SON Limited | Other services | 2000 |
| A.Bancroft & Sons(Hull)Limited | Hospitality | 1935 |
| A.H Garden Maintenance Limited | Administrative & support | 2023 |
| A.J.A. Joinery Services Ltd | Construction | 2013 |
| A.J.N Electrical Services Ltd | Administrative & support | 2019 |
| A.K Fab-Weld Ltd | Construction | 2023 |
| A.L.L Global Wind Services Ltd | Construction | 2021 |
| A.M.I. Renewables Ltd | Administrative & support | 2019 |
| A.M.Trans Ltd | Transport & logistics | 2014 |
| A.N.D Construction Limited | Construction | 2025 |
| A.P. Shipping (Freight Services) Ltd | Professional & scientific | 1997 |
| A.R.J Anlaby Ltd | Other services | 2013 |
| A.R.U Recruitment Ltd | Education | 2015 |
| A.S.E. Inspection Ltd | Construction | 2015 |
| A.Salt Power & GAS Ltd | Energy | 2024 |