| ANA B. Interpreters Ltd | Professional & scientific | 2018 |
| ANA Maria Cristina Iacob Limited | Wholesale & retail | 2022 |
| Anam Services Ltd | Transport & logistics | 2025 |
| Anays&Mihaela Ltd | Transport & logistics | 2026 |
| ANC Property Services Ltd | Real estate | 2020 |
| Anchor Housing Services Limited | Real estate | 2026 |
| Ancora Psychological Consultancy Limited | Health & social care | 2012 |
| Anderson Groundworks (Hull) Limited | Construction | 2012 |
| Andersons Garage (Hull) Ltd | Wholesale & retail | 2025 |
| Andreas Driving Ltd | Transport & logistics | 2022 |
| Andrei Mihai Limited | Wholesale & retail | 2025 |
| Andressgrk Ltd | Administrative & support | 2024 |
| Andrew Earles (Anlaby Common) Limited | Administrative & support | 2012 |
| Andrew Jackson Company Secretaries Limited | Other services | 2020 |
| Andrew Jackson Limited | Professional & scientific | 2006 |
| Andrew Jackson Solicitors LLP | | 2016 |
| Andrew Johnson Construction Limited | Construction | 2014 |
| Andrew Johnson Knudtzon Limited | Transport & logistics | 1915 |
| Andrew M. Jackson & Co Limited | Professional & scientific | 1995 |
| Andrew Piper Financial Planning Ltd | Financial services | 2009 |
| Andrew Thetford Heating Limited | Construction | 2025 |
| Andrew Topping Private Clients Limited | Professional & scientific | 2017 |
| Andrews Electrical (Hull) Ltd | Construction | 2024 |
| Andrews Joinery Limited | Construction | 2016 |
| Andrews Property Management Ltd | Households | 2021 |
| Andritz Feed & Biofuel Limited | Manufacturing | 2000 |
| Andrzej Drozd Ltd | Transport & logistics | 2020 |
| Andy Cockerill Limited | Arts & recreation | 2012 |
| Andy Gowans Resin Systems Limited | Construction | 2018 |
| Andy INK Limited | Real estate | 2002 |
| Andy MOT Centre Limited | Wholesale & retail | 2017 |
| Andy Olsen Carpets & Flooring Limited | Construction | 2015 |
| Andy Smith (Hull) Limited | Construction | 2007 |
| Andy Talbot Joinery Limited | Construction | 2014 |
| Andy Thompson Carpets Ltd | Wholesale & retail | 2025 |
| Andy& Annie Ltd. | Hospitality | 2024 |
| Anele Well-Nest Ltd | Health & social care | 2024 |
| Aneta Complex Ltd | Professional & scientific | 2024 |
| Aneta Gzella Holdings Ltd | Financial services | 2025 |
| Angelo Facilities Ltd | Wholesale & retail | 2022 |
| Angels Beauty Lounge Limited | Other services | 2015 |
| Anglia Oils Limited | Manufacturing | 1980 |
| Angry Badger Ltd | Other services | 2022 |
| Ani-Tax Ltd | Professional & scientific | 2017 |
| Anil Kumar Limited | Wholesale & retail | 2019 |
| Anku Ltd | Other services | 2017 |
| Anlaby Beer Club Ltd | Hospitality | 2024 |
| Anlaby Estates Limited | Agriculture & fishing | 1950 |
| Anlaby European Market Ltd | Wholesale & retail | 2026 |
| Anlaby Express 1 Ltd | Wholesale & retail | 2025 |
| Anlaby Express Ltd | Wholesale & retail | 2024 |
| Anlaby Flats Management Limited | Real estate | 1976 |
| Anlaby Garden Services Ltd | Administrative & support | 2003 |
| Anlaby Homes Limited | Real estate | 2026 |
| Anlaby House Management Limited | Households | 2006 |
| Anlaby Mini Market Ltd | Wholesale & retail | 2025 |
| Anlaby Nail & Spa Ltd | Other services | 2023 |
| Anlaby Park 1962 Limited | Extraterritorial | 2015 |
| Anlaby Park Hotel Ltd | Hospitality | 2023 |
| Anlaby Plumbing Services Ltd | Construction | 2024 |
| Anlaby Road Carpets Limited | Wholesale & retail | 2006 |
| Anlaby Road Market Ltd | Wholesale & retail | 2026 |
| Anlaby Road Premier Ltd | Wholesale & retail | 2024 |
| Anlabystreetfood Ltd | Hospitality | 2026 |
| Anna Medicare Limited | Health & social care | 2021 |
| Annie Nails & Beauty 6868 Limited | Other services | 2026 |
| Anpak & LK Limited | Wholesale & retail | 2019 |
| Ansar Property Limited | Real estate | 2024 |
| Anson Electronics Limited | Wholesale & retail | 1975 |
| ANT BUG Ltd | Transport & logistics | 2025 |
| ANT Pro 2018 Limited | Information & communication | 2018 |
| Antares Strategy Ltd | Administrative & support | 2022 |
| Anthony Dinnen Civil Engineering Ltd | Construction | 2019 |
| Anthony Shaw Leisure Heron Unlimited | Real estate | 2013 |
| Anthony Shaw Leisure Unlimited | Arts & recreation | 1980 |
| Anthrop Capital Limited | Professional & scientific | 2010 |
| Anti Vandal Cabins Hull Limited | Manufacturing | 2024 |
| Anti Vandal Shutters Limited | Professional & scientific | 2004 |
| Anti Vandal Solutions Ltd | Manufacturing | 2024 |
| Antiropy Limited | Information & communication | 2025 |
| Antler Club Ltd | Hospitality | 2026 |
| Anviparth Investments Ltd | Real estate | 2021 |
| Anviparth Ltd | Health & social care | 2015 |
| Anymo Solutions Limited | Information & communication | 2026 |
| Aoay Limited | Wholesale & retail | 2024 |
| AOC Crown and Thread Africa Limited | Wholesale & retail | 2026 |
| AP - Veterinary Services Limited | Professional & scientific | 2018 |
| AP Auto Repairs Ltd | Wholesale & retail | 2014 |
| AP Dreamscapes Ltd | Hospitality | 2025 |
| AP Offshore Consultants Limited | Professional & scientific | 2023 |
| AP Steel Design Limited | Professional & scientific | 2024 |
| AP Workwear Limited | Wholesale & retail | 2012 |
| Ap-Trans Ltd | Transport & logistics | 2023 |
| APC Clothing Limited | Manufacturing | 1999 |
| Aperture Blundell Ltd | Professional & scientific | 2026 |
| Apex Foodies Ltd | Hospitality | 2024 |
| Apex Geotechnics Limited | Professional & scientific | 2019 |
| Apex Heat Ltd | Construction | 2020 |
| Apex Instrument Measurement and Control Ltd | Professional & scientific | 2025 |
| Apex Lets Ltd | Real estate | 2025 |