| ALT Services Limited | Professional & scientific | 2003 |
| Amazon Electrical Services Limited | Administrative & support | 2009 |
| Ambic Manufacturing Limited | Manufacturing | 2020 |
| American Nails 19 Ltd | Other services | 2024 |
| Ammi Investments Ltd | Real estate | 2022 |
| Amphitrite Properties Ltd | Construction | 2021 |
| Anchor Yard Ltd | Arts & recreation | 2018 |
| Andrem Limited | Construction | 1994 |
| Andrew M Clayton Ltd | Health & social care | 2023 |
| Andrew Marsh Ltd | Construction | 2008 |
| Andrew Symonds Haulage Limited | Transport & logistics | 2004 |
| Andy Mchale GAS & Electrical Services Ltd | Construction | 2024 |
| Andy's Tyres (Bridlington) Ltd | Wholesale & retail | 2007 |
| Angl OIL Ltd | Water & waste | 2023 |
| Anoesis Developments Limited | Construction | 2020 |
| Anser Ecology Limited | Professional & scientific | 2014 |
| ANT Electrical Ltd | Construction | 2023 |
| Antony Shackleton Limited | Wholesale & retail | 2002 |
| APARTMENTS@52 Bridlington Ltd | Hospitality | 2020 |
| APARTMENTS@52 Ltd | Hospitality | 2020 |
| APC Transport Ltd | Transport & logistics | 2019 |
| Apexj Ltd | Wholesale & retail | 2026 |
| APN Holidays Limited | Hospitality | 2024 |
| APN Leisure Limited | Hospitality | 2012 |
| App Audits Limited | Professional & scientific | 2024 |
| Applecart Research Ltd | Information & communication | 2025 |
| Applied Industry Training Limited | Professional & scientific | 2016 |
| Arcade Arts Ltd | Arts & recreation | 2020 |
| Arrows Fleet Management Solutions Ltd | Information & communication | 2020 |
| Arundel Leisure Group Limited | Hospitality | 2021 |
| Arwenix Limited | Hospitality | 2011 |
| ARX Security Services Limited | Wholesale & retail | 2025 |
| AS Accountancy, Bookkeeping & Consultancy Ltd | Professional & scientific | 2020 |
| AS Barber Shop Ltd | Other services | 2024 |
| Ashan Express Ltd | Wholesale & retail | 2021 |
| Ashington & District Estates Company Limited(The) | Real estate | 1928 |
| Ashville Court Limited | Households | 2017 |
| Asset Grid Holdings Limited | Wholesale & retail | 2023 |
| AT Clearance Ltd | Wholesale & retail | 2024 |
| Atkinson Hicks Marine Ltd | Professional & scientific | 2023 |
| Atkinson Offshore Ltd | Construction | 2022 |
| Atlanta 11 Limited | Agriculture & fishing | 1999 |
| Atlas Edge Property Ltd | Construction | 2024 |
| Atlas Total Contracting Ltd Ltd | Construction | 2025 |
| Aureolin Consulting Limited | Professional & scientific | 2019 |
| Aureolin Group Limited | Financial services | 2019 |
| Aureolin Lettings Limited | Real estate | 2021 |
| Aureolin Property Limited | Construction | 2015 |
| Aureus Leisure Limited | Hospitality | 2010 |
| Aurora Urban Estates Limited | Real estate | 2024 |
| Aviation Automation and Control Limited | Information & communication | 2011 |
| AVP Properties Limited | Real estate | 2013 |
| B & C Jordan Properties Limited | Hospitality | 2008 |
| B & W Properties (Yorkshire) Limited | Construction | 2021 |
| B B Electrics (Bridlington) Limited | Construction | 2008 |
| B Clayton Plumbing & Heating Limited | Construction | 2014 |
| B D Cowan Groundworks Ltd | Construction | 2016 |
| B K Fishing Co Limited | Agriculture & fishing | 2018 |
| B W Manufacturing Limited | Manufacturing | 2002 |
| B. Brown & SON Limited | Construction | 2002 |
| B. T. Produce Ltd | Agriculture & fishing | 2004 |
| B.A.C Consultancy Group Ltd | Manufacturing | 2019 |
| B.S.B. Developments Limited | Construction | 1985 |
| B.W. Industries (Group) Limited | Professional & scientific | 2016 |
| B.W. Industries (Steel) Limited | Professional & scientific | 2026 |
| B.W. Industries (UK) Limited | Professional & scientific | 2019 |
| B.W.Industries Ltd | Manufacturing | 1974 |
| BA Topco Limited | Real estate | 2021 |
| Bar Buddha Bridlington Limited | Hospitality | 2025 |
| Barker's Outside Catering Limited | Hospitality | 2025 |
| Baron-Colairo Engineering Ltd | Manufacturing | 2023 |
| Barton Farms (Kilham) Ltd | Agriculture & fishing | 2014 |
| Baycity Management Limited | Hospitality | 1995 |
| Bayside FUN Park Ltd | Arts & recreation | 2025 |
| Bayview (Bridlington) Management Company Limited | Extraterritorial | 2016 |
| Bayview Developments (Bridlington) Limited | Hospitality | 2014 |
| Beach House Apartments Ltd | Households | 2021 |
| Beachcomber Meditation Ltd | Education | 2026 |
| Beachology Ltd | Wholesale & retail | 2023 |
| Beaconsfield Apartments Ltd | Hospitality | 2020 |
| Beasley Developments Yorkshire Limited | Construction | 2026 |
| Beasley Groundworks Limited | Construction | 2018 |
| Beasley Hire and Sales Limited | Wholesale & retail | 2025 |
| Beauty Palace TM Ltd | Other services | 2023 |
| Beckett Structural Ltd | Professional & scientific | 2021 |
| Bee-Witched Limited | Wholesale & retail | 2022 |
| Beerclub Limited | Wholesale & retail | 2015 |
| Belcater Ltd | Hospitality | 2025 |
| Bells Rail Engineering Ltd | Professional & scientific | 2018 |
| Belschnickel Brewery Limited | Manufacturing | 2022 |
| BEN Marshall Property Ltd | Real estate | 2023 |
| Bennetts Properties Bridlington Limited | Real estate | 2026 |
| Beresford Property Ltd | Real estate | 2019 |
| Berrys Properties Limited | Real estate | 2019 |
| Bespoke Glow Ltd | Extraterritorial | 2022 |
| Bessingby Enterprises Limited | Real estate | 1994 |
| Betta Bodies Yorkshire Ltd | Wholesale & retail | 2026 |
| Beverley Ambulance Service Limited | Health & social care | 2014 |
| Beverley Holiday Homes Limited | Wholesale & retail | 2016 |
| Bfss Limited | Administrative & support | 2021 |