| 18A Cleveland Terrace (Whitby) Limited | Hospitality | 2008 |
| 22 Yellow Ltd | Professional & scientific | 2026 |
| A Car Care Centre Solutions Ltd | Wholesale & retail | 2021 |
| ABG Electrical Ltd | Construction | 2021 |
| Adamson Building Concepts Limited | Construction | 2022 |
| Adele Howitt Limited | Arts & recreation | 2003 |
| Adgie Wealth Services Ltd | Financial services | 2023 |
| AH Hornsea Ltd | Hospitality | 2024 |
| Alchemy at Home Ltd | Wholesale & retail | 2025 |
| Aloud Together CIC | Arts & recreation | 2024 |
| Andrew Lount Ltd | Professional & scientific | 2023 |
| ARCHIVOLVE3D Ltd | Professional & scientific | 2025 |
| ASA Food Services Ltd | Hospitality | 2023 |
| Athena Greek Taverna Ltd | Hospitality | 2025 |
| Augmentav Ltd | Information & communication | 2024 |
| B & H Blinds Ltd | Wholesale & retail | 2016 |
| Barker Close Management Ltd | Real estate | 2025 |
| Baron Hartley Wines Ltd | Wholesale & retail | 2023 |
| Behavioural Safety Mentors Ltd | Professional & scientific | 2016 |
| Bells Home Care Ltd | Health & social care | 2017 |
| Bemr Investments Ltd | Wholesale & retail | 2018 |
| Bevco Online Ltd | Wholesale & retail | 2015 |
| Bmer Properties Ltd | Real estate | 2018 |
| Bob-On Trading Ltd | Wholesale & retail | 2023 |
| Bookkeepers in Buckingham Limited | Professional & scientific | 2012 |
| Booth Property Services, Lettings and Management Ltd | Real estate | 2025 |
| Botany Boutique Ltd | Wholesale & retail | 2022 |
| Brampton House Hornsea Limited | Real estate | 2025 |
| BTB Planning Ltd | Wholesale & retail | 2022 |
| C Beacock Consultancy Ltd | Professional & scientific | 2019 |
| C M Allott & SON Limited | Other services | 2010 |
| C.A.L.O. Ltd | Construction | 2010 |
| Cafe Eden (Hornsea) Ltd | Hospitality | 2024 |
| Cammy Taylor Limited | Hospitality | 2018 |
| Carr Family Limited | Wholesale & retail | 2016 |
| CB Craft & Design Ltd | Manufacturing | 2025 |
| Centurion Guarantees Limited | Real estate | 1979 |
| Chip N Gails Limited | Hospitality | 2013 |
| Chris Kerfoot Decorating & Spraying Services Ltd | Construction | 2025 |
| Clare & Trindall Ltd | Hospitality | 2015 |
| Cloud 9 LC Ltd | Hospitality | 2024 |
| Cloud 9 RC Ltd | Hospitality | 2024 |
| Clutterbooks Limited | Wholesale & retail | 2025 |
| Coast to Coast Financial Services Limited | Professional & scientific | 2016 |
| Collis Plumbing and Heating Limited | Construction | 2019 |
| Corby Park Ltd | Professional & scientific | 2019 |
| Creative Abundance Studio Ltd | Wholesale & retail | 2024 |
| Cresswell M.E.S. Limited | Manufacturing | 2024 |
| Croftwoodhouse Limited | Construction | 2025 |
| Cross Solutions (Installations) Ltd | Construction | 2021 |
| Cweg Tech Ltd. | Information & communication | 2017 |
| D J Mitchell Limited | Wholesale & retail | 1999 |
| D.J. Prescott (Builders) Limited | Construction | 1984 |
| David Hannon Ltd | Extraterritorial | 2022 |
| Delph Group Ltd | Households | 2020 |
| Dixon & Dixon Ltd | Real estate | 2019 |
| DMG Site Services Limited | Manufacturing | 2012 |
| DR Technical Services Ltd | Wholesale & retail | 2017 |
| Dsgj Ltd | Financial services | 2024 |
| DU Industries Ltd | Wholesale & retail | 2014 |
| Eastgate Fulfilment Ltd | Wholesale & retail | 2022 |
| Eco Air Solutions Ltd | Construction | 2019 |
| Eden Change Consultancy Limited | Professional & scientific | 2013 |
| EE Investments Ltd | Administrative & support | 2022 |
| Eiger Suntime Company Limited(The) | Real estate | 1983 |
| Empack Ltd. | Manufacturing | 2013 |
| Endeavour Grove Ltd | Hospitality | 2015 |
| Esplanade Garage Ltd | Wholesale & retail | 2020 |
| Etton Engineering Ltd | Professional & scientific | 2025 |
| Events Party Hire Ltd | Hospitality | 2023 |
| Excel With Mark Ltd | Professional & scientific | 2024 |
| Fatboy Plant Hire Ltd | Administrative & support | 2026 |
| FB Foods Ltd | Hospitality | 2019 |
| Fiesta Events Ltd | Hospitality | 2023 |
| Five Bites Hornsea Ltd | Hospitality | 2025 |
| Fresco Gourmet Coffee Ltd | Wholesale & retail | 2016 |
| Gallagher Commercial Construction Services Limited | Professional & scientific | 2021 |
| Gasoline Competitions Limited | Wholesale & retail | 2024 |
| GG Delight Hornsea Ltd | Hospitality | 2025 |
| Gilsdean Developments Ltd | Construction | 2023 |
| Go Slow Espresso Ltd | Hospitality | 2025 |
| GR Studios Limited | Arts & recreation | 2024 |
| Grand Home Developments Ltd | Extraterritorial | 2010 |
| GV1951 Limited | Other services | 2012 |
| Gypsumworks Limited | Construction | 2025 |
| H Town Barbers Ltd | Other services | 2026 |
| Haigh Moor Road Property Company Limited | Extraterritorial | 2007 |
| Happy Under Canvas Ltd | Administrative & support | 2021 |
| Heald Limited | Manufacturing | 2000 |
| Heald Technologies Limited | Professional & scientific | 2010 |
| Healdprotect Ltd | Manufacturing | 2010 |
| Hornsea Barber Hull Ltd | Other services | 2022 |
| Hornsea Boat Launch Limited | Arts & recreation | 2012 |
| Hornsea Card Vault Ltd | Wholesale & retail | 2026 |
| Hornsea Collective Ltd | Administrative & support | 2022 |
| Hornsea Events CIC | Arts & recreation | 2024 |
| Hornsea Floral Hall | Arts & recreation | 2012 |
| Hornsea Floral Hall Trading Limited | Hospitality | 2013 |
| Hornsea Golf Club Limited | Arts & recreation | 1921 |
| Hornsea Group Ltd | Real estate | 2021 |