| GUD Ideas Web Design Ltd | Information & communication | 2014 |
| Guestia Limited | Information & communication | 2018 |
| Guide Projects Ltd | Professional & scientific | 2023 |
| Guiding Light Care Ltd | Other services | 2022 |
| Gumbles Amusements Limited | Arts & recreation | 2022 |
| Gunn Leese Property Management Limited | Households | 1997 |
| GUR AI Ltd | Information & communication | 2021 |
| Gurkha Dining UK Ltd | Hospitality | 2019 |
| Gurkha-Inn Cranfield UK Ltd | Hospitality | 2023 |
| Guroots Ltd | Hospitality | 2023 |
| Gusto Catering Limited | Hospitality | 2010 |
| Gutkind Ltd | Manufacturing | 2026 |
| GUY Friday Ltd | Administrative & support | 2023 |
| Guzel & Co Limited | Wholesale & retail | 2023 |
| GV Highend Construction Ltd | Construction | 2025 |
| GV Property Group Limited | Construction | 2026 |
| Gwop Limited | Administrative & support | 2022 |
| Gwpc Limited | Real estate | 2022 |
| Gwyneth Jewellery Limited | Manufacturing | 2025 |
| Gxcardiology Ltd | Health & social care | 2017 |
| GY Digital Services Ltd | Administrative & support | 2026 |
| Gymblox Ltd | Wholesale & retail | 2017 |
| Gymnastics Reborn Ltd | Education | 2021 |
| Gymrush Limited | Arts & recreation | 2020 |
| Gypsum Plastering & Drylining Contractors Ltd | Construction | 2013 |
| Gypsy Stables Ltd | Other services | 2015 |
| H & C Beard Limited | Administrative & support | 2018 |
| H & E Removals Ltd | Transport & logistics | 2024 |
| H & H Express Limited | Transport & logistics | 2016 |
| H & P Software Services Limited | Information & communication | 2010 |
| H Hammond Group Ltd | Financial services | 2026 |
| H Limited | Professional & scientific | 1988 |
| H S Developments Limited | Construction | 2022 |
| H W Mason & Sons Limited | Other services | 2009 |
| H&C Homes Ltd | Real estate | 2018 |
| H&F Homecare Limited | Wholesale & retail | 2018 |
| H&G Industrial Developments Ltd | Real estate | 2023 |
| H&J Rentals Ltd | Real estate | 2024 |
| H&N Partners Ltd | Real estate | 2023 |
| H&P Removals Ltd | Transport & logistics | 2026 |
| H'S Lettings Ltd | Real estate | 2020 |
| H.J.T&F Ltd | Other services | 2020 |
| H.R.Y Health Limited | Health & social care | 2024 |
| H2YI Group Ltd | Wholesale & retail | 2021 |
| HA Hearing Ltd | Health & social care | 2021 |
| HA Precision Engineering & Welding Services Ltd | Manufacturing | 2023 |
| Haaameem Ltd | Information & communication | 2026 |
| Haak Inspire Ltd | Real estate | 2025 |
| Haas Solutions Ltd | Information & communication | 2023 |
| Habco EC Limited | Construction | 2011 |
| Habilis Care Homes Ltd | Health & social care | 2011 |
| Habilis Operations Limited | Health & social care | 2011 |
| Habipol Ltd | Extraterritorial | 2023 |
| Habitat Landscapes Ltd | Construction | 2011 |
| Habitat Preschool Limited | Education | 2008 |
| Hacht Skis Limited | Manufacturing | 2022 |
| Haden Dean Ltd | Wholesale & retail | 2023 |
| Hadenhill Systems Limited | Manufacturing | 1990 |
| Hades Gaming Ltd | Arts & recreation | 2022 |
| Hades Properties Ltd | Real estate | 2019 |
| Hadrian 4 Ltd | Real estate | 2025 |
| Hadrian 5 Ltd | Real estate | 2025 |
| Hadrian 6 Ltd | Real estate | 2026 |
| Hadrian 7 Ltd | Real estate | 2026 |
| Hagen Automation Ltd | Manufacturing | 2015 |
| Haidari Limited | Hospitality | 2025 |
| Haines Enterprise (Bedford) Ltd | Real estate | 2026 |
| Haines Watts Bedford Limited | Professional & scientific | 2013 |
| Hair and Beauty Charity | Other services | 2016 |
| Hairbybridget Limited | Other services | 2023 |
| Hairbyrio Ltd | Other services | 2022 |
| Haire Investments Limited | Real estate | 2019 |
| HAL Medics Limited | Health & social care | 2018 |
| Halal AI Automation Ltd | Information & communication | 2026 |
| Halal Dixy Ltd | Hospitality | 2021 |
| Hale Lodge Management Company Limited | Households | 1969 |
| Hall & Hane Limited | Professional & scientific | 2025 |
| Hall Brothers Limited | Professional & scientific | 2006 |
| Hall Education and Training Services Limited | Education | 2016 |
| Hall END Units Limited | Real estate | 2023 |
| Hall Property Investments Ltd | Real estate | 2025 |
| Hallauer Consulting Ltd | Professional & scientific | 2014 |
| Hallows Bedford Ltd | Real estate | 2018 |
| Halls Public House Ltd | Hospitality | 2026 |
| Hallstone Group Ltd | Professional & scientific | 2022 |
| Halo Nightclubs Ltd | Hospitality | 2024 |
| Halo Scaffolding Ltd | Construction | 2020 |
| Halves and Plenty of 'EM Limited | Hospitality | 2017 |
| Hambrand Technology Limited | Information & communication | 2017 |
| Hamed Used Car Ltd | Wholesale & retail | 2026 |
| Hamilton Appointments Limited | Administrative & support | 2020 |
| Hammer & Stitch Ltd | Other services | 2018 |
| Hammer Carpentry Limited | Construction | 1998 |
| Hammj Data Solutions Ltd | Information & communication | 2022 |
| Hammond Interiors Limited | Administrative & support | 2004 |
| Hammond Property Investments Ltd | Real estate | 2026 |
| Hammond Weddings Limited | Wholesale & retail | 1999 |
| Hampland Ltd | Real estate | 2022 |
| Hampson's Homes Ltd | Real estate | 2023 |
| Hampstead Food & Drinks Ltd | Wholesale & retail | 2012 |