| GKT Eims PVT Ltd | Real estate | 2025 |
| Glamz Cleaning Services Ltd | Administrative & support | 2026 |
| Glorious Ovation Ltd | Real estate | 2021 |
| Glosaas Ventures Limited | Information & communication | 2020 |
| Gold Blade Butcher Ltd | Manufacturing | 2025 |
| Golden Barrel Hospitality Limited | Hospitality | 2025 |
| Golden Glow Ltd | Wholesale & retail | 2015 |
| Golden Hour Productions Ltd | Information & communication | 2025 |
| Golden Skyway Company Ltd | Manufacturing | 2025 |
| Goldwell Investment Ltd | Real estate | 2021 |
| Gorelski Ltd | Construction | 2021 |
| Goshen DAN Ltd | Health & social care | 2015 |
| GR Homecare Limited | Health & social care | 2023 |
| GRC World Wide Ltd | Wholesale & retail | 2022 |
| Great Friends Club UK Ltd | Education | 2021 |
| Green Bounty Ltd | Wholesale & retail | 2025 |
| Green Feature Solutions Ltd | Professional & scientific | 2013 |
| Green Groce Ltd | Wholesale & retail | 2011 |
| Green Haven Gardens Ltd | Administrative & support | 2026 |
| Greenair Limited | Professional & scientific | 2013 |
| Greenlite Ltd | Construction | 2010 |
| Greentrak Store Ltd | Wholesale & retail | 2022 |
| Greenwich Bookkeeping and Accountancy Services Ltd | Professional & scientific | 2024 |
| Greenwich Care Limited | Health & social care | 2015 |
| Greenwich Roofing (South East) Ltd | Construction | 2019 |
| Gregory Digital Ltd | Wholesale & retail | 2022 |
| Groove Colonie Ltd | Administrative & support | 2020 |
| Growing Stars Nursery Canons Park Ltd | Health & social care | 2024 |
| Growing Stars Nursery Limited | Health & social care | 2014 |
| Growrent Ltd | Real estate | 2023 |
| Gruham Investment Limited | Real estate | 2020 |
| GS Carpets Limited | Administrative & support | 2020 |
| GSC Cards Ltd | Wholesale & retail | 2026 |
| GSP Distro Ltd | Wholesale & retail | 2017 |
| Gsrv Food Ltd | Hospitality | 2025 |
| Guardians Health Care Limited | Public administration | 2021 |
| Guernsey FC Holdings Limited | Arts & recreation | 2014 |
| Gulens UK Ltd | Hospitality | 2024 |
| Gulf Tributaries Ltd | Real estate | 2025 |
| Gurbaaz Construction (UK) Limited | Construction | 2025 |
| Gurung Medico Ltd | Health & social care | 2025 |
| Gusbert Properties Ltd | Real estate | 2021 |
| Gymfam Limited | Wholesale & retail | 2025 |
| H D Hirani Builders Ltd | Construction | 2009 |
| H&A FOX Ltd | Construction | 2026 |
| H.E Zest Ltd | Health & social care | 2016 |
| HA Alliance Ltd | Professional & scientific | 2025 |
| HAI Acasa Ltd | Wholesale & retail | 2015 |
| Hairshapes Limited | Other services | 2011 |
| Halcyon Global Ltd | Professional & scientific | 2006 |
| Halfnumb Ltd | Information & communication | 2022 |
| Hallans Contractors Ltd | Construction | 2023 |
| Halsion Construction Services Ltd | Professional & scientific | 2010 |
| Hamro Darjeeling UK Ltd | Health & social care | 2025 |
| Hamro Property Services Limited | Real estate | 2022 |
| Handmade British Curtains & Alterations Ltd | Manufacturing | 2018 |
| Happy Haven Properties Ltd | Real estate | 2025 |
| Happy Hearts Childcare Ltd | Health & social care | 2025 |
| Happy Island Ltd | Health & social care | 2025 |
| Happyways Ltd | Health & social care | 2014 |
| Hari Krishna Consultancy Limited | Real estate | 2022 |
| Harmony Thai Massage Ltd | Other services | 2017 |
| Harrods Education Limited | Education | 2018 |
| Hasan Tyres Ltd | Wholesale & retail | 2022 |
| Hashtag Telecoms Ltd | Information & communication | 2022 |
| Haven Hearts Ltd | Health & social care | 2023 |
| Hazzy Limited | Real estate | 2018 |
| HB Global Invest Tech Limited | Information & communication | 2013 |
| Hcmd Aesthetics Limited | Other services | 2025 |
| HCV Enterprises Limited | Hospitality | 2025 |
| Health Consultant Services UK Limited | Health & social care | 2017 |
| Heartwood Empire Ltd | Hospitality | 2023 |
| Heaven Nails 45 Ltd | Other services | 2023 |
| Hello Linen Ltd | Other services | 2025 |
| Henderson Hospitality Ltd | Hospitality | 2018 |
| Hephzibah Global Security Ltd | Administrative & support | 2017 |
| Heron Bespoke Ltd | Administrative & support | 2025 |
| Hgha Ltd | Health & social care | 2016 |
| HH Retail Limited | Transport & logistics | 2015 |
| High Wall Trading Company Ltd | Construction | 2025 |
| Highbury Continuity Services Ltd | Professional & scientific | 2024 |
| Highflying Events Limited | Hospitality | 2025 |
| Himbu UK Ltd | Wholesale & retail | 2023 |
| Hinco Ltd | Professional & scientific | 2019 |
| Hispanico Limited | Wholesale & retail | 2020 |
| Hive Property Investment Ltd | Real estate | 2023 |
| Hkja Ltd | Real estate | 2024 |
| HMK Building Services Limited | Manufacturing | 2012 |
| Hnde Limited | Wholesale & retail | 2019 |
| Hoangphucbuilder Ltd | Manufacturing | 2022 |
| Hokuriku Creative Ltd | Professional & scientific | 2016 |
| Holen Investments Limited | Information & communication | 2022 |
| Holistic Care U K Ltd | Health & social care | 2010 |
| Holleeday Lettings Limited | Real estate | 2026 |
| Holliemop Ltd | Administrative & support | 2025 |
| Home and Castle Property Group Ltd | Real estate | 2026 |
| Hometown Future Proofing Ltd | Construction | 2022 |
| Homevamp Ltd | Real estate | 2023 |
| Hook Lane Holdings Limited | Financial services | 2025 |
| Hook Lane Practice Limited | Health & social care | 2008 |