| Grass 2 Lawn Ltd | Administrative & support | 2020 |
| Graveney & Goodnestone Trust | Education | 2008 |
| Gravesend Van Hire Ltd | Transport & logistics | 2016 |
| Gray M.C.A Limited | Extraterritorial | 2014 |
| Gray Modern & Contemporary Art Limited | Wholesale & retail | 2010 |
| Gray Online Media Ltd | Information & communication | 2011 |
| Gray Plant Hire Limited | Administrative & support | 2003 |
| Gray Property Developments Ltd | Construction | 2016 |
| Great Kminor Ltd | Arts & recreation | 2026 |
| Great Leader (China) Limited | Professional & scientific | 2017 |
| Great Leaps Adventure CIC | Education | 2019 |
| Great Success (China) Limited | Professional & scientific | 2017 |
| Great Wall Marine and Offshore Service Co., Limited | Extraterritorial | 2016 |
| Great Works Ltd | Manufacturing | 2024 |
| Greece Gillingham Ltd | Hospitality | 2026 |
| Greedy G Collectibes Ltd | Wholesale & retail | 2025 |
| Greek Gillingham Take Way Ltd | Hospitality | 2025 |
| Green Bear Consulting Limited | Education | 2008 |
| Green Electrical Services Kent Limited | Construction | 2014 |
| Green Garage Services Ltd | Wholesale & retail | 2025 |
| Green Grass Outdoor Solutions Ltd | Administrative & support | 2014 |
| Green Materials Co., Ltd | Wholesale & retail | 2018 |
| Green Resource Solutions Limited | Information & communication | 2025 |
| Green Room SM Ltd | Administrative & support | 2024 |
| Greendrop Healthcare Limited | Wholesale & retail | 2023 |
| Greendrop Supplements Limited | Wholesale & retail | 2022 |
| Greenfield Computing Limited | Information & communication | 2019 |
| Greenleaf Joinery Ltd | Wholesale & retail | 2011 |
| Greenlow Property Co Ltd | Real estate | 2013 |
| Greenshed Spaces Ltd | Health & social care | 2023 |
| Greensted Plumbing and Heating Ltd | Construction | 2015 |
| Greycoats Management Limited | Households | 2020 |
| Grief and Gratitude App Ltd. | Health & social care | 2024 |
| Grief and Gratitude Ltd. | Health & social care | 2024 |
| Grigore.V.Services Ltd | Other services | 2015 |
| Grillerhg Ltd | Hospitality | 2023 |
| Groot Enterprises Ltd | Construction | 2021 |
| Grosvenor Hill Estates Limited | Real estate | 2020 |
| Grovehurst (Sittingbourne) Management Company Limited | Administrative & support | 1983 |
| Groves Financial Solutions Limited | Financial services | 2021 |
| Groves Property Group Ltd | Real estate | 2023 |
| Growerlink Produce Limited | Wholesale & retail | 2026 |
| Growing Minds Nursery and Pre-School Ltd | Education | 2024 |
| GS & VA Management Ltd | Other services | 2013 |
| GS Creator Ltd | Information & communication | 2023 |
| GS Rentals Ltd | Wholesale & retail | 2025 |
| GSE Plumbing & Heating Limited | Construction | 2015 |
| Gson Ltd. | Information & communication | 2012 |
| GSS Building Ltd | Construction | 2025 |
| Gtci Limited | Construction | 2009 |
| Gtec Drylining Ltd | Construction | 2025 |
| Guangdong Maner Steel Co., Ltd | Manufacturing | 2023 |
| Guangdong Steel Bull Iron Co., Ltd | Manufacturing | 2023 |
| Guangzhou Heremy Sports Goods Co., Ltd | Extraterritorial | 2018 |
| Guardian Event Medical Services Limited | Health & social care | 2015 |
| Guide Security Services Limited | Administrative & support | 1996 |
| Guru Nanak Gurdwara Kabaddi Club Gravesend Ltd | Arts & recreation | 2013 |
| Guscott's Building and Maintenance Limited | Construction | 2020 |
| Guys Court Management Limited | Households | 2003 |
| GWS Installations Ltd | Construction | 2024 |
| Gymaid Limited | Wholesale & retail | 1975 |
| Gymtazia Sports Ltd | Arts & recreation | 2023 |
| Gypsy Cooperative Kent Limited | Administrative & support | 2017 |
| H & H Property and Maintenance Ltd | Real estate | 2025 |
| H & L Special Cleaning Services Ltd | Administrative & support | 2025 |
| H Dhami Group Services Ltd | Hospitality | 2026 |
| H Paracha Ltd | Transport & logistics | 2025 |
| H R Bell Limited | Real estate | 1955 |
| H&C Custom Limited | Wholesale & retail | 2024 |
| H&E Safe Care Limited | Health & social care | 2017 |
| H&O Executive Security Limited | Administrative & support | 2026 |
| H07CNN Limited | Other services | 2018 |
| H3 Technical Engineering Services Ltd | Construction | 2021 |
| HA Distribuations Ltd | Wholesale & retail | 2026 |
| Hada Properties Ltd | Real estate | 2022 |
| Hafiz Decors Ltd | Wholesale & retail | 2025 |
| Hair Future Group Ltd | Extraterritorial | 2017 |
| Hakym Ventures Limited | Real estate | 2017 |
| Hale Building Services Ltd | Construction | 2015 |
| Hall School (Wincanton) Limited(The) | Education | 1956 |
| Halo From Pure Nails Ltd | Professional & scientific | 2000 |
| Haluma Investments Limited | Professional & scientific | 1989 |
| Hambledon South West Ltd | Real estate | 2025 |
| Hamlet Maintenance Ltd | Construction | 2019 |
| Hamlet South West Ltd | Real estate | 2011 |
| Hampson Insight Limited | Professional & scientific | 2026 |
| HAN Catering Ltd | Hospitality | 2025 |
| Hanaj Enterprises Limited | Wholesale & retail | 2019 |
| Hand to Home Ltd | Wholesale & retail | 2026 |
| Handy Sandi&Son Ltd | Construction | 2021 |
| Hangzhou Baige IMP & EXP Co., Ltd | Professional & scientific | 2018 |
| Hangzhou Jinlan Pharm-Drugs Technology Co., Ltd. | Extraterritorial | 2016 |
| Hangzhou Wiltop Import & Export Co., Limited | Extraterritorial | 2017 |
| Hanns Hair Design Limited | Other services | 2018 |
| Hanns Roofline Limited | Construction | 2018 |
| Haohaohome Limited | Real estate | 2016 |
| Happy Garden New Ltd | Hospitality | 2025 |
| Happyaide Ltd | Health & social care | 2023 |
| Happymanny Limited | Health & social care | 2026 |
| Hardy Foods Ltd | Hospitality | 2023 |