| Fraser Coutts & Partners Limited | Real estate | 1994 |
| Freund UK Limited | Wholesale & retail | 2009 |
| Future Steps Global Ltd | Information & communication | 2025 |
| Fuxin Food Ltd | Hospitality | 2023 |
| Fuzzy-Felt Ltd | Manufacturing | 1996 |
| G B Gomme & SON Limited | Extraterritorial | 1998 |
| G B Taxation Ltd | Professional & scientific | 2011 |
| G S Photos Limited | Professional & scientific | 2006 |
| G&Jp Limited | Construction | 2016 |
| Galaxy Leisure Limited | Arts & recreation | 2012 |
| Gatherlink Trading Ltd | Manufacturing | 2026 |
| Geldbrook Limited | Construction | 1991 |
| General Steam Navigation C.I.C. | Transport & logistics | 2015 |
| Genesis Project Management Ltd | Construction | 2018 |
| GKH Housing Ltd | Real estate | 2023 |
| Glade Business Partners Limited | Information & communication | 2026 |
| Glass View Ltd | Administrative & support | 2025 |
| Glenister Developments Limited | Professional & scientific | 1997 |
| Globe Commercial Properties Limited | Real estate | 2023 |
| Globe Motorsport Limited | Administrative & support | 2024 |
| Globe Vehicle Hire and Sales Limited | Administrative & support | 2021 |
| GMD Project Solutions Ltd | Professional & scientific | 2013 |
| Gocruise Limited | Administrative & support | 2013 |
| Gold Matters Consulting Ltd | Professional & scientific | 1995 |
| Golden Tech Services Ltd | Information & communication | 2021 |
| Goldsmith Electrical Contractors Ltd | Construction | 2024 |
| Gommes Forge Limited | Manufacturing | 1974 |
| Gommes Letting Limited | Real estate | 2023 |
| Goodwill Flat Management Limited | Households | 1998 |
| Gordon Lillie Development Services Limited | Professional & scientific | 2006 |
| Gourmet Solutions Ltd | Hospitality | 2015 |
| Granger Estates (NO.2) Limited | Real estate | 2011 |
| Granger Estates Limited | Real estate | 1986 |
| Green Earth Landscapes Limited | Other services | 1999 |
| Green Motion Car and Van Rental Limited | Administrative & support | 2012 |
| Greenside Corporate Investments Limited | Financial services | 2020 |
| Gregory Moore Property Ltd | Real estate | 2016 |
| Greta Wray Limited | Real estate | 2014 |
| Grindelwald Productions Limited | Information & communication | 2004 |
| GSS Design Services Ltd | Information & communication | 2019 |
| Guard Security Services Limited | Transport & logistics | 2014 |
| Gwidigada Ltd | Other services | 2017 |
| Hair & Socials by Amie Limited | Professional & scientific | 2024 |
| Hammond & Co Properties Ltd | Real estate | 2021 |
| Hansard Coaching Limited | Information & communication | 2015 |
| Harmonea Ltd | Administrative & support | 1998 |
| Harrier Inventories Ltd | Households | 2022 |
| Harrison Medical Consultants Limited | Health & social care | 2013 |
| Hartley Optical Ltd | Wholesale & retail | 2014 |
| Harvics Limited | Real estate | 2022 |
| Harwood PR Limited | Professional & scientific | 2018 |
| Haven Oasis CIC | Health & social care | 2024 |
| Haybuild Ltd | Construction | 2025 |
| HCG Consulting Ltd | Administrative & support | 2024 |
| Headfast Limited | Wholesale & retail | 1989 |
| Hearing Dogs for Deaf People | Health & social care | 1985 |
| Hearing Dogs for Deaf People (Trading) Limited | Wholesale & retail | 1993 |
| Helm Productions Limited | Professional & scientific | 2017 |
| Hemley Hill Farm Ltd | Agriculture & fishing | 2024 |
| Hemley Hill Meadow Limited | Households | 2014 |
| Hfinance Ltd | Administrative & support | 2016 |
| HGH Resources Limited | Mining & quarrying | 2015 |
| Hill View Farm Nursery Ltd | Health & social care | 2024 |
| Hill View Herbarium Limited | Agriculture & fishing | 2020 |
| HJS Carpentry and Construction Ltd | Construction | 2022 |
| HMG Consultancy Ltd | Professional & scientific | 2025 |
| Hogarth Mews Residents Limited | Households | 2012 |
| Holly Green Dairy Ltd | Manufacturing | 2026 |
| Holly Green Farm Ltd | Financial services | 2024 |
| Home Farm Storage Limited | Other services | 2024 |
| Home of Rest Services Limited | Professional & scientific | 2025 |
| Homeopathic Solutions Limited | Health & social care | 2012 |
| Homescapes Properties Ltd | Real estate | 2022 |
| Hooked UP Tackle Ltd | Wholesale & retail | 2025 |
| Hopite Limited | Wholesale & retail | 2017 |
| Hornelets Limited | Real estate | 2020 |
| Horseshoe Investments Limited | Real estate | 2002 |
| Hotel Cake Limited | Manufacturing | 2019 |
| House of FUN (HOF) Ltd | Health & social care | 2022 |
| HR by Tara Ltd | Professional & scientific | 2022 |
| Hub Care Support Franchise Limited | Administrative & support | 2020 |
| Human Systems (Business Psychologists) Limited | Professional & scientific | 1998 |
| Hunava Ltd | Manufacturing | 2025 |
| Huntsmoore Capital Limited | Administrative & support | 1998 |
| Huntsmoore Estates Limited | Extraterritorial | 2012 |
| Hwange Limited | Administrative & support | 2025 |
| Hypnos Contract Beds Limited | Manufacturing | 2013 |
| Hypnos Limited | Manufacturing | 1926 |
| Ibis Trading Limited | Administrative & support | 2008 |
| Idealcoder Ltd | Information & communication | 2013 |
| Ideas to Run With Ltd | Professional & scientific | 2015 |
| Ifco Systems UK Ltd | Other services | 1994 |
| IFX Service Center UK Limited | Other services | 2022 |
| Ilecsys EOT Company Limited | Financial services | 2024 |
| Ilecsys Group (Trading) Limited | Manufacturing | 2023 |
| Ilecsys Installations Ltd | Wholesale & retail | 2018 |
| Ilecsys Limited | Wholesale & retail | 1997 |
| Ilecsys Rail Ltd | Wholesale & retail | 2012 |
| Imali Tree Ltd | Wholesale & retail | 2023 |
| Imperial Sleep Ltd. | Professional & scientific | 1956 |