| Fred and Doug's Properties Ltd | Real estate | 2021 |
| Freightcompare.Com Limited | Information & communication | 2014 |
| Full Works Projects Limited | Real estate | 2015 |
| Fullmen Contracts Limited | Professional & scientific | 2001 |
| Fullmen Limited | Manufacturing | 1986 |
| Furniture Box Essex Limited | Wholesale & retail | 2022 |
| Future Packaging Limited | Manufacturing | 1985 |
| FX Best Ltd | Administrative & support | 2022 |
| G & I Freight Limited | Transport & logistics | 2025 |
| G & T Airconditioning Limited | Construction | 2022 |
| G D Fire Limited | Construction | 2021 |
| G H & S J Ellis Limited | Extraterritorial | 2017 |
| G T Leaseholding Limited | Real estate | 2012 |
| G T Promotions Limited | Real estate | 2005 |
| G. Yarwood Ceilings & Partitioning Limited | Construction | 2005 |
| G.A.F. Heley Limited | Extraterritorial | 2013 |
| G.H. Klein & SON Limited | Manufacturing | 1958 |
| G.H.R Southern Holdings Limited | Financial services | 2026 |
| G2 Relocation Services Ltd | Hospitality | 2025 |
| Gabnel Properties Ltd | Real estate | 2024 |
| Gaming Media Solutions Limited | Professional & scientific | 2005 |
| Gara Rock Governance Consultants Limited | Professional & scientific | 2016 |
| Garretts Bodyworks Limited | Wholesale & retail | 2003 |
| GAS Plus Services Ltd | Construction | 2018 |
| Gatecraft Fencing Services Limited | Administrative & support | 1995 |
| GD Property Solutions Ltd | Households | 2024 |
| GDM Living Ltd | Real estate | 2025 |
| GEM & Sons Ltd | Real estate | 2014 |
| Gemini Beauty Ltd | Other services | 2019 |
| General FAB (Essex) Limited | Manufacturing | 2023 |
| Geoair Solar Limited | Construction | 2025 |
| Geoff Keane Carpets Limited | Construction | 1987 |
| George's Brewery Limited | Manufacturing | 2010 |
| Gerda Doors Ltd | Other services | 2021 |
| Gestbrand Ltd | Real estate | 2022 |
| Gestet Ltd | Real estate | 2026 |
| Geteg Ltd | Real estate | 2026 |
| GHG Contracts Limited | Construction | 2015 |
| Gi.Vi. Holdings Limited | Education | 2024 |
| Gillaley Limited | Real estate | 2023 |
| Gillett Morrissey Properties Limited | Real estate | 2019 |
| Gillton Limited | Real estate | 2017 |
| Ginnyfox UK Limited | Real estate | 2000 |
| Giraffe Centre Limited | Education | 2021 |
| Girl Friday Academy Ltd | Other services | 2023 |
| Girl Friday Salon Ltd | Other services | 2023 |
| GKM (Essex) Investments Ltd | Real estate | 2022 |
| Glaseton Estate Ltd | Real estate | 2019 |
| Glass Office Partition Ltd | Extraterritorial | 2020 |
| Glass Seal Interiors Limited | Construction | 2008 |
| Glisten Cleaning Group Ltd | Administrative & support | 2023 |
| Glow Landscape & Groundworks Limited | Construction | 2019 |
| GMD Mowers, Tools and Hardware Limited | Wholesale & retail | 2013 |
| GMJ Property Developments Ltd | Real estate | 2022 |
| GMR Engineering Limited | Professional & scientific | 1996 |
| Gmsw Consultancy Ltd | Construction | 2013 |
| Goldmine Amusements Limited | Arts & recreation | 2022 |
| Gordon's GAS & Heating Limited | Construction | 2024 |
| Gorgerville Limited | Real estate | 2024 |
| Goshen Base Ltd | Health & social care | 2020 |
| Goshen Business Limited | Administrative & support | 2016 |
| Gpwn Construction Ltd | Construction | 2025 |
| GR Joinery Fit OUT Ltd | Construction | 2014 |
| Graded City Ltd | Other services | 2022 |
| Graham Maintenance Ltd | Other services | 2009 |
| Grangewood (Southern) Limited | Construction | 2016 |
| Grangewood Commercial Limited | Construction | 2026 |
| Grangewood Investments Limited | Real estate | 2013 |
| Grangewood Limited | Construction | 2019 |
| Granite Property Management Services Ltd | Households | 2022 |
| Grannell Steel Limited | Manufacturing | 2000 |
| Grapefruit Consulting Limited | Other services | 2018 |
| GRB Carpentry & Building Ltd | Construction | 2015 |
| Greatline Management Ltd | Households | 2021 |
| Greitzer and Associates Limited | Other services | 2018 |
| Groove Inc Limited | Construction | 2012 |
| Groundwise Searches Limited | Other services | 2000 |
| GSQ Brickwork Limited | Construction | 2011 |
| Guaranteed Homes Ltd | Real estate | 2021 |
| Guysinlogistics Ltd | Transport & logistics | 2025 |
| GWS Assets Ltd | Real estate | 2025 |
| Gym's Kitchen Ltd | Hospitality | 2011 |
| H R Construction Essex Ltd | Construction | 2020 |
| H&S Autocare Ltd | Wholesale & retail | 2017 |
| H. & C. Meats (Smithfield) Limited | Wholesale & retail | 1980 |
| H. Aesthetics Ltd | Health & social care | 2019 |
| H4 Property Limited | Construction | 2015 |
| Habermel Associates Limited | Other services | 2003 |
| Hadas Estates Ltd | Real estate | 2021 |
| Hadas Properties Ltd | Real estate | 2023 |
| Haeems Limited | Real estate | 1995 |
| Hafod Interim Limited | Professional & scientific | 2014 |
| Hair Pro 1 Ltd | Education | 2019 |
| Hair Pro 1 Wellbeing C.I.C. | Education | 2025 |
| Hairemedy Ltd | Manufacturing | 2025 |
| Halcon Marine Limited | Real estate | 1967 |
| Halifax Management Ltd | Real estate | 2015 |
| Hallcroft (GB) Ltd | Manufacturing | 2013 |
| Hallmark Partyhire & Events Ltd | Hospitality | 2024 |
| Halo Spa Ltd | Other services | 2019 |