| Fusion (Chelmsford) Management Company Limited | Households | 2001 |
| Fusion 08 Limited | Other services | 2008 |
| Fusion Design and Fabrication Ltd | Manufacturing | 2021 |
| Fusion Landscape Ltd | Administrative & support | 2011 |
| Fusion Smart Repairs Ltd | Wholesale & retail | 2026 |
| Futgen Ltd | Information & communication | 2022 |
| Futsal Raptors Limited | Education | 2026 |
| Futurbuild Ltd | Real estate | 2021 |
| Futurco Ltd | Professional & scientific | 2020 |
| Future Air Conditioning Limited | Construction | 2006 |
| Future Bikes Trailhead Ltd | Wholesale & retail | 2022 |
| Future Builds Limited | Construction | 2023 |
| Future City Lawyers Limited | Education | 2020 |
| Future Electrical Limited | Construction | 2005 |
| Future Global Sports Ltd | Professional & scientific | 2015 |
| Future Landscapes Ltd | Administrative & support | 2015 |
| Future Metal Works Ltd | Manufacturing | 2018 |
| Future Point Solutions Ltd | Professional & scientific | 2017 |
| Future Stars Cycling Ltd | Arts & recreation | 2022 |
| Futuredatasol Ltd | Wholesale & retail | 2025 |
| Futureprop Limited | Real estate | 2020 |
| Futures Changing Ltd | Administrative & support | 2010 |
| Fuze Accounting Ltd | Professional & scientific | 2024 |
| Fuze Visual Ltd | Manufacturing | 2020 |
| FVG Consultancy Ltd | Information & communication | 2023 |
| FW 2020 Limited | Professional & scientific | 1989 |
| FX Morning Ltd | Professional & scientific | 2014 |
| FY Legal Services Ltd | Professional & scientific | 2017 |
| Fynnbrook Cars Ltd | Wholesale & retail | 2009 |
| G & B Promotions Limited | Administrative & support | 2013 |
| G & C Softwoods (Holdings) Limited | Financial services | 2016 |
| G & E Plastering Limited | Construction | 2003 |
| G & J Parker Limited | Construction | 1985 |
| G & K Scaffolding & Roofing Ltd | Construction | 2011 |
| G & L Auto Spares Limited | Water & waste | 2005 |
| G & M (Plumbing & Heating) Limited | Wholesale & retail | 2002 |
| G & S Car Centre Ltd | Wholesale & retail | 2017 |
| G a C Electrical Ltd | Construction | 2015 |
| G a Davies Limited | Agriculture & fishing | 1995 |
| G a Total Home Improvements Limited | Construction | 2013 |
| G B Squirrell Limited | Construction | 2003 |
| G C Plant Limited | Manufacturing | 2012 |
| G C Pro Build Limited | Construction | 2019 |
| G Certfied Bookkeepers Ltd | Professional & scientific | 2024 |
| G Clarke & SON Body Repairs Ltd | Wholesale & retail | 2026 |
| G Cottee Ltd | Construction | 2002 |
| G G Highways Ltd | Transport & logistics | 2023 |
| G H Heating Services Ltd | Construction | 2021 |
| G H Walker Ltd | Professional & scientific | 2019 |
| G J Pulham Limited | Construction | 2014 |
| G Jones Company Limited | Real estate | 2020 |
| G K Motor Factors Ltd | Wholesale & retail | 2014 |
| G M Bull Contracts Ltd | Construction | 2015 |
| G Millin & Sons Limited | Manufacturing | 2004 |
| G P Sails Ltd | Wholesale & retail | 2012 |
| G R Lowe Ltd | Agriculture & fishing | 2018 |
| G Thompson Engineering Limited | Manufacturing | 2012 |
| G W Commercial Heating Ltd | Construction | 2013 |
| G W Properties Essex Ltd | Real estate | 2025 |
| G Wynn Services Ltd | Health & social care | 2023 |
| G&D Creative Solutions Ltd | Wholesale & retail | 2023 |
| G&D Solutions Ltd | Administrative & support | 2020 |
| G&D Training Ltd | Education | 2025 |
| G&Jconroy Ltd | Health & social care | 2024 |
| G&L Sports Ltd | Education | 2021 |
| G&R Home Improvements Ltd | Construction | 2023 |
| G-Cat Engineering Ltd | Professional & scientific | 2022 |
| G-Pack Manufacturing Limited | Manufacturing | 1999 |
| G-Philms Productions Ltd | Information & communication | 2023 |
| G. Crowe & SON (Holdings) Limited | Professional & scientific | 1964 |
| G. Driessen JR. Rijswijk B.V. Trading AS Clear Risk Insurance Brokers Ltd | Financial services | 2015 |
| G. Granger Ltd | Professional & scientific | 2016 |
| G. K. Mitchell Limited | Real estate | 1973 |
| G.A.S.P Education and Consultancy Ltd | Professional & scientific | 2026 |
| G.B. Surfacing Ltd | Construction | 2018 |
| G.Mcphee’S Properties Limited | Real estate | 2024 |
| G.O.A.T Fencing and Landscaping Ltd | Administrative & support | 2024 |
| G.R.M. Roofing Company (Holdings) Limited | Construction | 2018 |
| G.R.M. Roofing Company Limited | Construction | 1986 |
| G2B Developments Ltd | Real estate | 2009 |
| G4DNW Ltd | Wholesale & retail | 2022 |
| GAA Project Solutions Limited | Professional & scientific | 2019 |
| Gable & Grain Limited | Manufacturing | 2022 |
| Gabler Medical (U.K.) Limited | Wholesale & retail | 1997 |
| Gabriel TAT Drummond EVO Limited | Wholesale & retail | 2024 |
| Gabriel TAT Drummond Expo Ltd | Wholesale & retail | 2025 |
| Gabriel Vasile Ionescu Ltd | Construction | 2022 |
| Gabsy Ltd | Administrative & support | 2018 |
| Gabyan Projects Ltd | Wholesale & retail | 2019 |
| GAC Plant Ltd | Administrative & support | 2024 |
| Gada Products Ltd | Wholesale & retail | 2023 |
| Gaelic Pure Scotch Whisky Limited | Manufacturing | 2011 |
| Gaetano Ltd | Health & social care | 2024 |
| Gaffs Services UK Limited | Transport & logistics | 2015 |
| Gaga Solutions Limited | Other services | 2023 |
| Gage Consult Ltd | Construction | 2017 |
| Gage Projects Ltd | Construction | 2017 |
| Gainsborough Business Centres Limited | Real estate | 2017 |
| Gainsborough Mews Management Limited | Households | 2004 |
| Gajula Software Solutions Ltd | Information & communication | 2009 |