| Futuristic Home Developments Ltd | Construction | 2020 |
| Futurix Traders Ltd | Wholesale & retail | 2025 |
| Fvectors Limited | Information & communication | 2025 |
| FW Finance Ltd | Professional & scientific | 2026 |
| FX Global Ltd | Financial services | 2025 |
| Fxtb(Uk) Limited | Information & communication | 2022 |
| FYZ Engineering Ltd | Professional & scientific | 2022 |
| FZ Investments Limited | Real estate | 2022 |
| FZ Software Solutions Limited | Information & communication | 2013 |
| FZ Traders Private Ltd | Wholesale & retail | 2025 |
| G & B (LA) Property Ltd | Real estate | 2025 |
| G & B Super Store Limited | Wholesale & retail | 2006 |
| G & G Boutique Ltd | Wholesale & retail | 2023 |
| G & G Consultants Limited | Professional & scientific | 2012 |
| G & G Global Ltd | Hospitality | 2007 |
| G & G Multani Limited | Transport & logistics | 2024 |
| G & J Ahluwalia LLP | | 2020 |
| G & Json Construction Ltd | Construction | 2023 |
| G & S Property Investments Limited | Real estate | 2002 |
| G & S Ventures Limited | Real estate | 2009 |
| G a R Signals Limited | Professional & scientific | 2002 |
| G Arora Medical Services Limited | Health & social care | 2014 |
| G B Autos Ltd | Wholesale & retail | 2004 |
| G B Transport Limited | Transport & logistics | 1998 |
| G Bater Ltd | Wholesale & retail | 2000 |
| G Cornish Limited | Construction | 1997 |
| G E Building Limited | Construction | 2020 |
| G F G Global Trading Ltd | Wholesale & retail | 2025 |
| G G Services (London) Limited | Construction | 2015 |
| G Hamid Construction Ltd | Construction | 2006 |
| G Jayes Interiors Limited | Construction | 2008 |
| G K Lounge Limited | Hospitality | 2022 |
| G L Brothers Limited | Construction | 2018 |
| G M Investments (London) Limited | Real estate | 2019 |
| G M Management Ltd | Real estate | 2024 |
| G Macnicol & Sons Limited | Construction | 2009 |
| G Medical Supply Ltd | Wholesale & retail | 2025 |
| G Medical Trade Limited | Wholesale & retail | 2024 |
| G S Ranu Ltd | Real estate | 2017 |
| G Secure Services Limited | Administrative & support | 2024 |
| G&B Rental Estate Ltd | Real estate | 2026 |
| G&D Cabinet Makers Ltd | Other services | 2012 |
| G&D Supply Ltd | Wholesale & retail | 2023 |
| G&G International Transport Limited | Transport & logistics | 2024 |
| G&G Property Associates Ltd | Real estate | 2022 |
| G&I Horizons Investment Ltd | Construction | 2023 |
| G&V Brothers Ltd | Transport & logistics | 2026 |
| G&V Construction Ltd | Construction | 2019 |
| G'S Equip UK Ltd | Manufacturing | 2024 |
| G-Cloud IT Ltd | Information & communication | 2017 |
| G. a. Electrical Services UK Limited | Professional & scientific | 2009 |
| G. C. Painting Ltd | Construction | 2017 |
| G. Dunca Construction Ltd | Professional & scientific | 2026 |
| G.A. Fit OUT Ltd | Construction | 2023 |
| G.M. Jones Construction Ltd | Construction | 2015 |
| G.M.S.(Ilford) Ltd | Wholesale & retail | 1999 |
| G.N Surgical Ltd | Wholesale & retail | 2022 |
| G.Rukas Ltd | Manufacturing | 2015 |
| G.S. Bhullar Constructions Limited | Construction | 2022 |
| G.Singh Groundwork Ltd | Construction | 2022 |
| G.T.Carpenters and Joiners Ltd | Construction | 2019 |
| G1 Contractors Limited | Construction | 2012 |
| G13 Music Ltd | Information & communication | 2018 |
| G3 Facilities Management Ltd | Administrative & support | 2025 |
| G3 Security Limited | Administrative & support | 2008 |
| G5T Limited | Education | 2024 |
| G8 Properties Ltd | Real estate | 2010 |
| G8 the Great Ltd | Construction | 2023 |
| G9 Security Services Ltd | Administrative & support | 2021 |
| GA & SA Property Limited | Real estate | 2015 |
| GA Bhullar Construction Ltd | Construction | 2020 |
| GA Electrical UK Limited | Construction | 2015 |
| GA Flooring Ltd | Construction | 2018 |
| GA Group Limited | Professional & scientific | 2016 |
| GA Legal Services Limited | Professional & scientific | 2022 |
| GA Merchandise Limited | Information & communication | 2019 |
| GAA Holding Ltd | Wholesale & retail | 2014 |
| Gaangchill Ltd | Transport & logistics | 2014 |
| Gabriel Chauffeuring Services Limited | Transport & logistics | 2026 |
| Gabriel Trading Ltd | Wholesale & retail | 2017 |
| Gabs Unic Services Ltd | Administrative & support | 2019 |
| Gaby&Yanis Transport Ltd | Transport & logistics | 2026 |
| GAD Healthcare Ltd | Wholesale & retail | 2014 |
| Gadget Armor Ltd | Wholesale & retail | 2014 |
| Gadget FIX Ltd | Other services | 2023 |
| Gadget Globe Limited | Wholesale & retail | 2019 |
| Gadget Place Limited | Wholesale & retail | 2024 |
| Gadget Solution Experts Ltd | Wholesale & retail | 2024 |
| GADGET247 Ltd | Wholesale & retail | 2014 |
| Gadgetnation UK Ltd | Wholesale & retail | 2025 |
| Gadgets and More Ltd | Wholesale & retail | 2024 |
| Gadgets Geek Ltd | Wholesale & retail | 2022 |
| Gadgets LOT Ltd | Wholesale & retail | 2025 |
| Gadgets Recycle Ltd | Other services | 2016 |
| Gaffar Lettings Ltd | Real estate | 2019 |
| GAG Build Ltd | Construction | 2021 |
| Gain Momentum Ltd | Real estate | 2002 |
| Gainsborough Mews Ltd | Construction | 2022 |
| Gaitanjudo Ltd | Construction | 2025 |
| Gakhal Heating and Building Services Limited | Construction | 2014 |