| Gakhar Telemarketing Ltd | Administrative & support | 2018 |
| Gala Foods Ltd | Wholesale & retail | 2019 |
| Gala SH Estates Limited | Real estate | 2025 |
| Galaxdicom Ltd | Wholesale & retail | 2024 |
| Galaxy Business Centre Ltd | Real estate | 2024 |
| Galaxy Entertainment Ltd | Manufacturing | 2021 |
| Galaxy Properties Management Limited | Real estate | 2015 |
| Galaxy Property Services and Installations Ltd | Construction | 2025 |
| Galaxy Toys Limited | Transport & logistics | 1987 |
| Gallerykitch Ltd | Wholesale & retail | 2025 |
| GAM General Building Limited | Construction | 2012 |
| Gamage Solutions Ltd | Transport & logistics | 2021 |
| Gamapex Ltd | Wholesale & retail | 2023 |
| Game Freak Limited | Wholesale & retail | 2020 |
| Gamesandthings Limited | Wholesale & retail | 2022 |
| Gameverse Labs Ltd | Information & communication | 2023 |
| Gamifai Ltd | Information & communication | 2023 |
| Gamilaa Ltd | Wholesale & retail | 2025 |
| Gamsnwar Ltd | Health & social care | 2013 |
| Gana Enterprises Ltd | Wholesale & retail | 2012 |
| Gana Reality Group Ltd | Wholesale & retail | 2025 |
| Gana Retail Ltd | Wholesale & retail | 2025 |
| Ganador Sports Worldwide Limited | Manufacturing | 2016 |
| Ganeaconstruct Limited | Construction | 2025 |
| Ganesh Makam Ltd | Information & communication | 2019 |
| Ganesh Utsav Committee London CIC | Other services | 2025 |
| Ganesha Cardiff Ltd | Real estate | 2017 |
| Ganesha Ltd | Professional & scientific | 2011 |
| Ganesha Property Ltd | Real estate | 2017 |
| Ganesha Social Ltd | Real estate | 2022 |
| Ganga Tech Limited | Information & communication | 2023 |
| Gangur Limited | Information & communication | 2016 |
| Gani Properties UK Ltd | Real estate | 2026 |
| Ganjshakar Ltd | Wholesale & retail | 2026 |
| Ganness House Ltd | Real estate | 2019 |
| Ganney Developments Ltd | Construction | 2025 |
| Ganpat Limited | Real estate | 2006 |
| Ganpati Group Ltd | Real estate | 2022 |
| Gants Hill Halal Meat Limited | Wholesale & retail | 2024 |
| Gants Hill Kebabish Ltd | Hospitality | 2025 |
| Gants Hill Travel Ltd | Administrative & support | 2018 |
| GAP Locum Services Ltd | Health & social care | 2020 |
| Gapped CC Ltd | Wholesale & retail | 2025 |
| Gapped Cycling CIC | Education | 2023 |
| Garage Guru Ltd | Wholesale & retail | 2018 |
| Gardens of Peace Muslim Cemetery | Other services | 2013 |
| Gardners Fresh Produce Limited | Hospitality | 2015 |
| Garg Financial Limited | Financial services | 2016 |
| Garg Homes Limited | Real estate | 2018 |
| Gari Tech Limited | Information & communication | 2016 |
| Garms Consulting UK Limited | Information & communication | 2019 |
| Garner Richardson Limited | Professional & scientific | 2009 |
| Garryfleetsolutions Ltd | Transport & logistics | 2025 |
| Garsdale Road Limited | Real estate | 2023 |
| Gartmore Limited | Wholesale & retail | 2018 |
| Garuz Ltd | Wholesale & retail | 2021 |
| Garvey Carpentry Limited | Construction | 2011 |
| Gary Leonard Ross Consulting Limited | Professional & scientific | 2020 |
| GAS & Elec Ltd | Manufacturing | 2015 |
| GAS and Heating Emergencies Ltd | Construction | 2026 |
| GAS Logistics Ltd | Administrative & support | 2026 |
| GAS on Air Conditioning and Heating Limited | Construction | 2026 |
| Gashi Construction Ltd | Construction | 2014 |
| Gasman & Partners Ltd | Construction | 2025 |
| Gasr STD Ltd | Information & communication | 2025 |
| Gasuna Technologies Ltd | Information & communication | 2024 |
| Gat+Co Limited | Information & communication | 2019 |
| Gate 7 New Care Solutions Ltd | Health & social care | 2024 |
| Gates Retail Limited | Wholesale & retail | 2023 |
| Gateway Building Consultancy Ltd | Real estate | 2025 |
| Gateway Chauffeurs Limited | Transport & logistics | 2025 |
| Gateway Housing Limited | Real estate | 2001 |
| Gatewaysecurity Limited | Information & communication | 2025 |
| Gathertag Ltd | Information & communication | 2025 |
| Gati Group Ltd | Real estate | 2023 |
| Gatwick Inn Hotel Ltd | Hospitality | 2017 |
| GAU Brothers Limited | Real estate | 2014 |
| Gaudete Limited | Wholesale & retail | 2023 |
| Gauka Ltd | Real estate | 2024 |
| Gauthnair Ltd | Real estate | 2024 |
| GAV Worldwide Limited | Other services | 2018 |
| Gaya in Art Limited | Arts & recreation | 2011 |
| GAZ One Ltd | Construction | 2025 |
| Gazillabyte UK Ltd | Information & communication | 2019 |
| GB Cargo Express Ltd | Wholesale & retail | 2021 |
| GB Contract Surveying Limited | Professional & scientific | 2022 |
| GB Driving School Ltd | Wholesale & retail | 2023 |
| GB Drylining Contractors Ltd | Construction | 2017 |
| GB Food Suppliers Ltd | Wholesale & retail | 2026 |
| GB Foods (Ilford) Ltd | Wholesale & retail | 1999 |
| GB Freight Forward Limited | Transport & logistics | 2024 |
| GB Fulfillment Ltd | Wholesale & retail | 2024 |
| GB Infinity Build UK Ltd | Construction | 2018 |
| GB Lofts Limited | Construction | 2012 |
| GB Property Ventures Limited | Real estate | 2007 |
| GB Track Limited | Wholesale & retail | 2015 |
| GB Wines Limited | Wholesale & retail | 2005 |
| GB2 Holdings Limited | Hospitality | 2022 |
| GBB Contractors Limited | Construction | 2018 |
| Gbcart Worldwide Ltd | Wholesale & retail | 2025 |