| Garratts Corporate Finance Limited | Financial services | 2004 |
| Garrison Court Management Company Limited | Households | 1997 |
| Garrison Management Company Limited | Households | 1992 |
| Garrisonn Ltd | Wholesale & retail | 2024 |
| Gary Haynes Construction Limited | Construction | 2025 |
| GAS Safety & Heating Solutions Birmingham Ltd | Construction | 2025 |
| GAS Solutions UK Group Ltd | Construction | 2025 |
| Gasha & Rozha Ltd | Health & social care | 2019 |
| Gaspers.Vintage.Shop Ltd | Wholesale & retail | 2024 |
| Gasplus Plumbing & Heating Services Ltd | Construction | 2020 |
| Gastronomic Kitchenware Ltd | Wholesale & retail | 2026 |
| Gateway (Wolves) Limited | Hospitality | 2025 |
| Gateway Estate Agents Ltd | Real estate | 2018 |
| Gateway Legal & Professional Services (U.K.) Limited | Hospitality | 2010 |
| Gateway of Hope Global Ministries | Other services | 2019 |
| Gateway to Independence Ltd | Health & social care | 2023 |
| Gauvin Tech Consultancy Ltd | Information & communication | 2023 |
| Gazam Holdings Ltd | Professional & scientific | 2025 |
| Gazette Newes 247 Limited | Information & communication | 2024 |
| GB & B Homes (Lettings) Limited | Real estate | 2021 |
| GB Amber Ltd | Wholesale & retail | 2017 |
| GB Concrete & Pump Ltd | Administrative & support | 2011 |
| GB Events & Entertainment UK Ltd | Arts & recreation | 2026 |
| GB Haulage Ltd | Transport & logistics | 2010 |
| GB Locum Recruitment Ltd | Health & social care | 2015 |
| GB Midlands Ltd | Real estate | 2026 |
| GB Plant & Civils Ltd | Administrative & support | 2023 |
| GB Plant & Sales Ltd | Administrative & support | 2023 |
| GB Safestep Supplies Ltd | Construction | 2024 |
| GB Uppal Limited | Real estate | 2014 |
| GB1 Transport Ltd | Transport & logistics | 2025 |
| Gbbs Steel Ltd | Wholesale & retail | 2024 |
| GBM Group Ltd | Real estate | 2022 |
| Gbpv Ltd | Construction | 2022 |
| GBR Designs Limited | Construction | 2025 |
| Gbsr Limited | Transport & logistics | 2023 |
| GC Car Hire Limited | Administrative & support | 2018 |
| GC Motorsports Ltd | Wholesale & retail | 2025 |
| GCA Khaira Limited | Real estate | 2020 |
| GCL Concreting Limited | Construction | 2024 |
| GCM Group Limited | Construction | 2018 |
| GCN Building Limited | Construction | 2025 |
| Gcpharma (Midlands) Ltd | Wholesale & retail | 2020 |
| GCR Capital Ltd | Construction | 2025 |
| GD Brothers Limited | Wholesale & retail | 2016 |
| GDJ Contracts Ltd | Construction | 2005 |
| GE 365 Logistics Ltd | Transport & logistics | 2023 |
| GE Brands Ltd | Wholesale & retail | 2023 |
| GE Starr Engineering Limited | Professional & scientific | 2024 |
| Ge-Projects Ltd | Manufacturing | 2025 |
| Gecko Programmes Limited | Professional & scientific | 2009 |
| GEE Convenience Store Ltd | Wholesale & retail | 2025 |
| Geega BAG Limited | Manufacturing | 2005 |
| Geek Analytics Limited | Information & communication | 2016 |
| Geek Axon Ltd | Transport & logistics | 2022 |
| Geek Shop Online Ltd | Wholesale & retail | 2017 |
| GEM Blinds Midlands Limited | Manufacturing | 2017 |
| GEM Global Limited | Wholesale & retail | 2018 |
| GEM Transport Ltd | Transport & logistics | 2026 |
| Gem's Beauty Limited | Other services | 2018 |
| Gemini Contractors Ltd | Construction | 2022 |
| Gemma Davies Limited | Other services | 2013 |
| Gemsi Ltd | Hospitality | 2024 |
| GEN Trading Ltd | Hospitality | 2025 |
| Gender Equality Matters Ltd | Health & social care | 2018 |
| Generation Hub CIC | Administrative & support | 2024 |
| Genesis Mide Limited | Wholesale & retail | 2024 |
| Genesis to Oblivion Ltd | Administrative & support | 2024 |
| Geni Tech Services Ltd | Information & communication | 2025 |
| Genius Digitizing Ltd | Professional & scientific | 2025 |
| Genius Facades Ltd | Manufacturing | 2013 |
| Genius Logistics Ltd | Transport & logistics | 2024 |
| Genko Engineering Limited | Construction | 2020 |
| Gennanest Ltd | Real estate | 2021 |
| Genomedix Ltd | Health & social care | 2024 |
| Gentlemen's Academy Ltd | Real estate | 2023 |
| Gentstyle UK Ltd | Wholesale & retail | 2025 |
| Genuine Euro Parts Ltd | Wholesale & retail | 2021 |
| Genuine Interiors Limited | Real estate | 2008 |
| Genuine Property Ltd | Extraterritorial | 2014 |
| Genweld Supplies Limited | Extraterritorial | 1978 |
| GEOANADOM2019 Ltd | Transport & logistics | 2019 |
| Geobear Infrastructure Ltd | Construction | 2017 |
| Geobear Ltd | Construction | 2017 |
| Geobear Residential Ltd | Construction | 2017 |
| Geobraham Support Company Ltd | Health & social care | 2022 |
| Geocare Services Limited | Administrative & support | 2020 |
| Geod Motors Ltd | Construction | 2024 |
| Geoff Wilkes Financial Services Limited | Financial services | 2007 |
| George Law Plant Limited | Construction | 1978 |
| George Perry (Wholesale Fruit & Vegetables) Limited | Wholesale & retail | 1975 |
| George Price Ltd | Manufacturing | 2024 |
| George Wilson (Turf Accountants) Limited | Real estate | 1956 |
| George&Gaby Limited | Transport & logistics | 2017 |
| Georgies Ltd | Other services | 2026 |
| Geoseis Consultant Limited | Education | 2016 |
| Geosoft Care Limited | Information & communication | 2024 |
| Geothel Properties Ltd | Real estate | 2019 |
| GEP Building Energy Services Ltd | Manufacturing | 2001 |
| Gerbrook (Holdings) Limited | Professional & scientific | 1988 |