| Gadirova Twins Limited | Arts & recreation | 2022 |
| GAG414 Limited | Real estate | 2016 |
| GAH Property Services Limited | Construction | 2023 |
| Gain Green Gardens Ltd | Administrative & support | 2023 |
| Gajas Ltd | Hospitality | 2020 |
| Galaxy Personnel Limited | Administrative & support | 2000 |
| Galera Ltd | Professional & scientific | 2022 |
| Gallagher Car & Van Rentals Limited | Administrative & support | 1983 |
| Galle Document Management Limited | Administrative & support | 2015 |
| Galleon Wealth (IFA) Ltd | Professional & scientific | 2007 |
| Gallico Ltd | Agriculture & fishing | 2025 |
| Galliform Ltd | Wholesale & retail | 2009 |
| Galuu Ltd | Transport & logistics | 2025 |
| Galwaygirl Properties Limited | Real estate | 2020 |
| Gamal Yafai Limited | Arts & recreation | 2012 |
| Gambey Limited | Transport & logistics | 2018 |
| Game Anglia C.I.C. | Administrative & support | 2019 |
| Game Works Creative Ltd | Manufacturing | 2019 |
| Gamechanger 20 Limited | Arts & recreation | 2020 |
| Gamechanger Holdings Ltd | Financial services | 2026 |
| Gamfam | Health & social care | 2019 |
| Gamie Property Ltd | Real estate | 2024 |
| Gamusoft LP | | 2024 |
| Gamvizex Ltd | Wholesale & retail | 2024 |
| Gant & Co Accountancy Ltd | Professional & scientific | 2015 |
| Gants Hill VA Ltd | Hospitality | 2018 |
| Gants Meadow Management Company Limited | Households | 2021 |
| Gar'Wood' Projects Ltd | Manufacturing | 2025 |
| Gara Sakal Limited | Hospitality | 2024 |
| Garage Developments Ltd | Construction | 2025 |
| Garam Masala Limited | Hospitality | 2022 |
| Garantia Plus Ltd | Information & communication | 2025 |
| Garden Choices Limited | Administrative & support | 2007 |
| Gardeners Close Residents Association Limited | Households | 2005 |
| Garland UK Limited | Professional & scientific | 2006 |
| Garms Clothing Limited | Wholesale & retail | 2024 |
| Garnham Glass Ltd | Manufacturing | 2016 |
| Garrard Electrical Ltd | Construction | 2015 |
| Garrard RS Ltd | Construction | 2023 |
| Garratt & Pearson (Property) Ltd | Real estate | 2024 |
| Garratt & Pearson Plumbing and Heating Ltd | Other services | 2020 |
| Garrick Design Flooring Ltd | Wholesale & retail | 2020 |
| Garrick Way Limited | Wholesale & retail | 2019 |
| Garrick Way Premier Ltd | Wholesale & retail | 2025 |
| Garrick Way Store Ltd | Wholesale & retail | 2025 |
| Garrod Enterprises Limited | Wholesale & retail | 2019 |
| Gary Magor Holdings Limited | Financial services | 2025 |
| Gary Pro Renovation Ltd | Construction | 2024 |
| Gary Staff Martial Arts Academy Limited | Arts & recreation | 2008 |
| GAS Commercial Ltd | Professional & scientific | 2019 |
| GAS Fired Products(U.K.)Limited | Manufacturing | 1964 |
| GAS Tune Ltd | Energy | 2020 |
| GAS UK Network Limited | Wholesale & retail | 2025 |
| Gascoynes Group Limited | Financial services | 2024 |
| Gasspec Plumbing & Heating EA Ltd | Construction | 2023 |
| Gastro Food E-Services Limited | Hospitality | 2021 |
| Gatehouse Property Improvements Ltd | Construction | 2013 |
| Gateway Accommodation Solutions Limited | Hospitality | 2018 |
| Gateway Logistics Ltd | Transport & logistics | 2019 |
| Gateway Port Logistics Ltd | Transport & logistics | 2022 |
| Gateway Property Care Solutions Ltd | Administrative & support | 2024 |
| GATEWAY14 Limited | Construction | 2017 |
| GAY Times Limited | Information & communication | 2017 |
| Gazals Beauty Ltd | Other services | 2019 |
| GB Customs Clearance Ipswich Limited | Transport & logistics | 2024 |
| GB Design & Build Solutions Limited | Construction | 2025 |
| GB Inns Limited | Other services | 2019 |
| GB Road Art Limited | Administrative & support | 2007 |
| GBM Suffolk Ltd | Construction | 2019 |
| GBN Link Ltd | Transport & logistics | 2019 |
| GBP Education Group Limited | Education | 2024 |
| GBS Eastern Limited | Financial services | 2022 |
| Gbspeed Ltd | Wholesale & retail | 2022 |
| GC 20 Property Ltd | Financial services | 2023 |
| GC Fabrications Ltd | Manufacturing | 2012 |
| GC Transport Ltd | Transport & logistics | 2016 |
| GC Tyres Limited | Wholesale & retail | 2019 |
| Gcal Ltd | Real estate | 2013 |
| GCE Builders Ltd | Construction | 2023 |
| GCM Couriers Ltd | Administrative & support | 2022 |
| GCS Freight Group Limited | Financial services | 2024 |
| GCS Holdings (Felixstowe) Limited | Financial services | 2021 |
| GD Refinishing Ltd | Wholesale & retail | 2026 |
| Gd-Staircases Ltd | Wholesale & retail | 2012 |
| GDB Portfolio Limited | Real estate | 2026 |
| GDB Road Freight Ltd | Transport & logistics | 2025 |
| GDC Build MID Suffolk Ltd | Construction | 2022 |
| GDL Logistics Ltd | Transport & logistics | 2018 |
| GDS Developments Ltd | Construction | 2019 |
| GDS Europe Limited | Administrative & support | 2015 |
| GDS Services Suffolk Limited | Professional & scientific | 2018 |
| GDW Projects Ltd | Wholesale & retail | 2018 |
| GDY Properties Limited | Real estate | 2017 |
| GDY Systems Ltd. | Professional & scientific | 2011 |
| GE Property Ltd | Real estate | 2021 |
| Gear One Ltd | Wholesale & retail | 2025 |
| Gearapt Ltd | Wholesale & retail | 2024 |
| Gearspark Dynamics Ltd | Extraterritorial | 2025 |
| Geboorah Ltd | Wholesale & retail | 2021 |
| Gecko Theatre | Arts & recreation | 2004 |