| Goodwin and Goodwin 1 Limited | Real estate | 2017 |
| Goodwin Quality Services Ltd | Professional & scientific | 2026 |
| Goodwin Tanks Limited | Construction | 1983 |
| Goodwins Derby Limited | Professional & scientific | 2004 |
| Gorac Enterprise Limited | Health & social care | 2021 |
| Goran's Auto & Car Sales Ltd | Other services | 2024 |
| Gordon Ellis & Co. | Manufacturing | 1928 |
| Gordon Ellis Group Limited | Extraterritorial | 2005 |
| Gordon Monaghan Limited | Financial services | 2021 |
| Gordon Mosley Electrical Ltd | Construction | 2006 |
| Gordon Thomas Property Ltd | Real estate | 2024 |
| Gorilla Club Franchise Limited | Administrative & support | 2025 |
| Gorilla Club Holdings Ltd | Financial services | 2024 |
| Gorilla Hair Repair Club Ltd | Other services | 2024 |
| Gorkem Limited | Hospitality | 2025 |
| Goro Investment Limited | Real estate | 2022 |
| Goru Builders Limited | Construction | 2012 |
| Goshen Accountancy Ltd | Professional & scientific | 2017 |
| Gosling Services Limited | Professional & scientific | 2020 |
| Gotrueelec Ltd | Wholesale & retail | 2025 |
| Goulding Electrical & Property Services Ltd | Construction | 2019 |
| Gourmegg Ltd | Manufacturing | 2017 |
| Gourmet Guilt LM Ltd | Hospitality | 2025 |
| Gowara Courier Ltd | Transport & logistics | 2024 |
| Gowara Fast Food Ltd | Hospitality | 2024 |
| Gowara Pizza Limited | Hospitality | 2024 |
| Gozmat Ltd | Transport & logistics | 2025 |
| Gozzard Services Limited | Manufacturing | 2018 |
| GP Moto Sebek Ltd | Wholesale & retail | 2025 |
| GP Window Services Limited | Construction | 2007 |
| GPC Management Limited | Households | 1997 |
| GPD Driver Training Ltd | Education | 2024 |
| GPE Estates Ltd | Real estate | 2015 |
| Gpugear Limited | Wholesale & retail | 2025 |
| GPZ Limited | Manufacturing | 2011 |
| Grab & Go Alfresco Ltd | Hospitality | 2018 |
| Grab Assist Ltd | Transport & logistics | 2025 |
| Grace and Glory Midland Ltd | Administrative & support | 2024 |
| Grace Construction and Management Ltd | Construction | 2017 |
| Grace Consultancy Services Limited | Professional & scientific | 2001 |
| Grace for the Next Generation Limited | Education | 2007 |
| Grace Ventures Ltd | Construction | 2024 |
| Grace-Leyland Education Limited | Education | 2010 |
| Gracey Collectibles & Moore Ltd | Other services | 2026 |
| Gracie Barra Derby Ltd | Education | 2020 |
| Grafters Construction (Midlands) Limited | Construction | 2020 |
| Graham Bell (Holdings) Limited | Financial services | 2003 |
| Graham Bell Limited | Wholesale & retail | 1999 |
| Graham J Gough Limited | Construction | 2003 |
| Graham Markwell Associates Limited | Professional & scientific | 2003 |
| Graham Medcalf Heating and Plumbing Limited | Construction | 2013 |
| Graham White Haulage Limited | Transport & logistics | 2010 |
| Gram Consultancy Services Limited | Professional & scientific | 2022 |
| Gramms Limited | Information & communication | 2003 |
| Grand Designs Midlands Ltd | Construction | 2024 |
| Grand Healthcare Solutions Ltd | Health & social care | 2020 |
| Grander Designs Ltd | Real estate | 2019 |
| Grandeur Flowers Ltd | Wholesale & retail | 2020 |
| Grange Cars and Commercials Limited | Wholesale & retail | 2012 |
| Grange Environmental Services Limited | Water & waste | 2023 |
| Grange Law Limited | Professional & scientific | 2021 |
| Grange Park Homes LLP | | 2011 |
| Grangewood Caravan Park Limited | Hospitality | 2018 |
| Grangewood Fencing Supplies Limited | Wholesale & retail | 2002 |
| Grangewood Insulation Services Ltd | Construction | 1988 |
| Granite City Ltd | Real estate | 2022 |
| Granite City Restaurants Limited | Hospitality | 2023 |
| Granite Homes Limited | Real estate | 2014 |
| Granite Property Holdings Ltd | Real estate | 2018 |
| Granite Sentral Limited | Real estate | 2024 |
| Granmore Flat Management Limited | Households | 1991 |
| Grant and Donnelly Building Services Limited | Construction | 2019 |
| Grant Charles Financial Planning Ltd | Financial services | 2024 |
| Grant Estate Solutions Ltd | Real estate | 2025 |
| Grantham Partners Limited | Real estate | 2019 |
| Graphic Worx Limited | Professional & scientific | 2019 |
| Grassroots Tournaments Ltd | Arts & recreation | 2023 |
| Gratitude RS6 Ltd | Wholesale & retail | 2025 |
| Gratton Construction Limited | Construction | 2022 |
| Gratton Group Limited | Professional & scientific | 2022 |
| Gratton Properties Limited | Real estate | 2013 |
| Grattons Automotive Ltd | Wholesale & retail | 2024 |
| Grau Engineer Ltd | Professional & scientific | 2017 |
| Graves Fold Management Company Limited | Households | 2018 |
| Gravity Digital Ltd | Professional & scientific | 2014 |
| Gravity Motorsport Limited | Wholesale & retail | 2026 |
| Gray's Building Services Ltd | Construction | 2016 |
| Gray's Interiors & Renovations Limited | Professional & scientific | 2008 |
| Gray's Workshop Limited | Wholesale & retail | 2012 |
| Graylog UK Limited | Professional & scientific | 2021 |
| Graysome Limited | Financial services | 2024 |
| Grayson Shopfitters Ltd | Construction | 2022 |
| Grazie Ltd | Hospitality | 2023 |
| GRC Holdings Ltd | Real estate | 2025 |
| GRD Haulage Ltd | Transport & logistics | 2025 |
| GRD Transport Service Limited | Transport & logistics | 2025 |
| Great British Finance Limited | Financial services | 1996 |
| Great Mill Properties Limited | Real estate | 2017 |
| Great Northern Classics Heritage Skills Centre Community Interest Company | Wholesale & retail | 2022 |
| Great Northern Classics Limited | Wholesale & retail | 2018 |