| G & H Sectional Tank Services Ltd | Manufacturing | 2017 |
| G & M Properties Wigan Limited | Real estate | 2016 |
| G & N Dental Laboratory Ltd | Manufacturing | 2005 |
| G Car Wash Ltd | Wholesale & retail | 2025 |
| G Hickman Landscapes Limited | Administrative & support | 2018 |
| G K a (1996) Ltd | Health & social care | 1996 |
| G M Pipelines Limited | Manufacturing | 2024 |
| G M Plastering & Properties Ltd | Construction | 2026 |
| G&B Direct Ltd | Wholesale & retail | 2018 |
| G&B Holiday Lets Ltd | Real estate | 2018 |
| G&C Catering Limited | Hospitality | 2025 |
| G&L Auto Services Ltd | Wholesale & retail | 2012 |
| G&M Freight Services Ltd | Transport & logistics | 2003 |
| G&M Heating Utilities Ltd | Manufacturing | 2010 |
| G&V Beauty Bar Ltd | Other services | 2025 |
| G-Com Networks UK Limited | Construction | 2005 |
| G. & B. (North West) Holdings Limited | Professional & scientific | 2006 |
| G. Andrews Engineering Site Services Limited | Construction | 2006 |
| G. Christall & Co. Ltd. | Construction | 1998 |
| G. Porteous Limited | Administrative & support | 2003 |
| G. W. Heaton (Plumbing) Limited | Construction | 1976 |
| G.A Golf Limited | Wholesale & retail | 2003 |
| G.A. Comms Limited | Professional & scientific | 2011 |
| G.A.C. Construction Limited | Construction | 2006 |
| G.A.R Global Limited | Wholesale & retail | 2024 |
| G.T.R. Motors ( North West ) Ltd | Wholesale & retail | 2018 |
| G.U.D. (Digital) Limited | Administrative & support | 2024 |
| G.W. Howell Ltd | Health & social care | 2015 |
| G2 Mastics Ltd | Construction | 2023 |
| G2S Limited | Extraterritorial | 2021 |
| G6 Built for Speed Ltd | Wholesale & retail | 2026 |
| Gabardine Bar Ltd | Hospitality | 2021 |
| GAC Interiors Limited | Construction | 2025 |
| Gadbury Property Limited | Real estate | 2009 |
| Gadgets Gear Pro Ltd | Wholesale & retail | 2021 |
| Gallery Falconi Ltd | Construction | 2025 |
| Gallimores Ltd | Hospitality | 2025 |
| Galloways Bakers Limited | Manufacturing | 1988 |
| Gally Electrical Services Limited | Construction | 2020 |
| Gama Energy Ltd | Professional & scientific | 2020 |
| Gamer Warrington Limited | Arts & recreation | 2023 |
| Games to GET Limited | Manufacturing | 2011 |
| Ganzheitlich Frei Ltd | Professional & scientific | 2022 |
| Gaps & Bridges CIC | Information & communication | 2021 |
| Garage Door Solutions (NW) Limited | Manufacturing | 2018 |
| Garaison Consulting Ltd | Professional & scientific | 2014 |
| Gardner Consulting (FE) Limited | Education | 2013 |
| Gareth Nelson Motorcycle Instructor Ltd | Education | 2024 |
| Garner and Lamb Limited | Construction | 2007 |
| Garner Haulage Ltd | Transport & logistics | 2009 |
| Garners Commercials Ltd | Transport & logistics | 2011 |
| Garswood Barbers Ltd | Other services | 2025 |
| Garswood Karate Limited | Arts & recreation | 2012 |
| Garswood Motor Company Limited | Wholesale & retail | 2026 |
| Garswood Park Resources Ltd | Construction | 2018 |
| Garswood Scaffolding Ltd | Construction | 2023 |
| Garswood United F.C. Limited | Arts & recreation | 1997 |
| Garton Fasteners Ltd | Information & communication | 2012 |
| Garton International Limited | Extraterritorial | 1991 |
| Garton Limited | Manufacturing | 2001 |
| Gary Foster Limited | Construction | 2008 |
| Gary Porter Limited | Construction | 2012 |
| Gary Pountain Limited | Transport & logistics | 2015 |
| GAS Fitters Limited | Construction | 2020 |
| GAS Heating Installation Services Ltd | Construction | 2023 |
| GAS Install Solutions Ltd | Construction | 2026 |
| Gasco Plumbing & Heating Limited | Construction | 2008 |
| Gask N Cask Ltd | Hospitality | 2020 |
| Gaskell Contracting Services Limited | Construction | 2002 |
| Gaskell Roofing Ltd | Construction | 2021 |
| Gate Farm Limited | Other services | 2015 |
| Gathurst Golf Club Limited | Arts & recreation | 1963 |
| Gathurst Station Inn Limited | Hospitality | 2020 |
| GB Builders (Wigan) Ltd | Construction | 2021 |
| GB Debt Solutions Ltd | Professional & scientific | 2011 |
| GBF (NW) Ltd | Agriculture & fishing | 2016 |
| GCH Interiors Limited | Construction | 2003 |
| GCH Property Limited | Real estate | 2017 |
| GCS Auto Solutions Ltd | Wholesale & retail | 2023 |
| GDA Law Limited | Professional & scientific | 2013 |
| Gdp(Nw) Limited | Arts & recreation | 2017 |
| GDR Driveways Limited | Construction | 2019 |
| Gdsteen Ltd | Information & communication | 2025 |
| GE Accountancy Ltd | Professional & scientific | 2019 |
| GE Health & Safety Ltd | Administrative & support | 2016 |
| Gearing UP (Wigan) Community Interest Company | Other services | 2016 |
| Geeky Monkey Group Ltd | Manufacturing | 2018 |
| Gelato House Ltd | Hospitality | 2018 |
| Gelato Royale Ltd | Hospitality | 2016 |
| Gelert Holdings Ltd | Real estate | 2024 |
| Gemechu Group Limited | Wholesale & retail | 2023 |
| Gems Bar Wigan Ltd | Hospitality | 2010 |
| Gemstone Store UK Ltd | Wholesale & retail | 2020 |
| Gem’S Beauty & Semipermanent Makeup Ltd | Other services | 2021 |
| Gendraw Limited | Information & communication | 2015 |
| General Mastic Asphalt Ltd | Construction | 2015 |
| Generation Hair Limited | Other services | 2016 |
| Genesis Properties (NW) Limited | Real estate | 2019 |
| Genesis Sports Ltd | Wholesale & retail | 2011 |
| Genesox Limited | Mining & quarrying | 2025 |