| G a Pratt & SON Limited | Construction | 2016 |
| G Allsopp Services Ltd | Professional & scientific | 2015 |
| G Barber Shop Ltd | Other services | 2025 |
| G Green Holdings Ltd | Wholesale & retail | 2025 |
| G I Properties (Nuneaton) Limited | Real estate | 2017 |
| G K Electrics Cleaning Equipment Limited | Manufacturing | 2003 |
| G Walker Building Contractors Limited | Construction | 2010 |
| G Wallis Property Services Limited | Other services | 2012 |
| G&B Brickwork Contractors Ltd | Construction | 2017 |
| G. Albanese Enterprise Limited | Professional & scientific | 2017 |
| G. Mcfadden (Civil Engineers) Limited | Construction | 2000 |
| G. Mcfadden Plant Hire Limited | Administrative & support | 1997 |
| G.A.P.S. Services Limited | Manufacturing | 1999 |
| G.C. Hunt Ltd | Transport & logistics | 2024 |
| G.Chahal Limited | Transport & logistics | 2016 |
| G.R. Sclater Building Co Limited | Construction | 1998 |
| G.S. Panel Beating Limited | Manufacturing | 2010 |
| G4-ENERGY Limited | Manufacturing | 2013 |
| G4NES Food Limited | Hospitality | 2020 |
| GA Spedition Ltd | Transport & logistics | 2019 |
| Gaar Holdings Ltd | Financial services | 2024 |
| Gabicos Trans Ltd | Transport & logistics | 2021 |
| Galaxy A2Z Limited | Health & social care | 2023 |
| Galcian (Arbroath) Limited | Construction | 2025 |
| Galcian (Hanley) Limited | Construction | 2025 |
| Galcian (West Bromwich) Limited | Construction | 2025 |
| Galcian Limited | Construction | 2023 |
| Galley Common Self Storage Limited | Transport & logistics | 2014 |
| Gamma Blue Limited | Wholesale & retail | 2016 |
| Gandaki Catering Limited | Hospitality | 2023 |
| Gant & Winters Limited | Other services | 2003 |
| Gareth Williams Parcels Limited | Transport & logistics | 2004 |
| Gargar Ltd | Other services | 2019 |
| Gargar Nuneaton Limited | Other services | 2023 |
| Garnet Real Estate Limited | Real estate | 2023 |
| Garry Smith Limited | Administrative & support | 2008 |
| Gary Senna Ltd | Wholesale & retail | 2023 |
| GAS Emergency Service Ltd | Construction | 2024 |
| GAS Heating & Plumbing Services Ltd | Manufacturing | 2021 |
| GAS Sense Ltd | Construction | 2020 |
| Gasplan Services Ltd | Manufacturing | 2018 |
| Gate House Self Storage (Nuneaton) Limited | Other services | 2024 |
| Gateway Hypnotherapy Ltd | Health & social care | 2025 |
| Gautam Services Ltd | Wholesale & retail | 2025 |
| Gavin Brunton Ltd | Information & communication | 2021 |
| GB Aesthetics Studio Ltd | Health & social care | 2025 |
| GB Creative Interiors Limited | Construction | 2012 |
| GB Wall Property Management Ltd | Households | 2018 |
| Gbcam Limited | Professional & scientific | 2011 |
| GBR13 Ltd | Wholesale & retail | 2020 |
| Gbro Limited | Wholesale & retail | 2017 |
| GC EOT Ltd | Financial services | 2024 |
| GCS Thermal Limited | Other services | 2014 |
| GD Railcomm Ltd | Professional & scientific | 2024 |
| GDS Associates Ltd | Professional & scientific | 2025 |
| GDS Sound & Light Limited | Wholesale & retail | 2021 |
| GEB Trailers and Conversions Ltd | Manufacturing | 2020 |
| General Service & Repair Ltd | Wholesale & retail | 2014 |
| Genesis One Care Services Limited | Health & social care | 2025 |
| Genial Eduportal Consultancy Limited | Education | 2024 |
| Gent Barber Ltd | Other services | 2026 |
| Gentle M J Limited | Wholesale & retail | 2019 |
| Geoana Spedition Ltd | Transport & logistics | 2019 |
| Geobuild Services Ltd | Construction | 2026 |
| Geoff Cowley & Co Limited | Professional & scientific | 2005 |
| Geoff Thompson Limited | Information & communication | 1999 |
| George 21 Ltd | Transport & logistics | 2021 |
| George Daniel Trading Ltd | Transport & logistics | 2016 |
| George Plumbing Ltd | Construction | 2018 |
| George Stew Limited | Construction | 1959 |
| George Sykes (Properties) Limited | Extraterritorial | 1973 |
| George Sykes Holdings Limited | Financial services | 2008 |
| George Sykes Property Group Limited | Financial services | 2026 |
| George Sykes Property Holdings Limited | Financial services | 2023 |
| Germanic Spares Ltd | Administrative & support | 2016 |
| GET SET Consulting Limited | Information & communication | 2023 |
| Getix Ltd | Transport & logistics | 2018 |
| GF Solutions Limited | Transport & logistics | 2010 |
| Gfgi Limited | Real estate | 2025 |
| Gforce Corporation Ltd | Wholesale & retail | 2025 |
| GG Gourmet Catering Ltd | Hospitality | 2021 |
| Ghale Family Ltd | Real estate | 2024 |
| Ghale Limited | Real estate | 2023 |
| GHC Bars Limited | Real estate | 2008 |
| GHW Carlton Ltd | Hospitality | 2011 |
| Giant Corporate Holdings Limited | Financial services | 2020 |
| Giant Crushing Limited | Manufacturing | 2006 |
| Gibsons Classics Ltd | Wholesale & retail | 2016 |
| Gigs Live UK Limited | Arts & recreation | 2022 |
| Gilbert & Associates Ltd | Professional & scientific | 2024 |
| Gilgen Financial Limited | Professional & scientific | 2012 |
| Gill Auto Parts Ltd | Wholesale & retail | 2023 |
| Gillett Surfacing Ltd | Construction | 2017 |
| GIO International Ltd | Wholesale & retail | 2020 |
| Girlsmouth Limited | Information & communication | 2018 |
| Give Mortgages Limited | Financial services | 2019 |
| Gkej Consultants Limited | Professional & scientific | 2017 |
| GLA Properties Limited | Real estate | 2026 |
| Glam Factory Ltd | Other services | 2019 |
| Glass Garden Rooms Limited | Construction | 2024 |