| Greenhazel Ltd | Information & communication | 2023 |
| Greenkote Metal Finish Limited | Manufacturing | 2002 |
| Greenlight Sourcing Ltd | Wholesale & retail | 2024 |
| Greenstarmedics Ltd | Health & social care | 2023 |
| Greenwave Vision Ltd | Information & communication | 2025 |
| Greenwood's Garden Service Ltd | Arts & recreation | 2025 |
| Greg Purdie Golf Ltd | Wholesale & retail | 2024 |
| Gregory King Personal Training Ltd | Arts & recreation | 2015 |
| Gresford and Pandy Sport and Leisure Limited | Arts & recreation | 2011 |
| Gresford Colliery Sports and Social Club Limited | Hospitality | 2011 |
| Gresford Estates Limited | Real estate | 2026 |
| Gresford Eyecare LLP | | 2022 |
| Gresford Pastures Ltd | Agriculture & fishing | 2025 |
| Gresford Skin & Laser Clinic Limited | Other services | 2020 |
| Grewal&Sons Ltd | Wholesale & retail | 2024 |
| Grey Group Limited | Wholesale & retail | 2021 |
| Greystones' Residents Management Company Limited | Households | 1996 |
| Griden Ltd | Construction | 2025 |
| Gridline Electrical Solutions Limited | Manufacturing | 2026 |
| Griffin Flight Limited | Transport & logistics | 2019 |
| Griffinstor Limited | Financial services | 2014 |
| Griffith-Jones Associates Ltd | Professional & scientific | 2025 |
| Griffith-Jones IT Limited | Information & communication | 2005 |
| Griffiths Bros (WXM) Limited | Construction | 2002 |
| Grim Productions Ltd | Information & communication | 2025 |
| GRL GAS Limited | Construction | 2022 |
| Groco 404 Ltd | Financial services | 2020 |
| Grosvenor Aptec Limited | Information & communication | 1992 |
| Grosvenor Comms Limited | Other services | 2007 |
| Grosvenor Doors Limited | Manufacturing | 2012 |
| Grosvenor Living Limited | Construction | 2008 |
| Grosvenor Medical Ltd | Health & social care | 2012 |
| Grosvenor Property Ltd | Real estate | 2021 |
| Grosvenor ST Development Limited | Real estate | 2018 |
| Grosvenor Street Investments Limited | Real estate | 2015 |
| Groundsolve Holdings Ltd | Professional & scientific | 2021 |
| Groundwork & Leisure Services Ltd | Construction | 2008 |
| Groundwork North Wales | Professional & scientific | 1991 |
| Grove Mews Wrexham Management Company Ltd | Administrative & support | 2015 |
| Grove Road Surgery (Wallasey) Limited | Health & social care | 2016 |
| Growing Health Community Garden Nantwich CIC | Health & social care | 2021 |
| GROWTH50 Ltd | Professional & scientific | 2015 |
| GRW Projects Limited | Construction | 2025 |
| Grwp Rheino Ltd | Transport & logistics | 2025 |
| GSH Media Limited | Administrative & support | 2019 |
| GSK Clothing Ltd | Wholesale & retail | 2025 |
| GSM Construction (NW) Limited | Real estate | 2025 |
| Gspot Tuning and Mods Ltd | Professional & scientific | 2026 |
| GT Construction (NW) Ltd | Construction | 2010 |
| Gtjs Farms Ltd | Agriculture & fishing | 2024 |
| Guang Yuan Catering Supply Ltd | Wholesale & retail | 2026 |
| Gumanti Ltd | Wholesale & retail | 2025 |
| Gurpakh Limited | Hospitality | 2026 |
| Gusto Commercial Ltd | Wholesale & retail | 2024 |
| GUY Walmsley Limited | Professional & scientific | 2012 |
| GVP Compliance Ltd | Professional & scientific | 2022 |
| GW Traffic Data Services Ltd | Professional & scientific | 2019 |
| Gwalia Retreats CIC | Health & social care | 2024 |
| Gwersyllt FC Ltd | Education | 2026 |
| Gwersyllt Zilan Takeaway Ltd | Hospitality | 2025 |
| Gwesty Wrecsam Limited | Hospitality | 2018 |
| GWG Catering Ltd | Hospitality | 2022 |
| Gwilym Parry & SON Limited | Construction | 2003 |
| Gym Demon Ltd | Extraterritorial | 2025 |
| Gyrn DDU Campsite Limited | Hospitality | 2025 |
| H & H Corporation Ltd | Construction | 1996 |
| H & J Light Haulage Ltd | Transport & logistics | 2025 |
| H & L Maintenance Limited | Construction | 2012 |
| H & R Signalling Ltd | Construction | 2013 |
| H Crouch Services Ltd | Construction | 2026 |
| H D Davies Electrical Ltd | Construction | 2024 |
| H K Motors (Wales) Limited | Wholesale & retail | 2005 |
| H S Autocare Ltd | Wholesale & retail | 2024 |
| H&C Lettings Ltd | Real estate | 2020 |
| H&D Plastering Ltd | Construction | 2019 |
| H&H Williams Property Limited | Real estate | 2023 |
| H-Pack Logistics & Distribution Ltd | Transport & logistics | 2017 |
| H-Pack Packaging UK Ltd | Manufacturing | 2016 |
| H-Pack Paper & Board Manufacturing Ltd | Manufacturing | 2016 |
| H. J. Patel Limited | Health & social care | 2013 |
| Habilis Consulting Limited | Professional & scientific | 2022 |
| Habitus Education Training Services Limited | Education | 2023 |
| Habitus Holdings GB Limited | Education | 2022 |
| Hacis Chipodee Limited | Hospitality | 2026 |
| Hadlow Edwards Paraplanning Solutions Ltd | Financial services | 2021 |
| Hadlow Edwards Wealth Management Limited | Financial services | 2020 |
| Hafan Fach Property Ltd | Real estate | 2024 |
| Hafod Financial Solutions Limited | Financial services | 2013 |
| Hafod LAS Ltd | Hospitality | 2024 |
| Hafod Management (Wrexham) Limited | Professional & scientific | 2024 |
| Hafren Dyfrdwy Cyfyngedig | Water & waste | 1998 |
| Haggis & Hotpot PUB Co. Limited | Hospitality | 2016 |
| Haiku Consulting Limited | Professional & scientific | 2016 |
| Hair by NIA Limited | Other services | 2014 |
| Hair Creations by Rachel Prince Limited | Other services | 2023 |
| Hair First Limited | Other services | 2011 |
| Hair Gift World and Accessories CIC | Other services | 2026 |
| Hair Kandy by Chelsea Limited | Other services | 2015 |
| Halcolor Ltd | Wholesale & retail | 2025 |
| Haleo Construction Ltd | Construction | 2024 |