| Go Eco Homes Limited | Construction | 2010 |
| Go Hire Ltd | Administrative & support | 2001 |
| Goblin Designs Ltd | Professional & scientific | 2024 |
| Goblin Medical Limited | Health & social care | 2023 |
| Gocom Synergy Ltd | Administrative & support | 2026 |
| Godfrey Mansell & Co LLP | | 2007 |
| Godfrey Mansell & Co. Limited | Professional & scientific | 1988 |
| Gold Star 360 Limited | Information & communication | 2017 |
| GOLD2U Ltd | Wholesale & retail | 2025 |
| Golden & Cutz Barber Ltd | Other services | 2023 |
| Golden Glow Studios Ltd | Other services | 2025 |
| Golden Key Assets Limited | Real estate | 2024 |
| Goldmount Properties Limited | Professional & scientific | 1999 |
| Goody and Grant Narrative Works Limited | Arts & recreation | 2024 |
| Gore Groundworks Limited | Administrative & support | 2021 |
| Gould Singleton Architects Limited | Professional & scientific | 1995 |
| Gould Singleton Limited | Professional & scientific | 2003 |
| Govsell Services Limited | Professional & scientific | 2021 |
| GPM Steel & Building Consulting Limited | Manufacturing | 2012 |
| Grabloaders Groundwork Limited | Construction | 2006 |
| Grainge and Hodder Limited | Manufacturing | 1977 |
| Grainger & Daniels Structural Engineering Ltd | Professional & scientific | 2026 |
| Grainger and Daniels Ltd | Professional & scientific | 2022 |
| Graingers Lane & Station Street Cradley Heath Management Company Limited | Extraterritorial | 2008 |
| Grandie Developments Ltd | Construction | 2015 |
| Grandie Estates Ltd | Real estate | 2024 |
| Grandie Investments Ltd | Real estate | 2017 |
| Granemore Civil Engineering Limited | Construction | 2019 |
| Granemore Plant Hire Limited | Administrative & support | 2019 |
| Granemore Recycling Limited | Construction | 2019 |
| Gratitude Developments Limited | Administrative & support | 2023 |
| Grays Cars MOT Ltd | Wholesale & retail | 2021 |
| GRD Financial Planning Limited | Professional & scientific | 2022 |
| Great British Cement Ltd | Wholesale & retail | 2017 |
| Green Ghana UK Limited | Agriculture & fishing | 2023 |
| Green Lane Storage Ltd | Transport & logistics | 2023 |
| Green Skip Hire Ltd | Water & waste | 2023 |
| Greenhill Enterprises Limited | Information & communication | 1987 |
| Greg Jackson Plumbing and Heating Services Limited | Construction | 2017 |
| Greswolde Consulting Ltd. | Professional & scientific | 2003 |
| Gretco Limited | Construction | 2012 |
| Grewal Estates Ltd | Real estate | 2017 |
| Griffin Centre Ltd | Wholesale & retail | 2025 |
| Group Gear Holdings Limited | Financial services | 2024 |
| Group Gear Limited | Wholesale & retail | 2011 |
| Grovenet Communications Limited | Extraterritorial | 2020 |
| Grovenet Limited | Information & communication | 2000 |
| Grow Together UK Ltd | Professional & scientific | 2021 |
| Growing Beautifully Ltd | Other services | 2024 |
| Growth & Value Limited | Wholesale & retail | 2017 |
| GS & WS Developments Limited | Professional & scientific | 2018 |
| GS Roofing Specialists (WM) Limited | Construction | 2024 |
| GS Wheels Ltd | Transport & logistics | 2026 |
| GSK Direct Limited | Wholesale & retail | 2015 |
| GSS (Mids) Ltd | Construction | 2018 |
| GT 2015 Holdings Limited | Real estate | 2015 |
| GTM Right Limited | Information & communication | 2026 |
| GTS Communications (UK) Limited | Construction | 2000 |
| Guide for Academic Services Limited | Education | 2019 |
| Guider International Ltd | Information & communication | 2015 |
| Guru Midland Motors Limited | Wholesale & retail | 2018 |
| Guruveen Birmingham Limited | Wholesale & retail | 2019 |
| GWR Services Ltd | Construction | 2022 |
| Gym Capsule Limited | Arts & recreation | 2024 |
| Gym Clothing Co. Limited | Wholesale & retail | 2017 |
| Gym Clothing Company Limited | Wholesale & retail | 2017 |
| Gym Geek Limited | Arts & recreation | 2015 |
| H and R Engineering Limited | Construction | 2018 |
| H H Electronics Limited | Manufacturing | 1984 |
| H Hamid Limited | Real estate | 2023 |
| H S Automotive Solutions Ltd | Professional & scientific | 2017 |
| H&G Roofing Ltd | Construction | 2022 |
| H.A.D.E Transport Ltd | Transport & logistics | 2023 |
| H.M.I (Midlands) Ltd | Wholesale & retail | 2024 |
| H3J (UK) Ltd | Professional & scientific | 2023 |
| H3J Property Ltd | Real estate | 2024 |
| H7 Property Group Ltd | Real estate | 2022 |
| Habitora Limited | Real estate | 2024 |
| Haden Hill Carpentry and Maintenance Limited | Construction | 2026 |
| Haden Technology Limited | Information & communication | 2023 |
| Hadzor-Davies Residential Limited | Wholesale & retail | 1991 |
| Hagley Carpets & Flooring Ltd | Construction | 2025 |
| Hagley Cooling Solutions Ltd | Construction | 2021 |
| Hagley Hill Limited | Construction | 2007 |
| Hagley Stoves Ltd | Wholesale & retail | 2025 |
| Hair Savvy Studio Limited | Other services | 2021 |
| Hair X Ltd | Extraterritorial | 2024 |
| Halas Homes | Health & social care | 1988 |
| Halas Property Management Limited | Real estate | 2026 |
| Halcyon Contemporary Ltd | Construction | 2016 |
| Halesowen Apostolic Church | Other services | 2019 |
| Halesowen Auction Rooms Limited | Extraterritorial | 2020 |
| Halesowen Autos Ltd | Wholesale & retail | 2015 |
| Halesowen BID Limited | Other services | 2017 |
| Halesowen BSW Limited | Hospitality | 2022 |
| Halesowen Car Wash Limited | Manufacturing | 2025 |
| Halesowen Caravan and Motor Home Spares Limited | Other services | 2018 |
| Halesowen College Enterprises Limited | Wholesale & retail | 1993 |
| Halesowen Cricket Club Limited | Arts & recreation | 2014 |
| Halesowen Development Company Ltd | Construction | 2023 |