| Griffiths Ventures Limited | Leighton Buzzard | 2015 |
| Grigoriev Finance Limited | London | 2007 |
| Grimbledog Holdings Ltd | London | 2023 |
| Grimlock Ltd | Kirkliston | 2017 |
| Grimm Bach Top K.G Ltd | Cambridge | 2019 |
| Grimmett & Timms Limited | Sutton Coldfield | 1935 |
| Grimsby Carpet Warehouse Ltd | Grimsby | 2018 |
| Grimsby Haddock Ltd | London | 2018 |
| Grimshaw Estates Limited | Darwen | 2019 |
| Grind and Gears Ltd | Hawick | 2025 |
| Grindberry Ltd | Salford | 2013 |
| Grindco 453 Limited | Harrogate | 2004 |
| Grindley Gardens 1967 Limited | Croydon | 2014 |
| Grindlyn Limited | Neasden London | 1989 |
| Grindsbrook Limited | Telford | 2010 |
| Grindz Beanz Limited | Milton Keynes | 2014 |
| Grinnall Limited | Brierley Hill | 2007 |
| Grinsells Building Contractors Ltd | Walsall | 2021 |
| Grip Table Tennis Ltd | London | 2017 |
| Gripfit Ltd | Peterborough | 2024 |
| Griston Land Company Limited | Norwich | 2013 |
| Grit Military Gym Ltd | Huddersfield | 2022 |
| Grizzly River Limited | Looe | 2020 |
| Grizzly Strings Limited | Birmingham | 2017 |
| Grizzly Waves Ltd | London | 2024 |
| GRL Plumbing and Services Ltd | Billingshurst | 2022 |
| Grmm Limited | Stockport | 2008 |
| GRO Accountants Limited | Lowestoft | 2025 |
| Gro-Well Feeds Limited | Melksham | 2005 |
| Grocery OFF Licence Ltd | London | 2019 |
| Groco 2023 Limited | Oldham | 2002 |
| Groco 607 Limited | Sheffield | 2024 |
| Grocott Construction Limited | Prees | 2014 |
| Groesfaen Bach Holiday Cottages Limited | St. Asaph | 2012 |
| Gronn Frakt Limited | London | 2020 |
| Groombridge Holdings Ltd | Norwich | 2021 |
| Groomsport Cards Limited | Newtownards | 2021 |
| Groomsport Road Mews Limited | Bangor | 1985 |
| Groov Earth Records Ltd | London | 2007 |
| Groove Studio Ltd | Basingstoke | 2025 |
| Groovy Events Ltd | Oswestry | 2024 |
| Groovylens Limited | Pinner | 2020 |
| Grorate (UK) Crop Nutrition Ltd | Manchester | 2022 |
| Grose Properties Limited | Ipswich | 2008 |
| Gross Klein Wood Ltd | Peterborough | 2021 |
| Grosshans Verwaltungsgesellschaft Ltd | Manchester | 2023 |
| Grosvenor Acquisitions Ltd | London | 2017 |
| Grosvenor Buchanan Properties Limited | Ayr | 1988 |
| Grosvenor Car Sales Limited | Great Yarmouth | 2021 |
| Grosvenor Catering Facilities Management Limited | Warwick | 2010 |
| Grosvenor Construction Co. (Essex) Limited | Hornchurch | 1988 |
| Grosvenor Financial Nominees Limited | Hertfordshire | 1984 |
| Grosvenor Gardens Group Ltd | Bournemouth | 2016 |
| Grosvenor Health Care Ltd | Belfast | 1998 |
| Grosvenor Independent Financial Services Limited | Bristol | 2002 |
| Grosvenor Maritime Limited | London | 2025 |
| Grosvenor Mortgage & Insurance Consultancy Limited | Bristol | 2002 |
| Grosvenor National Limited | Poole | 2012 |
| Grosvenor Search Ltd | London | 2025 |
| Grosvenor Services Group Limited | London | 1998 |
| Grosvenor Shipbrokers Ltd. | Harrow | 1999 |
| Grosvenor Smythe OIL Tankers Limited | Harrow | 1994 |
| Grosvenor Stainless Steels Limited | Birmingham | 1981 |
| Grosvenor Transformer Services Limited | Salford | 1985 |
| Grosvenor Waterside (Cardiff Bay) Limited | London | 1982 |
| Grosvenor Waterside (Holdings) Limited | London | 1979 |
| Grosvenor Waterside Developments Limited | London | 1988 |
| Grosvenor Waterside Group Limited | London | 1988 |
| Grotto International Limited | Cardiff | 2016 |
| Ground Contamination Limited | Wimborne | 2021 |
| Ground Nominees Limited | Salford | 2006 |
| Ground Penetration Services Limited | Lichfield | 2016 |
| Ground Pro Developments Ltd | Nottingham | 2024 |
| Ground Rent Managers Limited | Southend On Sea | 2015 |
| Ground Screw Limited | Durham | 2018 |
| Ground Stabilisation Limited | Durham | 2024 |
| Groundcare Sales & Service Ltd | Worcestershire | 2007 |
| Grounded Heart Ltd | Southampton | 2011 |
| Groundforge Construction Ltd | Doncaster | 2026 |
| Groundsearch Limited | Callestick | 1998 |
| Groundstyle Properties Limited | Stoke-On-Trent | 2015 |
| Groundtrax Limited | Peterborough | 2011 |
| Groundward Limited | Oswestry | 2014 |
| Groundwork Contract Services Ltd | Blackburn | 2004 |
| Groundwork Limited | Blackburn | 2004 |
| Groundwork Solutions Ltd | Suffolk | 2018 |
| Groundworks & Civils Limited | Leamington Spa | 2021 |
| Groundworks and Excavations Limited | Brentwood | 2022 |
| Group 3 Holding Limited | Salford | 2013 |
| Group 7 Investments Limited | London | 2004 |
| Group Alco Limited | Wickford | 2025 |
| Group City Invest Ltd | Dover | 2025 |
| Group City Ltd | Dover | 2025 |
| Group Genius Limited | Keighley | 2006 |
| Group Momentum (Salons) Ltd | Poole | 1991 |
| Group NBT Limited | London | 2002 |
| Group Pat's PLC | Dover | 2025 |
| Group Pharmacies Limited | Manchester | 1966 |
| Group Scotland Facilities Managment Ltd | Glasgow | 2015 |
| Group Scotland Ltd | Kilmarnock | 2006 |