| FOX Supplies Limited | Transport & logistics | 1990 |
| Foxwise Accountancy Limited | Professional & scientific | 2003 |
| Francis Web Development Limited | Information & communication | 2017 |
| Frango DA Guia Portuguese Chicken BBQ Ltd | Hospitality | 2024 |
| Frank Hall Tailoring Limited | Wholesale & retail | 2004 |
| Freckeltons Limited | Real estate | 2003 |
| Fred Sherwood & Sons (Trading) Limited | Extraterritorial | 2007 |
| Fred Sherwood Group Limited | Real estate | 2007 |
| Freddys Fast Food Ltd | Hospitality | 2024 |
| Fresh AD Communications Limited | Professional & scientific | 2000 |
| Funky Monkey Gifts Ltd | Wholesale & retail | 2026 |
| Future Knitting Company Limited | Real estate | 1985 |
| Fuzzy Heads Ltd | Hospitality | 2025 |
| G I a Transport Ltd | Transport & logistics | 2006 |
| G T O Solutions Ltd | Professional & scientific | 2001 |
| G&J Plant & Crane Ltd | Construction | 2014 |
| G. & M.J. Crouch & SON Limited | Transport & logistics | 1975 |
| G.E.S.I. Limited | Other services | 2003 |
| G.W.S. Fullalove Limited | | 1974 |
| G.W.Throop Limited | Construction | 1984 |
| Gallid Limited | | 1980 |
| Gallows Hill (Warwick) Residents Management Company Limited | Households | 2026 |
| Gannon Enterprises Ltd | Administrative & support | 2004 |
| Garry Hamilton Limited | Construction | 2005 |
| Gary Wilkes Decorating Limited | Construction | 2006 |
| GAS Safety & Boilers Ltd | Administrative & support | 2002 |
| Gascare Services (Barwell) Limited | Construction | 2003 |
| GB Locksmiths and Installations Limited | Construction | 2005 |
| Geddes Electrical (Leicester) Limited | Construction | 2003 |
| Gemba Consultancy Limited | Professional & scientific | 2004 |
| Gemini Associates Limited | Real estate | 1999 |
| Genel 86 Limited | Wholesale & retail | 2000 |
| General Print Materials Limited | Wholesale & retail | 1981 |
| Geoff AGG Engineering Limited | Manufacturing | 2007 |
| Geoffrey Frank Barker Ltd | Wholesale & retail | 2024 |
| German Auto Solutions Ltd | Wholesale & retail | 2016 |
| Ghela Limited | Professional & scientific | 2003 |
| Ghelipharm Limited | Health & social care | 2006 |
| Ghumra Accounting Ltd | Professional & scientific | 2006 |
| Gibbs and Dandy Limited | Extraterritorial | 1920 |
| Gilbert & Mellish Ltd | Administrative & support | 2014 |
| Gilded FOX Ltd | Manufacturing | 2025 |
| Gilgrist Limited | Administrative & support | 2007 |
| Gill & Co. (UK) Limited | Professional & scientific | 2006 |
| Gills Fresh Meats Limited | Extraterritorial | 1982 |
| Gills Meat Halls Limited | Extraterritorial | 1967 |
| Gills Meat Products Limited | Manufacturing | 1968 |
| GIS4BUSINESS Limited | Information & communication | 2004 |
| Giving World | Water & waste | 2004 |
| Glebe Farm Blaby Limited | Agriculture & fishing | 2019 |
| Glencoe Homes Limited | Construction | 1980 |
| Go Cars Rutland Limited | Wholesale & retail | 2007 |
| Go Fixings Limited | Wholesale & retail | 1996 |
| Goodlife Health Limited | Arts & recreation | 1999 |
| Goodman Retail Limited | Wholesale & retail | 1995 |
| Goodman Wilkinson Associates Ltd | Professional & scientific | 1995 |
| Goward Securities Limited | Real estate | 1999 |
| Graeme Ough Associates Limited | Real estate | 2005 |
| Grafar Limited | Manufacturing | 1942 |
| Graham Farish Limited | Professional & scientific | 1928 |
| Graham Group Limited | Extraterritorial | 1952 |
| Grangeway Food Services Limited | Extraterritorial | 1988 |
| Gray Carpendale Limited | Professional & scientific | 2003 |
| Graypaul Motors Limited | Wholesale & retail | 1995 |
| Green Electrical Distributors Limited | Wholesale & retail | 2002 |
| Greenland Block Ltd | Real estate | 2018 |
| Gregory John Kitchens Limited | Construction | 2004 |
| Griffin Close Management Company Limited | Households | 1984 |
| Griffins Motor Services Limited | Wholesale & retail | 2002 |
| Grow UP 2002 Ltd | Wholesale & retail | 2025 |
| Guardian Holdings (Leicester) Limited | Professional & scientific | 2006 |
| GUY Salmon Limited | Wholesale & retail | 1998 |
| Gwynne Ltd | Wholesale & retail | 2026 |
| Gypsum Investments Limited | Extraterritorial | 1966 |
| H & U Retail Ltd | Wholesale & retail | 2024 |
| H. Monk & Sons (Furnishers) Limited | Wholesale & retail | 1978 |
| H.A.Y. Supplies Limited | Wholesale & retail | 2003 |
| H.I.B. (FM) Limited | Financial services | 1992 |
| H.O.Bowley Limited | Manufacturing | 2003 |
| H2 Software Solutions Limited | Information & communication | 2004 |
| H3 Investments Limited | Real estate | 2001 |
| Hallaton Manor (Aquarius Care) Limited | Administrative & support | 1999 |
| Hallaton Manor Limited | Health & social care | 1992 |
| Halls of Ibstock Limited | Wholesale & retail | 1981 |
| Hamilton Stanley Associates Limited | Financial services | 2007 |
| Hancocks Holdings Limited | Professional & scientific | 1994 |
| Harboro' Rubber Company Limited(The) | Manufacturing | 1931 |
| Harlestone Group Ltd. | Wholesale & retail | 2012 |
| Harveys Windows & Conservatories Limited | Construction | 2005 |
| Hashtag Group Ltd | Wholesale & retail | 2018 |
| Hassall & SON Limited | Construction | 2003 |
| Hathern Edge Residents Management Company Limited | Households | 2025 |
| Hathern Limited | Wholesale & retail | 2014 |
| Have a Good Day Ltd | Manufacturing | 2022 |
| Hawksmoor Capital Ltd | Financial services | 2004 |
| HAY Holdings UK Limited | Real estate | 2008 |
| HCM Property Developments Limited | Construction | 2018 |
| Health NS Ltd | Public administration | 2023 |
| Heartbeat Holdings Limited | Financial services | 2023 |
| Heartwell Care Ltd | Health & social care | 2005 |