| Fino Restaurant Limited | Hospitality | 2001 |
| Fintou Ltd | Arts & recreation | 2023 |
| Fire Depot Ltd | Extraterritorial | 2020 |
| Fire UK Investor 2 Limited Liability Partnership | | 2022 |
| Fire UK Investor Limited Liability Partnership | | 2021 |
| Firechief Products Limited | Financial services | 1986 |
| First END Ltd | Real estate | 2003 |
| Fish on Baits Limited | Other services | 2023 |
| Fitzbarrow Associates Limited | Professional & scientific | 2022 |
| Fitzrovia Property Development Limited | Construction | 2014 |
| Five Tango Aviation Ltd | Transport & logistics | 2025 |
| Five Units Left Limited | Real estate | 2025 |
| Fivefiveone Creative Limited | Administrative & support | 2018 |
| Flavell Property Ltd | Real estate | 2023 |
| Fleming Road Management Company Limited | Administrative & support | 1990 |
| Flex Culture Limited | Manufacturing | 2024 |
| Focalpoint Solutions Limited | Extraterritorial | 1998 |
| Food Sourcing Limited | Hospitality | 2006 |
| Forces Property Direct Ltd | Households | 2014 |
| Fords (Oakham) Limited | Wholesale & retail | 1947 |
| Foremark Garage Limited | Wholesale & retail | 2001 |
| Forest Bake Ltd | Hospitality | 2016 |
| Forest Homes Stamford Ltd | Construction | 2018 |
| Forest Homes Stamford Property Limited | Real estate | 2025 |
| Foretell Consulting Limited | Professional & scientific | 2007 |
| Form&Blom Ltd | Wholesale & retail | 2025 |
| Formetrix Ltd | Manufacturing | 2025 |
| Forspap Ltd | Wholesale & retail | 2016 |
| FOX & Oak Construction Ltd | Construction | 2025 |
| FOX CUT Barbers Ltd | Other services | 2025 |
| Foxborough Homes Ltd | Construction | 2018 |
| Frami Limited | Construction | 2025 |
| Francis-Ellis Property Ltd | Real estate | 2020 |
| Freeman's Venues Management Services Ltd | Hospitality | 2015 |
| Fresh Physio Ltd | Professional & scientific | 2012 |
| Frontline Plumbing Ltd | Construction | 2018 |
| Frost Marketing Limited | Administrative & support | 2020 |
| Funfit Ltd | Arts & recreation | 2024 |
| Furry Dice Limited | Wholesale & retail | 2013 |
| Future Marketing Global Limited | Administrative & support | 2010 |
| Future Stars Camps Ltd | Education | 2025 |
| Fyeo AI Research Ltd | Information & communication | 2024 |
| G and T Clothing Limited | Wholesale & retail | 2010 |
| G E K G Accounting Services Limited | Professional & scientific | 2021 |
| G&J Investment Management Ltd | Real estate | 2026 |
| G&T Originals Limited | Wholesale & retail | 2016 |
| G.J.S.S. Collective Ltd | Other services | 2024 |
| Gaben Trans Ltd | Transport & logistics | 2020 |
| Galson Sciences Limited | Professional & scientific | 1992 |
| Gaol Street Management Company Limited | Real estate | 2007 |
| Garratt Transport Limited | Transport & logistics | 1960 |
| Gates Car Wash Ltd | Administrative & support | 2026 |
| GB Precision Fabrications Limited | Manufacturing | 2016 |
| GB Young Consulting Services Limited | Professional & scientific | 2025 |
| Gecko 55 Limited | Information & communication | 1998 |
| Generia Ltd | Information & communication | 2010 |
| Geofox Ltd | Real estate | 2022 |
| George Lane Limited | Real estate | 2007 |
| George Samuel Roberts Services Ltd | Manufacturing | 2022 |
| Gilmartin Services Ltd | Real estate | 2018 |
| Girl Friday Limited | Administrative & support | 2025 |
| GLC Project Management Limited | Professional & scientific | 2018 |
| GLF Group Limited | Professional & scientific | 2016 |
| Going Nowhere Limited | Wholesale & retail | 2020 |
| Golanguedoc LLP | | 2008 |
| Gold Line Feeds Limited | Manufacturing | 1987 |
| Gold Line Holdings Limited | Administrative & support | 1939 |
| Gold Line Investments Group Limited | Other services | 2020 |
| Golden Dragon LE15 Ltd | Hospitality | 2021 |
| Golden Land Projects Limited | Other services | 2018 |
| Goldfinch Care Agency Private Limited | Health & social care | 2014 |
| Goldmark Atelier Limited | Manufacturing | 2006 |
| Golf Club Management Consultancy Limited | Professional & scientific | 2026 |
| Goodes Construction Ltd | Construction | 2017 |
| Gordon Wyatt Limited | Wholesale & retail | 1965 |
| Gorleston Road Limited | Extraterritorial | 1998 |
| Graeme Ough Developments Ltd | Construction | 2021 |
| Grafton Spaces Ltd | Construction | 2019 |
| Graham Kendrick Limited | Real estate | 2017 |
| Grand Home (UK) Co., Limited | Wholesale & retail | 2018 |
| Grant R Murray Limited | Financial services | 2005 |
| Grayson Lewis Financial Planning Limited | Professional & scientific | 2024 |
| Grayson Lewis Holdings Limited | Financial services | 2024 |
| Green Oakham Dental Care Ltd | Health & social care | 2024 |
| Green-Wood Bespoke Ltd | Manufacturing | 2025 |
| Green-Wood by Design Ltd | Manufacturing | 2022 |
| Greenfrog Ltd | Transport & logistics | 2021 |
| Greenfrog Movers Ltd | Transport & logistics | 2023 |
| Greenfrog Storage Ltd | Administrative & support | 2023 |
| Grimoldby Ltd | Professional & scientific | 2019 |
| Grimoldby Property Limited | Real estate | 2021 |
| Grove Commercial Estates Ltd | Real estate | 2022 |
| Grove Residential Estates Ltd | Real estate | 2022 |
| Grow HER Business Limited | Professional & scientific | 2023 |
| Gryphon Advisory Ltd | Extraterritorial | 2026 |
| GS Oakham Ltd | Other services | 2025 |
| GTT Wireless Limited | Professional & scientific | 2008 |
| Guardid Limited | Information & communication | 2025 |
| Guava Juice Illustrations Ltd | Arts & recreation | 2024 |
| Gunthorpe Estates Ltd | Administrative & support | 2012 |