| Fidelity Special Values PLC | Financial services | 1994 |
| FIL Investment Advisors (UK) Limited | Financial services | 1984 |
| FIL Investment Services (UK) Limited | Financial services | 1986 |
| FIL Investments International | Financial services | 1979 |
| FIL Life Insurance Limited | Financial services | 1997 |
| FIL Nominee (Shareholdings) Limited | Professional & scientific | 1985 |
| FIL Pensions Management | Financial services | 1986 |
| FIL Platform Solutions (UK) Limited | Financial services | 2023 |
| FIL Real Estate Investment Management Limited | Construction | 2007 |
| FIL SHP Trustee (UK) Limited | Extraterritorial | 2024 |
| FIL Wealth Management Limited | Financial services | 2007 |
| Financial Administration Services Limited | Financial services | 1982 |
| Finbar Holdings Ltd | Real estate | 2024 |
| Fire and Security Risk Assessments Limited | Extraterritorial | 2017 |
| First Landlords Club Limited | Information & communication | 2017 |
| First London Electrics Ltd | Construction | 2026 |
| Firtrees Property Company Limited | Real estate | 1983 |
| Fisco-Tech Ltd | Professional & scientific | 2026 |
| Fisher Recruitment Ltd | Administrative & support | 2024 |
| Five Star Review Limited | Information & communication | 2022 |
| Fleetwood Advisory Group Ltd | Professional & scientific | 2026 |
| Flexsellerate Ltd | Professional & scientific | 2025 |
| Flow Gymnastics Ltd | Other services | 2021 |
| Flux Renewables Limited | Construction | 2024 |
| FOR the Good Ltd | Manufacturing | 2020 |
| Forbes Associates Limited | Manufacturing | 1983 |
| Fordbridge Residents Management Limited | Households | 2013 |
| Format Builders Limited | Other services | 1967 |
| Forza Elite Football Academy Ltd | Education | 2024 |
| Four Abbotts Limited | Manufacturing | 2023 |
| Francesca Jordan Make UP Limited | Other services | 2024 |
| Francis Court Freehold Company Limited | Households | 2005 |
| Fresh Deli Italiano Ltd | Hospitality | 2022 |
| Fresh Look Property Services Ltd | Construction | 2017 |
| Frilly Ltd | Manufacturing | 2026 |
| Frresh Flame Ltd | Hospitality | 2026 |
| FRY (Southborough) Limited | Real estate | 2002 |
| FRY Limited | Real estate | 1978 |
| Fuller CAD Ltd | Information & communication | 2016 |
| G-Tech Maintenance Ltd | Construction | 2025 |
| GA Property Maintenance Limited | Construction | 2015 |
| Galog Holdings Limited | Real estate | 2019 |
| Gameplan Ltd | Extraterritorial | 2021 |
| Garcia Romero Ltd | Health & social care | 2021 |
| Gatton Community Theatre Limited | Arts & recreation | 2000 |
| GAU Authentic Ltd | Agriculture & fishing | 2025 |
| Gavil Caterham Ltd | Real estate | 2025 |
| Gavil Education Winchester Ltd | Real estate | 2025 |
| Gavil Fareham Ltd | Real estate | 2025 |
| Gavil Investments Ltd | Real estate | 2024 |
| Gavil Marlow Ltd | Real estate | 2025 |
| Gavil Property Ltd | Real estate | 2025 |
| Gavil Property Marlow Ltd | Real estate | 2025 |
| Gavil Reading Ltd | Real estate | 2025 |
| Gavil Richmond Ltd | Real estate | 2025 |
| Gavil South Ltd | Real estate | 2024 |
| Gavil Wandsworth Ltd | Real estate | 2024 |
| Generation AI Limited | Information & communication | 2025 |
| Genius Consultancy Limited | Professional & scientific | 2024 |
| Genorel Limited | Hospitality | 2014 |
| Genuine Physio Ltd | Other services | 2021 |
| Gerry Morrison Productions Ltd | Information & communication | 2013 |
| Get-Inclusive Ltd | Administrative & support | 2025 |
| GEX Fireplaces Ltd | Construction | 2024 |
| GGS Maintenance Ltd | Construction | 2023 |
| Ghetutech Ltd | Construction | 2024 |
| Gibbs Talent Limited | Professional & scientific | 2022 |
| Giraffe Tower Ltd | Administrative & support | 2022 |
| Gladys Care Ltd | Administrative & support | 2025 |
| GM Motorz Ltd | Professional & scientific | 2023 |
| GNS Properties Limited | Real estate | 2005 |
| Godliz Global Marketing Limited | Professional & scientific | 2024 |
| Goftek Electrical Limited | Construction | 2007 |
| Gold Drive Advertising Limited | Professional & scientific | 2022 |
| Gold Rush Trading Ltd | Financial services | 2013 |
| Golden Estate Holdings Limited | Financial services | 2022 |
| Goldfar Ltd | Construction | 2014 |
| GOT Energy Limited | Extraterritorial | 2013 |
| Govinda Blessings Ltd | Wholesale & retail | 2025 |
| GP Assocoiates Limited | Construction | 2024 |
| GR8 Communications Ltd | Professional & scientific | 2019 |
| Graftonbury Estate Management Limited | Households | 2019 |
| Graftonbury Limited | Construction | 2020 |
| Grand Homes and Renovations Limited | Construction | 2020 |
| Granitestone Limited | Other services | 2017 |
| Great Outdoor Fitness Limited | Arts & recreation | 2018 |
| Green Plumbing and Heating Services Ltd | Construction | 2017 |
| Greencap Energy Ltd | Construction | 2010 |
| Gregory & Co. (Jewellers) Limited | Manufacturing | 1964 |
| Grills and Greens Limited | Hospitality | 1990 |
| Groveshaw Services Limited | Professional & scientific | 2014 |
| Guzzlebox Spirits Ltd | Wholesale & retail | 2024 |
| GVC (Vans Direct) Limited | Wholesale & retail | 1995 |
| GVC 01 Ltd | Wholesale & retail | 2025 |
| GVC Vans Ltd | Financial services | 2025 |
| H J Consultancy Ltd | Other services | 2011 |
| H2O Marketing Limited | Wholesale & retail | 2009 |
| H2O Trading Ltd | Wholesale & retail | 2025 |
| Hadleigh Court Management Company Limited | Real estate | 1989 |
| Hagley Consulting Ltd | Professional & scientific | 2024 |