| Fpmn Limited | Extraterritorial | 2013 |
| Fpsoussi Ltd | Health & social care | 2023 |
| Fragrant Knives Ltd | Wholesale & retail | 2024 |
| Frampton Court Limited | Households | 2001 |
| Francis Associates (43) LLP | | 2012 |
| Francis Developments Limited | Construction | 2014 |
| Francis Investments (43) Limited | Real estate | 2024 |
| Francis Managing Agents Limited | Real estate | 2015 |
| Frankie Grace Limited | Wholesale & retail | 2020 |
| Franklin & Sons Limited | Manufacturing | 1999 |
| Fraser Elite Property Limited | Real estate | 2021 |
| Free Your Desire Ltd | Information & communication | 2026 |
| Freelancerpraman Ltd | Information & communication | 2024 |
| Freshline Group Limited | Wholesale & retail | 2026 |
| Friendship AI Limited | Information & communication | 2025 |
| Frognal Property Developments Limited | Real estate | 2013 |
| Front ROW Fashion Limited | Other services | 2012 |
| Frontier Market Consultants Limited | Professional & scientific | 2021 |
| Frontline Medical Solutions Ltd | Health & social care | 2011 |
| FS Consultancy Ltd | Professional & scientific | 2021 |
| FS Projects Ltd | Professional & scientific | 2012 |
| FSC Technology Limited | Information & communication | 2023 |
| FTR Visuals Ltd | Information & communication | 2019 |
| Fulhaus Services Ltd | Real estate | 2026 |
| Fundamental Care Training Limited | Education | 2016 |
| Funky Life Accessories Ltd | Wholesale & retail | 2012 |
| Furg! Enterprises Limited | Health & social care | 2014 |
| Fusion Window & Door Maintenance Limited | Construction | 2016 |
| FUSIONFINDS1 Ltd | Wholesale & retail | 2024 |
| Future Stars Education Ltd | Education | 2017 |
| Future Tech Academy Limited | Education | 2026 |
| Futuris Solutions Limited | Professional & scientific | 2015 |
| Fuzzy Logica Limited | Information & communication | 2012 |
| G Avis & Sons Limited | Construction | 2022 |
| G Rowe Plumbing & Heating Limited | Construction | 2010 |
| G S London Ltd | Manufacturing | 2009 |
| G Vorster Services Limited | Construction | 2019 |
| G&E Consultants Limited | Professional & scientific | 2003 |
| G-Investment Ltd | Real estate | 2021 |
| G6 Holdings Limited | Financial services | 2019 |
| Gabriel Lechovolea Ltd | Construction | 2019 |
| Gaining Solutions Limited | Administrative & support | 2016 |
| Gainsford Court (Radcliffe Road) Management Company Limited | Households | 2008 |
| Gainsmith Limited | Wholesale & retail | 2019 |
| Gaius HR (UK) Ltd | Information & communication | 2019 |
| Galland Ltd | Information & communication | 2012 |
| Galland Properties Ltd | Real estate | 2023 |
| Ganesh Limited | Wholesale & retail | 2001 |
| Garnett (Holdings) Ltd | Professional & scientific | 1994 |
| Garratts Group Limited | Other services | 2020 |
| Gary Withers Limited | Extraterritorial | 2022 |
| GAS Plus Heating Limited | Construction | 2015 |
| Gasga Limited | Manufacturing | 2017 |
| Gaunt Properties (Edinburgh) Limited | Real estate | 2003 |
| Gaunt Properties Limited | Wholesale & retail | 2003 |
| GAV 27 Ltd | Hospitality | 2024 |
| Gavacan 27 Ltd | Construction | 2023 |
| Gavacan Construction Limited | Construction | 2014 |
| Gavacan Developments Limited | Construction | 2019 |
| Gavacan Homes Limited | Construction | 2013 |
| GAZ Design Limited | Construction | 2015 |
| Gazelle Ventures Designs Limited | Energy | 2021 |
| GBS Wealth Ltd | Financial services | 2025 |
| GDR Medical Limited | Wholesale & retail | 2015 |
| Gemstone IT Services Ltd | Information & communication | 2021 |
| Gemstone Technology Group Ltd | Financial services | 2025 |
| Genalpha Solutions Limited | Information & communication | 2023 |
| Geometria Limited | Construction | 2004 |
| George Dove Homes Limited | Construction | 2000 |
| George Garnish Ltd | Information & communication | 2023 |
| Gerald Lamb Limited | Health & social care | 2011 |
| German Technik Limited | Wholesale & retail | 2014 |
| Gerrards Cross Bookshop Ltd | Wholesale & retail | 2024 |
| GET SET 4 Tennis CIC | Arts & recreation | 2018 |
| Getting Jiggy Innovations Limited | Wholesale & retail | 2025 |
| Gfwq Limited | Information & communication | 2017 |
| Ghani Management Consultancy Limited | Information & communication | 2012 |
| Gilkesford Ltd | Real estate | 2025 |
| GKB Properties Limited | Construction | 2016 |
| Gkon Orthopaedics Ltd | Health & social care | 2023 |
| Glaad Management and Consultancy Ltd | Households | 2023 |
| Glacier Glazing Ltd | Construction | 2021 |
| Glandore Developments Ltd | Construction | 2003 |
| Glazing Products Direct Limited | Construction | 2021 |
| Gleamro Limited | Wholesale & retail | 2023 |
| Glen Chess Enfranchisement Company Limited | Households | 2004 |
| Glen Chess New Block Limited | Real estate | 2003 |
| Global & IT Solutions for Health Care Ltd | Information & communication | 2014 |
| Global Products Sourcing Limited | Professional & scientific | 2013 |
| Global Tax Pros UK Ltd | Professional & scientific | 2017 |
| GM Financial Group Limited | Financial services | 2024 |
| GM Lynott Ltd | Construction | 2023 |
| GMA Group Services Ltd | Construction | 2020 |
| Gmedia Ltd | Information & communication | 2025 |
| GMP Associates Ltd | Information & communication | 2025 |
| GMP Construction Management Ltd | Professional & scientific | 2025 |
| GN Commerce Limited | Wholesale & retail | 2021 |
| Go Faster Biking Ltd | Wholesale & retail | 2017 |
| Go Green Grocers Ltd | Wholesale & retail | 2020 |
| Go Jira Ltd | Administrative & support | 2016 |