| Extract Studio Ltd | Professional & scientific | 2012 |
| EYECARE2U Ltd | Other services | 2015 |
| F.I.B. Cleaning Limited | Administrative & support | 2023 |
| F4 Investments Ltd | Real estate | 2023 |
| Faas Cars Limited | Transport & logistics | 2023 |
| Fairfax Foster Limited | Transport & logistics | 2024 |
| Fairways Kingston Hill Ltd | Households | 1999 |
| FAR2FEAR Ltd | Wholesale & retail | 2024 |
| Farleigh Rovers Youth Ltd | Arts & recreation | 2021 |
| Farooqi & Co Limited | Financial services | 2017 |
| Fasel Maintenance Ltd | Construction | 2026 |
| Fashionfood 21 Ltd | Hospitality | 2011 |
| FBF Multiservices UK Ltd | Construction | 2026 |
| Fenzo Living Ltd | Wholesale & retail | 2026 |
| Festival Cordiale Ltd | Arts & recreation | 2026 |
| First Carmel Management Company Limited | Households | 1984 |
| First Networking Ltd | Hospitality | 2011 |
| First Place Property Management Limited | Real estate | 2014 |
| First Stanislaus Management Company Limited | Households | 1981 |
| Fitzgerald Building Developers Ltd | Construction | 2024 |
| Fitzgerald Building Services Limited | Construction | 2009 |
| Fitzgerald Lease and Land Management Ltd | Real estate | 2025 |
| FIX ‘EM Car Repairs Ltd | Wholesale & retail | 2024 |
| Fixtrope Construction Ltd. | Construction | 2018 |
| Fizzy Pixel Ltd | Information & communication | 2021 |
| Fletchers Facilities Limited | Construction | 2011 |
| Flipnrent Ltd | Households | 2023 |
| Focus 4 YOU Limited | Administrative & support | 2006 |
| Focus Build Developments Ltd | Real estate | 2019 |
| Focus Build Ltd | Construction | 2014 |
| Foliclub Ltd | Manufacturing | 2025 |
| For-A (UK) Limited | Manufacturing | 1995 |
| Foxbridge Healthcare Solutions Limited | Administrative & support | 2019 |
| FOY Motor Company Limited | Wholesale & retail | 2020 |
| Fraser and Co Housing Solutions Limited | Real estate | 2025 |
| Freq - Fest Ltd | Wholesale & retail | 2022 |
| Fresh Asia (Europe) Ltd | Wholesale & retail | 2011 |
| Fresh Asia Properties Ltd | Real estate | 2025 |
| Friendly Characters Limited | Information & communication | 2026 |
| Front Foot Drive Limited | Administrative & support | 2010 |
| Fujikura Europe Limited | Manufacturing | 1988 |
| Fuko Trade Brixton Ltd | Hospitality | 2023 |
| Fukrey Ltd | Information & communication | 2025 |
| Full Spectrum ARB Ltd | Agriculture & fishing | 2023 |
| Funding Alternative Group Ltd | Financial services | 2018 |
| Funding Alternative Ltd | Financial services | 2021 |
| Funding Cash Advance Ltd | Financial services | 2021 |
| Funding Merchant Advance Ltd | Financial services | 2024 |
| Funding Your Invoice Ltd | Financial services | 2021 |
| Funding Your Working Capital Limited | Financial services | 2023 |
| Fundingxperts Ltd | Financial services | 2021 |
| Fusebox Electrical Services Ltd | Manufacturing | 2010 |
| G Luli Builders Ltd | Construction | 2026 |
| G Wash Limited | Other services | 2019 |
| G.M.T (Harrow) Ltd | Wholesale & retail | 2002 |
| G.T. Vehicles Limited | Wholesale & retail | 2000 |
| Gainham Ltd | Information & communication | 2012 |
| Gangnam Ltd | Hospitality | 2015 |
| Garden Appy Ltd | Wholesale & retail | 2024 |
| Garden Rooms & Awnings Ltd | Wholesale & retail | 2025 |
| Garlic and Chilli Ltd | Hospitality | 2021 |
| Gasman Management Services Ltd | Professional & scientific | 2026 |
| Gaspia Ltd | Construction | 2000 |
| Gatehouse Residents Association Limited(The) | Households | 1958 |
| Gatti Homes Limited | Construction | 2013 |
| GDW Print and Design Limited | Professional & scientific | 2015 |
| GEM Outreach Limited | Health & social care | 2025 |
| Gemnal Ltd | Manufacturing | 2023 |
| Genuine Solutions Distribution Limited | Wholesale & retail | 2020 |
| GET Techy WID IT Ltd | Wholesale & retail | 2025 |
| Getty's Enterprises Ltd | Other services | 2012 |
| Gezici Handyman Ltd | Construction | 2020 |
| Giant Reach Media Ltd | Professional & scientific | 2020 |
| Gibden Education Ltd | Education | 2024 |
| Gigi Ices Limited | Hospitality | 2026 |
| Gilded Art & Signs Ltd | Professional & scientific | 2024 |
| Gilders Fish Bar Limited | Hospitality | 2023 |
| Gilders Shop Ltd | Wholesale & retail | 2024 |
| Gladeside (Chessington) Management Compawy Limited | Households | 1970 |
| Glamorgan Retail Limited | Wholesale & retail | 2008 |
| Glanza Work Limited | Wholesale & retail | 2025 |
| Global Tech Leads Ltd | Wholesale & retail | 2025 |
| Globoboss Limited | Information & communication | 2007 |
| Gloventure Limited | Transport & logistics | 2012 |
| GMS Maintenance and Cleaning Services Ltd | Construction | 2025 |
| Gnanam and Nava Ltd | Wholesale & retail | 2018 |
| GNH Accountants & Tax Consultants Ltd | Financial services | 2012 |
| GNH Enterprise UK Ltd | Construction | 2018 |
| Go Fit GET Fit Limited | Other services | 2018 |
| Goalio Limited | Administrative & support | 2004 |
| Goguri Ltd | Other services | 2017 |
| Goldborn Limited | Transport & logistics | 2018 |
| Golden Line Design Ltd | Construction | 2018 |
| Goldrose Holdings Limited | Households | 2021 |
| Goldrose Management Limited | Real estate | 2010 |
| Golfbidder Limited | Wholesale & retail | 2000 |
| Good Mercy Ltd | Professional & scientific | 2025 |
| Goodbye Asbestos Ltd | Water & waste | 2017 |
| Goodbye Rubbish Ltd | Water & waste | 2021 |
| Goodsall's Little Gems Ltd | Education | 2023 |