| Eulexica Ltd | Information & communication | 2021 |
| Evolve Platforms Ltd | Information & communication | 2024 |
| Ewave Consulting Limited | Information & communication | 2002 |
| Executivejungle.Co.Uk (Consultants) Limited | Administrative & support | 2012 |
| Executivejungle.Co.Uk Limited | Professional & scientific | 2012 |
| Extended Reality Ltd | Information & communication | 2023 |
| Extrinsic Solutions Limited | Wholesale & retail | 2015 |
| Fabric Shack Limited | Wholesale & retail | 2017 |
| Fadeis Ltd | Professional & scientific | 2024 |
| Fairleigh Plain Limited | Extraterritorial | 2004 |
| Faith Dressage Ltd | Agriculture & fishing | 2017 |
| Fender Proof Limited | Professional & scientific | 2023 |
| FF Vice Ltd | Manufacturing | 2016 |
| Fichbert Group Ltd | Wholesale & retail | 2018 |
| Field Number 5173 Limited | Households | 2012 |
| Fifty-Eight Stanhope Gardens Limited | Households | 1993 |
| Fine Horticulture Limited | Administrative & support | 2026 |
| Finite Technology Ventures Ltd | Professional & scientific | 2020 |
| First Pass Netball Limited | Education | 2025 |
| Fizikul Product Ltd | Professional & scientific | 2024 |
| FJ Hospitality Consulting Limited | Professional & scientific | 2025 |
| Flashrat Solutions Ltd | Information & communication | 2005 |
| Flistridge Fold Limited | Agriculture & fishing | 2010 |
| Flowsim Engineering Limited | Professional & scientific | 2024 |
| Flying Monk Community Projects CIC | Administrative & support | 2017 |
| Flying Monk Engineering Limited | Professional & scientific | 2021 |
| Food Convertors Limited | Agriculture & fishing | 1999 |
| Fosse Barn Limited | Financial services | 2017 |
| Fosskirk Limited | Professional & scientific | 2017 |
| Fosskirk Property Ltd | Real estate | 2025 |
| Foxcoded Ltd | Information & communication | 2023 |
| Foxley Finance Limited | Professional & scientific | 2023 |
| Foxley Plumbing & Heating Limited | Construction | 2011 |
| Framlington Syndicate Limited | Real estate | 1934 |
| Francommerce Ltd | Hospitality | 2021 |
| Frank Academy Ltd | Education | 2023 |
| Franklins Garden Design Limited | Administrative & support | 2012 |
| Fresh Start Landscaping Limited | Administrative & support | 2022 |
| Freshcoat Painters & Decorators Limited | Construction | 2025 |
| Frith Sculpture Limited | Manufacturing | 2000 |
| Frocester Group Ltd | Professional & scientific | 2018 |
| Fuller Wealth Management Limited | Financial services | 2021 |
| Futures by Design Ltd | Professional & scientific | 2003 |
| G Curtin Roofing Limited | Construction | 2013 |
| G S Moth Ltd | Professional & scientific | 2018 |
| G&D Vehicle Services Ltd | Wholesale & retail | 2022 |
| Gadver Group Limited | Wholesale & retail | 2025 |
| Garden Terrace Cafe Limited | Hospitality | 2011 |
| Gardner Bailey Properties Ltd | Real estate | 2024 |
| Gavel Group Limited | Financial services | 2019 |
| GB Performance Horses Ltd | Other services | 2018 |
| Gemstone Consultancy Ltd | Professional & scientific | 2017 |
| George Estates Limited | Real estate | 2017 |
| George Lovett Limited | Information & communication | 1984 |
| Georgina Cooke Interiors Limited | Professional & scientific | 2013 |
| Georgina COX Design Limited | Professional & scientific | 2026 |
| Gimlet Consulting Services Ltd | Professional & scientific | 2025 |
| Glen Avon Court (Minety) Limited | Real estate | 2014 |
| Global Venture Solutions Ltd | Professional & scientific | 2014 |
| Globe Media Limited | Information & communication | 2002 |
| Godeland (UK) Ltd | Wholesale & retail | 2008 |
| Going Higher Places Ltd | Wholesale & retail | 2017 |
| Gone Rogue Web Design Ltd | Information & communication | 2023 |
| Good Thinking Psychology Ltd | Health & social care | 2024 |
| Goodmayes Limited | Construction | 2015 |
| GPB Analysis Ltd | Information & communication | 2025 |
| GPS Pharma Services Limited | Manufacturing | 2024 |
| Green Oak Planters Ltd | Manufacturing | 2019 |
| Greenacre Consultants Limited | Financial services | 2001 |
| Greenhall Estates Central Limited | Construction | 2004 |
| Greenscape Services Limited | Professional & scientific | 2002 |
| Grey Teasel Limited | Households | 2018 |
| Griffin Water & Energy Ltd | Water & waste | 2019 |
| Gscas Co Limited | Professional & scientific | 2021 |
| Guinea Estates Limited | Real estate | 2025 |
| GUN Documents Online Ltd | Information & communication | 2025 |
| Halliesphere Ltd | Manufacturing | 2023 |
| Happy Bears Childcare Ltd | Education | 2026 |
| Harriet Brady Ltd | Administrative & support | 2026 |
| Harvest Moon Brewery Limited | Manufacturing | 2024 |
| Harviste Limited | Professional & scientific | 2024 |
| Hatch and Castle Developments Limited | Construction | 2024 |
| Hdpm Design Limited | Professional & scientific | 2026 |
| Heather Bird Health of Harley Street Ltd | Health & social care | 2006 |
| Hellraze Ltd | Extraterritorial | 2008 |
| Herbert Baker Heritage Trust CIC | Education | 2025 |
| Hewitt House Ltd | Real estate | 2015 |
| HF Unico Ltd | Information & communication | 2026 |
| HFP Solutions Limited | Agriculture & fishing | 2026 |
| HHF Ltd | Financial services | 2022 |
| HI7 Ltd | Information & communication | 2015 |
| Hilditch Auctioneers Limited | Professional & scientific | 2009 |
| Hilditch Connect Limited | Information & communication | 2018 |
| Hilditch Group Limited | Water & waste | 2006 |
| Hilditch Holdings Limited | Financial services | 2016 |
| HJP Consulting Ltd | Professional & scientific | 2016 |
| HK Change Consulting (Hkcc) Limited | Professional & scientific | 2025 |
| HKB Holiday Limited | Real estate | 2022 |
| Holmes Beauty Limited | Other services | 2004 |
| Holywell Dairy Consultancy Ltd | Agriculture & fishing | 2025 |