| Equipe Regeneration Limited | Administrative & support | 2007 |
| ESM Morris Minors Limited | Wholesale & retail | 2004 |
| Eurocareer Consultants Limited | Administrative & support | 1991 |
| Evangelize Consulting Ltd | Professional & scientific | 2020 |
| Event Logistics Solutions Limited | Transport & logistics | 2025 |
| Expert Options Limited | Financial services | 2015 |
| F & R Fornello Limited | Wholesale & retail | 2023 |
| Farflung Surf Limited | Wholesale & retail | 2020 |
| Fayza's Kitchen Limited | Hospitality | 2020 |
| Feather & Stitch Limited | Wholesale & retail | 2011 |
| Felcourt IT Services Limited | Information & communication | 2016 |
| Feral Peacock Limited | Arts & recreation | 2018 |
| Fern Facilities Management Limited | Administrative & support | 2025 |
| Ferris Creative Ltd | Professional & scientific | 2023 |
| Financial Education Limited | Professional & scientific | 2013 |
| Finest Natural Health Limited | Wholesale & retail | 2014 |
| First Proof UK Ltd | Information & communication | 2026 |
| FIRST4TENNIS Limited | Administrative & support | 2013 |
| Fluffball Designs Ltd | Construction | 2019 |
| Foresightful Limited | Professional & scientific | 2014 |
| Forest ROW Catering Ltd | Hospitality | 2024 |
| Forest Flooring Limited | Wholesale & retail | 2017 |
| Forest ROW Community Fridge CIC | Agriculture & fishing | 2020 |
| Foundation for Water | Professional & scientific | 2008 |
| FPR Investments Limited | Real estate | 2015 |
| FR Property Ltd | Real estate | 2018 |
| Frank Whittle Management Limited | Real estate | 2007 |
| Franky Athill Ltd | Professional & scientific | 2021 |
| Freshlife Marketing Limited | Wholesale & retail | 1978 |
| Frow Resource Community Interest Company | Water & waste | 2021 |
| Fvpmarine Limited | Professional & scientific | 2019 |
| Gaia Natural Health Limited | Health & social care | 2010 |
| Garbrook Investment Company Limited | Real estate | 1962 |
| Gavin Mcgrath Creative Ltd | Arts & recreation | 2025 |
| GB Maritime Limited | Manufacturing | 2023 |
| Gbpools Ltd | Construction | 2016 |
| Geospatial Data Services Limited | Information & communication | 2022 |
| Glansevern Properties Limited | Construction | 1964 |
| Glass Switch Ltd | Manufacturing | 2014 |
| Glenister Property Ltd | Real estate | 2024 |
| Goodwinallenuk Limited | Construction | 2022 |
| Graben Limited | Professional & scientific | 2011 |
| Greenfields Educational Trust | Education | 1983 |
| H. FOX & Sons (London) Limited | Construction | 1939 |
| Happy Wood Stoves Ltd | Construction | 2022 |
| Harley ROW Clinic Ltd | Health & social care | 2021 |
| Hartfield Trading Limited | Wholesale & retail | 2004 |
| Hati Consulting Limited | Professional & scientific | 2019 |
| Hatton Garden Mount Co Ltd | Wholesale & retail | 1973 |
| HE Taniwha Hikuroa Limited | Financial services | 2015 |
| Hedge Brown Property Management Limited | Real estate | 2024 |
| Henry Woods Holdings Limited | Financial services | 2024 |
| Highbridge Property Services Ltd | Construction | 2014 |
| Highgate Works Limited | Financial services | 2022 |
| Highway Inspection Services Limited | Information & communication | 2023 |
| Hindleap Consulting Limited | Administrative & support | 2026 |
| HMK Advisory Limited | Administrative & support | 2017 |
| Home Haus Ltd | Real estate | 2019 |
| ID Construct Limited | Manufacturing | 2026 |
| Incasoft Limited | Information & communication | 2016 |
| Ingrid Houchin Studio Ltd | Manufacturing | 2021 |
| INH Green Limited | Professional & scientific | 2025 |
| Initial Talent Limited | Administrative & support | 2016 |
| Innovation X Global Ltd | Education | 2021 |
| Insite Energy Holdings Limited | Financial services | 2009 |
| Integrated Environmental Management Limited | Professional & scientific | 2011 |
| International Cranial Association | Other services | 2008 |
| Ivory Tower Property Services Ltd | Administrative & support | 2014 |
| Izazi Limited | Real estate | 2021 |
| Izazi Properties Ltd | Real estate | 2018 |
| J Taylor Building Services Ltd | Construction | 2026 |
| J.A.N Homes Ltd | Real estate | 2021 |
| James Elizabeth Properties Limited | Real estate | 2025 |
| Jamie's Interiors Ltd | Construction | 2024 |
| Java & Jazz Limited | Hospitality | 2004 |
| Java and Jazz Events Ltd | Hospitality | 2026 |
| JDM Financial Consultancy Ltd | Professional & scientific | 2025 |
| JEN PEN Writing Limited | Arts & recreation | 2024 |
| Jennifer Movement White Limited | Arts & recreation | 2019 |
| Jnts Consulting Ltd | Professional & scientific | 2026 |
| Joachim & JED Ltd | Real estate | 2025 |
| John Marshall Associates Limited | Professional & scientific | 2006 |
| John Tattam Limited | Wholesale & retail | 2006 |
| Jota Motorsport Limited | Arts & recreation | 1999 |
| JOU Jou's Bites Ltd | Hospitality | 2023 |
| June Productions Limited | Information & communication | 1970 |
| Juno Financial Ltd | Financial services | 2025 |
| Juno Indemnity Limited | Financial services | 2025 |
| JZ Golf Shop Limited | Wholesale & retail | 2024 |
| K&A Corporation Ltd | Administrative & support | 2016 |
| K&V Firm Ltd | Financial services | 2024 |
| K4RXR Ltd | Households | 2020 |
| Kailash P&P Limited | Wholesale & retail | 2024 |
| Katsura Gardens Limited | Administrative & support | 2011 |
| Kenford Homes Ltd | Construction | 2011 |
| Kennard Court (NO.1) Limited | Professional & scientific | 1992 |
| Kennard Court (NO.2) Limited | Professional & scientific | 1992 |
| Kennard Court 1 Leaseholders Ltd | Real estate | 2017 |
| Keyseek Limited | Construction | 1993 |
| Knightwood Associates Limited | Administrative & support | 2009 |