| Elver Roots Limited | Professional & scientific | 2025 |
| Emerald Tide Ltd | Professional & scientific | 2025 |
| Emily Jones Ltd | Information & communication | 2018 |
| Enginuity Consulting Limited | Professional & scientific | 2007 |
| Envirobrite Limited | Health & social care | 2024 |
| Ergoplus Facilities Ltd | Administrative & support | 2009 |
| Es-O Racing Limited | Arts & recreation | 2023 |
| ESD Bonding Limited | Manufacturing | 2012 |
| ESIM0 Ltd | Wholesale & retail | 2025 |
| Essbase Enterprises Limited | Information & communication | 2016 |
| Evans Capital Management Limited | Professional & scientific | 2020 |
| EVANS7 Limited | Financial services | 2013 |
| Eves and Samuel Limited | Wholesale & retail | 2023 |
| Evolution Hire Limited | Administrative & support | 2023 |
| Evolution Tree Surgery & Hedges Limited | Administrative & support | 2023 |
| Evolution Tree Surgery and Ground Care Ltd | Administrative & support | 2019 |
| Excenta Limited | Information & communication | 2017 |
| Exchange Vaults Limited | Real estate | 2023 |
| Exeter Beach Hospitality Limited | Hospitality | 2026 |
| EYE Definition Berkshire Limited | Other services | 2022 |
| Eyewide Security Services Limited | Administrative & support | 2017 |
| Fabrum Consultants Ltd | Professional & scientific | 2011 |
| Factorial Marketing Limited | Professional & scientific | 2017 |
| Fairdinkum Property Ltd | Construction | 2024 |
| Fairfield PRE Training Limited | Arts & recreation | 2023 |
| Fairshare Systems Limited | Administrative & support | 2023 |
| Fairwinds Limited | Wholesale & retail | 1997 |
| Fallen Portal Ltd | Professional & scientific | 2013 |
| Fare Wise Travel Limited | Administrative & support | 2012 |
| Fawcus Corporate Limited | Professional & scientific | 2010 |
| FH Associates Limited | Professional & scientific | 2003 |
| Fibrestyle Cabling Services Limited | Construction | 2023 |
| FIFTY5PLUS.COM Limited | Real estate | 2001 |
| Finescape Landscaping & Paving Ltd | Administrative & support | 2025 |
| Finescape Limited | Administrative & support | 2016 |
| Finlay Jones Associates Ltd | Professional & scientific | 2011 |
| Fire & Safety Team Limited | Administrative & support | 2008 |
| Firefly Pharma Ltd | Other services | 2011 |
| First Class Learning Newbury Limited | Education | 2023 |
| Fisk Enterprises Limited | Professional & scientific | 2024 |
| Fitbiz Property 2S Limited | Real estate | 2016 |
| Flexiplumb Ltd | Construction | 2020 |
| Flobern Limited | Information & communication | 2023 |
| Flow Motorsport Ltd | Manufacturing | 2019 |
| Flowsoft Water Systems Limited | Wholesale & retail | 1985 |
| Flueline Design Limited | Construction | 2007 |
| FLY Fisher Group Limited | Extraterritorial | 2008 |
| Focuson BIZ Limited | Administrative & support | 2004 |
| Foggers Ltd | Professional & scientific | 2023 |
| Foliat Associates Limited | Professional & scientific | 2017 |
| Folly View Road Management Limited | Real estate | 2009 |
| FOR the Experience Ltd | Administrative & support | 2017 |
| Forensic Courier Services Limited | Transport & logistics | 2009 |
| Forest Companies Limited | Administrative & support | 2001 |
| Forge Close Limited | Households | 2003 |
| Foriva Ltd | Information & communication | 2025 |
| Forresters (Quay Street) Limited | Professional & scientific | 2019 |
| Fortitude Management Limited | Construction | 2013 |
| Fosbury Foodie Limited | Hospitality | 2016 |
| Foster's Imperial Steam Laundry Company Limited | Real estate | 1891 |
| Four Oaks Cars Limited | Transport & logistics | 2018 |
| Fourwinds Publications Ltd | Information & communication | 2023 |
| FPG Fiscal (UK) Limited | Financial services | 2016 |
| FR Modelling Ltd | Information & communication | 2024 |
| Frame Systems Limited | Manufacturing | 1999 |
| Framemakers Galleries Limited | Administrative & support | 2007 |
| Framley Properties Limited | Real estate | 2015 |
| Framont Limited | Other services | 2012 |
| Franchise Flow Systems Limited | Professional & scientific | 2025 |
| Frangipani Bathrooms Limited | Construction | 2019 |
| Fraser Coaching Limited | Professional & scientific | 2018 |
| Free Range Marketing Ltd | Professional & scientific | 2022 |
| Frobury Farm Limited | Agriculture & fishing | 2004 |
| Frogs Island 4X4 Workshop LLP | | 2014 |
| Fryer Freeman's Limited | Hospitality | 2023 |
| FS Building Solutions Ltd | Construction | 2019 |
| Fuel Cell Systems Ltd | Information & communication | 2010 |
| Fulcrum Technologies Ltd | Manufacturing | 2013 |
| Furr & Co Limited | Wholesale & retail | 2000 |
| Fusion Live Limited | Other services | 2009 |
| Futurewave Enterprises Ltd | Professional & scientific | 2024 |
| Fysa Ltd | Education | 2022 |
| G.S Solutions Ltd | Construction | 2023 |
| G.S.C Construction & Ground Maintenance Ltd | Construction | 2021 |
| Gambryce Limited | Information & communication | 2012 |
| Garden Plants Location Services Limited | Administrative & support | 2009 |
| Garmflow Fulfilment Ltd | Transport & logistics | 2025 |
| Garstonbury Ltd | Arts & recreation | 2014 |
| Gary Brown Racing Limited | Arts & recreation | 2025 |
| Gavin Parkhouse Limited | Arts & recreation | 2009 |
| Gentleman's Barbers of Hungerford Limited | Other services | 2015 |
| Gerhardt Consulting Limited | Administrative & support | 2009 |
| Gerry N Solutions Limited | Professional & scientific | 2008 |
| GG England Limited | Administrative & support | 2013 |
| Gilbert Site Services Limited | Construction | 2013 |
| Gillies Meadow (Basingstoke) Management Company Limited | Households | 2017 |
| Gilson Engineering (Newbury) Limited | Manufacturing | 1972 |
| Gilson Holdings Limited | Real estate | 1999 |
| Ginger Digital Ltd | Information & communication | 2012 |
| GJ Cooling Solutions Ltd | Construction | 2025 |