| Forge & Dwell Ltd | Construction | 2024 |
| Forge Genetics Ltd | Professional & scientific | 2023 |
| Forge Legacy Ltd | Professional & scientific | 2025 |
| Forge Resourcing Limited | Professional & scientific | 2015 |
| Forgecm Limited | Construction | 2019 |
| Forget ME NOT Fitness Limited | Arts & recreation | 2020 |
| Forget ME Nott Memoria Ltd | Other services | 2021 |
| Forget ME Nott Organic Limited | Other services | 2024 |
| Forget ME Nott Pet Crematorium Limited | Other services | 2006 |
| Forgex Digital Ltd | Professional & scientific | 2026 |
| Foriox International Ltd | Wholesale & retail | 2021 |
| Forkk IT Limited | Hospitality | 2026 |
| Forklift Truck Depot Limited | Manufacturing | 2020 |
| Form & Function Development Limited | Education | 2015 |
| Forman Consulting Limited | Information & communication | 2007 |
| Forman Properties Limited | Real estate | 1998 |
| Formantwaves Ltd | Information & communication | 2023 |
| Formation 166 Developments Ltd | Construction | 2016 |
| Formation Audio Ltd | Information & communication | 2010 |
| Formation Studio Limited | Manufacturing | 2016 |
| Formed Decorators Ltd | Construction | 2024 |
| Former Bridge Management Company Limited | Real estate | 2012 |
| Formost Air-Conditioning Limited | Energy | 1997 |
| Formsi Ltd | Education | 2024 |
| Formula Motor Factors Ltd | Wholesale & retail | 2020 |
| Formyou Ltd | Education | 2026 |
| Fornex Healthcare Limited | Wholesale & retail | 2019 |
| Fornham Country Park Limited | Hospitality | 2020 |
| Forno Pizza Beeston Ltd | Hospitality | 2023 |
| Forrest Multi Skilled Tradesman Limited | Construction | 2023 |
| Forrest Park Limited | Professional & scientific | 2011 |
| Forshaw Compliance Solutions Limited | Professional & scientific | 2018 |
| Forsyth Audit and Risk Ltd | Professional & scientific | 2020 |
| Forsyth Barnes Limited | Professional & scientific | 2014 |
| Forsyth Radford Investment Holdings Limited | Real estate | 2022 |
| Forsyth Radford Property Management LLP | | 2022 |
| Fort Casuals Ltd | Wholesale & retail | 2019 |
| Fort Formalwear Ltd | Wholesale & retail | 2024 |
| Forte Arts Limited | Education | 2017 |
| Forteca Ltd | Construction | 2024 |
| Fortior Capital Limited | Administrative & support | 2026 |
| Fortis Contracting (Holdings) Limited | Financial services | 2025 |
| Fortis Event Management Limited | Professional & scientific | 2012 |
| Fortis Gym Limited | Arts & recreation | 2023 |
| Fortknoxnottingham Ltd | Construction | 2026 |
| Fortnum Grove Ltd | Real estate | 2024 |
| Fortress Build Ltd | Real estate | 2017 |
| Fortress Electrical & Mechanical Services Ltd | Construction | 2020 |
| Fortress Estates Limited | Construction | 2011 |
| Fortress Gates and Fabrications Ltd | Construction | 2012 |
| Fortress JIU Jitsu Limited | Education | 2024 |
| Fortress Premises Ltd | Real estate | 2026 |
| Fortress Roofing Limited | Construction | 2025 |
| Fortress Two Limited | Real estate | 2014 |
| Fortun & Sons Ltd | Construction | 2025 |
| Fortuna Limited | Real estate | 2021 |
| Fortune Care Service Ltd | Health & social care | 2022 |
| Fortune Havens Ltd | Hospitality | 2025 |
| Fortunice Investments Limited | Real estate | 2020 |
| Forty 4 Group Limited | Professional & scientific | 2023 |
| Forty One Digital Ltd | Information & communication | 2016 |
| Forty Two Skate Shop Limited | Wholesale & retail | 2018 |
| Fortywinksuk Limited | Manufacturing | 2021 |
| Forum Building Plans Limited | Construction | 1994 |
| Forward Bookkeeping & Payroll Ltd | Professional & scientific | 2025 |
| Forward Electrical Supplies Ltd | Wholesale & retail | 2022 |
| Forward HR Limited | Administrative & support | 2016 |
| Forward Thinking (Nottingham) Limited | Professional & scientific | 2021 |
| Forward Thinking Ltd | Construction | 2023 |
| Fosman Limited | Administrative & support | 1999 |
| Fosse Civil Engineering Ltd | Construction | 2016 |
| Fosse Financial Services Limited | Financial services | 2009 |
| Fosseway Homes Limited | | 1974 |
| Foster & Bright Ltd | Construction | 2023 |
| Foster IP Limited | Other services | 2020 |
| Foster Property Holdings Limited | Real estate | 2018 |
| Foster Read Limited | Wholesale & retail | 2006 |
| Foster Sweet Estates Ltd | Real estate | 2018 |
| Foster-Gregory (Bull Close Road) Limited | Real estate | 1998 |
| Foster-Rankine Lifestyle Limited | Real estate | 2017 |
| Fostering Dimensions Limited | Health & social care | 2009 |
| Fostering People Limited | Health & social care | 2001 |
| Fosters (Decorations & Curtains)Limited | | 1936 |
| Fostrad Limited | Real estate | 2015 |
| Fostun & Sons Limited | Financial services | 2021 |
| Fouette Accountancy Solutions Limited | Professional & scientific | 2011 |
| Foulstone Mcpherson Group Limited | Financial services | 2018 |
| Found and Flown Ltd | Wholesale & retail | 2025 |
| Foundara Property Group Ltd | Real estate | 2026 |
| Foundation Developments Specialists Ltd | Construction | 2020 |
| Foundation Investment Partners Limited | Professional & scientific | 2003 |
| Foundation Testing Services Limited | Information & communication | 1999 |
| Founders Base Ltd | Professional & scientific | 2026 |
| Founding the Village Ltd | Health & social care | 2025 |
| Foundry IP Limited | Information & communication | 2020 |
| Fountain Head House School Limited | Education | 2020 |
| Fountaindale Investments Limited | Financial services | 2022 |
| Four Corners Building and Refurbishment Ltd | Construction | 2022 |
| Four Corners Developments Limited | Administrative & support | 2005 |
| Four Lenton Road Freehold Management Company Limited | Households | 2016 |