| Flowworks Trailbuilders Ltd | Construction | 2026 |
| Floyd Construction (Yorkshire) Ltd | Construction | 2023 |
| FLS Properties Ltd | Real estate | 2020 |
| Fluid Power Engineering Ltd | Professional & scientific | 2018 |
| FLX8 Holdings Ltd | Hospitality | 2025 |
| FLY Dynamic Ltd | Education | 2026 |
| FLY Lynk Limited | Transport & logistics | 2025 |
| Flybritz Ltd | Administrative & support | 2025 |
| FM Accountancy & Tax Services Limited | Professional & scientific | 2015 |
| FM Building and Plumbing Ltd | Construction | 2021 |
| FM Consultancy Huddersfield Ltd | Professional & scientific | 2026 |
| FM Eco Ltd | Wholesale & retail | 2025 |
| FM Properties Huddersfield Ltd | Real estate | 2026 |
| FMB Property Rental Ltd | Real estate | 2020 |
| FMC TEX Ltd | Wholesale & retail | 2018 |
| FMG Finance Limited | Administrative & support | 2014 |
| FMG Group Holdings Limited | Administrative & support | 2014 |
| FMG Support (FIM) Ltd | Administrative & support | 1991 |
| FMG Support (Rrrm) Ltd | Administrative & support | 1992 |
| FMG Support Group Limited | Administrative & support | 2008 |
| FMG Support Ltd | Professional & scientific | 1999 |
| FMI Investments Ltd | Real estate | 2020 |
| FMK Housing Limited | Real estate | 2025 |
| FMN Commercial Ltd | Wholesale & retail | 2024 |
| Fmnt Trading Limited | Wholesale & retail | 2007 |
| FMS Design Limited | Professional & scientific | 2019 |
| FN Lightning Ltd | Health & social care | 2022 |
| FNR Group Ltd | Real estate | 2024 |
| Foak Design Studio Limited | Professional & scientific | 2019 |
| Focus Brands Limited | Wholesale & retail | 2007 |
| Focus Group Holdings Limited | Professional & scientific | 2005 |
| Foeyams Ltd | Hospitality | 2023 |
| Foggin Ltd | Arts & recreation | 2024 |
| Fold Farm Management Limited | Households | 2021 |
| Folksnshops Limited | Wholesale & retail | 2022 |
| Follingworth Consulting Limited | Professional & scientific | 2020 |
| Folly Hall Developments Limited | Real estate | 2005 |
| Folly Hall Residential Ltd | Construction | 2023 |
| Folmount Holdings Limited | Financial services | 2019 |
| Folmount Limited | Wholesale & retail | 1987 |
| Food & Mood Ltd | Hospitality | 2023 |
| Food Circle Huddersfield CIC | Wholesale & retail | 2024 |
| Food Corner H Ltd | Hospitality | 2020 |
| Food Customs Ltd | Hospitality | 2025 |
| Food Plus HD Limited | Wholesale & retail | 2024 |
| Food Yard Ltd | Manufacturing | 2020 |
| Foodie Friends Dinner Limited | Hospitality | 2025 |
| Foodie Heaven HD Limited | Hospitality | 2024 |
| Foodmate UK Limited | Information & communication | 2003 |
| Foot Formula Limited | Health & social care | 2023 |
| Foot Health Care Ltd | Health & social care | 2016 |
| Foot Soliders Ltd | Wholesale & retail | 2026 |
| Forbes Property Ltd | Real estate | 2022 |
| Ford Gate Properties Limited | Real estate | 2016 |
| Ford Haulage Ltd | Transport & logistics | 2021 |
| Ford Heights Limited | Real estate | 2024 |
| Ford Projects Ltd | Construction | 2018 |
| Forecast Digital Limited | Professional & scientific | 2011 |
| Forecourt Assist South Yorkshire Limited | Wholesale & retail | 2015 |
| Forelock and Fringe Ltd | Wholesale & retail | 2018 |
| Foremost Consulting Limited | Professional & scientific | 2025 |
| Forensic Psychiatry Experts Ltd | Health & social care | 2022 |
| Forest Holiday Home Ltd | Hospitality | 2023 |
| Forest Mountains Ltd. | Wholesale & retail | 2020 |
| Forest Timber Buildings Ltd | Manufacturing | 2013 |
| Foresyght Solutions Ltd | Administrative & support | 2024 |
| Forever Lettings Limited | Real estate | 2025 |
| Forge Built Construction Ltd | Construction | 2026 |
| Forge Official Limited | Wholesale & retail | 2026 |
| Fork in the Fish Restaurant Limited | Hospitality | 2022 |
| Forktruck Services UK (Parts) Ltd | Wholesale & retail | 2021 |
| Forktruck Services UK Ltd | Manufacturing | 2009 |
| Forma Property Developments Limited | Construction | 2024 |
| Formative Design Limited | Professional & scientific | 2004 |
| Formlessempire Ltd | Wholesale & retail | 2025 |
| Formulab 3D Limited | Manufacturing | 2025 |
| Forronan CIC | Other services | 2019 |
| Forteq (UK) Limited | Manufacturing | 1935 |
| Fortify Identity Ltd | Information & communication | 2024 |
| Fortimed Ltd | Professional & scientific | 2025 |
| Fortis Electrical Ltd | Construction | 2025 |
| Fortress Composite Doors Ltd | Wholesale & retail | 2013 |
| Fortune Chicken Ltd | Hospitality | 2025 |
| Fortune Cookie (Lintwaite) Ltd | Hospitality | 2025 |
| Fortune Life Home Care Ltd | Health & social care | 2014 |
| Forty Quid Ltd | Construction | 2020 |
| Forward Operating Base Ltd | Arts & recreation | 2012 |
| Fosters (Motors) Limited | Real estate | 1959 |
| Found in Ltd | Other services | 2014 |
| Fountify Limited | Administrative & support | 2025 |
| Four Seasons West Yorkshire Limited | Administrative & support | 2013 |
| FOX & Crane Management Company Limited | Real estate | 2016 |
| FOX and Grain Limited | Manufacturing | 2023 |
| FOX and Llama Partners Limited | Extraterritorial | 2025 |
| FOX Engravers Limited | Manufacturing | 2003 |
| FOX Form Limited | Other services | 2025 |
| FOX Property Consultancy Limited | Administrative & support | 2023 |
| Foxden Corporation Ltd | Wholesale & retail | 2025 |
| Foxroyd Limited | Administrative & support | 2008 |
| FP Corporation Limited | Health & social care | 2012 |