| Firco Financial Services Group Ltd | Financial services | 2016 |
| Firdous Traders Ltd | Wholesale & retail | 2026 |
| Fire & Marble Ltd | Hospitality | 2026 |
| Fire and Security Systems North West Ltd | Administrative & support | 2021 |
| Fire Bidco Limited | Financial services | 2021 |
| Fire Block Ltd | Public administration | 2020 |
| Fire Hire UK Ltd | Administrative & support | 2026 |
| Fire Leisure Trading Ltd | Hospitality | 2025 |
| Fire Lounge and Restaurant Limited | Hospitality | 2025 |
| Fire Protection Consultancy UK Limited | Construction | 2022 |
| Fire Protection Liverpool UK Limited | Manufacturing | 2022 |
| Fire Star Security Limited | Construction | 2026 |
| Fire-X Consulting Ltd | Professional & scientific | 2011 |
| Fireblade Electrical Limited | Construction | 2014 |
| Firebrand Group Ltd | Information & communication | 2016 |
| Firejack Ltd | Hospitality | 2019 |
| Firenzium Ltd | Administrative & support | 2026 |
| Firhill Services Limited | Professional & scientific | 2017 |
| Firm FIX Interiors Ltd | Construction | 2018 |
| Firmdial Limited | Transport & logistics | 1987 |
| Firmus Property Services Limited | Real estate | 2026 |
| Firs Petroleum Ltd | Transport & logistics | 1980 |
| First Advantage Consulting Limited | Manufacturing | 2021 |
| First Call Marketing Ltd | Administrative & support | 2025 |
| First Call Property Maintenance Wirral Ltd | Construction | 2024 |
| First Choice Clothing Limited | Wholesale & retail | 2025 |
| First Choice Property Accounting Ltd | Professional & scientific | 2025 |
| First Class Claims Limited | Professional & scientific | 2023 |
| First Class Learning Liverpool South Ltd | Education | 2026 |
| First Class Leisure Limited | Wholesale & retail | 2014 |
| First Class Services Limited | Administrative & support | 2022 |
| First Class Signs & Engraving Ltd | Manufacturing | 2006 |
| First Class Travelling Ltd | Transport & logistics | 2018 |
| First Contact Optometry Limited | Health & social care | 1996 |
| First Cross Consultants Limited | Professional & scientific | 2021 |
| First Educator Ltd | Education | 2020 |
| First Electric Liverpool Limited | Construction | 2019 |
| First Electric Rodney Street Ltd | Construction | 2018 |
| First Footsteps (Anfield) Limited | Education | 2014 |
| First Footsteps (Leyland) Limited | Education | 2014 |
| First Footsteps (Norris Green) Limited | Education | 2014 |
| First Footsteps Hub Ltd | Education | 2023 |
| First Fruits Outdoor Learning Ltd | Education | 2022 |
| First Group Liverpool Ltd | Construction | 2021 |
| First Group Property Ltd | Real estate | 2025 |
| First Impression Consulting Limited | Professional & scientific | 2020 |
| First Legal Solicitors Ltd | Professional & scientific | 2016 |
| First Limited | Professional & scientific | 1955 |
| First Line Aesthetics Ltd | Health & social care | 2025 |
| First Maintenance Liverpool Ltd | Construction | 2019 |
| First OUT There Ltd | Education | 2023 |
| First Person Project C.I.C. | Health & social care | 2019 |
| First Place Investments Limited | Construction | 2009 |
| First Point Events Ltd | Administrative & support | 2026 |
| First Pressing Ltd | Real estate | 2021 |
| First Quarter Liverpool Ltd | Other services | 2026 |
| First Steps Enterprise Limited | Administrative & support | 2014 |
| First Take Video Limited | Information & communication | 1986 |
| First UK Investment Ltd | Real estate | 2025 |
| First Venture NW Ltd | Hospitality | 2023 |
| First-Class Group Sevices Ltd | Hospitality | 2024 |
| FIRST4HAIR Ltd | Other services | 2019 |
| FIRST4LOCKS Ltd | Construction | 2021 |
| Firstentconstructionltd Ltd | Construction | 2025 |
| Firstportal Limited | Real estate | 2000 |
| Fiscal Hire Ltd. | Real estate | 1991 |
| Fischer Crowne (Fiscal Services) Limited | Professional & scientific | 2009 |
| Fischer Crowne (UK) Limited | Professional & scientific | 2009 |
| Fischer Investment Holdings Ltd | Administrative & support | 2024 |
| Fischerco Limited | Professional & scientific | 2015 |
| Fiscus Management Limited | Administrative & support | 2019 |
| Fish Buddy Limited | Information & communication | 2019 |
| FISH4 Limited | Extraterritorial | 1995 |
| FISH4 Trading Limited | Extraterritorial | 2001 |
| FISH4CARS Limited | Extraterritorial | 2000 |
| FISH4HOMES Limited | Information & communication | 2000 |
| FISH4JOBS Limited | Extraterritorial | 2000 |
| Fishant Limited | Real estate | 2018 |
| Fisher Brands Ltd | Wholesale & retail | 2019 |
| Fisher Logistic Services Limited | Transport & logistics | 2024 |
| Fisher Murray and Co | | 1995 |
| Fisherman's Rest Ltd | Hospitality | 2010 |
| Fishermansfortune Ltd | Arts & recreation | 2024 |
| Fishingthemind CIC | Health & social care | 2024 |
| Fishphilip Limited | Hospitality | 2025 |
| Fishtail PVT Ltd | Hospitality | 2023 |
| Fishwell Leisure Limited | Agriculture & fishing | 2013 |
| Fiske Ford Properties Limited | Real estate | 2025 |
| Fit My Windows Ltd | Construction | 2019 |
| Fit Property Lettings and Management Limited | Real estate | 2017 |
| Fit-Pharm Sports Nutrition Ltd | Other services | 2018 |
| FIT2FIGHTUK Ltd | Health & social care | 2023 |
| Fitbody Massage Ltd | Health & social care | 2023 |
| Fitness and Funbees Ltd | Health & social care | 2018 |
| Fitness Connection (Liverpool) Limited | Arts & recreation | 1996 |
| Fitness for ALL (UK) Limited | Arts & recreation | 2014 |
| FITNESSPRO95 Ltd | Health & social care | 2018 |
| Fitra Organic Ltd | Hospitality | 2019 |
| Fitted Domestic Projects Limited | Wholesale & retail | 2023 |
| Fitweb Limited | Real estate | 2001 |