| Freelance Engineering International Limited | Professional & scientific | 2005 |
| Freelance Engineers Limited | Extraterritorial | 1995 |
| Frema Shipping Ltd | Transport & logistics | 2025 |
| Fresh Start Recruitment (UK) Ltd | Administrative & support | 2004 |
| Friary View (Newark) Limited | Households | 2025 |
| Fribbler (UK) Ltd | Wholesale & retail | 2023 |
| Fribbler Ltd | Information & communication | 2025 |
| Friends of Warsop Vale CIC | Education | 2022 |
| Frontline Cladding Solutions Ltd | Construction | 2025 |
| FTM Renovations Ltd | Construction | 2025 |
| FU Archer Ltd | Transport & logistics | 2022 |
| Fuardi Ltd | Real estate | 2023 |
| Full Circle Care Agency Limited | Extraterritorial | 2016 |
| Full Circle Catering Agency Limited | Extraterritorial | 2016 |
| Full Circle Education Agency Limited | Administrative & support | 2022 |
| Full Circle Properties Limited | Real estate | 2017 |
| Full Phat Design Limited | Manufacturing | 2013 |
| Full Reptile Creative Limited | Administrative & support | 2018 |
| Full Reptile Limited | Information & communication | 2015 |
| Fully Aware. Ltd | Wholesale & retail | 2023 |
| Fundingyou Ltd | Administrative & support | 2012 |
| Futurable Ltd | Information & communication | 2025 |
| Future 4 C Limited | Agriculture & fishing | 2011 |
| Future Health Ltd | Health & social care | 2015 |
| Future Mini MIX Limited | Manufacturing | 2015 |
| Future Mortgage Solutions Limited | Financial services | 2025 |
| Future Products Limited | Manufacturing | 1993 |
| Futureproof Training Ltd | Professional & scientific | 2017 |
| Futurum Kids UK Ltd | Professional & scientific | 2018 |
| FV Currie Ltd | Administrative & support | 2022 |
| FW Homes Group Limited | Administrative & support | 2026 |
| FX Embroidery Limited | Wholesale & retail | 2016 |
| Fynamix Ltd | Wholesale & retail | 2025 |
| Fyrtrans Ltd | Transport & logistics | 2019 |
| G & D Estates Limited | Construction | 2013 |
| G & M Creations Ltd | Wholesale & retail | 2019 |
| G & O Limited | Wholesale & retail | 2024 |
| G & Sons Catering Limited | Hospitality | 2024 |
| G H Motors (Mansfield) Limited | Wholesale & retail | 2014 |
| G H Property Ltd | Real estate | 2022 |
| G Hall Management Limited | Real estate | 2012 |
| G Mann Accountancy Solutions Ltd | Professional & scientific | 2017 |
| G N T Homes Ltd | Real estate | 2023 |
| G R Automation Limited | Professional & scientific | 2022 |
| G Roworth Agricultural Contracting Ltd | Agriculture & fishing | 2019 |
| G W Funeral Service Limited | Other services | 2006 |
| G Wilton Decorating Contractors Limited | Construction | 2000 |
| G-Mecs Limited | Energy | 2012 |
| G.B. Heights Roofing Limited | Construction | 2016 |
| G3 Installations Ltd | Construction | 2021 |
| Gabensar Global Ltd | Transport & logistics | 2019 |
| Gabor Concrete Ltd | Construction | 2016 |
| Gabriel&Mario Cleaning Limited | Administrative & support | 2025 |
| Gail Burton Ltd | Hospitality | 2024 |
| Gainco Limited | Wholesale & retail | 2023 |
| Gains for Drains Limited | Manufacturing | 2023 |
| Galaxyshowers Ltd | Wholesale & retail | 2020 |
| Gallery Solace Ltd | Wholesale & retail | 2011 |
| Ganatra Properties Limited | Real estate | 2023 |
| Garage Door Fixed (NI) Ltd | Extraterritorial | 2018 |
| Garage Doors Fixed Ltd | Extraterritorial | 2018 |
| Garage Hive Limited | Information & communication | 2016 |
| Garagemanage Limited | Information & communication | 2026 |
| Garaka Limited | Professional & scientific | 2020 |
| Garden and Home Care Ltd | Administrative & support | 2025 |
| Gardenfield Ltd | Health & social care | 2024 |
| Gardens of Giving CIC | Agriculture & fishing | 2024 |
| Gardom Developments Limited | Real estate | 2025 |
| Gareth Lewis (UK) Limited | Construction | 2014 |
| Garment Praise Ltd | Real estate | 2025 |
| Garrifly Ltd | Wholesale & retail | 2022 |
| Garry Edson Swfc Limited | Construction | 2015 |
| Garuda Heavy Lift Limited | Administrative & support | 2022 |
| GAS Care Limited | Other services | 1998 |
| GAS Care Services Ltd | Other services | 2025 |
| Gascoigne Forensic Collision Consultants Limited | Administrative & support | 2024 |
| Gascoyne Consultancy Ltd | Professional & scientific | 2021 |
| Gasforceuk Limited | Construction | 2014 |
| Gasgain Limited | Education | 1999 |
| Gateway 325 Limited | Wholesale & retail | 2026 |
| Gateway Portfolio Limited | Real estate | 2017 |
| Gathered Living Ltd | Wholesale & retail | 2021 |
| Gatorbloom Studios Ltd | Information & communication | 2026 |
| Gavin Cann Plumbing and Heating Ltd | Construction | 2016 |
| GB DIY Store Ltd | Wholesale & retail | 2017 |
| GB Qhse Services Ltd | Administrative & support | 2024 |
| GB Welding & Fabrication Ltd | Construction | 2023 |
| GBA Trans Ltd | Administrative & support | 2017 |
| GCC & FM Limited | Administrative & support | 2022 |
| GCM Care Limited | Health & social care | 2017 |
| GCR Auto Centre Ltd | Wholesale & retail | 2024 |
| Gdkdk Limited | Professional & scientific | 2026 |
| GDL Build Limited | Construction | 2020 |
| GDL Estates Limited | Real estate | 2020 |
| Gdyservices Ltd | Construction | 2026 |
| Gearr UK Ltd | Transport & logistics | 2022 |
| Gecko Shack Limited | Wholesale & retail | 2013 |
| GEE Sport Ltd | Wholesale & retail | 2011 |
| Geemorleymicro Ltd | Hospitality | 2020 |
| Geldard & SON Limited | Health & social care | 2012 |