| Frontline Gym Ltd | Wholesale & retail | 2025 |
| Frontline Property Group Ltd | Real estate | 2026 |
| Frost Construction Limited | Construction | 2023 |
| Froxcado Food Partners Ltd | Wholesale & retail | 2024 |
| Fruitcast Limited | Agriculture & fishing | 2021 |
| Fruitech PVT Ltd | Agriculture & fishing | 2021 |
| FS7 Marketing Ltd | Professional & scientific | 2023 |
| FSD Holdings Limited | Financial services | 2024 |
| FT Studios Limited | Information & communication | 2019 |
| FTM 50 Limited | Public administration | 2015 |
| Fuddled Food Co. Ltd | Hospitality | 2024 |
| Fukurou Limited | Wholesale & retail | 2022 |
| Fukurou Takeaway Limited | Hospitality | 2023 |
| Full Picture Property Limited | Real estate | 2022 |
| Fullers Landscaping Limited | Administrative & support | 2018 |
| Fullteam Limited | Arts & recreation | 2015 |
| Funlad Medical Services Limited | Health & social care | 2023 |
| Funnelweb Media Limited | Information & communication | 2013 |
| FUR Heads Ltd | Wholesale & retail | 2021 |
| FUR Real Dog Grooming Limited | Agriculture & fishing | 2025 |
| Furiends Dog Grooming Ltd | Other services | 2021 |
| Furlongs Property Developments Ltd | Real estate | 2025 |
| Furneaux Real Estate Limited | Real estate | 2025 |
| Furniss Properties Ltd | Real estate | 2021 |
| Furrowland Holdings Limited | Professional & scientific | 2011 |
| Furrowland Limited | Wholesale & retail | 1983 |
| Fury Theatre Limited | Arts & recreation | 2020 |
| Fusion Education Consultancy Ltd | Education | 2019 |
| Fusion Property Group Ltd | Real estate | 2019 |
| Fusion Security Services Ltd | Administrative & support | 2024 |
| Future Primitive Limited | Information & communication | 2021 |
| Future Steel (UK) Limited | Professional & scientific | 2003 |
| Futureperfect Coaching Limited | Professional & scientific | 2019 |
| Fuzzy Duck Trucking Ltd | Transport & logistics | 2021 |
| Fytche-Taylor Planning Ltd | Professional & scientific | 2019 |
| G & a & SON Ltd | Hospitality | 2025 |
| G & a Sykes Limited | Real estate | 2021 |
| G & C Ceramics Ltd | Construction | 2023 |
| G & C Mills Ltd | Professional & scientific | 2015 |
| G & J Cleaning (Lincoln) Ltd | Administrative & support | 2023 |
| G & P Builders Limited | Construction | 2006 |
| G & S Building Services Lincs Limited | Construction | 2025 |
| G & T Motorhomes Ltd | Wholesale & retail | 2014 |
| G & W Bodyworks Limited | Wholesale & retail | 2015 |
| G & Y Group Limited | Wholesale & retail | 2019 |
| G a J Arable Limited | Administrative & support | 2009 |
| G Baker Civils Ltd | Construction | 2017 |
| G Betty Haulage Ltd | Transport & logistics | 2025 |
| G D Pickles Ltd | Construction | 2015 |
| G Dixon Plumbing and Heating Limited | Construction | 2026 |
| G Emerson Electrical Ltd | Construction | 2021 |
| G J Cutler Ltd | Transport & logistics | 2023 |
| G J Middleton Transport Ltd | Transport & logistics | 2024 |
| G J Priestley Limited | Agriculture & fishing | 2012 |
| G J Wright Ltd | Real estate | 2020 |
| G Jenkinson Decorating Ltd | Construction | 2025 |
| G M Blow Joinery and Building Services Limited | Construction | 2015 |
| G M Motors (Lincoln) Limited | Wholesale & retail | 2023 |
| G N T Wealth Management Ltd | Financial services | 2018 |
| G Pembery Electrical Installation Limited | Construction | 2019 |
| G Poole Logistics Ltd | Transport & logistics | 2018 |
| G S Haines & Sons Limited | Agriculture & fishing | 2011 |
| G S Hughes Ltd | Transport & logistics | 1998 |
| G S Jones & Sons Limited | Construction | 2003 |
| G Sahab Limited | Wholesale & retail | 2025 |
| G Sandhu Limited | Health & social care | 2007 |
| G Smith Projects Limited | Construction | 2012 |
| G&C Global Ventures Ltd | Financial services | 2025 |
| G&G Professional Services Ltd | Construction | 2024 |
| G&R Improvements LLP | | 2017 |
| G'S Cleans Ltd | Administrative & support | 2025 |
| G-Whizz Kitchen Ltd | Hospitality | 2020 |
| G. a. Bland Limited | Construction | 2005 |
| G. B. Skeet & Trap Supplies Ltd | Wholesale & retail | 2008 |
| G. Glassup & SON Limited | Agriculture & fishing | 1955 |
| G. K. Minness Contract Ltd | Transport & logistics | 2022 |
| G. L. Thomas & Daughters Haulage Ltd | Transport & logistics | 2025 |
| G. Lidgett Builders Ltd | Construction | 2003 |
| G.A. Mell (Builders) Limited | Construction | 1977 |
| G.A. Smalley Limited | Other services | 1979 |
| G.A.Newton and SON Ltd | Extraterritorial | 2014 |
| G.E. Autoservices Limited | Manufacturing | 2013 |
| G.E. Porter & Sons Limited | Agriculture & fishing | 1996 |
| G.E.Overton(Farms)Limited | Agriculture & fishing | 1961 |
| G.F. Holdings (Lincoln) Ltd | Financial services | 2025 |
| G.Foulston Home Improvements Ltd | Construction | 2012 |
| G.Gilbert Engineering Services Limited | Professional & scientific | 1990 |
| G.H. Chennells (Farms) Limited | Agriculture & fishing | 1976 |
| G.M.R. (Lincoln) Limited | Manufacturing | 2000 |
| G.P.S. Heart of Racing (Bloodstock) Limited | Agriculture & fishing | 2018 |
| G.S. Hughes (Holdings) Limited | Professional & scientific | 2001 |
| G.S.Grantham Limited | Agriculture & fishing | 1959 |
| G.W.Parker's Stores Limited | Wholesale & retail | 1963 |
| G15 Holdings Limited | Professional & scientific | 2009 |
| G3J Properties Limited | Real estate | 2021 |
| G7 Electrical Ltd | Construction | 2019 |
| GAA Property Ltd | Construction | 2026 |
| Gables Holdings Limited | Real estate | 2017 |
| Gabson Ltd | Transport & logistics | 2023 |
| Gaddingcourt Limited | Wholesale & retail | 1975 |