| Farm and Fleet Services Limited | Wholesale & retail | 2025 |
| Fastest Time of Day Engineering Limited | Professional & scientific | 2002 |
| FAT 2 Fit FC CIC | Arts & recreation | 2025 |
| Feelable Ltd | Wholesale & retail | 2025 |
| Feet First Farriery Ltd | Agriculture & fishing | 2023 |
| Fernbank Advertising Limited | Professional & scientific | 2003 |
| Fernbank Limited | Professional & scientific | 2008 |
| Festival of the Iberian Horse Ltd | Arts & recreation | 2023 |
| Fetch Transport Ltd | Transport & logistics | 2025 |
| Field and Fashion Ltd | Wholesale & retail | 2024 |
| Fimp Developments Limited | Construction | 2001 |
| Finnimore Farms Ltd | Agriculture & fishing | 2025 |
| Firebrand Brewing Limited | Manufacturing | 2016 |
| First Choice Homes (South West) Limited | Construction | 1999 |
| Fitness Installed Thoughtfully Ltd | Arts & recreation | 2025 |
| Flower Scene (Launceston) Limited | Wholesale & retail | 2003 |
| FLY Zero Ltd. | Transport & logistics | 2020 |
| Foggies PL Ltd | Wholesale & retail | 2024 |
| Folk (UK) Limited | Financial services | 2014 |
| Folk Group Limited | Financial services | 2015 |
| Folk Nominee Limited | Financial services | 2016 |
| FOLK2FOLK Cbils Lending Limited | Administrative & support | 2020 |
| FOLK2FOLK Limited | Financial services | 2012 |
| Ford Farm Barns Limited | Real estate | 2026 |
| FOX & Grapes Lifton Ltd | Hospitality | 2022 |
| Fran GUY Limited | Information & communication | 2007 |
| Francis Brothers Devon Ltd | Real estate | 2026 |
| Francis Gamull Ltd | Professional & scientific | 2010 |
| Freestone Logistics Limited | Transport & logistics | 2012 |
| Frost of Exeter Limited | Real estate | 2016 |
| Frys Logistics Ltd | Transport & logistics | 2010 |
| Fusion XY Limited | Professional & scientific | 2023 |
| Fvsion Ltd | Administrative & support | 2025 |
| G H and S a Parsons Limited | Agriculture & fishing | 2009 |
| G. Glamping Limited | Hospitality | 2020 |
| G.D.C. Transport Services Limited | Transport & logistics | 2002 |
| G2G Communications Limited | Administrative & support | 2025 |
| Galvayne Holdings Ltd | Financial services | 2023 |
| Galvayne Properties Ltd | Real estate | 2023 |
| Garnish Sharing Ltd | Hospitality | 2019 |
| Gateway Tile and Slate Limited | Wholesale & retail | 2001 |
| Gcdtec Limited | Information & communication | 2010 |
| GE Cornwall Ltd | Construction | 2022 |
| GE Cornwall Property Ltd | Extraterritorial | 2022 |
| Genesis Scaffold Ltd | Construction | 2024 |
| George H DAW, GEO H DAW, G H DAW & Co Gunmakers Ltd | Extraterritorial | 2013 |
| Gerrys Originals (Holdings) Ltd | Manufacturing | 2022 |
| Gerrys Originals Ltd | Administrative & support | 2011 |
| Gillbard Farms Limited | Agriculture & fishing | 2022 |
| Global Motor Sales Ltd | Wholesale & retail | 2017 |
| Global Motor Services Ltd | Wholesale & retail | 2021 |
| Glossy Media Ltd | Information & communication | 2022 |
| GMJ Development Limited | Construction | 2021 |
| Go Foliar Ltd | Wholesale & retail | 2026 |
| Golden Bowl Launceston Ltd | Hospitality | 2022 |
| Greenaways Garage and Tyres Limited | Wholesale & retail | 2009 |
| Greenaways Tyre and Exhaust Services Ltd | Wholesale & retail | 2014 |
| Greystone Property Development (SW) Limited | Construction | 2020 |
| Grigg Brothers Ltd | Energy | 2013 |
| Ground Breaking Utilities Ltd | Construction | 2025 |
| Gwegifts Ltd | Wholesale & retail | 2008 |
| H.E.S Dental Equipment Limited | Health & social care | 2010 |
| Hadley Construction Ltd | Construction | 2024 |
| Haines Plant and Construction Limited | Administrative & support | 2011 |
| Halloumi Street Ltd | Administrative & support | 2018 |
| Hamblys Limited | Manufacturing | 2008 |
| Hamri Wholesale Limited | Wholesale & retail | 2025 |
| HAN Healthcare Ltd | Health & social care | 2026 |
| Hangry Ltd. | Hospitality | 2017 |
| Harbour OWL Properties Limited | Hospitality | 2019 |
| Harbourwitch Media Limited | Arts & recreation | 2020 |
| Harlm Limited | Manufacturing | 2015 |
| Harrison Fork Trucks Limited | Manufacturing | 2008 |
| Harvey Benfield Ltd | Administrative & support | 2017 |
| HAY Common Developments Limited | Construction | 2016 |
| Hayden Associates Ltd | Professional & scientific | 2024 |
| Healthcare Trust Ltd | Health & social care | 2002 |
| Heason Marine Surveyors Limited | Professional & scientific | 2025 |
| Heidra Limited | Manufacturing | 2012 |
| Helier Green Limited | Information & communication | 2008 |
| Hemmings Resources Limited | Wholesale & retail | 2003 |
| Henwood Electrical Services Limited | Construction | 2010 |
| Herald Investments International Limited | Other services | 2023 |
| Hicks Holdings SW Limited | Financial services | 2026 |
| Hidden Valley Discovery Park Ltd | Arts & recreation | 2019 |
| Hider Fuel Services Limited | Transport & logistics | 2025 |
| Higgs & Hester Limited | Manufacturing | 2024 |
| High Street CX Ltd | Administrative & support | 2026 |
| Higher Bamham Cottages Ltd | Hospitality | 2024 |
| Highfield Homes of Distinction Limited | Construction | 1985 |
| Highfield Penscombe Limited | Construction | 2007 |
| Highmoor (Kernow) Limited | Construction | 1998 |
| Hockridge and Stacey Ltd | Wholesale & retail | 2003 |
| Hogs Bottom Limited | Manufacturing | 2026 |
| Holistic Therapies Ltd | Other services | 2019 |
| Holsworthy Community Property Trust Limited | Construction | 2005 |
| Homewood Brothers Limited | Professional & scientific | 2016 |
| Homewood Designs Limited | Professional & scientific | 2026 |
| Hoopsy Eco Ltd | | 2022 |
| Horizon Home Improvements Limited | Construction | 2007 |