| Empire Construction (Southern) Ltd | Construction | 2019 |
| Engage Works Limited | Information & communication | 2005 |
| Engine House Digital Ltd | Information & communication | 2014 |
| England Roofing Contractors Limited | Construction | 2017 |
| Enys Associates Ltd | Hospitality | 2022 |
| Equantiis Limited | Information & communication | 2013 |
| Eryma Estates Limited | Real estate | 2017 |
| Espemar Fisheries Limited | Agriculture & fishing | 2011 |
| Ethical Luxury Ltd | Manufacturing | 2019 |
| Eventopedia UK Limited | Administrative & support | 2014 |
| Evident Studio Limited | Information & communication | 2012 |
| Evolution Personal and Corporate Development Limited | Professional & scientific | 2006 |
| Exco Fire and Safety Control Limited | Construction | 1962 |
| Excursions Travel Global Ltd | Administrative & support | 2024 |
| Expanded Polystyrene Services Cornwall Limited | Manufacturing | 2025 |
| Exphysem Limited | Health & social care | 2022 |
| F & F Construction Services Ltd | Construction | 2020 |
| FAB Advisory Limited | Professional & scientific | 2009 |
| Falmouth & Penryn Carpentry Ltd | Construction | 2016 |
| Falmouth & Penryn Funeral Directors Ltd | Other services | 2023 |
| Falmouth Cleaning & Property Management Limited | Other services | 2019 |
| Falmouth Divers Limited | Professional & scientific | 1989 |
| Falmouth Estates Limited | Real estate | 1997 |
| Falmouth Exeter Plus | Education | 2004 |
| Falmouth Food Co-Op CIC | Agriculture & fishing | 2019 |
| Falmouth Garages Ltd | Wholesale & retail | 1994 |
| Falmouth Oven Cleaning Ltd | Administrative & support | 2021 |
| Falmouth Yacht Brokers Limited | Wholesale & retail | 2002 |
| Fashion Retail Outlet Cornwall Ltd | Wholesale & retail | 2023 |
| Filmily Limited | Information & communication | 2017 |
| Finno Films Limited | Information & communication | 2025 |
| Firth Orthopaedics Ltd | Health & social care | 2021 |
| Fish Factory Arts CIC | Wholesale & retail | 2017 |
| Fishy Filaments Limited | Manufacturing | 2017 |
| Fizz Marketing Ltd | Extraterritorial | 2023 |
| Flatt Marine Ltd | Agriculture & fishing | 2019 |
| Flicka Tea & Gifts Ltd | Wholesale & retail | 2021 |
| Flints Court Management Company Limited | Households | 2007 |
| Food Troops C.I.C. | Hospitality | 2019 |
| Foracre Limited | Real estate | 2019 |
| Foreshore Marine Ltd | Manufacturing | 2024 |
| Formation Research Ltd | Professional & scientific | 2025 |
| Foster GEO Solutions Ltd | Professional & scientific | 2026 |
| Foundation for Life Healthcare Limited | Health & social care | 2016 |
| Fountain Court Management Company (Falmouth) Limited | Households | 2011 |
| Four Front Events Management Ltd | Administrative & support | 2024 |
| Fourman Family Brewery Ltd | Manufacturing | 2025 |
| FOX Consulting & Digital Services Ltd | Professional & scientific | 2024 |
| Frances Crow Architect Limited | Professional & scientific | 2022 |
| Fraser Contracting SW Ltd | Administrative & support | 2024 |
| Fudged Enterprises Ltd | Arts & recreation | 2007 |
| FYB Marine Engineering Ltd | Manufacturing | 2024 |
| FYB Marine Holdings Limited | Financial services | 2023 |
| Fynndir Consulting Limited | Professional & scientific | 2021 |
| G F Construction (SW) Ltd | Construction | 2013 |
| G.A.Services Surrey Ltd | Construction | 2018 |
| G20 GAS Services Limited | Construction | 2018 |
| Gannel Developments Limited | Construction | 2007 |
| Gavin Harris Marketing Consultancy Ltd | Professional & scientific | 2025 |
| GB Cabs Ltd | Transport & logistics | 2026 |
| Gendall Design Limited | Professional & scientific | 2000 |
| Geor.A.T's Limited | Professional & scientific | 2015 |
| GET ME to Cornwall Ltd | Real estate | 2022 |
| Getdent Ltd | Manufacturing | 2021 |
| Gjmp Chiropractic Limited | Health & social care | 2019 |
| Glebe Parc Management Company Ltd | Households | 2020 |
| Global Mine Design Ltd | Professional & scientific | 2013 |
| Glow Lash & Brow Bar Ltd | Other services | 2019 |
| Gluvian House Management Company Limited | Households | 2018 |
| Gold Crest Holidays Limited | Administrative & support | 1990 |
| Goldensturdy Limited | Administrative & support | 1987 |
| Golla Barn Estates Limited | Real estate | 2014 |
| Good and Faithful UN- Limited | Health & social care | 2010 |
| Good, Form & Spectacle Limited | Professional & scientific | 2015 |
| Goonown Growers Community Interest Company | Agriculture & fishing | 2019 |
| Granite Coast Property Group Limited | Construction | 2026 |
| Gray Construction Services Limited | Professional & scientific | 2024 |
| Greater Life Systems Ltd | Information & communication | 2022 |
| Green Frame Carpentry Ltd | Manufacturing | 2018 |
| Green Spaces (Cornwall) Ltd | Hospitality | 2023 |
| Greenfields Health Limited | Health & social care | 2013 |
| Greenstone Cornwall Ltd | Construction | 2019 |
| Greenwave Interactive Limited | Information & communication | 2018 |
| Greenwaves Management Company Limited | Households | 2004 |
| Greythorne Consulting Limited | Professional & scientific | 2019 |
| Griggs Law Limited | Professional & scientific | 2025 |
| Grim Sweepers Metal Detecting C.I.C. | Health & social care | 2020 |
| Grimes Property Limited | Real estate | 2018 |
| Grow Cornwall CIC | Education | 2022 |
| GRP Connections Ltd | Administrative & support | 2020 |
| Grph Southwest Ltd | Construction | 2018 |
| Gryphon Hospitality Limited | Hospitality | 2010 |
| GTR Property Ltd | Real estate | 2013 |
| Guava AI Limited | Information & communication | 2013 |
| Gulkara Limited | Information & communication | 2019 |
| GW Arts C.I.C. | Education | 2017 |
| Gw&Co. Ltd | Professional & scientific | 2019 |
| Gwell Fordh Ltd | Professional & scientific | 2022 |
| Gwelli Ltd | Real estate | 2022 |
| H Arthurs Consulting Ltd | Professional & scientific | 2016 |