| Elim Court Limited | Real estate | 2023 |
| Elite Services in Property Ltd | Other services | 2018 |
| Ellor (Management) Limited | Households | 1976 |
| Equilibrium Engineering Ltd | Professional & scientific | 2026 |
| Essential Beauty Exmouth Limited | Other services | 2023 |
| Estética Healthcare Limited | Health & social care | 2017 |
| EU Legal Group Limited | Professional & scientific | 2024 |
| Evolution Flex Ltd | Real estate | 2024 |
| Exdm Ltd | Manufacturing | 2019 |
| Executive Taxi Services Ltd | Transport & logistics | 2013 |
| Exeter Liquid Screeders Ltd | Construction | 2025 |
| Exeter Residential Property Limited | Households | 2011 |
| Eypes Mouth Chalet Park Management Company Limited | Real estate | 2004 |
| Fairway Petroleum Exploration Consultants Limited | Professional & scientific | 1999 |
| Farrant Court Management Limited | Households | 1988 |
| Farway Common Airfield Limited | Extraterritorial | 2022 |
| FAT COW Catering Ltd | Hospitality | 2019 |
| Fellows Hairdressing Limited | Other services | 2001 |
| Fernwood Gardens and Estates Ltd | Administrative & support | 2024 |
| Fields of Sidmouth Holdings Limited | Real estate | 2011 |
| Fields Property (Sidmouth) Limited | Real estate | 2010 |
| Finglemoor Ltd | Professional & scientific | 2011 |
| Five Streams Limited | Administrative & support | 2009 |
| FJH Beauty Limited | Other services | 2023 |
| Fledgling Homes Limited | Construction | 2017 |
| Fleet River Ventures Ltd. | Professional & scientific | 2014 |
| Fleming Securities Limited | Extraterritorial | 2000 |
| Fords South West Limited | Construction | 2016 |
| Forrest Investments Limited | Other services | 1987 |
| Fort Management Company (Sidmouth) Limited | Households | 1992 |
| Fortfield Bar & Catering Ltd | Hospitality | 2025 |
| Fortfield Chambers Limited | Households | 2007 |
| Fortfield Events Limited | Health & social care | 2015 |
| Fortfield Lawn Management Company Limited | Households | 2004 |
| Fortfield Management Limited | Administrative & support | 1999 |
| Fortfield Terrace (2000) Management Company Limited | Households | 2000 |
| FORTIS28 Ltd | Information & communication | 2025 |
| Foundation for East African Development and Education F.E.A.D.E. Ltd | Education | 2007 |
| Four Elms Fruit Farm Limited | Manufacturing | 2002 |
| Four Elms Juice Limited | Manufacturing | 2014 |
| FTM Investments Ltd | Real estate | 2025 |
| Future BE Limited | Information & communication | 2016 |
| G a Electrical Contractor (South West) Limited | Construction | 2010 |
| G. J. Bess & Sons Limited | Construction | 2003 |
| Garden and Countryside Maintenance Limited | Administrative & support | 2017 |
| Garden KIT Limited | Wholesale & retail | 2002 |
| Gareth R Guck Ltd | Construction | 2014 |
| Gatesfield House (Lyme Regis) Management Company Limited | Households | 1984 |
| Geoffrey Worthington Heritage Company Limited | Other services | 2012 |
| Gliddon & SON LLP | | 2004 |
| Goldtablets Limited | Wholesale & retail | 2023 |
| Goodman Loss Prevention and Risk Consultants Limited | Administrative & support | 2004 |
| Graham Ward & Sons Limited | Construction | 2006 |
| Grangelands Management Company Limited | Households | 1986 |
| Green Mount Fields Company Ltd | Households | 2014 |
| Grey Turret Maintenance Company Limited | Hospitality | 1987 |
| Grow Food and Drink Ltd | Professional & scientific | 2022 |
| GUY Butcher Limited | Construction | 2004 |
| H Douglas Holdings Ltd | Real estate | 2023 |
| Hall & Company (Devon) Limited | Wholesale & retail | 2003 |
| Harpford Engineering Limited | Professional & scientific | 2018 |
| Harri's of Sidmouth Ltd | Wholesale & retail | 2018 |
| HAT and MEG Ltd | Wholesale & retail | 2004 |
| Haus & HOF Ltd | Professional & scientific | 2017 |
| Haus & HOF Procurement Ltd | Wholesale & retail | 2021 |
| Hayne Admin Ltd | Administrative & support | 2023 |
| Hayne Parkland Limited | Households | 2001 |
| Haywood Styles Ltd | Construction | 2013 |
| Health & Home Solutions Ltd | Wholesale & retail | 2018 |
| Healthcair Commissioning and Validation Services Ltd | Energy | 2023 |
| Heatherby Management Company (Sidmouth) Limited | Real estate | 1998 |
| Helmgate Limited | Transport & logistics | 1987 |
| Henderson ML Limited | Manufacturing | 2012 |
| Henry Gunn Associates Ltd | Administrative & support | 2020 |
| Heritage Grange (Property Management Company) Limited | Households | 2007 |
| Herts Lecois Limited | Wholesale & retail | 2008 |
| Hoarding Disorders UK Community Interest Company | Other services | 2014 |
| Holeshot Competitions Ltd | Arts & recreation | 2026 |
| Holistique Beauty Ltd | Other services | 2025 |
| Holland &Hyde Co Limited | Real estate | 2006 |
| Holmcroft Property Management Ltd | Households | 2017 |
| Hungry EYE Limited | Information & communication | 2000 |
| Hunt Drappier LLP | | 2013 |
| Hydratec Engineering Limited | Construction | 2011 |
| IAN Paul Simpson Ltd | Professional & scientific | 2024 |
| Image ME Limited | Professional & scientific | 2006 |
| Imagine Education Ltd | Education | 2004 |
| Immersion Enterprises Ltd | Education | 2026 |
| IN a Pickle Services CIC | Health & social care | 2024 |
| Inglenook Hospitality Ltd | Hospitality | 2023 |
| Inish Coaching Ltd | Professional & scientific | 2023 |
| Insitu Business Intelligence Limited | Administrative & support | 2019 |
| Isca Occupational Health Ltd | Health & social care | 2025 |
| Iscape Solutions Limited | Information & communication | 2007 |
| Islay Food Drink Ltd | Manufacturing | 2022 |
| Italian Bistro Limited | Hospitality | 2024 |
| J & C Groundworks Ltd | Construction | 2020 |
| J & M Builders (South West) Ltd | Construction | 2015 |
| J G Engineering (South West) Limited | Construction | 2005 |
| J Mcdonald Ltd | Administrative & support | 2013 |