| Eaglesfield Paddle CE Primary Academy | Education | 2011 |
| Echappe Consulting Ltd | Professional & scientific | 2019 |
| Eco Crops Ltd | Wholesale & retail | 2023 |
| Eco Willow Briquettes Ltd | Manufacturing | 2023 |
| Eco Wood Briquettes Ltd | Wholesale & retail | 2023 |
| Ecotemp Limited | Construction | 2017 |
| Ecrs Investments Limited | Financial services | 2009 |
| Edna. M. Tuck Limited | Health & social care | 2002 |
| Ehen Industrial Services Limited | Administrative & support | 2021 |
| EJJ Contracting Limited | Construction | 2015 |
| EJT Electrical Engineering Ltd | Administrative & support | 2019 |
| Elite Brickwork Limited | Construction | 2017 |
| ELM Court Holidays Ltd | Hospitality | 2017 |
| Elterwater Press Ltd | Information & communication | 2018 |
| Emerald Engineering Cumbria Ltd | Professional & scientific | 2024 |
| Entity B Limited | Information & communication | 2012 |
| EOS Collaborative Ltd | Professional & scientific | 2022 |
| Eric Pattinson Limited | Construction | 1999 |
| Esselle Studio Ltd | Professional & scientific | 2018 |
| Eternal by C.T.Sleightholme Ltd | Hospitality | 2024 |
| Euro Seafoods Ltd | Wholesale & retail | 2021 |
| Excel Engineering Consultancy Limited | Construction | 2019 |
| Exceng (Cumbria) Limited | Administrative & support | 2012 |
| F & R Farms Limited | Agriculture & fishing | 2000 |
| F H Design Limited | Administrative & support | 2020 |
| Fabletop Games Ltd | Manufacturing | 2025 |
| Faulder Enterprise Limited | Construction | 2018 |
| Fell View Farm (Cumbria) Ltd | Agriculture & fishing | 2021 |
| Fellside Recordings Limited | Arts & recreation | 2000 |
| Fendra Limited | Professional & scientific | 2015 |
| FFP Nuclear Limited | Professional & scientific | 2025 |
| FGS Electrical Ltd | Construction | 2012 |
| Fika Coffee Cockermouth Ltd | Hospitality | 2021 |
| Fine Wood Kitchens Limited | Manufacturing | 2022 |
| Fish Direct Ltd | Wholesale & retail | 2025 |
| Fitz Park Properties Limited | Hospitality | 2013 |
| Fletcher Close Limited | Households | 1989 |
| Fletchers Croft Limited | Households | 2001 |
| Fluid Productions Ltd | Arts & recreation | 2004 |
| Fluid Realty Limited | Real estate | 2017 |
| Formula Medical Services Ltd | Health & social care | 2023 |
| FOX & Associates Consulting Limited | Information & communication | 2009 |
| FOX Family Investment Company Ltd | Real estate | 2022 |
| FOX Farming Limited | Construction | 2012 |
| FOZ 51 Limited | Construction | 2017 |
| Freckles Cumbria Limited | Hospitality | 2024 |
| Fredol Limited | Administrative & support | 2017 |
| Freedom Racing Limited | Arts & recreation | 2014 |
| Fresh KEG Limited | Professional & scientific | 2015 |
| Fresh KEG Water Ltd | Professional & scientific | 2024 |
| Fryer Engineering Limited | Administrative & support | 2015 |
| FSP Construction Services Ltd | Professional & scientific | 2013 |
| Fuelnomore Limited | Construction | 2017 |
| Func. Ltd | Wholesale & retail | 2021 |
| Fye's Executive Travel Limited | Transport & logistics | 2002 |
| Fyne Fish (Cockermouth) Ltd | Wholesale & retail | 2011 |
| G B F Keswick Limited | Other services | 2012 |
| G Care Ltd | Health & social care | 2018 |
| G D Pedros Ltd | Hospitality | 2025 |
| Garnova Ltd | Professional & scientific | 2021 |
| Garrasini Properties Ltd | Real estate | 2026 |
| Gartland Colour Technicians Limited | Other services | 2003 |
| Gary Rutland Carpets Limited | Wholesale & retail | 2004 |
| Gatesgarth Camping Limited | Hospitality | 2024 |
| GDB Civils & Utilities Ltd | Construction | 2019 |
| Gemini Project Solutions Limited | Professional & scientific | 2021 |
| Generating Better Limited | Other services | 2012 |
| GEO Environmental Engineering Limited | Construction | 2010 |
| Geoffrey Wallace Ltd. | Professional & scientific | 2013 |
| George and Meera Ltd | Hospitality | 2019 |
| Geruish Enterprises Limited | Manufacturing | 2011 |
| GHH Whitehaven Limited | Hospitality | 2012 |
| Gibbons Wealth Management Limited | Professional & scientific | 2018 |
| Gibrie's Geekery Ltd | Education | 2024 |
| Gilberdyke Ltd | Administrative & support | 2019 |
| Gili Limited | Construction | 2006 |
| Globex Nuclear Ltd | Professional & scientific | 2023 |
| Gmrf Ltd | Hospitality | 2016 |
| Gmrf Properties Limited | Real estate | 2024 |
| Gokula RV Ltd | Health & social care | 2015 |
| Gold Scaffolding Cumbria Limited | Construction | 2023 |
| Good Grieff Limited | Professional & scientific | 2022 |
| Good Methods UK Limited | Information & communication | 2023 |
| Gooder Planning MAX Limited | Wholesale & retail | 2023 |
| Gpdm Engineering Limited | Administrative & support | 2021 |
| Graeme Ives Heritage Planning Ltd | Professional & scientific | 2017 |
| Graham Land and Minerals Limited | Professional & scientific | 2021 |
| Graham Property Consultants Limited | Professional & scientific | 2006 |
| Graham Property Services NW Ltd | Construction | 2023 |
| Grahams Cumbrian Properties Ltd | Real estate | 2025 |
| Graves Mill Estate Management Company Limited(The) | Households | 1983 |
| Graygill (Cumbria) Limited | Wholesale & retail | 2013 |
| Graysonside Ltd. | Hospitality | 2000 |
| Green Installer Network Ltd | Other services | 2023 |
| Green Swallow North Limited | Professional & scientific | 2017 |
| Greenacre 5055 Limited | Professional & scientific | 2018 |
| Greenfield Developers Limited | Construction | 2014 |
| Griffiths Markets Limited | Wholesale & retail | 2024 |
| Gripping Events Ltd | Arts & recreation | 2018 |
| Grisdales Limited | Real estate | 2007 |