| First Choice Move Ltd | Real estate | 2011 |
| First Class Morfos Ltd | Other services | 2019 |
| First Class Roofing (Cumberland) Limited | Construction | 2026 |
| First Image Signs Limited | Administrative & support | 2004 |
| Firth View Consulting Limited | Professional & scientific | 2024 |
| Firtrees (Great Clifton) Limited | Real estate | 2003 |
| Fishers Rock Ltd | Hospitality | 2024 |
| Five Peaks Investments Limited | Real estate | 2026 |
| Flashback Toys Ltd | Wholesale & retail | 2017 |
| Flawed Ltd | Manufacturing | 2020 |
| Flip Products Limited | Wholesale & retail | 2018 |
| Flourish Forward Education Ltd | Education | 2025 |
| Flourishing Communities Limited | Financial services | 2019 |
| Fluidforce Engineering Ltd | Professional & scientific | 2021 |
| Focused Therapies CIC | Other services | 2024 |
| Foil & INK Limited | Professional & scientific | 2023 |
| Football FUN Factory (Community 036) Ltd | Arts & recreation | 2021 |
| Forestry and Agricultural Restoration Ltd | Water & waste | 2016 |
| Fortbox Ltd | Transport & logistics | 2025 |
| Fortitude Investment Properties Ltd | Real estate | 2025 |
| Fountain Prep Limited | Information & communication | 2026 |
| Fowler Bros. (Cumbria) Limited | Construction | 2003 |
| Foxcroft Electrical Ltd | Construction | 2010 |
| Fragoso Limited | Health & social care | 2012 |
| Frank Advice Ltd | Information & communication | 2026 |
| Frank Peel Limited | Wholesale & retail | 2001 |
| Freedom to Speak Ltd | Professional & scientific | 2021 |
| Freefone Taxis Ltd | Transport & logistics | 2017 |
| Frontier Shop Equipment Ltd | Wholesale & retail | 2023 |
| Fuelshot Coffee Ltd | Manufacturing | 2025 |
| Fultons (Properties) Limited | Manufacturing | 2006 |
| Fultons Limited | Wholesale & retail | 2001 |
| G & a M Lawson Limited | Water & waste | 1992 |
| G O Support Services Limited | Wholesale & retail | 2011 |
| G Squared Delivery Ltd | Professional & scientific | 2024 |
| G Squared Holdings Ltd | Financial services | 2024 |
| G Squared Resourcing Ltd | Administrative & support | 2025 |
| G T E Motors Limited | Wholesale & retail | 2017 |
| G.A. Wilson Plastering Contractors Limited | Construction | 2004 |
| Gaije Developments Ltd | Real estate | 2021 |
| Galloping Horse Limited | Hospitality | 2013 |
| Game of Thorns Ltd | Administrative & support | 2015 |
| GAN Group Limited | Professional & scientific | 2025 |
| Garage 24 Ltd | Wholesale & retail | 2024 |
| Garratt Holdings Ltd | Financial services | 2021 |
| Gary Charlesworth Financial Services Limited | Financial services | 2011 |
| Gasgale Ltd | Transport & logistics | 2026 |
| Gate Locum Services Ltd | Health & social care | 2022 |
| GBW Consultants Ltd | Professional & scientific | 2024 |
| GDA Auto Body Repairs Limited | Wholesale & retail | 2003 |
| GDJ Group Limited | Financial services | 2023 |
| GDJ Properties Limited | Real estate | 2015 |
| GEE Gee's Services Limited | Administrative & support | 2017 |
| GEK (Cumbria) Ltd | Other services | 2016 |
| Genesis Home Appliances Limited | Wholesale & retail | 2003 |
| Genesis ICT Ltd | Administrative & support | 2014 |
| Genii Engineering & Technology Training Limited | Education | 1999 |
| Geoff Nevinson Limited | Construction | 2003 |
| GET Gadget Ltd | Wholesale & retail | 2024 |
| GF Nuclear Decommissioning Ltd | Administrative & support | 2023 |
| Gigi Luisa Ltd | Hospitality | 2026 |
| Gilgarran Park Roadway Limited | Real estate | 2014 |
| Gillgrass Holdings Limited | Financial services | 2026 |
| Gleeson-Robinson Plumbing & Heating Ltd | Construction | 2023 |
| Glendinning Properties Limited | Real estate | 2001 |
| GLT Technical Services Ltd | Administrative & support | 2006 |
| GO2E Ltd | Professional & scientific | 2018 |
| Godsonejiofor Medical Services Ltd | Wholesale & retail | 2025 |
| GONE2GROUND (Cumbria) Ltd | Administrative & support | 2024 |
| Goodwin Roofing Limited | Construction | 2003 |
| Gourmet Inns Limited | Hospitality | 2020 |
| Grab & Go Ltd | Wholesale & retail | 2026 |
| Graeme Mclaughlin Limited | Administrative & support | 2015 |
| Graham Best Engineering Ltd | Construction | 2014 |
| Grahams Travel Service Limited | Administrative & support | 2003 |
| Graves & Telfer Construction Ltd | Construction | 2024 |
| Great British Motor Shows Limited | Administrative & support | 2020 |
| Greenedge Maintenance Ltd | Manufacturing | 2025 |
| Greenhow Associates Ltd | Financial services | 2019 |
| Greenrise 2024 Ltd | Administrative & support | 2024 |
| Greenview Construction (Cumbria) Limited | Construction | 2012 |
| Greta View Ltd | Real estate | 2021 |
| Grove Circular Ltd | Professional & scientific | 2022 |
| Grove House Gallery Limited | Professional & scientific | 2002 |
| GRW Engineering (Cumbria) Limited | Professional & scientific | 2023 |
| GS Services Cumbria Ltd | Construction | 2023 |
| GWR Insulation Services Ltd | Construction | 2026 |
| Gymdoll Ltd | Wholesale & retail | 2024 |
| H Stamper Services Ltd | Administrative & support | 2016 |
| H&L Cumbria Limited | Construction | 2018 |
| Haighs Workington Limited | Wholesale & retail | 1986 |
| Hall Carleton Limited | Professional & scientific | 2009 |
| Hall Properties (Cumbria) Ltd | Real estate | 2014 |
| Hallams (Cumbria) Limited | Other services | 2010 |
| Hallams West Ltd | Construction | 2015 |
| Handy Holdings Limited | Financial services | 2015 |
| Hansen Associates Ltd | Professional & scientific | 2016 |
| Harbourside Care Ltd | Health & social care | 2024 |
| Harmony Associates Ltd | Education | 2011 |
| Harrington Control Limited | Information & communication | 1993 |