| Etchells Architecture Limited | Professional & scientific | 2020 |
| Etic LAB LLP | | 2016 |
| Eureka Physiocare Ltd | Wholesale & retail | 2021 |
| Eurus Energy UK Limited | Professional & scientific | 2002 |
| Evabuild Developments Ltd | Construction | 2017 |
| Evabuild Group Ltd | Financial services | 2024 |
| Evabuild Limited | Construction | 2011 |
| Evabuild Plant Ltd | Administrative & support | 2020 |
| Evabuild Surfacing Ltd | Construction | 2024 |
| Evans & Jones (Wales) Limited | Construction | 2006 |
| Evans Haulage & Grab Ltd | Transport & logistics | 2026 |
| Evans Surfacing & Landscaping Limited | Construction | 2018 |
| Exclusive Protection Security Ltd | Administrative & support | 2025 |
| Expertise Consultancy Ltd | Administrative & support | 2016 |
| Extra Hallam Limited | Arts & recreation | 2025 |
| Faber Technology Ltd | Manufacturing | 2002 |
| Fairfield Holdings (Powys) Limited | Real estate | 2024 |
| Fairway Nutrition Ltd | Manufacturing | 2023 |
| Falcon Angels Ltd | Wholesale & retail | 2024 |
| Famous Store Ltd | Wholesale & retail | 2021 |
| Fehr Investments Ltd | Real estate | 2022 |
| Fellows Horses Limited | Arts & recreation | 2019 |
| Feral Studio Architecture Ltd | Professional & scientific | 2024 |
| Finn-Francis (Investments) Ltd | Real estate | 2021 |
| Firearm Training for Film & TV Ltd | Information & communication | 2023 |
| First Contact Lenses Holdings Ltd | Financial services | 2020 |
| First Contact Lenses Limited | Administrative & support | 2010 |
| Flamecare (Powys) Limited | Energy | 2007 |
| Flood Print Limited | Manufacturing | 2013 |
| Forden Concrete Holdings Limited | Manufacturing | 2024 |
| Forden Concrete Products Limited | Manufacturing | 2012 |
| Foreveryoung Medical Aesthetics Shrewsbury Ltd | Other services | 2021 |
| Forsiteservices Ltd | Manufacturing | 2021 |
| Framez UK Limited | Financial services | 2015 |
| Frankwell GAS Limited | Construction | 2005 |
| Freedom Farm Eggs Limited | Agriculture & fishing | 2024 |
| Fresh Tracks SKI Ltd | Hospitality | 2016 |
| FU XIN House Limited | Hospitality | 2022 |
| Future Promo Ltd | Wholesale & retail | 2021 |
| G & T Evans Limited | Wholesale & retail | 2017 |
| G and a Leisure Limited | Agriculture & fishing | 2000 |
| G Jones Construction Ltd | Manufacturing | 2010 |
| G P Mountford Limited | Agriculture & fishing | 2023 |
| G. Owen & Sons Holdings Limited | Real estate | 2020 |
| G. Owen & Sons Limited | Wholesale & retail | 2008 |
| G.&J.Jerman Ltd | Agriculture & fishing | 2025 |
| G.F. Grigg Ltd | Construction | 2001 |
| Ga.Ah.Gt.Jp Jerman Ltd | Financial services | 2025 |
| Gamic Trailers Limited | Manufacturing | 2015 |
| GARDEN88 Ltd | Hospitality | 2023 |
| Gareth Jones Construction Ltd | Construction | 2024 |
| Garthlwyd Holidays Limited | Hospitality | 2019 |
| Gasm Drinks Limited | Extraterritorial | 2012 |
| Gasmark 6 (Mid-Wales) Limited | Administrative & support | 2018 |
| Gceo Limited | Financial services | 2019 |
| Genauhafod Eggs Limited | Wholesale & retail | 2012 |
| Geoff Williams Mini-Buses Limited | Transport & logistics | 2003 |
| Geraint Jones & Co Ltd | Professional & scientific | 2013 |
| GFN Parts Ltd | Wholesale & retail | 2024 |
| GH Packaging Services Limited | Professional & scientific | 2013 |
| Gilwern Limited | Real estate | 2024 |
| Glan Property Ltd | Real estate | 2024 |
| Glan-Life Children's Services Ltd | Health & social care | 2024 |
| Glandyfi Castle Limited | Hospitality | 2024 |
| Glanmiheli Farm Ltd | Agriculture & fishing | 2023 |
| Global Payroll & Recruitment Services Ltd | Administrative & support | 2013 |
| Global TA Ltd | Professional & scientific | 2024 |
| Globalpak Limited | Manufacturing | 2022 |
| Goal Developments Limited | Construction | 2022 |
| Going Green for a Living Community Land Trust Ltd | Health & social care | 2017 |
| Goldstar Powys Ltd | Transport & logistics | 2024 |
| Grademotive Limited | Real estate | 1991 |
| Graham Flooring and Cladding Limited | Construction | 2018 |
| Graham Ottaway Builders Limited | Construction | 2001 |
| Grandstand Leisure Limited | Hospitality | 2008 |
| Grants Welding and Fabrication Specialists Ltd | Manufacturing | 2013 |
| Gregory Brittain Security Consultant Ltd | Administrative & support | 2024 |
| Gregynog Enterprises Limited | Wholesale & retail | 2014 |
| Gripway UK Limited | Professional & scientific | 2012 |
| Groanings Limited | Administrative & support | 2025 |
| Grooms Garage Limited | Wholesale & retail | 2003 |
| Grooms Holdings Limited | Financial services | 2017 |
| GS Lawrence Ltd | Administrative & support | 2016 |
| GTS Holdings Limited | Professional & scientific | 2005 |
| GTS Tradeslink Limited | Administrative & support | 2006 |
| Guco Ltd | Manufacturing | 2026 |
| Gwernypwll Farm Limited | Agriculture & fishing | 2024 |
| Gwestydd Getaways Limited | Hospitality | 2023 |
| H&H Phones Limited | Wholesale & retail | 2024 |
| H&M Home Improvements Limited | Construction | 2018 |
| H. V. Bowen & Sons (Agriculture) Ltd | Wholesale & retail | 2011 |
| Hafren Dirt Bike Club Limited | Arts & recreation | 2016 |
| Hafren Fasteners | Wholesale & retail | 2012 |
| Hafren Renewable Services Ltd | Administrative & support | 2025 |
| Hafren Veterinary Group Limited | Professional & scientific | 2017 |
| Half Price Beds UK Limited | Wholesale & retail | 2013 |
| Halo Bathrooms and Interiors Ltd | Extraterritorial | 2020 |
| Hamer Build Ltd | Construction | 2011 |
| Harris Electrical (Powys) Limited | Construction | 2002 |
| Harry Hockly Motorsports Limited | Other services | 1996 |