| 7 Mile Forest Drive Limited | Agriculture & fishing | 2026 |
| A & I (Davies Bearings) Limited | Wholesale & retail | 2002 |
| A Luxury Collection Limited | Wholesale & retail | 2025 |
| Achub Gwaith Copr/Save Copper Works CIC | Professional & scientific | 2025 |
| AL Dali Food Ltd | Hospitality | 2026 |
| Amber Skips Limited | Administrative & support | 2010 |
| Amcanu Ltd | Manufacturing | 2002 |
| Amiben Holdings Ltd | Financial services | 2021 |
| Andrew Marsh Motorcycles Ltd | Wholesale & retail | 2018 |
| Anturfit Ltd | Arts & recreation | 2019 |
| ASG Engineering Solutions Ltd | Wholesale & retail | 2022 |
| ASG Innovations Limited | Professional & scientific | 2013 |
| Ashburnham Golf Company,Limited | Arts & recreation | 1923 |
| Bay Ecology Ltd | Professional & scientific | 2025 |
| Beacon House Property Management Limited | Real estate | 2012 |
| BEK Trading Limited | Wholesale & retail | 2014 |
| Black OX Properties Ltd | Hospitality | 2025 |
| Black Point Shelfish Ltd | Agriculture & fishing | 2020 |
| Blue Whale Productions Ltd | Professional & scientific | 2025 |
| Board Riding Development Limited | Arts & recreation | 2008 |
| Boardability CIC | Arts & recreation | 2014 |
| BOILER247 Ltd | Professional & scientific | 2019 |
| Bowen's Chippy (Pembrey) Limited | Hospitality | 2024 |
| Brechdan Ltd | Hospitality | 2025 |
| Britton Golf Limited | Arts & recreation | 2017 |
| Brynhyfryd Clinical and Consultancy Ltd | Health & social care | 2023 |
| Burry Port AFC Ltd | Arts & recreation | 2013 |
| Burry Port Marine Services Ltd | Manufacturing | 2021 |
| Burry Port RFC Ltd | Arts & recreation | 2023 |
| Burry Taste Limited | Hospitality | 2023 |
| Carmarthenshire Cottages Limited | Hospitality | 2021 |
| Celtic Electrics Ltd | Construction | 2025 |
| Chris Hurley Media Limited | Information & communication | 2016 |
| CJ Motors & MOT Centre Ltd. | Wholesale & retail | 2017 |
| Cloudplanet UK Ltd | Information & communication | 2016 |
| Core Recovery Ltd | Arts & recreation | 2025 |
| Cozy Coffee Ltd | Hospitality | 2023 |
| CWM Eynon Property Limited | Real estate | 2014 |
| CWM Ride Limited | Wholesale & retail | 2023 |
| Cwrt Lando Apartments Property Management Company Limited | Real estate | 2013 |
| Daisy Chain Consulting Limited | Other services | 2013 |
| Daisy Tots Childcare Limited | Health & social care | 2024 |
| Davies and Halpin Building Services Ltd | Construction | 2022 |
| DD Mechanical Ltd | Construction | 2013 |
| Design Vicenza Limited | Wholesale & retail | 2006 |
| Discount Demons UK Ltd | Wholesale & retail | 2025 |
| DLF Property Ltd | Real estate | 2010 |
| Duncan Harman Ltd | Professional & scientific | 2018 |
| DW Offshore Renewables Ltd | Professional & scientific | 2023 |
| E & E Jones Limited | Extraterritorial | 2016 |
| Echoes Ultrasound Clinic Ltd | Health & social care | 2026 |
| EGO Hair Salon Ltd | Other services | 2024 |
| EKD Installations Ltd | Manufacturing | 2013 |
| ELK Skip Hire Ltd | Water & waste | 2021 |
| Embervale Ltd | Education | 2025 |
| Euryn Jones Plant Repairs Limited | Construction | 2026 |
| Evans Home Improvements and Renovations Ltd | Construction | 2024 |
| EYE Care & EYE Wear Co. Ltd | Wholesale & retail | 2019 |
| Faithful Gems Ltd | Administrative & support | 2019 |
| Ffynnonwen Remedies Limited | Wholesale & retail | 2018 |
| First Foundations Nursery Limited | Health & social care | 2009 |
| Fontenay Aesthetics Limited | Other services | 2018 |
| Forrester Lowe Ltd | Professional & scientific | 2020 |
| FPO Group Ltd | Financial services | 2025 |
| Fruit Salad Retro Limited | Wholesale & retail | 2018 |
| G I Carpets & Flooring Limited | Wholesale & retail | 2010 |
| Green for Go Ltd | Education | 2003 |
| Green Green Graph of Home Ltd | Professional & scientific | 2022 |
| Green Marine Surveys Ltd | Wholesale & retail | 2017 |
| Green's Plumbing Ltd | Construction | 2025 |
| Greenleaf Property Management Ltd | Construction | 2017 |
| Griffin Veterinary Services Limited | Real estate | 2005 |
| GSG Contracts Limited | Construction | 2007 |
| GSO Technologies Ltd | Manufacturing | 2019 |
| Gwalia Life Science Consulting Limited | Professional & scientific | 2013 |
| Hamilton and Miller Properties Limited | Real estate | 2016 |
| Hatchet Properties Ltd | Real estate | 2023 |
| Henrys Motors Ltd | Wholesale & retail | 2023 |
| Heyworker Construction Ltd | Construction | 2019 |
| High Calibre Roofing & Carpentry Limited | Construction | 2025 |
| Holutions Ltd | Health & social care | 2011 |
| Hughes&Peters Building & Maintenance Contractors Ltd | Construction | 2025 |
| Huntingdon Fusion Techniques Limited | Manufacturing | 1976 |
| HUW Davies Associates Limited | Professional & scientific | 2012 |
| Idrafn Property Investment Ltd | Real estate | 2020 |
| IIE Electrical Ltd | Construction | 2021 |
| ILD Cegin Lean Kitchen CYF | Hospitality | 2020 |
| ISA Deli Limited | Hospitality | 2017 |
| Isgraig Limited | Wholesale & retail | 1991 |
| IV3 Properties Ltd | Real estate | 2019 |
| Jineli Ltd | Manufacturing | 2011 |
| John Jones Management Limited | Real estate | 2016 |
| Joy Skincare Ltd | Wholesale & retail | 2026 |
| K & W Motors Limited | Wholesale & retail | 2005 |
| KAI Super Palace Limited | Hospitality | 2024 |
| Kevin Lloyd Projects Ltd | Construction | 2023 |
| KP Welding Limited | Manufacturing | 2019 |
| Kymertech Limited | Professional & scientific | 2019 |
| LAD Investments Ltd | Construction | 2021 |
| LAD Property Developments Ltd | Real estate | 2018 |