| 24/7 Recycling Limited | Extraterritorial | 2007 |
| 46 Park Lane Ltd | Real estate | 2022 |
| 861 Ltd | Real estate | 2013 |
| A & C Aggregates Limited | Wholesale & retail | 2002 |
| A B Rogers & SON Limited | Construction | 1997 |
| A Grade Carpentry Ltd | Manufacturing | 2025 |
| A Million Dreams Ltd | Health & social care | 2018 |
| Ac-Dc (Pembs) Ltd | Construction | 2013 |
| Ac-Dc Homes Ltd | Real estate | 2021 |
| Adunlop Holdings Ltd | Financial services | 2022 |
| AGT Workboats Ltd | Transport & logistics | 2025 |
| Aldern Limited | Agriculture & fishing | 2017 |
| Alistair Mcivor Limited | Manufacturing | 2015 |
| Alma Wines Ltd | Wholesale & retail | 2026 |
| Alvechurch Investments Limited | Financial services | 2003 |
| Amroth Glamping Ltd | Hospitality | 2025 |
| Anchor Well Ltd | Energy | 2013 |
| Andrew Price Academy Ltd | Education | 2006 |
| ANN Stephens & Company Limited | Professional & scientific | 2001 |
| Annwn CYF | Hospitality | 2020 |
| Anonymoose Ltd | Wholesale & retail | 2025 |
| ANY Driver Limited | Education | 2007 |
| Applied Biomechanics Ltd | Wholesale & retail | 2006 |
| Arkgate Consulting Ltd | Professional & scientific | 2016 |
| Ashburton Grove Management Company Limited | Real estate | 2005 |
| Asme- Accounting Services Made Easy Limited | Professional & scientific | 2016 |
| Aspire Growth Limited | Agriculture & fishing | 2018 |
| Astons Bakehouse Ltd | Manufacturing | 2021 |
| At&J Llewellyn Limited | Real estate | 2007 |
| AUB Properties Ltd | Real estate | 2026 |
| AUB Property Ltd | Real estate | 2025 |
| AW Business Partners Limited | Professional & scientific | 2020 |
| Barney & Freddie Ltd | Real estate | 2025 |
| Beechey Sanders Properties Limited | Real estate | 2022 |
| Belt Transport Limited | Transport & logistics | 2001 |
| Bess Installations UK Ltd | Professional & scientific | 2025 |
| Best West Gourmet Ltd | Hospitality | 2019 |
| Bevisible (Consultancy) Limited | Professional & scientific | 2025 |
| BIO Habitat Ltd | Extraterritorial | 2011 |
| BIO NG Ltd | Extraterritorial | 2011 |
| Birribi Ltd | Health & social care | 2014 |
| Blaencilgoed Enterprises Limited | Energy | 2013 |
| Blaenmarlais Care Limited | Health & social care | 2010 |
| Blue Cliff 3 Limited | Professional & scientific | 2017 |
| Blue Horizons Coastal Adventures CIC | Other services | 2022 |
| Blue Light Cctv Limited | Administrative & support | 2019 |
| Bluestone Engineering Group Ltd | Professional & scientific | 2024 |
| Bluestone Resorts Limited | Hospitality | 2009 |
| Bluestone Resorts Wales Limited | Professional & scientific | 2016 |
| Bluestone Welding & Fabrication Limited | Manufacturing | 2023 |
| Border Performance Ltd | Arts & recreation | 2026 |
| Boring Design Studio Ltd | Professional & scientific | 2026 |
| Boss Your Socials Ltd | Information & communication | 2022 |
| Bowen Mixed Farming Ltd | Agriculture & fishing | 2023 |
| Broadlands Enterprise Park Ltd. | Real estate | 2004 |
| BTL PM Ltd | Professional & scientific | 2023 |
| Caine Joinery Limited | Manufacturing | 2024 |
| Calco 3D Ltd | Manufacturing | 2025 |
| Canaston Waterside Lodges Limited | Hospitality | 2021 |
| Canolfan Bethlehem CYF | Education | 2024 |
| Cartrefi Marchog Ltd | Real estate | 2021 |
| Castle Hill (Narberth) Management Company Limited | Hospitality | 2002 |
| Catale Engineering Ltd | Professional & scientific | 2013 |
| Celtic Homes (Wales) Limited | Extraterritorial | 2001 |
| Celtic Homes and Builders Limited | Construction | 2003 |
| Celtic Sea Watersports Ltd | Arts & recreation | 2020 |
| Celtic Shire Property Ltd | Real estate | 2002 |
| Cemented Ltd | Professional & scientific | 2024 |
| Cheung and Family Properties Limited | Financial services | 2025 |
| Chicos Pizza Kebab Ltd | Hospitality | 2025 |
| Chief Property Developments Limited | Construction | 2021 |
| CME Insulated Construction Limited | Construction | 2002 |
| Coast to Coast Company Secretary Limited | Professional & scientific | 2015 |
| Coastal View Cottages Ltd | Hospitality | 2025 |
| Coastline Campervans Limited | Administrative & support | 2021 |
| Coco Bay Tanning Ltd | Other services | 2024 |
| Coedcanlas Ltd | Manufacturing | 2025 |
| COL & KAT Hoult Ltd | Arts & recreation | 2022 |
| Cole Farms Ltd | Agriculture & fishing | 2020 |
| COMMUNIC8 Hire Limited | Information & communication | 2016 |
| Community Energy in Pembrokeshire Community Interest Company | Other services | 2011 |
| Conor O'Sullivan Engineering Ltd | Professional & scientific | 2024 |
| Corby Canvas Products Limited | Manufacturing | 2008 |
| Cottons Creche Limited | Agriculture & fishing | 2025 |
| Cotts Equine Ltd | Professional & scientific | 2004 |
| Course Hill Fuel Depot Limited | Wholesale & retail | 1998 |
| Coxlake Farm Leisure Ltd | Other services | 2022 |
| Coxlake Farm Limited | Agriculture & fishing | 2004 |
| Crunwere Close Management Company Ltd | Households | 2025 |
| D & K Phillips Transport Ltd | Transport & logistics | 2018 |
| David and Amanda Judd LLP | | 2024 |
| Ddraig Luxury Saunas Ltd | Arts & recreation | 2026 |
| DM Griffiths Concrete Pumping Ltd | Construction | 2022 |
| Douglas Mechanical Engineering Ltd | Professional & scientific | 2019 |
| Dragon Charging Limited | Wholesale & retail | 2015 |
| DS Maritime Limited | Professional & scientific | 2023 |
| Dyer-Headlam Limited | Transport & logistics | 2019 |
| Dyfed Marine Training Limited | Education | 2016 |
| Dyfed Recruitment Services Ltd | Administrative & support | 2025 |
| Dylunio-Mep Ltd | Professional & scientific | 2025 |