| 1-12 the Clicketts Freehold Limited | Households | 2025 |
| 10B Ltd | Professional & scientific | 2024 |
| 4 Crackwell Street Management Company Limited | Households | 2019 |
| A & O Duckett & Co Limited | Other services | 2026 |
| A1 Bookkeeping & Accountancy Services Ltd | Professional & scientific | 2015 |
| Absolute Practice Ltd | Health & social care | 2016 |
| ACT NOW Academy Limited | Professional & scientific | 2023 |
| ACT Sustainably Group Holdings Limited | Financial services | 2025 |
| ACT Sustainably Limited | Professional & scientific | 2005 |
| ACT Sustainably SME Limited | Professional & scientific | 2025 |
| Active Agent Limited | Information & communication | 2010 |
| Afalon Ltd | Administrative & support | 2011 |
| Airedale Financial Limited | Financial services | 2023 |
| Airedale Fuelcards Ltd | Administrative & support | 2026 |
| AL Hill Consulting Limited | Professional & scientific | 2022 |
| Albion Property Management Limited | Hospitality | 2006 |
| Albion Tenby Limited | Administrative & support | 1979 |
| Allen Plant Ltd | Administrative & support | 2009 |
| Allport Properties Ltd | Construction | 2026 |
| Allport Trading Ltd | Wholesale & retail | 2025 |
| Amrie Aesthetics Limited | Other services | 2023 |
| Amriver Limited | Agriculture & fishing | 2023 |
| AMY Pugh True Potential Ltd | Financial services | 2025 |
| Andicon Limited | Hospitality | 2005 |
| Anglodefine Limited | Construction | 2000 |
| Appaloosa Trading Limited | Wholesale & retail | 2021 |
| Apricus by Nature Limited | Health & social care | 2023 |
| Arcadia House Management Company Limited | Households | 2004 |
| Arches Kebab Limited | Hospitality | 2018 |
| Archraft Design Ltd | Professional & scientific | 2025 |
| Arden Peat Limited | Real estate | 1971 |
| Argent Architects Ltd | Professional & scientific | 1953 |
| AS Edge Investments Limited | Financial services | 2025 |
| Ascend (Cymru) Ltd | Real estate | 2000 |
| Ashelford Investments Limited | Real estate | 1992 |
| Ashley House Tenby (Management) Limited | Households | 1983 |
| Ashley Richards Limited | Professional & scientific | 2017 |
| Asmar Enterprises Limited | Professional & scientific | 1996 |
| Aspect Leisure Limited | Wholesale & retail | 2011 |
| Atlantic Edge Shellfish Ltd | Wholesale & retail | 2022 |
| Autism Bristol Ltd | Other services | 2013 |
| Ayers Electrical Limited | Construction | 2022 |
| Baby Swimming Central South East LLP | | 2016 |
| Bakes by Michelle Limited | Manufacturing | 2020 |
| Baobab Agri Business Limited | Professional & scientific | 2016 |
| Barrington House (Tenby) Limited | Households | 1997 |
| Bassett Crockford Holdings Ltd | Financial services | 2023 |
| Beauchief House Management Company Limited | Real estate | 2014 |
| Beaufort Financial (Pembs) Limited | Financial services | 2020 |
| Beavers Retreat Ltd | Hospitality | 2017 |
| Beckinsale Developments Limited | Real estate | 2025 |
| Becks Bay Glamping Limited | Hospitality | 2021 |
| Beddoes Court (Saundersfoot) Limited | Real estate | 1994 |
| Belgrave Hotel (Tenby) Limited(The) | Hospitality | 1961 |
| Belvedere Care Limited | Health & social care | 1994 |
| Benroc Engineering Limited | Professional & scientific | 2023 |
| Beyond Theday Ltd | Wholesale & retail | 2026 |
| Bierwood Limited | Real estate | 2002 |
| Biovit Ltd | Manufacturing | 2023 |
| Birt & Co (Management) Limited | Real estate | 2004 |
| Birt & Co (Sales and Estates) Ltd | Real estate | 2023 |
| Boissevain-Lewis Ltd | Hospitality | 2024 |
| Boot of Lydstep Limited | Administrative & support | 2003 |
| Brainstorm Education Limited | Wholesale & retail | 2005 |
| Branleigh Estates Limited | Construction | 1996 |
| Brewhouse Limited | Hospitality | 2001 |
| Broadfield Farm Limited | Hospitality | 2023 |
| Broadmead Hotel Limited Partnership | | 2009 |
| Brothers 23 Ltd | Hospitality | 2023 |
| Bubbleton Farm Produce Ltd | Agriculture & fishing | 2015 |
| Buccaneer Sun Inn Limited | Construction | 2011 |
| Bull Moose Productions Ltd | Information & communication | 2024 |
| Burgess Meadows Management Company Limited | Households | 1993 |
| C4W Ltd | Wholesale & retail | 2012 |
| Caldey Construction Ltd | Construction | 2018 |
| Caldey Island Estate Company Limited | Manufacturing | 1971 |
| Caldey View (Tenby) Limited | Hospitality | 2011 |
| Captain Cymru Foundation Limited | Arts & recreation | 2016 |
| Captain's Walk (Services) Limited | Households | 1970 |
| Caravancloud Limited | Information & communication | 2019 |
| Carew Construction Limited | Construction | 2001 |
| Carew Inn Limited | Hospitality | 2003 |
| Cariad Designs Ltd | Professional & scientific | 2025 |
| Cariads Pembrokeshire Ltd | Wholesale & retail | 2024 |
| Catt Engineering Consultants Limited | Professional & scientific | 2015 |
| Cawdor Court Company Limited | Real estate | 2011 |
| Celtic Vacuum Limited | Water & waste | 1993 |
| Celtic Viking Projects Limited | Construction | 2019 |
| Certus Accounting Limited | Professional & scientific | 2017 |
| Chandler Lettings Ltd | Hospitality | 2025 |
| Charthouse Marine Limited | Professional & scientific | 1996 |
| Chattels Limited | Wholesale & retail | 2003 |
| Checksafe Ltd | Construction | 2016 |
| Cheesecake Cove Ltd | Hospitality | 2026 |
| Chestnuts (Sutton Street) Management Company Limited | Households | 2015 |
| Cheung Family Holdings Limited | Hospitality | 2024 |
| Chorlton House Ltd | Hospitality | 2023 |
| Cirra Ltd | Other services | 2026 |
| Clarence Hotel (Tenby) Limited | Hospitality | 1960 |
| Clareston Court Management Limited | Households | 1991 |