| Kocoglu Investments Ltd | Real estate | 2024 |
| L S Civil Engineering Limited | Construction | 2022 |
| Larp Safety Limited | Administrative & support | 2010 |
| Laurie Williams Hair Salon Limited | Construction | 2019 |
| Lddc Properties Ltd | Real estate | 2026 |
| LE Kicbrix Estate Company Limited | Real estate | 2023 |
| Learnability Pembs Ltd | Education | 2020 |
| Ledwood Global Limited | Administrative & support | 2024 |
| Ledwood Holdings Limited | Manufacturing | 2011 |
| Ledwood Mechanical Engineering Limited | Manufacturing | 2000 |
| Ledwood Protective Coatings Limited | Construction | 2010 |
| Liding Limited | Real estate | 2020 |
| LJ Accountancy Services Ltd | Professional & scientific | 2006 |
| Llanion Cove Ltd | Arts & recreation | 2016 |
| Llanreath Residents Association Limited | Other services | 2001 |
| Llink Group Limited | Wholesale & retail | 1987 |
| Llis Developments Ltd | Construction | 2022 |
| LMG Mechanical Technician Ltd Limited | Construction | 2026 |
| Lolabeautytouch Limited | Other services | 2025 |
| London Road Management Company (Pembrokeshire) Limited | Households | 2006 |
| Longspan Composites Limited | Wholesale & retail | 2019 |
| LSL Training Limited | Education | 2008 |
| LTC Cleaning Limited | Administrative & support | 2026 |
| LUCKYGARDEN1212 Limited | Real estate | 2024 |
| LWS Holdings Ltd | Hospitality | 2018 |
| M Daye Welding & Fabrication Ltd | Manufacturing | 2024 |
| M PAW West Ltd | Other services | 2023 |
| Mainstay Marine Solutions Limited | Manufacturing | 2014 |
| MAN of Fire Ltd | Construction | 2019 |
| Manordeilo Service Station Limited | Wholesale & retail | 2015 |
| Mavalon Care Limited | Health & social care | 2001 |
| MAX Group Holdings Ltd | Financial services | 2026 |
| Maxilla Packaging Limited | Administrative & support | 2010 |
| Maxiom Packaging Limited | Financial services | 2015 |
| MDJ Accountancy Limited | Professional & scientific | 2008 |
| Meyrick Developments Limited | Real estate | 2015 |
| Meyrickholiday Ltd | Real estate | 2024 |
| MJ & TL Manning Limited | Wholesale & retail | 1988 |
| Mobility Shop West Wales Ltd | Wholesale & retail | 2020 |
| Modena Capital Limited | Professional & scientific | 2024 |
| Molisano Ltd | Other services | 2020 |
| Morgan Prout Consultancy Services Ltd | Construction | 2025 |
| MR Roberts Formal Hire Ltd | Wholesale & retail | 2019 |
| Mr.Aka Turkish Barber Ltd | Other services | 2022 |
| Mrco Accountants Ltd | Professional & scientific | 2025 |
| Mselleymay Ltd | Public administration | 2024 |
| Murftech Capital Investments Ltd | Real estate | 2024 |
| Murftech Engineering Solutions Ltd | Professional & scientific | 2017 |
| Murftech Global Holdings Ltd | Financial services | 2024 |
| Mustang Marine (Pembroke Dock) Limited | Extraterritorial | 2015 |
| My E-Motion | Administrative & support | 2018 |
| MY08 KAM Ltd | Hospitality | 2023 |
| N & L Nutrition Ltd | Administrative & support | 2020 |
| N17 Studio Ltd | Other services | 2020 |
| Nest EV & Sustainable Energy Group Ltd | Manufacturing | 2020 |
| Ngev Holdings Ltd | Other services | 2021 |
| NO Normal Clothing Ltd | Manufacturing | 2026 |
| NO Water Just Shine Pembroke Limited | Administrative & support | 2025 |
| Ntbb Industrial Services Limited | Professional & scientific | 2025 |
| Oakdene Training Services Limited | Health & social care | 2011 |
| Ocean Way 1965 Limited | Extraterritorial | 2014 |
| Orchard Brothers Property Ltd | Real estate | 2025 |
| P R P Commercial Training Ltd | Education | 2000 |
| P.L.T.A. Ltd | Construction | 2025 |
| P.R.P. Training Limited | Education | 1994 |
| Parrott Properties of Pembrokeshire Ltd | Hospitality | 2024 |
| Paskeston Hall Country House Limited | Professional & scientific | 2010 |
| Pembroke Dock Harlequins RFC Ltd | Arts & recreation | 2019 |
| Pembroke Haven (Residential Homes) Limited | Health & social care | 2001 |
| Pembroke Haven and District Autograss Club Limited | Arts & recreation | 1984 |
| Pembroke Haven Yacht Club Ltd | Arts & recreation | 2017 |
| Pembroke Packaging & Print Limited | Wholesale & retail | 1989 |
| Pembrokeshire Autograss Club Limited | Arts & recreation | 1985 |
| Pembrokeshire Citizens Advice Bureau | Information & communication | 2007 |
| Pembrokeshire Coastal Forum Community Interest Company | Professional & scientific | 2013 |
| Pembrokeshire Electrician Ltd | Construction | 2018 |
| Pembrokeshire Investments Ltd | Real estate | 2021 |
| Pembrokeshire Plant Car & Commercial Limited | Other services | 2017 |
| Pembrokeshire Taxi and Minibus Hire Limited | Transport & logistics | 2013 |
| Pembrokeshire Tourism | Other services | 2016 |
| Pembs Plastering & Building Ltd | Construction | 2020 |
| Pembs Properties Ltd | Real estate | 2023 |
| Pembs V-Dubs Garage Limited | Wholesale & retail | 2021 |
| Penfro Consultancy Limited | Professional & scientific | 2006 |
| Penfro Developments Limited | Real estate | 2007 |
| Penfro Group (Holdings) Limited | Professional & scientific | 2015 |
| Penfro Pizza Ltd | Hospitality | 2019 |
| Penfro Retail Limited | Wholesale & retail | 2014 |
| Perfect Storm Products Limited | Health & social care | 2012 |
| Phlegmatic Limited | Wholesale & retail | 2014 |
| PI Scaffolding Limited | Construction | 2009 |
| Pioneer Leisure UK Limited | Wholesale & retail | 2009 |
| Pippo's Playhouse Ltd | Arts & recreation | 2025 |
| PIZZATIME525 Ltd | Hospitality | 2026 |
| Pobl TIR MÔR CIC | Information & communication | 2023 |
| Portafortuna UK Limited | Wholesale & retail | 2021 |
| Procure Materials Limited | Professional & scientific | 2017 |
| PRP Consolidated Limited | Education | 2009 |
| Pullup Matchmaker Ltd | Arts & recreation | 2026 |
| Purebronze Tanning Ltd | Wholesale & retail | 2025 |