| Newman Financials Limited | Professional & scientific | 2025 |
| Nexbyte Limited | Information & communication | 2005 |
| Nexmedia Ltd | Extraterritorial | 2016 |
| Neyland Marine Services Limited | Manufacturing | 1996 |
| Neyland Pharmacy Limited | Wholesale & retail | 2004 |
| Neyland Training Services Limited | Education | 1989 |
| NG 1000 Ltd | Real estate | 2024 |
| NGB Inspections Limited | Professional & scientific | 2012 |
| NH Counselling & Consultancy Services Ltd | Health & social care | 2026 |
| Nithilam Entrepreneurs Limited | Wholesale & retail | 2015 |
| NJM Inspection Ltd | Professional & scientific | 2025 |
| NJS Groundworks & Civils Ltd | Construction | 2025 |
| Nncoms Limited | Extraterritorial | 2023 |
| Norgan Taylor Financial Ltd | Professional & scientific | 2025 |
| NOS DA Bar Ltd | Hospitality | 2022 |
| Nova Connections Ltd | Extraterritorial | 2024 |
| NPT Construction Ltd | Construction | 2024 |
| NSE (Wales) Limited | Construction | 2006 |
| NTR Motors Limited | Wholesale & retail | 2013 |
| NU YU Cosmetics Ltd | Health & social care | 2001 |
| Nur's Barber Ltd | Other services | 2023 |
| Nyle Limited | Real estate | 2017 |
| O & C Photography Limited | Professional & scientific | 2012 |
| Oakdale 2021 Ltd | Real estate | 2021 |
| OBF2025 Limited | Professional & scientific | 2025 |
| Ocon Fire & Security Limited | Construction | 2006 |
| Ocon Marine OIL & GAS Ltd | Other services | 2013 |
| Octotress Ltd | Information & communication | 2024 |
| OJT Roofing Limited | Construction | 2026 |
| Old Parish Motors Limited | Wholesale & retail | 2019 |
| Olimac Engineering Ltd | Professional & scientific | 2024 |
| Olive and OZ Van Conversions Ltd | Other services | 2022 |
| ON Spec Ltd | Professional & scientific | 2025 |
| ON the Shore Restaurants Limited | Hospitality | 2020 |
| Origin Vets Limited | Professional & scientific | 2013 |
| Ouro Solutions Ltd. | Information & communication | 2017 |
| Owzing Housing Limited | Real estate | 2025 |
| P & C Construction Pembs Ltd | Construction | 2024 |
| P & H Services (South Wales) Limited | Construction | 2004 |
| P K Specialist Services Ltd | Construction | 2021 |
| P.J.M.R.R Limited | Water & waste | 2025 |
| Paddex Ltd | Arts & recreation | 2026 |
| Paddle West Community CIC | Administrative & support | 2022 |
| Paddle West Ltd | Administrative & support | 2016 |
| Padlock Digital Ltd | Information & communication | 2021 |
| Panda Game Studios Ltd | Information & communication | 2018 |
| Pebs Property Clearance & Skip Hire Ltd | Water & waste | 2025 |
| Pegasus Ambulance Service Limited | Health & social care | 2018 |
| Pembroke Coastal Developments Ltd | Administrative & support | 2009 |
| Pembrokeshire Action to Combat Hardship (Patch) | Other services | 2007 |
| Pembrokeshire Building & Plumbing Supplies Limited | Construction | 2012 |
| Pembrokeshire Care Limited | Health & social care | 1998 |
| Pembrokeshire Coastal Ice Cream Company Limited | Hospitality | 2007 |
| Pembrokeshire Cruising Ltd | Arts & recreation | 2003 |
| Pembrokeshire Events Limited | Other services | 2023 |
| Pembrokeshire Fire & Safety Limited | Administrative & support | 2003 |
| Pembrokeshire Hearing Limited | Wholesale & retail | 2023 |
| Pembrokeshire Ice Cream Company (Tenby) Ltd | Hospitality | 2007 |
| Pembrokeshire Logs Ltd | Wholesale & retail | 2014 |
| Pembrokeshire Made Limited | Extraterritorial | 2015 |
| Pembrokeshire Marquee Hire Ltd | Administrative & support | 2020 |
| Pembrokeshire Property Holdings Limited | Real estate | 2026 |
| Pembrokeshire Roofing Ltd | Construction | 2025 |
| Pembrokeshire Self Storage Ltd | Administrative & support | 2023 |
| Pembrokeshire Solar Ltd | Construction | 2024 |
| Pembrokeshire Yacht Sales Ltd | Arts & recreation | 2019 |
| Pembrokeshire’S Junk Monkey Rubbish Removals & Skip Hire Limited | Water & waste | 2026 |
| Pembs Construction Ltd | Construction | 2020 |
| Pembs Ents Ltd | Hospitality | 2023 |
| Pembs Pets Ltd | Other services | 2020 |
| Pembs Plant Hire Ltd | Administrative & support | 2002 |
| Pembs Waste Collections Ltd | Water & waste | 2026 |
| Peninsula Paraplanning Limited | Administrative & support | 2025 |
| Penney Finance Limited | Information & communication | 2025 |
| Peri Peri Scaffolding Ltd | Construction | 2025 |
| PFR Roofing Ltd | Construction | 2025 |
| Phoenix Bowl Limited | Arts & recreation | 2001 |
| Phoenix Consulting (Group) Limited | Professional & scientific | 2018 |
| Physiofit West Wales Ltd | Health & social care | 2011 |
| Physioplan Ltd | Other services | 2012 |
| Picton Place House Management Company Limited | Hospitality | 2005 |
| Pizala Limited | Hospitality | 2025 |
| POLYMER3D Ltd | Professional & scientific | 2025 |
| Port Engineering Limited | Manufacturing | 2005 |
| PPN Properties Limited | Real estate | 2002 |
| Prescient Homes Limited | Real estate | 2017 |
| Prescient Life Limited | Extraterritorial | 2014 |
| Preseli Homes Limited | Construction | 2016 |
| Prestige Heritage Inns Limited | Hospitality | 2025 |
| Price & Kelway Limited | Professional & scientific | 2018 |
| Primecore Solutions Ltd | Administrative & support | 2025 |
| Priory Project Ltd | Health & social care | 1986 |
| Project Research & Design Limited | Hospitality | 2014 |
| Property Management Wales Limited | Real estate | 2002 |
| Providence 2020 Ltd | Education | 2009 |
| PWP Estates Ltd | Construction | 2024 |
| Quadra Marine Services Limited | Manufacturing | 2010 |
| Qual Pass Ltd | Administrative & support | 2008 |
| Qualtech Engineering (Pembs) Ltd | Professional & scientific | 2022 |
| R P Carpentry & Sons Limited | Construction | 2024 |