| Prime Cabs Blandford Ltd | Transport & logistics | 2022 |
| Print Press Solutions Limited | Administrative & support | 2000 |
| Pro House Cleaning Limited | Administrative & support | 2020 |
| Pro-Tech Specialist Metal Fabrication and Finishing Ltd. | Manufacturing | 2025 |
| Project 204 Limited | Arts & recreation | 2020 |
| Project Reset Ltd | Education | 2025 |
| Projects and Ventures Limited | Administrative & support | 2022 |
| Prominent Production Limited | Administrative & support | 2007 |
| Property Solutions and Resource Limited | Real estate | 2022 |
| Prosper Financial Solutions Limited | Financial services | 2012 |
| Prosper Holdings (South) Limited | Financial services | 2018 |
| Prosper Protect Limited | Financial services | 2018 |
| Protosun Benefits Limited | Administrative & support | 2017 |
| Protosun Ltd | Financial services | 2007 |
| Pruv Health & Wellness Ltd | Wholesale & retail | 2016 |
| PS Drivers Limited | Transport & logistics | 2016 |
| Puddletown Old School Management Limited | Households | 2016 |
| PYE Lane Flats Limited | Households | 2013 |
| Quantum-Quay Ltd | Information & communication | 2022 |
| Quarleston Property Management Limited | Households | 1996 |
| Querk Landscapes Ltd | Administrative & support | 2025 |
| Quester Press Limited | Information & communication | 1998 |
| R & a Electrical Solutions Limited | Construction | 2010 |
| R. J. Tory - Turnworth Farm Limited | Agriculture & fishing | 1978 |
| Rachael Anne Joseph Limited | Construction | 2023 |
| Raise Your Game Partnership Limited | Professional & scientific | 2024 |
| Ranadog Property Services Ltd | Households | 2020 |
| Ranston Limited | Extraterritorial | 2008 |
| Rathbeg Ltd | Professional & scientific | 2021 |
| RAW Dog's Dorset Ltd | Wholesale & retail | 2022 |
| Rbaker Legal Ltd | Public administration | 2023 |
| RBF Management Limited | Other services | 2011 |
| RBS Fabrications Limited | Manufacturing | 2006 |
| RC Audio Systems Limited | Manufacturing | 2015 |
| RDA Facade Limited | Manufacturing | 2025 |
| Re-Right Media Ltd | Information & communication | 2025 |
| Recyclify Ltd | Water & waste | 2021 |
| Refly Ltd | Water & waste | 2025 |
| Reform Luxe Studio Limited | Arts & recreation | 2025 |
| Renn Property Limited | Real estate | 2023 |
| Rent Link Ltd | Real estate | 2021 |
| Resonates SLM Ltd | Professional & scientific | 1999 |
| Reversion Valuation & Advisory Limited | Professional & scientific | 2025 |
| RID Electricals Ltd | Construction | 2022 |
| Ridgeway Farm Livery Ltd | Agriculture & fishing | 2026 |
| Ringwood Pharmacy Limited | Wholesale & retail | 2015 |
| Rivercroft Aviation Ltd | Transport & logistics | 2022 |
| Riverside Airport Transfers Limited | Transport & logistics | 2023 |
| Riversmeet Properties Ltd | Construction | 2018 |
| Riviera Hair and Bodycare Ltd | Other services | 2020 |
| Robert Angell Design International Limited | Other services | 2013 |
| Robert Angell Design Studio Limited | Professional & scientific | 2010 |
| Robert Angell Residential Limited | Real estate | 2022 |
| Robobitz Ltd | Manufacturing | 2008 |
| Roger P Consulting Ltd | Health & social care | 2019 |
| Rogers Consultancy Ltd. | Extraterritorial | 2024 |
| Roman Risk Management Ltd | Professional & scientific | 2025 |
| Rook Court Management Limited | Households | 2022 |
| Rookery Corner Commonhold Association Limited | Households | 2005 |
| Rose & Co Dorset Limited | Administrative & support | 2025 |
| Rotation Works Ltd | Professional & scientific | 2024 |
| ROY Vincent Limited | Construction | 2012 |
| Royal Signals Enterprises Limited | Wholesale & retail | 2020 |
| RS Global Source Ltd | Administrative & support | 2021 |
| RS Recycling Limited | Water & waste | 2014 |
| RTL Property Holdings Limited | Real estate | 2018 |
| Rubys Salon Ltd | Other services | 2019 |
| Ruco Cafe Ltd | Hospitality | 2025 |
| Runslea Connect Community Interest Company | Public administration | 2025 |
| Rupert Tory Ltd | Agriculture & fishing | 2022 |
| RV BEE Limited | Agriculture & fishing | 2020 |
| Rycreation Ltd | Information & communication | 2010 |
| S & H Motors (Poole) Limited | Wholesale & retail | 2002 |
| S Lawson Limited | Construction | 2003 |
| S Wallworth Electrical Services Ltd | Construction | 2010 |
| S&A Niwas Limited | Real estate | 2025 |
| S. Gaulton (Plumbing & Heating) Ltd | Construction | 2003 |
| S.F. Ball Limited | Arts & recreation | 2002 |
| Safeteq Safety Solutions UK Ltd | Professional & scientific | 2025 |
| Safety NET Installations Limited | Construction | 2013 |
| Sail Joy Limited | Transport & logistics | 2025 |
| Sales Solutions and Resource Limited | Administrative & support | 2016 |
| Saline Business Services Limited | Administrative & support | 2014 |
| Saline Ventures Limited | Professional & scientific | 2023 |
| Saline-X Limited | Professional & scientific | 2025 |
| Salmon Marine Limited | Manufacturing | 2016 |
| Salonitems Limited | Wholesale & retail | 2010 |
| Salw Controls Limited | Professional & scientific | 2016 |
| SAM Christopher Building Ltd | Construction | 2020 |
| SAM Fabrications Limited | Manufacturing | 2022 |
| SAMIAN1 Limited | Financial services | 2021 |
| Sara & DAN Housing Ltd | Construction | 2026 |
| Sarah Bell Limited | Extraterritorial | 2021 |
| Sarap Global Consultants Limited | Professional & scientific | 2022 |
| Sarum Communications Limited | Professional & scientific | 2021 |
| Sarunds Holdings Limited | Financial services | 2023 |
| Sauna Craft Ltd | Manufacturing | 2024 |
| Saxon Civils (Plant) Ltd | Administrative & support | 2020 |
| Saxon Civils Ltd | Construction | 2011 |
| Scott Electrical (Dorset) Limited | Construction | 2003 |