| Plurago Limited | Information & communication | 2010 |
| PM Advisory Solutions Ltd | Professional & scientific | 2025 |
| Pobjoy International School of Minting Technology Limited | Manufacturing | 1992 |
| Pobjoy Mint Limited | Manufacturing | 1952 |
| Pond Farm Close Residents Company Limited | Households | 1995 |
| Poplar Solutions Limited | Professional & scientific | 2014 |
| Portree Regent Limited | Extraterritorial | 2014 |
| Potluck Ltd | Hospitality | 2020 |
| Powerbase Ltd | Information & communication | 1996 |
| Preeti Amazing Limited | Information & communication | 2012 |
| Prema Consulting Services Ltd | Professional & scientific | 2025 |
| Premier Automotive Resources Ltd | Professional & scientific | 2024 |
| Premier Football Relocation Limited | Transport & logistics | 2019 |
| Premier Relocation Europe Limited | Financial services | 2025 |
| Premier Relocation Ltd | Transport & logistics | 2011 |
| Premier Relocation North East Limited | Transport & logistics | 2026 |
| Premier Relocation North Limited | Transport & logistics | 2025 |
| Price UK Holdings Ltd | Financial services | 2021 |
| Prime Selling Solutions Limited | Wholesale & retail | 2023 |
| Prime Trading Partners Ltd | Hospitality | 2026 |
| Princewood Renewables & Data Centre Recruitment Ltd | Administrative & support | 2024 |
| Priory Mortgage Services Ltd | Financial services | 2012 |
| Priya Young Limited | Information & communication | 2012 |
| Prizma London Ltd | Real estate | 2017 |
| Project Solutions and Management Limited | Information & communication | 2005 |
| Proplay Rentals Ltd | Administrative & support | 2026 |
| Prre Holdings Limited | Financial services | 2025 |
| PS Payroll and Finance Limited | Professional & scientific | 2023 |
| Pushtinikunj Foundation | Other services | 2018 |
| PZB Advisory Limited | Professional & scientific | 2025 |
| Queens Road Mgmt Limited | Real estate | 1990 |
| Quick Move Lettings Agency Ltd | Households | 2018 |
| Quidnet Capital Partners LLP | | 2010 |
| Quisitive Thinking Ltd | Information & communication | 2023 |
| Quoin-Datum Consultants Ltd | Professional & scientific | 2015 |
| R Devgon Ltd | Health & social care | 2022 |
| R H Sammons Ltd | Construction | 1972 |
| R P Cleaning Ltd | Administrative & support | 2006 |
| Rabaya Ltd | Construction | 2025 |
| Raines Consulting Ltd | Professional & scientific | 2017 |
| Rajan Investment Properties Limited | Real estate | 2014 |
| Ratiklytics Limited | Extraterritorial | 2024 |
| Rbmc Consulting Limited | Information & communication | 2017 |
| Rbvalet&Cleaning Ltd | Administrative & support | 2025 |
| Reddington Groundworks Limited | Construction | 2013 |
| Redline Cars & Commercial Ltd | Wholesale & retail | 2014 |
| Reflective Refinishing Ltd | Wholesale & retail | 2025 |
| Refrigerated Vehicles Ltd | Extraterritorial | 2020 |
| Regency Court (Tadworth Park) Limited | Households | 1992 |
| Regency Developments (Worthing) Limited | Real estate | 2016 |
| Regexcel Consulting Ltd | Professional & scientific | 2013 |
| Reguceutica Limited | Professional & scientific | 2008 |
| Relational Counselling Ltd | Health & social care | 2023 |
| Remarketing Solutions Ltd | Wholesale & retail | 2024 |
| Residual Assets Limited | Real estate | 2003 |
| Reward Management Remnant Limited | Real estate | 2016 |
| Rising Ronin Ltd | Wholesale & retail | 2026 |
| Rita PUB Ltd | Hospitality | 2024 |
| Rivett Media Limited | Other services | 2013 |
| Rjshortcarpentry&Construction Ltd | Construction | 2026 |
| RM Sanwell Roofing Ltd | Construction | 2024 |
| RO and a Ltd | Real estate | 2024 |
| Roadstar Expo Limited | Professional & scientific | 1988 |
| Rock and Roll Landscaping Ltd | Administrative & support | 2015 |
| Rockford Mcqueen Ltd | Professional & scientific | 2014 |
| Rocsolid Security Limited | Administrative & support | 2019 |
| Roger Breen Electrical & Building Services Limited | Construction | 2001 |
| Rolandvolt Ltd | Wholesale & retail | 2026 |
| RS Movers Ltd | Transport & logistics | 2026 |
| RS Rafasigns Ltd | Construction | 2022 |
| RS Repairs & Replacements Ltd | Construction | 2025 |
| Rsolved Physio Ltd | Other services | 2019 |
| RTG Investments Ltd | Real estate | 2025 |
| RTR Air Conditioning Ltd | Construction | 2018 |
| Ruperto London Ltd | Other services | 2014 |
| Ruske Electrical Ltd | Construction | 2016 |
| Ruskin Estates Ltd | Hospitality | 2021 |
| Rutland Lodge (Petersham) Management Company Limited | Households | 1970 |
| S a Sawyer Services Ltd | Administrative & support | 2025 |
| S J Bradleys French Polishers Ltd | Other services | 2019 |
| S&M PT Limited | Real estate | 2026 |
| S&S SAI UK Limited | Wholesale & retail | 2012 |
| S. Devine (Civil Engineering) Limited | Construction | 1981 |
| S. Devine Plant Hire Limited | Extraterritorial | 1994 |
| Safe Nest Housing Solutions Limited | Real estate | 2026 |
| Safes London Limited | Administrative & support | 2018 |
| Saha Neurology Services Ltd | Health & social care | 2011 |
| Sais Construction Limited | Construction | 2015 |
| Saker Thomas Limited | Construction | 2019 |
| Salavacion Cleaners Limited | Administrative & support | 2017 |
| Sales & Marketing Associates Limited | Professional & scientific | 1987 |
| Sammy Stopford Enterprise Ltd | Real estate | 2015 |
| Sandhill Pipework Solutions Limited | Construction | 2019 |
| Sandhill Property Services Limited | Construction | 2017 |
| SB & Co Tranquility Limited | Manufacturing | 2024 |
| SB Retail Marketing Solutions Ltd | Professional & scientific | 2012 |
| SC&D2D Ltd | Transport & logistics | 2021 |
| SCG Flooring Limited | Construction | 2013 |
| Schoolhire Solutions Ltd | Other services | 2014 |
| Scofil Limited | Health & social care | 2001 |