| Praevidens Properties Ltd | Real estate | 2024 |
| Precise Control Systems Limited | Construction | 2015 |
| Premier Personalisation Limited | Manufacturing | 2013 |
| Prestige Lofts Ltd | Construction | 2016 |
| Pretty Corp Limited | Other services | 2022 |
| Pretty Lane Kennels Ltd | Other services | 2022 |
| Prety Pout Shop Ltd | Wholesale & retail | 2025 |
| Primarily Wood Limited | Construction | 2003 |
| Prime Laundry OP Ltd | Other services | 2026 |
| Print and Sign Services Ltd | Manufacturing | 2026 |
| Prive Official UK Ltd | Wholesale & retail | 2020 |
| Prive Parfums London Ltd | Wholesale & retail | 2023 |
| Pro Bike Custom Cycles Ltd. | Professional & scientific | 2018 |
| Pro Content Creates Ltd | Professional & scientific | 2024 |
| Professional Fixings Ltd | Professional & scientific | 2019 |
| Proficient Testing Solutions Limited | Professional & scientific | 2008 |
| Profitrocket Bookkeeping Ltd | Professional & scientific | 2025 |
| Progressive Nyle PM Ltd | Professional & scientific | 2024 |
| Prominent Heating Services Ltd | Construction | 2021 |
| Promote UK (South East) Ltd | Professional & scientific | 2017 |
| Properties by Parkplace Ltd | Real estate | 2024 |
| Property Sports Network Ltd | Arts & recreation | 2018 |
| Prosignia Limited | Health & social care | 2004 |
| Prospera Property Limited | Real estate | 2024 |
| PSE Installations Ltd | Construction | 2016 |
| Psycounts Ltd | Information & communication | 2026 |
| PUB House and Kitchen Group Limited | Hospitality | 2025 |
| Pubhouse & Kitchen Limited | Hospitality | 2022 |
| Pure NRG Nutrition Limited | Health & social care | 2022 |
| Purley Dolphins Swim School Limited | Arts & recreation | 2002 |
| Purple Ripple Limited | Information & communication | 2019 |
| Puzzle Kitchens Ltd | Wholesale & retail | 2020 |
| PWJ Plumbing Ltd | Wholesale & retail | 2005 |
| Q & C Mechanical Services Limited | Construction | 2014 |
| QA & QC Limited | Professional & scientific | 2022 |
| QAT Consultants Ltd | Information & communication | 2018 |
| Qayim Ltd | Real estate | 2022 |
| Quick Pick Magic Ltd | Wholesale & retail | 2020 |
| Quickstop George Street Limited | Wholesale & retail | 2026 |
| Quinn Baker Productions Ltd | Arts & recreation | 2025 |
| Quipacre Ltd | Health & social care | 2025 |
| R a D Property Constructions Ltd | Administrative & support | 2016 |
| R B Hand Car Wash Crawley Ltd | Other services | 2025 |
| R Chaudhry Ltd | Professional & scientific | 2024 |
| R M Willis Consultancy Limited | Education | 2021 |
| R W Property Consultants Ltd | Real estate | 2020 |
| R&R Physio Pilates Ltd | Other services | 2024 |
| R.A.M Security Systems Ltd | Administrative & support | 2022 |
| RA Counselling Limited | Professional & scientific | 2024 |
| Raams Properties Ltd | Real estate | 2018 |
| Raasi Mahal Ltd | Real estate | 2020 |
| Racketpass Ltd | Information & communication | 2024 |
| RAI Information Technology Limited | Information & communication | 2013 |
| Rains Roofs Ltd | Construction | 2025 |
| Rajm Property Limited | Real estate | 2019 |
| RAO Productions Ltd | Information & communication | 2025 |
| RAW Retail (PVT) Limited | Wholesale & retail | 2025 |
| Rawaa Tales Ltd | Education | 2023 |
| RAY Martin Ltd | Construction | 2004 |
| Razr Sharp Enterprises Ltd | Wholesale & retail | 2024 |
| RB Paintlab Ltd | Wholesale & retail | 2026 |
| RCG Custom Build Limited | Construction | 2017 |
| RDT2 Innovation Ltd | Real estate | 2022 |
| Reach & Wash Cleaning Services Ltd | Administrative & support | 2020 |
| React 24 Seven Limited | Information & communication | 2003 |
| Real Consulting Group Limited | Information & communication | 2014 |
| Realflex Applications Ltd | Information & communication | 2011 |
| Rectory Park (Development ) Limited | Households | 2024 |
| Red Lotus Consulting Limited | Professional & scientific | 2023 |
| Reddings Wealth Management Ltd | Professional & scientific | 2019 |
| Redeemed Property Ltd | Real estate | 2021 |
| Redfire Marketing Solutions Ltd | Professional & scientific | 2013 |
| Redline Engineering (UK) Limited | Wholesale & retail | 2012 |
| Redline Engineering Car Sales Limited | Wholesale & retail | 2017 |
| Rehoboth Enterprises International Limited | Wholesale & retail | 2015 |
| Reimagine VFX Ltd | Information & communication | 2025 |
| Rein Gadges Limited | Wholesale & retail | 2024 |
| RELIABLE24 Limited | Health & social care | 2017 |
| Renato Europe Trans Ltd | Transport & logistics | 2018 |
| Renovare Realty Ltd | Transport & logistics | 2024 |
| Renovo Electrical Limited | Construction | 2024 |
| Republic Retail Ltd | Wholesale & retail | 2020 |
| Rescuean Limited | Wholesale & retail | 2006 |
| Resi Consulting Ltd | Financial services | 2025 |
| Revolution Europe Ltd | Other services | 2014 |
| REX Holdings Limited | Financial services | 2025 |
| Reyada Group Ltd | Wholesale & retail | 2025 |
| RGQ21 Ltd | Households | 2021 |
| Riaan RAI Motion Pictures Ltd | Information & communication | 2019 |
| Riaannaira Properties Ltd | Real estate | 2025 |
| Ricardo Abrantes Chiropractic Limited | Health & social care | 2021 |
| Rickman Hill Road Limited | Households | 2001 |
| Ridge Care Group Ltd | Health & social care | 2018 |
| Right Way Landscapes Limited | Agriculture & fishing | 2023 |
| Riro.Ai Ltd | Professional & scientific | 2026 |
| Rise Property Ventures Ltd | Real estate | 2025 |
| Rizgar Limited | Hospitality | 2024 |
| RJB Transformation Consulting Ltd | Information & communication | 2026 |
| RJD Corporation Ltd | Hospitality | 2020 |
| Rkgcm Limited | Real estate | 2020 |