| Purvi Foods Limited | Extraterritorial | 2017 |
| Pushpa Kara Ltd | Manufacturing | 2020 |
| Pusti Investments Limited | Real estate | 2014 |
| Pvce Cars Ltd | Transport & logistics | 2025 |
| PVL Heating Services Limited | Construction | 2016 |
| Pylon One Limited | Arts & recreation | 2007 |
| Pylon One Trustee Limited | Extraterritorial | 2024 |
| Pynnacle Properties Ltd | Real estate | 2021 |
| Pynnacles Close Management Ltd | Households | 2021 |
| Pynnacles Private Limited | Real estate | 2019 |
| PYP2 Ltd | Construction | 2025 |
| Pyramid Kingdom Limited | Real estate | 2021 |
| Q Books Limited | Professional & scientific | 2020 |
| Q Fruit & VEG Ltd | Wholesale & retail | 2020 |
| Qa-Uk Limited | Professional & scientific | 2017 |
| Qaim Investments Ltd | Real estate | 2022 |
| Qbik Ltd | Wholesale & retail | 2022 |
| Qhere Ltd | Information & communication | 2020 |
| QMB Group Ltd | Construction | 2018 |
| Qoot DAB2 UK Limited | Hospitality | 2018 |
| Qsaviours Limited | Hospitality | 2014 |
| Qualitix Building Contractor Ltd | Construction | 2011 |
| Quality Craft Wood Work Limited | Manufacturing | 2025 |
| Quality Events Limited | Administrative & support | 2012 |
| Qualitycraft Limited | Professional & scientific | 2001 |
| QUANT1 Limited | Other services | 2023 |
| Quantaur Strategies Limited | Administrative & support | 2014 |
| Quantid Ltd | Construction | 2016 |
| Quantum Events Limited | Arts & recreation | 2023 |
| Quartermaster Supplies Ltd | Administrative & support | 2011 |
| Quartermaster's Limited | Wholesale & retail | 1999 |
| Queens Apartments RTM Company Limited | Households | 2017 |
| Queens Close Residents Limited | Households | 2012 |
| Quercine Limited | Arts & recreation | 2016 |
| Questset Limited | Wholesale & retail | 2014 |
| Quilliam House Limited | Professional & scientific | 2016 |
| R & B Electrical Contractors Ltd | Construction | 2004 |
| R & D Properties Limited | Real estate | 1993 |
| R & I Solutions Limited | Administrative & support | 2016 |
| R & K Property Associates Limited | Other services | 2006 |
| R & R Food and Beverage Limited | Wholesale & retail | 2017 |
| R & S Medics Limited | Health & social care | 2015 |
| R & S Property Enterprises Ltd | Real estate | 2018 |
| R a Media Ltd | Administrative & support | 2011 |
| R a Refined Limited | Information & communication | 2015 |
| R B Line Limited | Extraterritorial | 2016 |
| R D Investment Property Limited | Real estate | 2017 |
| R I K Services Limited | Professional & scientific | 1997 |
| R S T Properties (London) Ltd | Real estate | 2025 |
| R&B Estate Planners Ltd | Other services | 2016 |
| R&J Engineering Solutions Limited | Manufacturing | 2014 |
| R&R Investment Services Limited | Real estate | 2021 |
| R&S Asset Group Ltd | Real estate | 2024 |
| R. E. Gore Building Services Limited | Construction | 1993 |
| R.A.C Building Ltd | Construction | 2018 |
| R.E. Bentley Limited | Real estate | 2007 |
| R2V Design & Build Ltd | Construction | 2014 |
| R4 Construction Limited | Construction | 2025 |
| RA Car Rental Ltd | Wholesale & retail | 2017 |
| RA Cars and Commercial Ltd | Wholesale & retail | 2017 |
| Raai Limited | Information & communication | 2020 |
| Rabadiya Group Ltd | Financial services | 2024 |
| Rabma International Limited | Wholesale & retail | 1999 |
| RAC Builders Limited | Construction | 2019 |
| Race Marketing Management Limited | Professional & scientific | 2014 |
| Racer Trader Ltd | Professional & scientific | 2024 |
| Rachel Battais Interiors Ltd | Professional & scientific | 2020 |
| Racing-Systems.Co.Uk Limited | Information & communication | 2003 |
| Radha Ayurvedic Limited | Other services | 2025 |
| Radha Madhav Ltd | Real estate | 2022 |
| Radian Tech Solutions Ltd | Information & communication | 2024 |
| Radiant Care Homes Limited | Health & social care | 2024 |
| Radiation Limited | Real estate | 1998 |
| Radix Inova Ltd | Professional & scientific | 2020 |
| Radu Mechanical Services Limited | Wholesale & retail | 2016 |
| Rafa (RP) Holdings Ltd | Financial services | 2022 |
| Raff Industries Ltd | Wholesale & retail | 2022 |
| Rafidin Ltd | Education | 2023 |
| Rafiki Ltd | Real estate | 1999 |
| Rafles Limited | Health & social care | 2006 |
| Raga Entertainments Ltd | Administrative & support | 2025 |
| Raghvani Investments Ltd | Administrative & support | 2026 |
| Raghwani Investments Limited | Real estate | 2022 |
| Raildog Limited | Construction | 2019 |
| Railsafe Consulting Ltd | Transport & logistics | 1999 |
| Railway Cury Limited | Hospitality | 2018 |
| Railway Signal Testing Limited | Professional & scientific | 2008 |
| Rainbow Consulting Ltd | Professional & scientific | 2019 |
| Raise NOW Capital Limited | Financial services | 2017 |
| Raise NOW Ealing Limited | Real estate | 2017 |
| Raise the Spirit Limited | Arts & recreation | 2002 |
| Raisin Properties Limited | Real estate | 2017 |
| Raiyze Limited | Professional & scientific | 2021 |
| Raj&Nag UK Ltd | Professional & scientific | 2014 |
| Rajac Limited | Real estate | 2025 |
| Rajani Asset Management Ltd | Real estate | 2025 |
| Rajashree Limited | Professional & scientific | 2013 |
| Rakim Kaii Samba Limited | Construction | 2023 |
| Rakkit Studios Ltd | Information & communication | 2020 |
| Raksnim Limited | Financial services | 2017 |