| Pulse Interiors Ltd | Construction | 2025 |
| Purely Nordic Ltd | Wholesale & retail | 2019 |
| Purervita Ltd | Manufacturing | 2020 |
| Puri Construction Limited | Construction | 2015 |
| Purple Sage Consulting Ltd | Administrative & support | 2017 |
| PW45 Consulting Ltd | Professional & scientific | 2019 |
| Pyramids for Consultation Ltd | Health & social care | 2019 |
| Qamaria Fragrance Ltd | Wholesale & retail | 2025 |
| Qipworks Ltd | Professional & scientific | 2018 |
| Quality Care Compliance Partners Ltd | Professional & scientific | 2023 |
| Quantum INK Publishing Ltd | Information & communication | 2024 |
| Quantum Sport Limited | Arts & recreation | 2015 |
| Quatrevaux Properties Limited | Households | 2001 |
| QUB Events Ltd | Information & communication | 2018 |
| Quercus Robur Investments 2 Limited | Real estate | 2025 |
| Quite Brilliant Group Ltd | Information & communication | 2021 |
| Quite Brilliant Ltd | Information & communication | 2012 |
| R & C (UK) Limited | Real estate | 2013 |
| R & L Property Weaver Brook Ltd | Real estate | 2020 |
| R B of Carnival Ltd | Wholesale & retail | 2022 |
| R Croft Coaching Ltd | Administrative & support | 2025 |
| R Meldons Treelife Ltd | Administrative & support | 2020 |
| R P & Associates Ltd | Information & communication | 2004 |
| R&Ba Enterprises Limited | Wholesale & retail | 2022 |
| R&T Collective Ltd | Professional & scientific | 2024 |
| R. Gorecha Limited | Professional & scientific | 2012 |
| R.Crown Ltd | Wholesale & retail | 2025 |
| R23 Vending Ltd | Hospitality | 2023 |
| Radiantly Limited | Information & communication | 2022 |
| Radnor Investments Holdings Ltd | Financial services | 2022 |
| Radnor Services Limited | Households | 2022 |
| Rahbar & Daughter Ltd | Information & communication | 2025 |
| Raido Sowilo Ltd | Information & communication | 2020 |
| Raitakrai JPS Ltd | Hospitality | 2024 |
| RAJ Holdings Ltd | Real estate | 2016 |
| Raja Food & Wine Limited | Wholesale & retail | 2024 |
| Rajaz Production Ltd | Information & communication | 2022 |
| Raksa Ltd | Professional & scientific | 2023 |
| Rambert Creative Contemporary Dance Grades Ltd. | Education | 2018 |
| Rambert School of Ballet and Contemporary Dance | Education | 2003 |
| Rambert School of Ballet and Contemporary Dance Trust | Real estate | 2005 |
| Rambert Trade Marks Holding Company Ltd | Arts & recreation | 2020 |
| Ramite Ltd | Information & communication | 2020 |
| Ramp UP Media Ltd | Professional & scientific | 2018 |
| Random Select Limited | Administrative & support | 2025 |
| Ranelagh House Management Company Limited | Households | 1989 |
| Ranguel Associates Ltd | Administrative & support | 2015 |
| Rans Tech Ltd | Administrative & support | 2011 |
| Rapid Response Drivers Limited | Administrative & support | 2020 |
| Rasty Ltd | Wholesale & retail | 2024 |
| Ratemyleader Ltd | Information & communication | 2017 |
| Ratna Letting & Management Ltd. | Real estate | 2018 |
| Raven Roofing and Building Supplies Limited | Wholesale & retail | 1974 |
| Ravensbourne Associates Limited | Health & social care | 2005 |
| Ravensbourne House ST Margarets Limited | Hospitality | 2007 |
| RAW Ground Arts Limited | Education | 2016 |
| RAW POT Ltd | Wholesale & retail | 2015 |
| Raw-M Ltd | Other services | 2015 |
| Ray's of Light Ltd | Other services | 2011 |
| Raymond's 1927 Limited | Hospitality | 2023 |
| Rayo Property Investment Ltd | Real estate | 2024 |
| Rbe-Tpm Ltd | Information & communication | 2025 |
| RBM (Car Park) Limited | Real estate | 1993 |
| RBM Development Limited | Real estate | 2007 |
| RC Connect Limited | Professional & scientific | 2022 |
| Rcvrd Limited | Information & communication | 2024 |
| RD Online Ltd | Wholesale & retail | 2024 |
| RDC Cookham Limited | Other services | 2015 |
| RDG Holdco Limited | Financial services | 2021 |
| Re:New Broking Ltd | Administrative & support | 2023 |
| Reach Coffee Ltd | Hospitality | 2021 |
| Readytosale Limited | Wholesale & retail | 2020 |
| Real Drinks Group Limited | Wholesale & retail | 2004 |
| Real Drinks Limited | Wholesale & retail | 2014 |
| Real YOU Clinic Limited | Health & social care | 2016 |
| Reality Surf Limited | Financial services | 2026 |
| Realty Search and Find Ltd | Real estate | 2024 |
| Recd Developments Limited | Real estate | 2017 |
| Recreate HQ Ltd | Professional & scientific | 2020 |
| Recruitment Professionals Ltd | Administrative & support | 2021 |
| Recsys Ltd | Information & communication | 2008 |
| Recur Partners Ltd | Administrative & support | 2025 |
| Red Gold Traders Ltd | Wholesale & retail | 2023 |
| Red Green Search Limited | Information & communication | 2007 |
| Red Management Limited | Professional & scientific | 2013 |
| Red Moon Media Ltd | Information & communication | 2021 |
| Red Pine Technologies Ltd | Information & communication | 2013 |
| Red Thread LAB Ltd. | Information & communication | 2025 |
| Red With Blue Limited | Other services | 2020 |
| RED23 Ltd | Wholesale & retail | 2004 |
| Redbrick Capital Partners Ltd | Real estate | 2026 |
| Redbridge Financial Services Limited | Professional & scientific | 2018 |
| Redeye Productions Limited | Information & communication | 1988 |
| Redmayne Properties Ltd | Real estate | 2025 |
| Redstarkim Limited | Professional & scientific | 2012 |
| Reelok Ltd | Manufacturing | 2024 |
| Reevah Limited | Health & social care | 2014 |
| Refined by Hewitt Ltd | Other services | 2024 |
| Refreshing Group Ltd | Administrative & support | 2003 |
| Refreshing Limited | Professional & scientific | 2004 |