| Pure Interactive Limited | Information & communication | 2000 |
| Pure IT Solutions (UK) Ltd | Professional & scientific | 1999 |
| Pure Majestic Limited | Administrative & support | 2021 |
| Pure Merch Ltd | Wholesale & retail | 2024 |
| Pure Mercury Limited | Professional & scientific | 2019 |
| Pure Site Solutions Limited | Construction | 2017 |
| Purego Cleaning Solutions Limited | Administrative & support | 2023 |
| Purleigh Shawl Shellfish Ltd | Agriculture & fishing | 2011 |
| Purple Chamber Ltd | Wholesale & retail | 2026 |
| Purple Direct Ltd | Information & communication | 2025 |
| Purple Lotus Services Ltd | Health & social care | 2022 |
| Purplebz Ltd | Information & communication | 2025 |
| Putinas Holdings Limited | Financial services | 2018 |
| Putul Legacy Ltd | Wholesale & retail | 2026 |
| PVS Services Limited | Construction | 2019 |
| PW Entertainments Limited | Arts & recreation | 2011 |
| PW Fire Safety Limited | Professional & scientific | 2006 |
| PWA Painters & Decorators Limited | Construction | 2015 |
| PWW Ventures Limited | Professional & scientific | 2014 |
| Pyrmont Homes Ltd | Construction | 2017 |
| Pyrus Ltd | Information & communication | 2016 |
| Q'Cast Asset Finance Ltd | Financial services | 2020 |
| QAM Skills Centre Limited | Professional & scientific | 2014 |
| QB Square Limited | Professional & scientific | 2023 |
| Qbdn-Tcc Holdings Limited | Education | 2026 |
| QLX Limited | Wholesale & retail | 2007 |
| QQ Bubble Tea Ltd | Hospitality | 2022 |
| QTA Miticun Limited | Real estate | 2024 |
| Quadraform Ltd | Wholesale & retail | 2025 |
| Quadrangle Education Limited | Education | 2024 |
| Qualitas Construction Limited | Construction | 2018 |
| Qualitas Inspection Services Limited | Other services | 2007 |
| Quality & Style Limited | Wholesale & retail | 2018 |
| Quality Print Finishers Limited | Administrative & support | 2011 |
| Quality Spaces Ltd | Real estate | 2018 |
| Quantity Surveying & Project Management Limited | Financial services | 2016 |
| Quantums Mechanical Services Ltd | Construction | 2013 |
| Quartz Installations Ltd | Construction | 2019 |
| Quattro Financial Planning Limited | Professional & scientific | 2015 |
| Queen BEE Boutique Limited | Wholesale & retail | 2021 |
| Queens Court RTM Company Limited | Households | 2010 |
| Quelch Consulting Limited | Information & communication | 2015 |
| Quelch Estates Limited | Information & communication | 2015 |
| Quest Commercial Cleaning Ltd | Administrative & support | 2025 |
| Quest Holdings Group Ltd | Financial services | 2025 |
| Quest HR Ltd | Administrative & support | 2025 |
| Quest Installation Services Ltd | Construction | 2003 |
| Quest Maintenance Services Ltd | Construction | 2025 |
| Quest Property SPV 1 Ltd | Real estate | 2025 |
| Quick Car Key Replacement Ltd | Other services | 2025 |
| Quick Cheap Plans Ltd | Real estate | 2025 |
| Quickfire Solutions Ltd | Construction | 2019 |
| Quinn Grey Ltd | Real estate | 2022 |
| Quinnwells Plumbing, Heating & GAS Limited | Construction | 2025 |
| Quinterra Group Holdings Ltd | Financial services | 2026 |
| R & G Insulation Limited | Construction | 2015 |
| R & R Carpets (Essex) Limited | Wholesale & retail | 2020 |
| R B Coach Travel Limited | Transport & logistics | 2019 |
| R E Construction Design and Build Limited | Construction | 2016 |
| R E Consulting (Essex) Ltd | Extraterritorial | 2015 |
| R J D Consultancy Limited | Administrative & support | 2009 |
| R J Fulcher & Sons Ltd. | Construction | 2015 |
| R J Promotions Limited | Arts & recreation | 2022 |
| R M B Carpenters Ltd | Construction | 2003 |
| R Pearce & Sons Limited | Construction | 2008 |
| R S Partitioning Limited | Construction | 2003 |
| R&C Project Developments Limited | Construction | 2022 |
| R-L-H-Letting Limited | Real estate | 2024 |
| R. & W. Avery Limited | Construction | 1960 |
| R. Maskell Limited | Wholesale & retail | 1972 |
| R.A. Training Academy UK Limited | Other services | 2024 |
| R5 Associates Ltd | Professional & scientific | 2024 |
| RA Asset Group Limited | Financial services | 2025 |
| RA Equity Holdings Ltd | Financial services | 2025 |
| Raceshop Designs Limited | Wholesale & retail | 2020 |
| Rackfit Ltd | Manufacturing | 2012 |
| Radhuni Spice Route Ltd | Hospitality | 2025 |
| Radiant Hospitality Hub Ltd | Hospitality | 2025 |
| Radio Essex Limited | Information & communication | 2005 |
| Radley James Europe Limited | Administrative & support | 2014 |
| Radley James Holdings Limited | Financial services | 2014 |
| Radley James Limited | Administrative & support | 2009 |
| Rads Interiors Limited | Other services | 2007 |
| Raec Media Limited | Information & communication | 2022 |
| Rafaa Art Limited | Education | 2025 |
| Raiders IHC Limited | Arts & recreation | 2024 |
| Rake Associates Limited | Information & communication | 2004 |
| Ralliance Technologies Limited | Information & communication | 2026 |
| Randal Ltd | Information & communication | 2016 |
| Range of Motion Gym Limited | Arts & recreation | 2019 |
| Rankilburn Consultancy Services Ltd | Information & communication | 2024 |
| Rapid Clearances Ltd | Water & waste | 2023 |
| Rapport Property Limited | Administrative & support | 2015 |
| Rare and Original Ltd | Wholesale & retail | 2026 |
| Rare Kicks UK Ltd | Wholesale & retail | 2022 |
| Raspberry Flare Ltd | Professional & scientific | 2018 |
| Raspberry Moon Limited | Information & communication | 2012 |
| Raspberry Sun Limited | Real estate | 2025 |
| Rate Financial Ltd | Financial services | 2022 |
| Rattenbury Investments Ltd | Real estate | 2018 |