| Purple Void Ltd | Information & communication | 2025 |
| Pursavvy Ltd | Wholesale & retail | 2025 |
| Purvinis Logistics Services Ltd | Transport & logistics | 2016 |
| Pusha Clean and Construct Ltd | Construction | 2025 |
| Pushti Properties 1 Limited | Real estate | 2024 |
| PV Filipov Ltd | Construction | 2017 |
| PVP Communications Limited | Information & communication | 2011 |
| PVS Leisure Limited | Hospitality | 2002 |
| PW Promotions Limited | Arts & recreation | 2015 |
| PWS Finishing Limited | Manufacturing | 2006 |
| PWT Group UK Ltd | Construction | 2025 |
| Pykalo Contracts Limited | Construction | 2015 |
| Pyramid Cleaners Limited | Other services | 2013 |
| Pyramid Learners Limited | Education | 2018 |
| Pyramid Technologies Solutions Limited | Construction | 2024 |
| Pyrenees Holding Ltd | Financial services | 2022 |
| Pyrite Consultants Ltd | Real estate | 2023 |
| Q & a Estates Ltd | Real estate | 2021 |
| Q Eco Ltd | Energy | 2023 |
| Q M R Recruitment Limited | Administrative & support | 2011 |
| Q&S (London) Ltd | Hospitality | 2010 |
| Q&S Investments Ltd | Wholesale & retail | 2020 |
| Q1 Cobham Limited | Construction | 2017 |
| Q15 Ltd | Construction | 2025 |
| Q6FM Limited | Construction | 2006 |
| QA Certified Accountants & Tax Advisors Ltd | Professional & scientific | 2017 |
| QA Prime Store Ltd | Wholesale & retail | 2025 |
| Qaah Ltd | Wholesale & retail | 2025 |
| Qaff Consultants Limited | Professional & scientific | 2014 |
| Qagco Limited | Professional & scientific | 2017 |
| Qaim Limited | Health & social care | 2013 |
| Qais Consulting Limited | Information & communication | 2018 |
| QAJ Management Limited | Real estate | 2012 |
| Qakh Consultancy Group Ltd | Information & communication | 2026 |
| Qarboök Technologies Ltd | Administrative & support | 2016 |
| Qarni Limited | Wholesale & retail | 2025 |
| Qarnism Systems Limited | Information & communication | 2017 |
| Qarri Enterprise Ltd | Construction | 2024 |
| Qaskal Limited | Wholesale & retail | 2020 |
| Qasva Ltd | Information & communication | 2015 |
| Qaswa Construction Limited | Construction | 2023 |
| Qatar Airways INT Service Ltd | Transport & logistics | 2025 |
| Qatar Holdings Limited | Real estate | 2019 |
| Qazi Habib Real Estate Ltd | Real estate | 2024 |
| Qazitex Limited | Wholesale & retail | 2023 |
| QB Financial Services Ltd | Financial services | 2025 |
| Qbotic AI Limited | Information & communication | 2022 |
| QC Group Ltd | Wholesale & retail | 2017 |
| QC London Limited | Transport & logistics | 2026 |
| Qeng Limited | Real estate | 2012 |
| Qiti Engineering Limited | Information & communication | 2014 |
| QJ Healthcare Limited | Wholesale & retail | 2018 |
| Qlasik Ltd | Wholesale & retail | 2025 |
| QMU PI Ltd | Real estate | 2025 |
| QNP Limited | Administrative & support | 2025 |
| QNT Retail Ltd | Wholesale & retail | 2024 |
| Qooraf Ltd | Wholesale & retail | 2023 |
| Qourtland Aven Ltd | Real estate | 2021 |
| Qpcorp Ltd | Real estate | 2019 |
| QQ12 Limited | Wholesale & retail | 2016 |
| QR Kapital Ltd | Households | 2021 |
| QRS Enterprise Ltd | Wholesale & retail | 2021 |
| QS Taverns Northwich Ltd | Hospitality | 2019 |
| QSS Holdings Ltd | Real estate | 2022 |
| Qswa Ltd | Information & communication | 2026 |
| Quad Professional Services Ltd | Professional & scientific | 2011 |
| Quadrant Land Developments Ltd | Construction | 2018 |
| Quadvox Ltd | Transport & logistics | 2018 |
| Quaid Costing Services Ltd | Professional & scientific | 2019 |
| Qualitas Cleaning Limited | Administrative & support | 2024 |
| Qualitee Art Ltd | Manufacturing | 2022 |
| Qualitees Apparels Ltd | Wholesale & retail | 2020 |
| Quality Care Link Ltd | Health & social care | 2023 |
| Quality Cars Hub Limited | Wholesale & retail | 2024 |
| Quality Choco Desserts Ltd | Manufacturing | 2025 |
| Quality Clothing Ltd | Wholesale & retail | 2021 |
| Quality Construct Ltd | Construction | 2019 |
| Quality Fixing Marble Ltd | Construction | 2016 |
| Quality Halal Meat & Grocer Limited | Wholesale & retail | 2012 |
| Quality Indigo Ltd | Real estate | 2022 |
| Quality Intuition Limited | Professional & scientific | 2010 |
| Quality Leads Ltd | Information & communication | 2022 |
| Quality Packaging Ltd | Wholesale & retail | 2023 |
| Quality Precision Leeds Limited | Administrative & support | 2026 |
| Quality Process Limited | Information & communication | 2019 |
| Qualityworks Consulting Ltd | Information & communication | 2023 |
| Qualtros Limited | Information & communication | 2023 |
| Quant AI Solutions Limited | Wholesale & retail | 2024 |
| Quanta Visuals Ltd | Administrative & support | 2023 |
| Quantapulse Ltd | Wholesale & retail | 2025 |
| Quantis Technology Solutions Ltd | Information & communication | 2024 |
| Quantum ALE Construction Ltd | Construction | 2021 |
| Quantum ATS Limited | Professional & scientific | 2010 |
| Quantum Financial Planning Limited | Administrative & support | 2024 |
| Quantum Offices Ltd | Administrative & support | 2021 |
| Quantum Properties & Services Ltd | Households | 2020 |
| Quantyx Ltd | Professional & scientific | 2026 |
| Quantyx Tech Solutions Ltd | Information & communication | 2026 |
| Quarryhill Ltd | Construction | 2007 |
| Quartetto International Ltd | Information & communication | 2011 |