| Q1 Tiles Limited | Wholesale & retail | 2021 |
| Qinnessette Ltd | Construction | 2011 |
| QT UK Property Investment Limited | Real estate | 2021 |
| Qualifyme Limited | Professional & scientific | 2009 |
| Queenstown Bathrooms Limited | Wholesale & retail | 1960 |
| R Ford Film and Broadcast Limited | Information & communication | 2006 |
| R J Senior & Sons Ltd | Construction | 2008 |
| R Wattson Electrical Ltd | Construction | 2023 |
| R&A Traders Ltd | Wholesale & retail | 2018 |
| R&M Conservation & Lake Construction Design Ltd | Administrative & support | 2009 |
| R&S Professional Ltd | Wholesale & retail | 2024 |
| R3 Garage Services Limited | Wholesale & retail | 2017 |
| Radostin Limited | Construction | 2009 |
| RAF Estates Ltd | Real estate | 2016 |
| Raihali Ltd | Wholesale & retail | 2025 |
| Ramillion Ltd | Wholesale & retail | 2025 |
| Ransom Close Management Limited | Households | 2026 |
| Raphael Contracting Limited | Construction | 1995 |
| Raphael Holdings Limited | Real estate | 2003 |
| RARING2GO! Esher Limited | Information & communication | 2012 |
| Rasmparfums Ltd | Wholesale & retail | 2025 |
| Ratherby Consulting Limited | Professional & scientific | 2019 |
| Ravens Court (Kingston) Residents Association Limited | Households | 1975 |
| RAW Mana Holdings Limited | Construction | 2017 |
| RB Cakes Ltd | Hospitality | 2025 |
| Rebeiz Caviar Limited | Wholesale & retail | 2026 |
| Recruiit Ltd | Administrative & support | 2018 |
| Recyco Tech Metals Limited | Wholesale & retail | 2025 |
| Redmond Consultancy Limited | Information & communication | 2011 |
| Redtech Electrical Ltd | Construction | 2019 |
| Reeves Renovations Limited | Construction | 2018 |
| Regal and Barnes Ltd | Wholesale & retail | 2016 |
| Relove Technology Limited | Other services | 2017 |
| Ressom Ltd | Professional & scientific | 2026 |
| Rest to Reset Limited | Health & social care | 2025 |
| Retail Republic Limited | Real estate | 2014 |
| Revelation Training and Development Ltd | Professional & scientific | 2024 |
| Revenue Matters LLP | | 2001 |
| Revival Enterprise Ltd | Wholesale & retail | 2022 |
| Revolvex Group Limited | Professional & scientific | 2022 |
| RH MEP Ltd | Construction | 2018 |
| Richard Wolf UK Limited | Wholesale & retail | 1979 |
| Richest Construction Ltd | Construction | 2021 |
| Richmond & KEW Chinese Language School Ltd | Education | 2026 |
| Richmond Estates Group Limited | Real estate | 2026 |
| Richmond Homes Ltd | Construction | 2012 |
| Rigging Lighting Services Ltd | Information & communication | 2011 |
| Rightsure Group Ltd | Financial services | 2024 |
| Rise Christian Radio Ltd | Information & communication | 2026 |
| Rithek Private Ltd | Information & communication | 2012 |
| Rittch Ltd | Construction | 2008 |
| Ritual Rise Ltd | Hospitality | 2026 |
| Riya Ealing News Ltd | Wholesale & retail | 2026 |
| Rizzi Building Contractors Limited | Construction | 2024 |
| RJE Consultancy Ltd | Professional & scientific | 2023 |
| RLS Building Services Ltd | Construction | 2022 |
| RMC Premium Build Limited | Construction | 2019 |
| Roach Accessories Ltd | Wholesale & retail | 2026 |
| Road to Eighteen Limited | Financial services | 2019 |
| Roast & Ground Limited | Wholesale & retail | 2002 |
| Roman & Co Builders Ltd | Construction | 2026 |
| Roman Stasiak Limited | Construction | 2011 |
| Romero Flooring Ltd | Construction | 2026 |
| Roses U RIX Ltd | Financial services | 2024 |
| Rossi Decor Limited | Construction | 2022 |
| Royalle Gourmet Ltd | Manufacturing | 2023 |
| RR Accounting Ltd | Professional & scientific | 2023 |
| RS Benefits Limited | Other services | 2025 |
| Rukas Vanguard Ltd | Wholesale & retail | 2025 |
| Runway Enterprise Ltd | Wholesale & retail | 2018 |
| Russell Parry ARC Limited | Wholesale & retail | 2002 |
| Rutland House Tenants Association Limited | Households | 2001 |
| Rutland Management (Surrey) Limited | Households | 1999 |
| Ruxley Holdings Limited | Professional & scientific | 1984 |
| Ruxley Place (West Ewell) Management Company Limited | Households | 2012 |
| RV Maintenance Shield Ltd | Other services | 2015 |
| RYM Administration Limited | Administrative & support | 2017 |
| S V Enterprise Ltd | Administrative & support | 2010 |
| S.M.W Electrical (UK) Ltd | Construction | 2014 |
| S2 Bespoke Ltd | Construction | 2026 |
| S2L Trading Limited | Wholesale & retail | 2017 |
| Saam Consulting Limited | Information & communication | 2005 |
| Saas Technology Consulting Ltd | Information & communication | 2018 |
| Safeguard Luxe Ltd | Arts & recreation | 2024 |
| Saferfaces Ltd | Information & communication | 2026 |
| Sagittal Pharma Consulting Ltd | Health & social care | 2024 |
| SAI Miracles Limited | Professional & scientific | 2019 |
| SAM Heffer Personal Training Limited | Arts & recreation | 2014 |
| Samara Developments Ltd | Real estate | 2024 |
| Samars Cakes Ltd | Wholesale & retail | 2019 |
| Samurai Cards Ltd | Wholesale & retail | 2025 |
| Saneeta Management Limited | Real estate | 2025 |
| Sapey Associates Limited | Other services | 2016 |
| Saphala Properties Limited | Real estate | 2026 |
| SAS Assist Ltd | Other services | 2018 |
| Sawd the Brand Limited | Wholesale & retail | 2021 |
| SB Cheerleading Ltd | Education | 2023 |
| SB Talent Ltd | Administrative & support | 2025 |
| SBM Platinum Cars Ltd | Transport & logistics | 2023 |
| SBS Specification Consultants Ltd | Wholesale & retail | 2026 |