| Regal Spice (Twickenham) Ltd | Hospitality | 2018 |
| Regalbuy Ltd | Wholesale & retail | 2025 |
| Regalionuk Ltd | Wholesale & retail | 2025 |
| Regant Trading Limited | Real estate | 2000 |
| Regina Hart Consultancy Services Limited | Information & communication | 2016 |
| Regional Therapeutic Homes Ltd | Health & social care | 2021 |
| Rehman & COM Ltd | Transport & logistics | 2023 |
| Reis BJJ Ltd | Arts & recreation | 2023 |
| Reliable Moving Services Limited | Transport & logistics | 2025 |
| Reliance Foods (UK) Limited | Hospitality | 2017 |
| REM PM Ltd | Real estate | 2025 |
| Renee Food & Wine Limited | Wholesale & retail | 2016 |
| Renovat Records Ltd | Manufacturing | 2023 |
| Reportify Limited | Information & communication | 2023 |
| Rered Project Management and Construction Ltd | Construction | 2018 |
| Resclean Ltd | Administrative & support | 2021 |
| Residence Realty Ltd | Real estate | 2024 |
| Residential Services London Limited | Real estate | 2019 |
| Resonant Design and Innovation Ltd | Information & communication | 2014 |
| Resource Allocation Limited | Financial services | 1983 |
| Retli Group Limited | Wholesale & retail | 2021 |
| Retro-Me Ltd | Professional & scientific | 2008 |
| Reva Dining Ltd | Hospitality | 2026 |
| Reversal of Fortune Limited | Information & communication | 2015 |
| Reverse Rights Limited | Information & communication | 2015 |
| Revitalise Technology Ltd | Wholesale & retail | 2019 |
| Revolver Productions Limited | Information & communication | 1991 |
| Revue International Film Festival CIC | Information & communication | 2025 |
| Rezaei Estates Limited | Real estate | 2026 |
| RFF Trading Limited | Arts & recreation | 2010 |
| RFU Injured Players Foundation | Health & social care | 2007 |
| RGH Social Work Limited | Health & social care | 2021 |
| Rhayston Limited | Construction | 2019 |
| RHO Flooring Ltd | Construction | 2023 |
| Richard Hollins & Associates Limited | Professional & scientific | 2009 |
| Richard Quinn Ltd | Arts & recreation | 2012 |
| Richly Sourced Ltd | Real estate | 2019 |
| Richmond & Twickenham Blinds Limited | Wholesale & retail | 2009 |
| Richmond Accounting & Finance Services Ltd | Professional & scientific | 2019 |
| Richmond Alliance Consulting Ltd | Professional & scientific | 2026 |
| Richmond Boat Hire Limited | Administrative & support | 2021 |
| Richmond Boatbuilders Ltd | Manufacturing | 2012 |
| Richmond Borough Mind | Health & social care | 2012 |
| Richmond Bridge Limited | Wholesale & retail | 2023 |
| Richmond Bridge MOT Limited | Wholesale & retail | 2010 |
| Richmond Chamber of Commerce Limited | Other services | 2011 |
| Richmond Dental Suite Limited | Health & social care | 2015 |
| Richmond Dermatology Ltd | Other services | 2015 |
| Richmond EAL Friendship Group Centre | Education | 2008 |
| Richmond Emporium Ltd | Wholesale & retail | 2024 |
| Richmond Football Academy Limited | Education | 2023 |
| Richmond Freewaterman's Turnway Society Limited | Professional & scientific | 2024 |
| Richmond Furniture Scheme | Wholesale & retail | 2009 |
| Richmond Green Construction Limited | Construction | 2025 |
| Richmond HMO Limited | Real estate | 2022 |
| Richmond Liquidity Management Limited | Financial services | 2017 |
| Richmond Lock Capital Limited | Financial services | 2023 |
| Richmond Osteopaths Limited | Health & social care | 2015 |
| Richmond Plumbing & Heating Limited | Construction | 2014 |
| Richmond Properties Solutions Limited | Real estate | 2023 |
| Richmond Psychosocial Foundation International | Health & social care | 2006 |
| Richmond Residential Limited | Real estate | 1998 |
| Richmond Skin&Laser Ltd | Other services | 2021 |
| Richmond Technology Solutions Ltd | Information & communication | 2025 |
| Richmond Training Hub Ltd | Education | 2014 |
| Richmond Tutoring Company Ltd | Education | 2025 |
| Ride Express Ltd | Transport & logistics | 2023 |
| Ridesmiths Group Ltd | Information & communication | 2025 |
| Ridesmiths Holdings Ltd | Financial services | 2025 |
| Riff Labs Limited | Information & communication | 2024 |
| Rigby and Marchant Ltd | Real estate | 2020 |
| Right Time Right Place the Movie Limited | Information & communication | 2016 |
| Riks Motors Ltd | Wholesale & retail | 2025 |
| Rina Management Limited | Other services | 2017 |
| Ringo and Floyd Limited | Information & communication | 2015 |
| Ringwalk Ltd | Arts & recreation | 2026 |
| Rinsaco Limited | Professional & scientific | 2013 |
| Ripe Recruitment Limited | Administrative & support | 2021 |
| Ripple Research Limited | Professional & scientific | 2023 |
| Ripplemaking Limited | Professional & scientific | 2012 |
| Risksoft Solutions Limited | Administrative & support | 1999 |
| Rivercourse Limited | Professional & scientific | 2012 |
| Riverdale Letting Ltd | Real estate | 2024 |
| Riverdale Services Limited | Professional & scientific | 2023 |
| Rivermeade Design Limited | Extraterritorial | 2012 |
| Rivermeade Limited | Extraterritorial | 2012 |
| Rivermeads Electrical Services Ltd | Other services | 2013 |
| Riverplace Ltd | Extraterritorial | 2013 |
| Riverside Audio Visual Ltd | Wholesale & retail | 2023 |
| Riverside Property Holdings Limited | Real estate | 2016 |
| Riverside Shop & Cafe Limited | Real estate | 2002 |
| Riverstore Limited | Construction | 2005 |
| Riverstream Limited | Professional & scientific | 2012 |
| Riverview Advisory Ltd | Professional & scientific | 2022 |
| Riverwharf Limited | Real estate | 2019 |
| Rivet Building Ltd | Construction | 2019 |
| Rivet Construction Ltd | Construction | 2017 |
| RIX Business Consultants Limited | Professional & scientific | 2017 |
| Rizidence Design Studio London Limited | Professional & scientific | 2024 |
| Rizidence Ltd | Real estate | 2016 |