| Richmond Doors Ltd | Construction | 2020 |
| Richmond Electrical Services Ltd | Construction | 2019 |
| Richmond Oak Conservatories Limited | Construction | 2008 |
| Richmond Oak Glazed Extensions Ltd | Construction | 2020 |
| Richmond Park Education Limited | Education | 2000 |
| Richmond Sports Podiatry Ltd | Health & social care | 2019 |
| Ricky Corner Limited | Wholesale & retail | 2021 |
| Ridgeland Limited | Construction | 2025 |
| Ridgeline Productions Ltd | Professional & scientific | 2022 |
| Ridgewood Care Limited | Health & social care | 2002 |
| Rier London Ltd | Wholesale & retail | 2025 |
| Rifcare Ltd | Wholesale & retail | 2023 |
| Rigger ROW Management Services Limited | Administrative & support | 2004 |
| Rigsdaler Specie Ltd | Professional & scientific | 2024 |
| Rilian International Limited | Administrative & support | 2019 |
| Rill Finance Limited | Financial services | 2026 |
| Rilledge Software Ltd | Information & communication | 2019 |
| Ringside Boxing Ltd | Wholesale & retail | 2002 |
| Ringside Worldwide Limited | Wholesale & retail | 2009 |
| Rinovia Works Ltd | Professional & scientific | 2025 |
| Rinse Refills Ltd | Wholesale & retail | 2023 |
| Rintel Ltd | Professional & scientific | 2012 |
| Rinwood Limited | Administrative & support | 2002 |
| Ripa Residents Society Limited | Households | 1979 |
| Ripido Ltd | Wholesale & retail | 2025 |
| Rippon Communications Ltd | Professional & scientific | 2026 |
| Risk & Regs Consulting Limited | Professional & scientific | 2025 |
| Risk Optimised Whole Life Cycle Costing (Riskoptwlc) CIC | Information & communication | 2021 |
| Risk Vector Advisory Limited | Information & communication | 2025 |
| Rivaaj Foods Ltd | Wholesale & retail | 2025 |
| River and Park Limited | Wholesale & retail | 2020 |
| River Court (1985) Limited | Households | 1985 |
| River Park Records Ltd | Information & communication | 2024 |
| River Reach Management Co. Limited | Administrative & support | 1995 |
| Riverlabs Ltd | Professional & scientific | 2020 |
| Rivermead Close a RTM Company Limited | Households | 2024 |
| Rivermead Close B RTM Company Limited | Households | 2024 |
| Rivermead Close C RTM Company Limited | Households | 2024 |
| Rivermead Close D RTM Company Limited | Households | 2024 |
| Riversfork Consulting Ltd | Professional & scientific | 2021 |
| Riverside Law Studios Limited | Professional & scientific | 2016 |
| Riverside Property Services & Construction Ltd | Construction | 2024 |
| Riverside Residential Management Ltd | Real estate | 2024 |
| Riziko Solutions Ltd | Financial services | 2013 |
| Rjaf Capital Limited | Financial services | 2020 |
| RJC Music Ltd | Information & communication | 2011 |
| RJS Event Services Ltd | Professional & scientific | 2024 |
| RLS Friendship Limited | Education | 2018 |
| RM Management Consulting Limited | Professional & scientific | 2014 |
| RMI UK Global Clean Energy Solutions Ltd | Professional & scientific | 2025 |
| RMP Irrigation Ltd | Administrative & support | 2020 |
| RN Financial Consulting Limited | Professional & scientific | 2012 |
| Robert Biggs Associates Limited | Administrative & support | 2002 |
| Robert Emergency Electrician Ltd | Construction | 2026 |
| Robert London Design Limited | Administrative & support | 2016 |
| Robotrax Limited | Administrative & support | 2012 |
| Rockhaven Homes Limited | Construction | 2018 |
| Rockhopper Locks Ltd | Administrative & support | 2021 |
| Rockmond Limited | Professional & scientific | 2024 |
| Rocwood Development Ltd | Construction | 2026 |
| Rocwood Group Ltd | Financial services | 2026 |
| Rodger That Limited | Information & communication | 2021 |
| Rodsway Limited | Professional & scientific | 2003 |
| Roelofs Coaching & Consulting Solutions Ltd | Professional & scientific | 2025 |
| Roger Kingdom's Sourdough Company Ltd | Manufacturing | 2025 |
| ROGERS14050 Limited | Information & communication | 2023 |
| ROI Performance Ltd | Professional & scientific | 2014 |
| Rokeby School Trading Limited | Transport & logistics | 2024 |
| Rollingstock Films Limited | Information & communication | 2018 |
| Romeo Alpha Kilo Sierra Ltd | Administrative & support | 2017 |
| Roof AID Home Improvement Ltd | Construction | 2025 |
| Roosevelt Bidco Limited | Professional & scientific | 2019 |
| Rootform Ltd | Manufacturing | 2026 |
| Ropeguys Ltd | Construction | 2023 |
| Roper Quaich Limited | Administrative & support | 2024 |
| Rosa Developments Ltd | Real estate | 2017 |
| Rosanne House Residents Limited | Households | 2010 |
| Rose Bay Risk Management Limited | Professional & scientific | 2018 |
| Rose Hill Grove Limited | Professional & scientific | 2022 |
| Rose Lion Takeaway Ltd | Hospitality | 2021 |
| Rose Park Day Nursery Ltd | Health & social care | 2016 |
| Rose Theatre Enterprises Limited | Arts & recreation | 2008 |
| Rose&Bees Ltd | Manufacturing | 2020 |
| Roselodge Village Limited | Construction | 2014 |
| Roseta Ltd | Wholesale & retail | 2006 |
| Rosewall Court (Wimbledon) Limited | Households | 1993 |
| Rosewell Investments Limited | Financial services | 2009 |
| Roshanzar Limited | Wholesale & retail | 2024 |
| Rosslyn House Management Ltd | Households | 1988 |
| Rostrevor Flats Limited | Households | 1994 |
| Rotary Works Ltd | Manufacturing | 2022 |
| Rothley Investments Limited | Administrative & support | 2017 |
| Rothley Marketing Ltd | Administrative & support | 2023 |
| Rotoform (UK) Limited | Information & communication | 2019 |
| Rotolight Technologies Limited | Extraterritorial | 2021 |
| Rowena Bevan Limited | Health & social care | 2010 |
| Rowman Empire Ltd | Real estate | 2024 |
| Royale Development Group Ltd | Construction | 2024 |
| Royston Industries Limited | Administrative & support | 1997 |
| Rozana Limited | Hospitality | 2007 |