| Richmond Financial Advice Ltd | Financial services | 2024 |
| Richmond Wills & Probate Ltd | Professional & scientific | 2024 |
| Rickman Ltd | Administrative & support | 2016 |
| Ridesmiths Limited | Transport & logistics | 2014 |
| Ridgecare Roofing Ltd | Construction | 2023 |
| Ridgeline Construction Ltd | Construction | 2025 |
| Rift Accountancy Ltd | Construction | 2020 |
| Rift Accounting Ltd | Construction | 2020 |
| Rift Accounting Services Ltd | Construction | 2020 |
| Rift Enterprise Ltd | Professional & scientific | 2021 |
| Rift Experts Limited | Professional & scientific | 2024 |
| Rift Group Limited | Financial services | 2024 |
| Rift Innovations Ltd | Professional & scientific | 2015 |
| Rift Limited | Professional & scientific | 2000 |
| Rift Professional Sports Limited | Professional & scientific | 2006 |
| Rift Returns Limited | Professional & scientific | 2024 |
| Rift Services Limited | Professional & scientific | 2022 |
| Rift Social Enterprise CIC | Education | 2025 |
| Rift Social Reform Community Interest Company | Education | 2018 |
| Right NOW Group Limited | Administrative & support | 2017 |
| Right Way Cleaning Limited | Administrative & support | 2024 |
| Righteous Oaks CIC | Education | 2026 |
| Rightval Limited | Information & communication | 2020 |
| RIL Properties Limited | Real estate | 2019 |
| Riley Accounting Services Limited | Professional & scientific | 2008 |
| Rillos U.K. Limited | Real estate | 2024 |
| Rimstyle Ltd. | Wholesale & retail | 2005 |
| RIN Services Ltd | Transport & logistics | 2013 |
| Ringles Limited | Real estate | 2004 |
| Rinto Engineering Ltd | Construction | 2016 |
| Rinz Tech Limited | Wholesale & retail | 2019 |
| RIO Nutrition Ltd | Wholesale & retail | 2025 |
| Ripley Technical Services Ltd | Information & communication | 2021 |
| Ripleys Garden Centre Limited | Wholesale & retail | 2019 |
| Ripleys Kent Ltd | Transport & logistics | 2025 |
| Rippedlikethis Ltd | Arts & recreation | 2025 |
| RIQ Bourne Limited | Construction | 2025 |
| Rise and Shine Cleaning Services Limited | Administrative & support | 2008 |
| Rise Human Resources Limited | Administrative & support | 2020 |
| Rising Fives Ltd | Health & social care | 2021 |
| Risus IT Services Ltd | Information & communication | 2024 |
| Rita's Curries Limited | Hospitality | 2026 |
| Ritchie Charlton Ltd | Manufacturing | 2020 |
| Ritecom Limited | Manufacturing | 2003 |
| Ritoweg Farm Ltd | Transport & logistics | 2011 |
| Riva Clinic Ltd | Health & social care | 2025 |
| Rivendell Cabinetry Limited | Manufacturing | 2022 |
| River Crane Consulting Limited | Financial services | 2024 |
| Riverfield Property Limited | Construction | 2023 |
| Rivers Building & Design Ltd | Extraterritorial | 2009 |
| Riverside Carpentry Ltd | Construction | 2021 |
| Riverside Catering Limited | Extraterritorial | 2016 |
| Riverview Haulage Ltd | Transport & logistics | 2026 |
| Rivolta Property Ltd | Real estate | 2022 |
| RIZ Barber Shop Ltd | Administrative & support | 2016 |
| RJ Baldock Limited | Arts & recreation | 2016 |
| RJB Agri Ltd | Agriculture & fishing | 2025 |
| RJB Planning Consultancy Limited | Professional & scientific | 2021 |
| RJL Brand Strategy Ltd | Professional & scientific | 2025 |
| RJP Architects Ltd | Professional & scientific | 2018 |
| Rjsb Ltd | Transport & logistics | 2026 |
| RJT Builders Limited | Construction | 2017 |
| RJT Properties Limited | Real estate | 2011 |
| RK Consulting (EOD) Limited | Professional & scientific | 2021 |
| RK Group Retail Ltd. | Wholesale & retail | 2025 |
| RK Resource Limited | Arts & recreation | 2024 |
| RK Spice Ltd | Hospitality | 2026 |
| RKH Service and Repair Ltd | Wholesale & retail | 2016 |
| RKR Services (Kent) Limited | Construction | 2018 |
| Rksc Developers Limited | Real estate | 2025 |
| Rl&A Properties Ltd | Real estate | 2019 |
| RLG Farms Limited | Extraterritorial | 2012 |
| RLS Film Ltd | Information & communication | 2025 |
| RLS Production Ltd | Information & communication | 2025 |
| RM Flow Limited | Information & communication | 2026 |
| RM Taylor Consultancy Ltd | Professional & scientific | 2022 |
| RMF Bespoke Limited | Construction | 2022 |
| RMJ Dynamics Limited | Professional & scientific | 2019 |
| Rmkc Consulting Limited | Information & communication | 2024 |
| RML Construction Consultancy Limited | Professional & scientific | 2022 |
| RMS Construction Ltd | Construction | 2021 |
| RN Melanie Houghton Limited | Health & social care | 2026 |
| Road Legal Limited | Professional & scientific | 2023 |
| Road Runners (Kent) Limited | Wholesale & retail | 2003 |
| Roadel Rail Services Ltd | Transport & logistics | 2018 |
| Roadmac Surfacing Ltd | Construction | 2021 |
| Roadmarking Excel Ltd | Construction | 2012 |
| Roadside Rescue Limited | Wholesale & retail | 2003 |
| Roar IT Services Limited | Information & communication | 2023 |
| ROB Mercer Transport Limited | Transport & logistics | 2001 |
| ROB Snell Lighting Limited | Information & communication | 2016 |
| ROB Webber Limited | Professional & scientific | 2024 |
| Robbo Academy Ltd | Education | 2012 |
| Robboboys Ltd | Real estate | 2021 |
| Robella Property Ltd | Real estate | 2019 |
| Robert Austen Limited | Construction | 2007 |
| Robert Smith Fencing Solutions Ltd | Administrative & support | 2017 |
| Robert Wraight Limited | Wholesale & retail | 1986 |
| Robhurst Aviation Limited | Manufacturing | 2019 |
| Robhurst Estates Limited | Agriculture & fishing | 2024 |