| Retro Glide Rides Limited | Manufacturing | 2024 |
| Retro Leisure Ltd | Other services | 2022 |
| Retro Leisure Midlands Ltd | Manufacturing | 2013 |
| Retro Party Hire Ltd | Administrative & support | 2020 |
| Retrobreak Ltd | Information & communication | 2024 |
| Return to Home Solutions Ltd | Information & communication | 2020 |
| Return to Joy Therapy Ltd | Health & social care | 2024 |
| Return Travel Ltd | Administrative & support | 2023 |
| Rev-A Associates Limited | Real estate | 2017 |
| Revaltis Contracting Ltd | Administrative & support | 2018 |
| Revi Intelligence Ltd | Health & social care | 2025 |
| Revilo Brands Ltd | Wholesale & retail | 2025 |
| Revolve Recycling Ltd | Water & waste | 2021 |
| Rewards Services Limited | Construction | 2026 |
| REX Stevens Transport Limited | Transport & logistics | 1995 |
| RG 17 Properties Ltd | Real estate | 2023 |
| RG74 Ltd | Manufacturing | 2019 |
| RGP Properties Limited | Real estate | 2019 |
| RGT Training and Consultancy Limited | Administrative & support | 2013 |
| Rheinmetall BAE Systems Land Limited | Manufacturing | 1946 |
| Rhhp Holdings Ltd | Financial services | 2024 |
| Rhino Ramps Limited | Manufacturing | 2025 |
| Rhosneigr Developments Limited | Construction | 2024 |
| Rhosneigr Developments Management Ltd | Real estate | 2024 |
| RHT Consultants Limited | Real estate | 1990 |
| Rian's Dog Training Limited | Professional & scientific | 2018 |
| Ribakus Ltd | Other services | 2018 |
| Rich Sales Ltd | Wholesale & retail | 2022 |
| Richard Smith | Extraterritorial | 2002 |
| Richardson & Everall Limited | Wholesale & retail | 2023 |
| Ricks Environmental CIC | Education | 2025 |
| Ricoh UK Energy Limited | Energy | 2020 |
| Ricoh UK Products Limited | Manufacturing | 1983 |
| Ridesync Ltd | Transport & logistics | 2025 |
| Rigatoni's Pasta Limited | Hospitality | 2014 |
| Right Choice Housing C.I.C. | Hospitality | 2021 |
| Right Choice Roofing Contractors Ltd | Construction | 2024 |
| Right Choice Surfacing Ltd | Administrative & support | 2020 |
| Right Connections (UK) Limited | Wholesale & retail | 2003 |
| Rightcomms Limited | Information & communication | 2026 |
| Rihedo Cleaning Company Limited | Administrative & support | 2022 |
| Rikesh Bhatt Wealth Management Limited | Financial services | 2018 |
| Rimkay Limited | Wholesale & retail | 2013 |
| Rising 1 Ltd | Hospitality | 2025 |
| Rising Brains Limited | Professional & scientific | 2015 |
| Risk Assessment Consultants Ltd | Financial services | 2011 |
| Risk Free (UK) Limited | Information & communication | 1999 |
| Rite Tile UK Limited | Construction | 2013 |
| River Renovations Limited | Construction | 2020 |
| Riverskies Development Limited | Information & communication | 2014 |
| Riwab Ltd | Wholesale & retail | 2019 |
| Rizzo Hairdressing Limited | Other services | 2010 |
| RJ Workspace Ltd | Construction | 2024 |
| RJF Plumbing & Heating Limited | Construction | 2014 |
| RJM Entertainment Limited | Arts & recreation | 2023 |
| RK Law Limited | Professional & scientific | 2025 |
| RK Recruitment Limited | Administrative & support | 2004 |
| Rkms Property Ltd | Real estate | 2024 |
| RL2022 Pubco Ltd | Hospitality | 2022 |
| RLS Telford Properties Limited | Real estate | 2019 |
| RM Finance Ltd | Real estate | 2025 |
| Rm-Eshop Ltd | Wholesale & retail | 2025 |
| RMA Consultancy Services Ltd | Professional & scientific | 2025 |
| Rmex Ltd | Construction | 2018 |
| RMF (Landscaping) Limited | Construction | 1999 |
| RML Collectibles Ltd | Wholesale & retail | 2025 |
| Rmlm Holdings Ltd | Financial services | 2026 |
| RMS Historical Research Limited | Other services | 2019 |
| RMS Properties NE Limited | Real estate | 2024 |
| RN Jobforce Limited | Professional & scientific | 2025 |
| Road & Race Ltd | Wholesale & retail | 2015 |
| Road Bull Limited | Wholesale & retail | 2011 |
| Road Emulsion Association Limited | Other services | 1928 |
| Road to Logistics C.I.C. | Administrative & support | 2017 |
| Road Transport Training (Shropshire) Ltd | Transport & logistics | 2024 |
| Roal Healthcare Limited | Real estate | 2016 |
| Roar Martial Arts and Fitness Limited | Arts & recreation | 2024 |
| Roastwise Ltd | Wholesale & retail | 2025 |
| ROB Bryant Technical Services Ltd | Professional & scientific | 2019 |
| ROB Whitehouse Ltd | Information & communication | 2021 |
| Robert Gregory Jones Limited | Construction | 2011 |
| Robot & Drone Ltd | Information & communication | 2018 |
| Roboteer Automation Limited | Information & communication | 2023 |
| Robotics Design Maintenance Ltd | Professional & scientific | 2023 |
| ROC Centre Telford CIC | Health & social care | 2020 |
| Rocket Remaps Ltd | Wholesale & retail | 2019 |
| Rocket Swordfish Ltd | Arts & recreation | 2017 |
| Rockfield Investments Limited | Construction | 2025 |
| Roden Park (Holdings) Limited | Financial services | 2019 |
| Roden Poultry Limited | Agriculture & fishing | 2019 |
| Roden Water Supplies Limited | Water & waste | 2014 |
| Rodenhurst Hall Ltd | Agriculture & fishing | 2019 |
| Rodington Vineyard Ltd | Agriculture & fishing | 2014 |
| Rodizio Grill Limited | Hospitality | 2018 |
| Rodorf Ltd | Other services | 2018 |
| Rodriguez Events Ltd | Hospitality | 2023 |
| Rogers Agency Limited | Wholesale & retail | 2019 |
| Rogue Piercing Ltd | Manufacturing | 2019 |
| Rojeli Ltd | Health & social care | 2019 |
| Rollinson Smith and Company Limited | Financial services | 1974 |