| Renshaw Walton Medical Limited | Health & social care | 2017 |
| Repro Engineering Services Limited | Manufacturing | 2008 |
| Repton Electrical Ltd | Construction | 2025 |
| Repton Grange Residents Management Company Limited | Households | 2015 |
| Reputation Windows Ltd | Construction | 2019 |
| Resource Matters Limited | Administrative & support | 2009 |
| Restronguet Yacht Basin Limited | Professional & scientific | 2017 |
| Returnit Ltd | Administrative & support | 2023 |
| Revive Property Services Limited | Construction | 2013 |
| Reynolds & Fern Limited | Construction | 2003 |
| RH Electrical (Swadlincote) Limited | Construction | 2018 |
| RH Food Swad Ltd | Hospitality | 2026 |
| Rhino Brickwork and Scaffold Limited | Construction | 2024 |
| Rhinog Plant Limited | Construction | 2021 |
| RHN Couriers Ltd | Transport & logistics | 2014 |
| Rich Adventure Limited | Education | 2012 |
| Rich Medical Solutions Limited | Education | 2023 |
| Rich Perry Tattoo Ltd | Other services | 2019 |
| RICHS2ROMAN Ltd | Wholesale & retail | 2025 |
| Riders Association of Triumph Limited | Arts & recreation | 1996 |
| Ridgacre Ltd | Professional & scientific | 2022 |
| Ridgway Corporation Limited | Construction | 2013 |
| Riding the LOW Limited | Information & communication | 2021 |
| Rigby Mews (Saunderton) Management Company Limited | Households | 2020 |
| Rightfirsttime Consultants Ltd | Professional & scientific | 2018 |
| Rightway Cleaning Solutions Limited | Administrative & support | 2010 |
| Rightway Greencare Ltd | Administrative & support | 2022 |
| Ripley’S Autos Ltd | Wholesale & retail | 2018 |
| Riskfire Ltd | Public administration | 2024 |
| Riva Aggregate Ltd | Transport & logistics | 2020 |
| Riva Pearl Holdings Ltd | Transport & logistics | 2022 |
| Riva Recovery Ltd | Transport & logistics | 2020 |
| Riva Recycle Ltd | Water & waste | 2022 |
| Riva Transport Pro Ltd | Transport & logistics | 2025 |
| Riva Tyres Ltd | Manufacturing | 2020 |
| River Mease Homes Limited | Hospitality | 1990 |
| River View Oundle Residents Management Company Limited | Households | 2025 |
| Riverside Management (Market Rasen) Limited | Hospitality | 2002 |
| Rivoli Properties Ltd | Construction | 2024 |
| Rivoli Stays Ltd | Real estate | 2025 |
| Rivsien Ltd | Wholesale & retail | 2026 |
| RJ Mech Limited | Professional & scientific | 2025 |
| RJM Accountancy Limited | Professional & scientific | 2005 |
| RJM Business Management Ltd | Professional & scientific | 1988 |
| RKB Design Ltd | Professional & scientific | 2023 |
| RM Aviation Services Limited | Transport & logistics | 2025 |
| RM Design Studio Limited | Arts & recreation | 2026 |
| Rmbs Properties Limited | Real estate | 2019 |
| RNM Healthcare Limited | Health & social care | 2023 |
| RNR Tiling Specialists Ltd | Construction | 2025 |
| Roads and Runways Lighting and Communications Ltd | Construction | 2018 |
| Roavie Ltd | Manufacturing | 2026 |
| Robert Lewis Signs Limited | Manufacturing | 2003 |
| Robeys Corporate Installations & Removals Ltd | Manufacturing | 2024 |
| Robin Hood Metals Limited | Wholesale & retail | 1994 |
| Robin's Heating and Plumbing Services Ltd | Construction | 2016 |
| Robinia (Tamworth) Management Company Limited | Households | 2019 |
| Rocco Media Limited | Information & communication | 2013 |
| Rockers Reunited Limited | Administrative & support | 2014 |
| Rockers Reunited Outdoor Festivals Ltd | Administrative & support | 2025 |
| Roger Bullivant Limited | Construction | 2011 |
| Rogers Automotives Ltd | Wholesale & retail | 2024 |
| Rogueworx Ltd | Other services | 2019 |
| Ronin Combat & Fitness Ltd | Arts & recreation | 2025 |
| Roof to Roof Limited | Construction | 2025 |
| Roof Windows 4 YOU Limited | Extraterritorial | 2019 |
| Root & Grain Hub Limited | Hospitality | 2011 |
| Roots & Wings Care Ltd | Health & social care | 2025 |
| Rosbercol Ltd | Professional & scientific | 2025 |
| Rose House Funeral Supplies Ltd | Other services | 2007 |
| Rose House Holdings Limited | Financial services | 2025 |
| Roseacre Developments (UK) Limited | Construction | 2021 |
| Rosscomm Ltd | Construction | 2012 |
| Rotate Distribution Limited | Wholesale & retail | 2012 |
| Round Land Developments Ltd | Real estate | 2016 |
| ROY Dennies Signs Limited | Wholesale & retail | 2003 |
| RPP Commercials Ltd | Manufacturing | 2025 |
| RPP Transport Ltd | Transport & logistics | 2025 |
| RPS Scaffolding Midlands Limited | Construction | 2022 |
| RR Property Partners Ltd | Real estate | 2023 |
| RS Property and Garden Services Ltd | Administrative & support | 2021 |
| Ruby Trans Ltd | Transport & logistics | 2016 |
| Rudge and Holloway Ltd | Construction | 2014 |
| Russ IT Solutions Limited | Administrative & support | 2014 |
| Rusty Logistics Ltd | Transport & logistics | 2025 |
| Rutkowski Ltd | Transport & logistics | 2012 |
| RWR Ltd | Transport & logistics | 2025 |
| Ryan Timothy Matts Mechanical Services Ltd | Manufacturing | 2020 |
| Rynek Trans Ltd | Transport & logistics | 2022 |
| S & N Scaffolding (Midlands) Limited | Construction | 2010 |
| S & W Mobility Services Limited | Construction | 2013 |
| S Bull Electrical Limited | Construction | 2021 |
| S C I Electrical Contractors Limited | Construction | 2006 |
| S Colliers Butchers Limited | Wholesale & retail | 2014 |
| S I R Retail Ltd | Wholesale & retail | 2024 |
| S K Plumbing Ltd | Construction | 2021 |
| S L Welding Services Limited | Construction | 2021 |
| S Walt Plumbing Services Ltd | Construction | 2024 |
| S&D Associates Ltd | Wholesale & retail | 2023 |
| S&F Roofing Ltd | Construction | 2026 |