| R.S. Freightline Ltd | Transport & logistics | 2026 |
| R.S.Nijjar Developments Limited | Construction | 2024 |
| R900 Crane Services Ltd | Construction | 2018 |
| RA Rental Properties Ltd | Real estate | 2020 |
| Raaje Fusion Limited | Information & communication | 2025 |
| Radmed Services Ltd | Health & social care | 2020 |
| Raducanu & Co’S Limited | Transport & logistics | 2019 |
| Rafique Transport Ltd | Transport & logistics | 2025 |
| Ragee & Anast Ltd | Wholesale & retail | 2023 |
| Ragee Ltd | Construction | 2024 |
| Rahman RMK Limited | Wholesale & retail | 2024 |
| Rahmans (Scunthorpe) Limited | Hospitality | 2014 |
| Rail Order Limited | Transport & logistics | 2013 |
| Rainbow Celebrants Limited | Administrative & support | 2021 |
| Rainton of Ashby Limited | Wholesale & retail | 1951 |
| Raisa Marius Transport Ltd | Transport & logistics | 2018 |
| Rajhd Ltd | Real estate | 2023 |
| Rall Property Management Ltd | Real estate | 2021 |
| Rall STL Ltd | Real estate | 2023 |
| Ramon & Larisa Ltd | Transport & logistics | 2022 |
| Rana Madani Surgeon Ltd | Health & social care | 2022 |
| Rangers Cafe ,Bar and Function Room Limited | Hospitality | 2023 |
| Raptor Repairs Ltd | Manufacturing | 2019 |
| Rareflow Limited | Information & communication | 2026 |
| RARES&EVA29 Ltd | Transport & logistics | 2023 |
| Rashiquel Locum Ltd | Wholesale & retail | 2020 |
| Raspin Construction Ltd | Construction | 2019 |
| Raspin Group Ltd | Professional & scientific | 2025 |
| Raul International Ltd | Wholesale & retail | 2024 |
| Rayathon Limited | Professional & scientific | 2022 |
| RB Rigging Ltd | Professional & scientific | 2025 |
| RBW Hub Ltd | Wholesale & retail | 2025 |
| RCB Leisure Ltd | Hospitality | 2018 |
| RCF Finance Limited | Financial services | 2020 |
| RCM Groundworks & Plant Limited | Professional & scientific | 2007 |
| RCS Lincs Ltd | Construction | 2018 |
| Rdas Imaging Limited | Health & social care | 2019 |
| Rdas Investments Limited | Real estate | 2022 |
| RDW Warehousing and Distribution Limited | Transport & logistics | 2018 |
| Real Steel Scunthorpe Limited | Other services | 2015 |
| Rebeka Limited | Transport & logistics | 2021 |
| Recovery Solutions Hull Ltd | Transport & logistics | 2015 |
| Recruit and Consult Lincs Ltd | Professional & scientific | 2017 |
| Recycle Solar Limited | Other services | 2016 |
| Recycle Solar Technologies Limited | Professional & scientific | 2017 |
| Red Coast Building Solutions Limited | Financial services | 2026 |
| Red Herring Event Services Limited | Administrative & support | 2006 |
| Redic Limited | Other services | 2023 |
| Redmond Construction Limited | Construction | 2010 |
| Redwood Medical Limited | Health & social care | 2017 |
| Redwood Pets Limited | Wholesale & retail | 2024 |
| Reed Commercials Limited | Wholesale & retail | 2016 |
| Reeds Recovery Limited | Manufacturing | 2021 |
| Reek Enterprises Ltd | Wholesale & retail | 2019 |
| Refrigeration Design & Draughting Services Limited | Professional & scientific | 2016 |
| Regain Aesthetic Limited | Other services | 2012 |
| Regain Properties Limited | Real estate | 2015 |
| Rehman Royale Estates Limited | Real estate | 2021 |
| Reidling Properties Ltd | Real estate | 2021 |
| Reign Signature Composites Ltd | Information & communication | 2012 |
| Rembee Limited | Professional & scientific | 2022 |
| Remi Logistic Transport Ltd | Transport & logistics | 2020 |
| Remsall Limited | Health & social care | 2023 |
| Rena N&B Limited | Wholesale & retail | 2017 |
| Rena Shop Fittings Ltd | Construction | 2021 |
| Rendered Fits Limited | Information & communication | 2025 |
| Rendura Rendering Systems Ltd | Construction | 2022 |
| Renovation & Design Ltd | Construction | 2023 |
| Rent a Unit Limited | Administrative & support | 2015 |
| Replenish Learning Ltd | Education | 2024 |
| Replenish Reach CIC | Public administration | 2026 |
| Resolution Television Limited | Information & communication | 2005 |
| Resource Pro Ltd | Information & communication | 2010 |
| Retro Entertainment Limited | Hospitality | 2020 |
| Revesby Court Management Limited | Real estate | 1977 |
| Revibe TRT Ltd | Health & social care | 2025 |
| Revitalise Care Limited | Health & social care | 2024 |
| Revitalise Medicines Limited | Wholesale & retail | 2024 |
| Revive Hair Solutions Limited | Other services | 2025 |
| Revolution Movies International Ltd | Information & communication | 2025 |
| Rexvia Limited | Real estate | 2014 |
| RGC Properties (UK) Limited | Real estate | 2002 |
| Rghvmfp Limited | Financial services | 2018 |
| RGN Quest Limited | Health & social care | 2025 |
| Rhino Elite Coatings Limited | Manufacturing | 2025 |
| RHLM03 Limited | Construction | 2026 |
| Rhoades Consultancy Ltd | Wholesale & retail | 2025 |
| Rhybel Limited | Real estate | 2023 |
| Riach Financial Ltd | Financial services | 2021 |
| RIC Supplies Limited | Manufacturing | 2026 |
| Richard Cooke Refrigeration Ltd | Manufacturing | 2016 |
| Richard Dean (2013) Limited | Extraterritorial | 2013 |
| Richard Dean Motor Engineers Limited | Wholesale & retail | 2004 |
| Richard Subden Insurance Consultants Limited | Financial services | 1999 |
| Richeli Limited | Administrative & support | 2025 |
| Richtoy Motorsport Limited | Wholesale & retail | 2001 |
| Rick M Automovers Ltd | Transport & logistics | 2023 |
| Rightaction Group Ltd | Financial services | 2017 |
| Rightaction Limited | Other services | 1986 |
| Rioco Site Services Limited | Construction | 2016 |