| Razors Edge Barber Shop Limited | Other services | 2020 |
| RE Building Services Ltd | Construction | 2025 |
| Re&Sg Limited | Health & social care | 2026 |
| Reach Enablement Services Limited | Health & social care | 2005 |
| Reach Housing and Enablement Services Limited | Real estate | 2003 |
| Reach Housing Limited | Health & social care | 2005 |
| Recast Ltd | Information & communication | 2005 |
| Reconfigure IT Limited | Information & communication | 2026 |
| Red Cat Innovations Limited | Information & communication | 2019 |
| Red Dog Developments Limited | Construction | 2023 |
| Red River Ltd | Hospitality | 2025 |
| Red to Green Care Solutions Limited | Health & social care | 2023 |
| Refined Home Living Limited | Wholesale & retail | 2024 |
| Regal Fire Limited | Public administration | 2002 |
| Reignj Ltd | Professional & scientific | 2026 |
| Reika Bags Ltd | Manufacturing | 2018 |
| Reliable Healthcare and Support Services Ltd | Health & social care | 2024 |
| Remies Collections Ltd | Wholesale & retail | 2024 |
| Rendezvous Cafe Bar C.I.C. | Hospitality | 2023 |
| Renew Aesthetic Clinic Mansfield Limited | Other services | 2025 |
| Reptilian Encounters Ltd | Agriculture & fishing | 2024 |
| Responder Resilience CIC | Health & social care | 2016 |
| Retail Packaging Solutions Limited | Wholesale & retail | 2006 |
| Revosol Ltd | Professional & scientific | 2025 |
| Rhodes and Balkwill Gaming Limited | Other services | 2026 |
| RHS Tiling Services Ltd | Construction | 2025 |
| RI Blow Topco Limited | Financial services | 2024 |
| Richard Rice Joinery Services Limited | Construction | 2013 |
| Rictat Limited | Administrative & support | 2010 |
| Ridgewood Property Investments Limited | Extraterritorial | 2016 |
| Right Call Recruitment Ltd | Administrative & support | 2025 |
| Right Choice Company (GOC) Ltd | Administrative & support | 2024 |
| Right Choice Plumbing & Heating Ltd | Construction | 2018 |
| Riley & Co (Mansfield) Holdings Limited | Administrative & support | 2016 |
| RIM Reaperz Ltd | Wholesale & retail | 2026 |
| Rise Rental Properties Ltd | Real estate | 2026 |
| Rjts and Sons Limited | Education | 2016 |
| RL Group Holdings Ltd | Wholesale & retail | 2025 |
| RLB Mobile Ltd | Other services | 2025 |
| RMJ PVT Ltd | Wholesale & retail | 2020 |
| RN & BJ Investments Limited | Real estate | 2022 |
| Roadways Logistics (Midlands) Ltd | Transport & logistics | 2020 |
| Robinson Electical Limited | Energy | 2025 |
| Robinson's Paver Hire Limited | Construction | 2011 |
| Rocket HQ Ltd | Wholesale & retail | 2025 |
| Roland Arms Aston Limited | Hospitality | 2019 |
| Romo (Holdings) Limited | Wholesale & retail | 1991 |
| Romo Limited | Wholesale & retail | 1944 |
| Roofsol U.K. Limited | Construction | 2023 |
| Room TCG Limited | Wholesale & retail | 2025 |
| Rose Bower Limited | Wholesale & retail | 2003 |
| Rosie Smith Electrical & Property Services Ltd | Manufacturing | 2023 |
| Rotari Bakes Limited | Manufacturing | 2025 |
| Rotec Rotating Electrics Limited | Manufacturing | 2003 |
| Roundhill Consultancy Limited | Professional & scientific | 2024 |
| Route Forty Five Holidays Ltd | Administrative & support | 2024 |
| ROW Z Sports Limited | Professional & scientific | 2025 |
| ROY ALL Double Glaze Ashfield Ltd | Construction | 2025 |
| Royale Cuisines Limited | Construction | 2017 |
| RPH Boilers Limited | Construction | 2024 |
| RPH Civils Limited | Construction | 2023 |
| RPH Group Limited | Financial services | 2023 |
| RPH Home Services Limited | Construction | 2025 |
| RPH Plant Limited | Construction | 2023 |
| RS Baby Ltd | Wholesale & retail | 2021 |
| RS BIO ENG Ltd | Manufacturing | 2024 |
| Rtsc Limited | Water & waste | 2009 |
| Rufc Serviced Accommodation Ltd | Hospitality | 2022 |
| RUGWORLD1 Limited | Wholesale & retail | 2020 |
| Rumbles @ the Lawn Community Interest Company | Hospitality | 2008 |
| Rural Missions Ltd | Other services | 1989 |
| Russell & Booth Plumbing & Heating Ltd | Construction | 2021 |
| Ruston Publican Limited | Hospitality | 2025 |
| Rusty Autos Limited | Wholesale & retail | 2019 |
| RVT Transport Ltd | Transport & logistics | 2016 |
| RXM Custom Limited | Wholesale & retail | 2019 |
| Ryan Commercial Construction Services Ltd | Professional & scientific | 2020 |
| Ryan Fenton PPC Limited | Professional & scientific | 2022 |
| S 3 Contracts Limited | Construction | 2012 |
| S D Referrals Limited | Other services | 2023 |
| S Mayes Limited | Construction | 2005 |
| S S Gill Motors Ltd | Wholesale & retail | 2021 |
| S&S House of Hair Ltd | Other services | 2020 |
| S.Commons & Sons Electrical Ltd | Construction | 2024 |
| S.D. Products Limited | Wholesale & retail | 1985 |
| Sacred Earth CIC | Other services | 2023 |
| Safi Trans Ltd | Transport & logistics | 2025 |
| Safron Groundcare Limited | Administrative & support | 2022 |
| SAI Pavithram Ltd | Real estate | 2026 |
| Sajane Limited | Health & social care | 2015 |
| Sales Assistance Limited | Wholesale & retail | 2002 |
| SAM Skidmore Holdings Ltd | Professional & scientific | 2021 |
| Sandasy Heart Ltd | Health & social care | 2022 |
| Santillo Solutions Ltd. | Health & social care | 2017 |
| Santu's Plaza Limited | Hospitality | 2026 |
| Sapphire Wave Limited | Health & social care | 2026 |
| Sarico (Yorkshire) Ltd | Construction | 2023 |
| Sarico E-Commerce Stores Ltd | Wholesale & retail | 2026 |
| SC Stoneyford Ltd | Health & social care | 2023 |
| Scaffolding Group Limited | Construction | 2003 |