| Red Core Electrical Ltd | Construction | 2020 |
| Red Matter Systems Ltd | Information & communication | 2026 |
| Redditch United Football Club Limited | Arts & recreation | 1972 |
| Redditch United in the Community C.I.C. | Education | 2023 |
| Redhill Green Limited | Administrative & support | 2017 |
| Revops Hub Ltd | Professional & scientific | 2025 |
| RGF Capital Ltd | Professional & scientific | 2022 |
| Rhettgalvin Ltd | Professional & scientific | 2021 |
| Rhythm Recording Services Limited | Information & communication | 2011 |
| RI Property Ltd | Construction | 2025 |
| Riccicely Ltd | Transport & logistics | 2019 |
| Rich in Detail Ltd | Administrative & support | 2025 |
| Richard Dickson Property Consultancy Ltd | Professional & scientific | 2009 |
| Richard Fantom Eyecare Limited | Wholesale & retail | 2013 |
| Ridley Construction Ltd | Construction | 2014 |
| Right-Track Tree Surgery (Rtts) Ltd | Administrative & support | 2026 |
| Rightfields Development Ltd | Energy | 2014 |
| Rise Research Ltd | Other services | 2013 |
| Risk Learning Hub Ltd | Wholesale & retail | 2024 |
| River Arrow and Alne Revival CIC | Wholesale & retail | 2025 |
| RJ Wilber Limited | Professional & scientific | 2007 |
| RL Controls Ltd | Wholesale & retail | 2016 |
| RMD Consulting Services Limited | Administrative & support | 2019 |
| RNL Solutions Limited | Professional & scientific | 2012 |
| RNS Electrical Ltd | Construction | 2022 |
| Roadpalace Ltd | Transport & logistics | 2019 |
| Roba Metals Limited | Wholesale & retail | 1987 |
| Robert Smith Associates Limited | Professional & scientific | 1999 |
| Robert Wynn Ltd | Professional & scientific | 2014 |
| Robeson Channel Limited | Real estate | 2017 |
| Robierfiz Ltd | Transport & logistics | 2021 |
| Robin Hood Engineering Limited | | 2007 |
| Robotik Limited | Professional & scientific | 2022 |
| Rock Compliance Holdings Limited | Financial services | 2017 |
| Rock Compliance Limited | Administrative & support | 1994 |
| Rockpa Services Ltd | Administrative & support | 2023 |
| Roderick Property Ltd | Real estate | 2024 |
| Roderick Stoves Ltd | Construction | 2024 |
| Roebuck Accomodation Limited | Hospitality | 2025 |
| Rogers Funfairs Ltd | Arts & recreation | 2022 |
| Roll Britannia Ltd | Information & communication | 2023 |
| Roman Shears Barbershop Ltd | Other services | 2023 |
| Romna Ltd | Hospitality | 2019 |
| Roof Installations Limited | Construction | 2013 |
| Rooster 888 Ltd | Hospitality | 2023 |
| Roots to Shoots Ltd | Agriculture & fishing | 2020 |
| Rose Cottage Care Farm Cafe CIC | Hospitality | 2024 |
| Rose Hamson Flowers Limited | Wholesale & retail | 2011 |
| Rossano Bennett Graphics Limited | Manufacturing | 1993 |
| Rotary Foundation of the United Kingdom | Other services | 1991 |
| Rotary International in GB & Ireland | Health & social care | 2024 |
| Rothwell Hotel Associates Ltd | Professional & scientific | 2018 |
| Rpmdiscoveries Limited | Transport & logistics | 2026 |
| RS Immigration Ltd | Professional & scientific | 2026 |
| Rspk PVT Ltd | Wholesale & retail | 2017 |
| Rsvp Franchises Limited | Administrative & support | 2012 |
| Rsvp Introductions Limited | Other services | 2006 |
| Rushton Infrastructure Consultancy Limited | Professional & scientific | 2021 |
| Rusticon Ltd | Administrative & support | 2020 |
| S.J. Dents Limited | Wholesale & retail | 2007 |
| S.M.C. Windows Ltd | Construction | 2022 |
| Sabe Business Advisory Limited | Professional & scientific | 2026 |
| Sabe Property Investments Limited | Real estate | 2025 |
| Sacd (UK) Limited | Wholesale & retail | 2019 |
| Sacred Life Ltd | Health & social care | 2015 |
| Sacred Sea LLP | | 2018 |
| Safe Solutions International Limited | Professional & scientific | 2016 |
| Sainsbury-Plaice Property Group Limited | Households | 2025 |
| Sallieforth Place Management Company Limited | Real estate | 2007 |
| Salon 335 Limited | Other services | 2023 |
| Sanders & Sanders Estate Agents Ltd. | Real estate | 2006 |
| Sanwave Ltd | Information & communication | 2012 |
| Sapio Systems Limited | Information & communication | 2008 |
| Saplingspotter Ltd | Transport & logistics | 2019 |
| Sapna Jagatia Limited | Wholesale & retail | 2024 |
| Sara Southgate Kinesiology and Emdr Ltd | Other services | 2020 |
| Sarah Bassett Consulting Ltd | Professional & scientific | 2019 |
| Satchwell Exports Ltd | Professional & scientific | 2025 |
| Savaria Limited | Extraterritorial | 2001 |
| SAY86 Limited | Administrative & support | 2024 |
| Scaffold Applications Ltd | Information & communication | 2025 |
| Scan File Ltd | Administrative & support | 2007 |
| Scantastic Limited | Arts & recreation | 2011 |
| Scomrice Ltd | Administrative & support | 2024 |
| Sea Ranger Association | Health & social care | 1975 |
| Searchmate Ltd | Other services | 2013 |
| Seasonal Soul Home Ltd | Professional & scientific | 2024 |
| Seco Tools (U.K.) Limited | Manufacturing | 1973 |
| Select Maintenance Limited | Administrative & support | 2016 |
| Seletar Solutions Limited | Information & communication | 2019 |
| Sentra Care Limited | Administrative & support | 2025 |
| Sentra Care Staffing Limited | Administrative & support | 2026 |
| Serenity Agency Limited | Professional & scientific | 2017 |
| Serenity Hair & Beauty Hub Ltd | Other services | 2025 |
| Serve the Process Ltd | Administrative & support | 2025 |
| Seymour Trust Company Limited | Professional & scientific | 2018 |
| Shadowood Productions Limited | Information & communication | 2016 |
| Shakerzy Ltd | Wholesale & retail | 2024 |
| Shakespeare Holdings Limited | Financial services | 2004 |
| Shakespeare Properties Limited | Real estate | 2024 |