| Rphtraders Ltd | Wholesale & retail | 2022 |
| RR Estates & Homes Ltd | Real estate | 2024 |
| RR Financial Solutions Limited | Financial services | 2021 |
| RR Gjana Ltd | Real estate | 2024 |
| RR Tech Haven Limited | Wholesale & retail | 2024 |
| RRG Trans Ltd | Transport & logistics | 2025 |
| Rrog Company Limited | Health & social care | 2013 |
| RRP PVT Ltd | Hospitality | 2020 |
| RRR Management Limited | Real estate | 2025 |
| RRR Property Services Limited | Real estate | 2024 |
| RRS Drylining Ltd | Construction | 2025 |
| RS Build Work Ltd | Construction | 2018 |
| RS Chicken & Pizza Limited | Hospitality | 2010 |
| RS Dwellings Ltd | Real estate | 2025 |
| RS Maintenance Ltd | Construction | 2025 |
| RS Metal Fabrications Limited | Manufacturing | 2025 |
| RS Sahota Builders & Construction Ltd | Construction | 2024 |
| RS UK Traders Ltd | Wholesale & retail | 2023 |
| RSA Drylining Ltd | Construction | 2025 |
| RSB Investment Properties Ltd | Real estate | 2026 |
| Rshopfronts Ltd | Manufacturing | 2026 |
| RSJ Group Holdings Ltd | Real estate | 2021 |
| RSN Developments Ltd | Real estate | 2020 |
| RSR Cars Ltd | Wholesale & retail | 2024 |
| RSSA1 Group Limited | Real estate | 2023 |
| RT Artworks Ltd | Construction | 2021 |
| RT Building Services Ltd | Construction | 2016 |
| RTO Care Limited | Health & social care | 2026 |
| RTR Lifting Solutions Limited | Construction | 2022 |
| RTS Maintenance Ltd | Construction | 2026 |
| RU Future Ltd | Construction | 2020 |
| Ruald Logistics Ltd | Wholesale & retail | 2021 |
| Ruby Cars Ltd | Transport & logistics | 2023 |
| Ruecare Ltd | Health & social care | 2018 |
| Rugul Aprins Londra C.I.C. | Education | 2024 |
| Ruhi Beauty Limited | Other services | 2017 |
| Rukkan Limited | Wholesale & retail | 2021 |
| Rukkycare Ltd | Health & social care | 2025 |
| Rukkymore Limited | Health & social care | 2016 |
| Rukkyz Kitchen and Catering Services Ltd | Hospitality | 2026 |
| RUM Construction FP Ltd | Construction | 2022 |
| Rumbi & Eunice Ltd | Health & social care | 2016 |
| Running Well 2 Ltd | Real estate | 2026 |
| Rupert Hambro & Partners Limited | Administrative & support | 1985 |
| Ruphina OJO Adesan and Sons Ltd | Transport & logistics | 2009 |
| Rush Trading Ltd | Wholesale & retail | 2018 |
| Rushmore Business School (UK) Limited | Education | 2022 |
| Rusnac Ltd | Wholesale & retail | 2020 |
| Russ Build&Clean Ltd | Construction | 2025 |
| Russ Mechanical Ltd | Construction | 2025 |
| Rususilviu Trans Ltd | Transport & logistics | 2019 |
| Ruth's Kitchen Ltd | Hospitality | 2025 |
| Ruyal Event Decorations Limited | Other services | 2011 |
| RVB 74 Ltd | Construction | 2022 |
| RVK Contractors Limited | Construction | 2015 |
| RVK Trade Ltd | Real estate | 2018 |
| Ryamo Ltd | Wholesale & retail | 2025 |
| Ryan Services Limited | Administrative & support | 2026 |
| Ryda Ltd | Wholesale & retail | 2026 |
| Ryel Limited | Hospitality | 2023 |
| RZR Transport Services Limited | Transport & logistics | 2026 |
| S & CJ Contractors Limited | Construction | 2003 |
| S & D Heating and Plumbing Limited | Construction | 2025 |
| S & S Chauffeuring Limited | Other services | 2016 |
| S a Digital Marketing Ltd | Information & communication | 2020 |
| S and R Motors Ltd | Wholesale & retail | 2025 |
| S Cutz 66 Ltd | Other services | 2026 |
| S J Premier Consultancy Ltd | Professional & scientific | 2023 |
| S K a Convenience Stores Limited | Wholesale & retail | 2026 |
| S L & S S Pabari Limited | Wholesale & retail | 2004 |
| S Lleshi Ltd | Other services | 2024 |
| S Martini Ltd | Construction | 2026 |
| S R Facilities Services Ltd | Administrative & support | 2019 |
| S R Maintenance Ltd | Construction | 2018 |
| S S Estates Ltd | Real estate | 2021 |
| S V Food & Wine Ltd | Wholesale & retail | 2018 |
| S Wang London Limited | Information & communication | 2025 |
| S Wood Floor Ltd | Manufacturing | 2019 |
| S&A Prime Property Ltd | Real estate | 2026 |
| S&C Student Care Ltd | Education | 2022 |
| S&J Arthur Properties Ltd | Real estate | 2024 |
| S&K Finance Services Limited | Professional & scientific | 2022 |
| S&M Rental Properties Limited | Real estate | 2024 |
| S&N Consulting Ltd | Professional & scientific | 2023 |
| S&N Foods Ltd | Transport & logistics | 2016 |
| S&O Groundworks Ltd | Construction | 2022 |
| S&S Connect Ltd | Education | 2015 |
| S&S Property Enterprises Ltd | Real estate | 2021 |
| S&T Housing Solutions Limited | Real estate | 2025 |
| S'Genesis Limited | Information & communication | 2012 |
| S-0U Fleetguard Airborne Group Ltd | Administrative & support | 2026 |
| S.A Blenderiuc Ltd | Construction | 2022 |
| S.A.L.T.T. Ltd | Real estate | 2021 |
| S.E.L.G Building Ltd | Construction | 2014 |
| S.S.I Medicare Limited | Health & social care | 2015 |
| S.T. Autism Training Service Limited | Education | 2019 |
| S1 Marketing Group Ltd | Professional & scientific | 2025 |
| S1 Tyres Limited | Wholesale & retail | 2015 |
| S1V Chauffeur Ltd | Transport & logistics | 2024 |
| S4S Construction Limited | Construction | 2023 |