| Ripple Private Hire Company Ltd | Transport & logistics | 2022 |
| Rishan Invest Limited | Real estate | 2020 |
| Rita’S Tasty Limited | Hospitality | 2023 |
| Rizvi Enterprises Ltd | Information & communication | 2026 |
| RK Stores UK Ltd | Wholesale & retail | 2024 |
| RMA Media Limited | Professional & scientific | 2023 |
| RMK Boutique Ltd | Wholesale & retail | 2025 |
| RN Analytics Ltd | Professional & scientific | 2024 |
| RNS Ventures Ltd | Real estate | 2017 |
| Roadway Optimisation Ltd | Construction | 2024 |
| Robynex Limited | Professional & scientific | 2024 |
| Rock Finance & Investment Ltd | Financial services | 2018 |
| Rock Restaurant and Bar Limited | Hospitality | 2025 |
| Rockwey Logistics Limited | Transport & logistics | 2023 |
| Rodeos Burgers Ltd | Hospitality | 2025 |
| Rohi Builders Ltd | Construction | 2023 |
| Rohva Trading Limited | Wholesale & retail | 2025 |
| Roll Stop Ltd | Hospitality | 2025 |
| Rollup Ltd | Wholesale & retail | 2025 |
| Romans Solution Ltd | Construction | 2024 |
| Ronny Road Freight Ltd | Transport & logistics | 2025 |
| Rontech Ltd | Wholesale & retail | 2018 |
| Roobs UK Limited | Wholesale & retail | 2004 |
| Roofing Wizards Ltd | Construction | 2025 |
| Roohze Limited | Wholesale & retail | 2025 |
| Room Constructions Limited | Construction | 2025 |
| Rooster Zone Gillingham Limited | Wholesale & retail | 2019 |
| Rosda Ltd. | Administrative & support | 2026 |
| Rosve Ltd | Construction | 2014 |
| Roukes Service Ltd | Construction | 2016 |
| Roupell Court Limited | Real estate | 2026 |
| RP Imaging Solutions Ltd | Health & social care | 2026 |
| RR Homefix Services Ltd | Other services | 2024 |
| Rrica UK Ltd | Hospitality | 2019 |
| RS Emissary Limited | Transport & logistics | 2017 |
| RSM Records Ltd | Information & communication | 2015 |
| RTC RTM Company Limited | Households | 2023 |
| Ru-Ro Design Ltd | Manufacturing | 2023 |
| Ruffa Lane Records Ltd | Arts & recreation | 2002 |
| Ruhul Asset Ltd | Real estate | 2025 |
| Rujis Kerala Kitchen Limited | Hospitality | 2026 |
| Rujis Limited | Hospitality | 2025 |
| Rujis Restaurant Ltd | Hospitality | 2025 |
| Rupala Ltd | Real estate | 2023 |
| Rxhealth Limited | Health & social care | 2021 |
| Rxpropertymanagement Ltd | Real estate | 2023 |
| Rymm Ritual Limited | Other services | 2026 |
| RZ Prestige Hire Ltd | Administrative & support | 2025 |
| S - Dream Dance Studio Ltd | Arts & recreation | 2023 |
| S a Properties Investment Limited | Information & communication | 2016 |
| S Ashraf Medical Limited | Health & social care | 2019 |
| S DE Oliveira Ltd | Manufacturing | 2017 |
| S E Air Conditioning Ltd | Energy | 2014 |
| S&A Bochev Ltd | Hospitality | 2018 |
| S&S Construction Services Limited | Construction | 2020 |
| S.F 20-22 Good Deals Limited | Wholesale & retail | 2023 |
| S.P.C Electrical Services Ltd | Construction | 2023 |
| SA Digital Solutions Ltd | Information & communication | 2024 |
| SA Foxley Ltd | Real estate | 2023 |
| Saam-Dent Limited | Health & social care | 2014 |
| Sabaifix Tech Solutions Ltd | Other services | 2024 |
| Sabs Delights Limited | Hospitality | 2022 |
| SAF Developments Limited | Real estate | 2017 |
| Sagaya Limited | Wholesale & retail | 2023 |
| SAI and J Ltd | Wholesale & retail | 2023 |
| SAI Empowerment Community Project CIC | Health & social care | 2025 |
| Saint ODO Limited | Wholesale & retail | 2024 |
| Saitech Technology Ltd | Manufacturing | 2025 |
| Saiz Investments Limited | Real estate | 2024 |
| Sajjyn Medi Ltd | Health & social care | 2014 |
| Sale Kart Ltd | Hospitality | 2022 |
| Salisbury House Management Company Limited | Real estate | 2007 |
| Sallylex Ltd | Health & social care | 2022 |
| Salome Collective Ltd | Other services | 2024 |
| Salvucci Ltd | Manufacturing | 2024 |
| SAM Solutions FIX Ltd | Construction | 2026 |
| Sam's Building Ltd | Construction | 2014 |
| Same Day Furniture Ltd | Construction | 2019 |
| Same-It Limited | Information & communication | 2015 |
| Samitpatelvs Ltd | Professional & scientific | 2021 |
| Samphil Ltd | Construction | 2024 |
| Samuels TM Ltd | Construction | 2023 |
| Samz Wholesale Ltd | Wholesale & retail | 2024 |
| Sana Takeaway Limited | Hospitality | 2024 |
| Sanda Stores Ltd | Wholesale & retail | 2023 |
| Sanderson DE Oliveira Ltd | Construction | 2017 |
| Sanguine Properties Ltd | Real estate | 2023 |
| Santex Collection Ltd | Wholesale & retail | 2021 |
| Sapienspace Technologies Limited | Information & communication | 2026 |
| Saracen Media Ltd | Professional & scientific | 2024 |
| Sarsoza Property Ltd | Real estate | 2026 |
| SAT26 Collection Ltd | Wholesale & retail | 2026 |
| Satin Skin Studios Ltd | Other services | 2026 |
| Satish Limited | Professional & scientific | 2013 |
| Saveur Tropicale Fast Foods Limited | Hospitality | 2022 |
| Saveur Tropicale Foods Production Limited | Hospitality | 2022 |
| Savitree LLP | | 2021 |
| SAW Construction Surrey Ltd | Administrative & support | 2017 |
| Sawida Limited | Health & social care | 2014 |
| SB Glazing Ltd | Construction | 2015 |