| Rowans Software Limited | Information & communication | 2025 |
| Rowley Bristow Management Company Limited | Households | 1995 |
| Roxburghe Recycling Limited | Water & waste | 2016 |
| Roytap Construction Ltd | Construction | 2021 |
| Roytap Holdings Limited | Construction | 2020 |
| RP Parsons Building Services Limited | Construction | 2011 |
| RR Micro Beauty Ltd | Wholesale & retail | 2024 |
| RS Cars (RG) Limited | Wholesale & retail | 1991 |
| RS Medsolutions Ltd | Health & social care | 2021 |
| RSA Stone Ltd | Hospitality | 2025 |
| Rsbm Properties Ltd | Real estate | 2021 |
| RSM Domestic Appliances Limited | Wholesale & retail | 1998 |
| Rsrp Consultancy Limited | Hospitality | 2016 |
| RSS Building Services (Southern) Ltd | Construction | 2011 |
| Rssb Solutions Ltd | Health & social care | 2014 |
| RST Traders Ltd | Transport & logistics | 2025 |
| RT Corp Ltd | Construction | 2025 |
| RTW Communications Limited | Administrative & support | 2025 |
| Rubencrl Ltd | Construction | 2018 |
| Ruby Consultancy Ltd | Information & communication | 2025 |
| Ruckle Consultancy Limited | Information & communication | 1993 |
| Ruco Solutions Ltd | Administrative & support | 2015 |
| Ruelp Limited | Professional & scientific | 2024 |
| Ruffett Accountancy Limited | Professional & scientific | 2024 |
| Ruffian Limited | Information & communication | 2026 |
| Rumillack Solutions Ltd | Information & communication | 2023 |
| Rupertspurgeon Ltd | Professional & scientific | 2023 |
| Rusper Farm Limited | Agriculture & fishing | 2019 |
| Russell COX and Librada Cespedosa Santiago Property Holding Limited | Real estate | 2018 |
| Russell Jeffery Limited | Administrative & support | 2007 |
| Rustic Court Collective Limited | Households | 2026 |
| Ruth's Intercontinental Food Ltd | Wholesale & retail | 2017 |
| RW Birchall Associates Limited | Professional & scientific | 2002 |
| RW74 Limited | Information & communication | 2024 |
| RWA Productions Ltd | Information & communication | 2018 |
| Ryan Business Services Ltd | Professional & scientific | 2024 |
| Ryan Gage Limited | Arts & recreation | 2025 |
| Ryan Roofing Holdings Limited | Financial services | 2024 |
| Ryan Roofing Limited | Construction | 2017 |
| Ryan Scaffold Solutions Ltd | Construction | 2025 |
| Rydenow Limited | Education | 2023 |
| Rydens Parade Freehold Company Limited | Households | 2022 |
| RYE Property Investments Ltd | Real estate | 2020 |
| Ryval GAS Limited | Extraterritorial | 1998 |
| S & a Pension Trustees Limited | Administrative & support | 2007 |
| S & D Carpentry & Construction Limited | Construction | 2010 |
| S & S Properties (Woking) Ltd | Construction | 2011 |
| S a Vehicles Ltd | Wholesale & retail | 2022 |
| S a Wright Ltd | Administrative & support | 2025 |
| S and R Surrey Ltd | Real estate | 2022 |
| S B Software Testing Limited | Administrative & support | 2010 |
| S E Lang Consulting Ltd | Professional & scientific | 2017 |
| S G Elliott Roofing Contractors Ltd | Construction | 2022 |
| S M J Carpentry & Construction Ltd | Construction | 2015 |
| S Macdonald Electrical Services Limited | Construction | 2023 |
| S R Surrey Developments Ltd | Construction | 2025 |
| S&S Sons Ltd | Real estate | 2021 |
| S. Bradbury Consultancy Limited | Professional & scientific | 2020 |
| S. I. Plumbing Services Limited | Construction | 2005 |
| S. J. Silver & Co Limited | Wholesale & retail | 2008 |
| S.A.V. United Kingdom Limited | Manufacturing | 1952 |
| S.W.T. Enterprises Limited | Other services | 1993 |
| S24X7 Facilities Management Ltd | Construction | 2023 |
| S2M Global Consulting Ltd | Information & communication | 2025 |
| S4 Consulting Limited | Information & communication | 2021 |
| SA9 Constructions Limited | Real estate | 2024 |
| Saach Aesthetic Ltd | Other services | 2021 |
| Saach Interiors Ltd | Manufacturing | 2011 |
| Saach Investments Ltd | Real estate | 2021 |
| Sabeho Limited | Real estate | 2018 |
| Sabores DA Casa Limited | Hospitality | 2025 |
| Sacouk Ltd | Construction | 2024 |
| Sacred Space CIC | Health & social care | 2024 |
| Saddlers Halt Ltd | Real estate | 2015 |
| Safari Court Residents Limited | Households | 2011 |
| Safe Removal and Cleaning Services Ltd | Transport & logistics | 2025 |
| Safe Xpress Ltd | Financial services | 2017 |
| Safe-Voucher Group Ltd | Financial services | 2024 |
| Safe-Voucher Ltd | Administrative & support | 2021 |
| Safehome Care Ltd | Health & social care | 2026 |
| Safepay Ltd | Information & communication | 2020 |
| Safer Home Electrical Ltd | Construction | 2020 |
| Safety Cars Ltd | Transport & logistics | 2023 |
| Safety Nett Limited | Professional & scientific | 2006 |
| Safety Priorities Ltd | Health & social care | 2002 |
| Saffenco Ltd | Professional & scientific | 2011 |
| Saffron Delight Limited | Hospitality | 2022 |
| SAH Property Ltd | Real estate | 2021 |
| Sahfa Ltd | Manufacturing | 2020 |
| Sahi Traders Ltd | Financial services | 2010 |
| SAI Financial Consulting Ltd | Professional & scientific | 2024 |
| SAIFY53 Ltd | Wholesale & retail | 2024 |
| Saint Anger Ltd | Professional & scientific | 2022 |
| Sairad Tele Limited | Health & social care | 2024 |
| Saise Ltd | Information & communication | 2009 |
| SAJ Beds Ltd | Wholesale & retail | 2026 |
| SAJ Carpets Ltd | Wholesale & retail | 2026 |
| SAJ Property Development Ltd | Real estate | 2024 |
| Sakza Properties Ltd | Real estate | 2020 |
| Salaro Labs Ltd | Information & communication | 2025 |