| Roseland Landscapes Limited | Administrative & support | 2017 |
| Roseland Property Limited | Professional & scientific | 1994 |
| Rosewarne Gardens Management Company Ltd | Households | 2020 |
| Ross Ciappessoni Media Ltd | Administrative & support | 2004 |
| Rostron Accounting Ltd | Professional & scientific | 2025 |
| Rotisserie Corner Ltd | Hospitality | 2019 |
| Round Box Estates Ltd | Real estate | 2021 |
| Round Table Hospitality Limited | Hospitality | 2025 |
| Routflo Ltd | Information & communication | 2026 |
| Rowcroft RI Limited | Professional & scientific | 2011 |
| ROY Mansions (Henley-On-Thames) Limited | Households | 1989 |
| Royal Ordnance (Crown Service) Pension Scheme Trustees Limited | Professional & scientific | 1984 |
| RPM Sports Ltd | Education | 2025 |
| RRB Consult Limited | Health & social care | 2020 |
| RSE FM Consulting Ltd | Professional & scientific | 2013 |
| RSF Contractors Ltd | Construction | 2019 |
| RSK Hospitality Ltd | Hospitality | 2020 |
| RSK Hotels Ltd | Hospitality | 2025 |
| RSN Property Holdings Limited | Professional & scientific | 2021 |
| RSN Property Limited | Real estate | 2001 |
| RSW Chauffeurs Limited | Transport & logistics | 2013 |
| Rugbytots Farnham Limited | Arts & recreation | 2013 |
| Ruhamaa Muslim Funeral UK Limited | Other services | 2021 |
| Ruku Systems Limited | Information & communication | 2026 |
| Runway Logistics Ltd | Transport & logistics | 2019 |
| Rusalba Limited | Professional & scientific | 2016 |
| Rushmoor Meat Limited | Manufacturing | 2023 |
| Russell Baldwin & Bright (Property) | Real estate | 1986 |
| Russell Court Residents' Association (Yateley) Limited | Real estate | 1974 |
| Russell Family Properties Limited | Professional & scientific | 2012 |
| Rust Events Ltd | Administrative & support | 2026 |
| RWP Solutions Ltd | Construction | 2025 |
| RX Recruitment Solutions Ltd | Administrative & support | 2026 |
| Ryaaz Packaging Ltd | Administrative & support | 2007 |
| Ryan Aviation & Logistics Ltd | Professional & scientific | 2010 |
| Ryan Collins Contracting Limited | Professional & scientific | 2016 |
| Ryan Infotech Limited | Information & communication | 2020 |
| Rydens Enterprise (Walton) Management Company Limited | Households | 2016 |
| Ryder & Dutton (Financial Services) Limited | Financial services | 1999 |
| Ryder & Dutton Lettings Limited | Real estate | 2021 |
| Ryder & Dutton Limited | Real estate | 2006 |
| Ryemarc Group Limited | Extraterritorial | 2015 |
| Ryemarc Holdings Limited | Real estate | 2023 |
| Ryemarc Limited | Professional & scientific | 1998 |
| Ryemarc Property Services Limited | Extraterritorial | 2002 |
| Ryemarc Services Limited | Wholesale & retail | 2026 |
| Ryemark Limited | Extraterritorial | 2015 |
| RZS Engineering Ltd | Professional & scientific | 2022 |
| S & C Properties LLP | | 2008 |
| S & P Wilson Limited | Professional & scientific | 2024 |
| S & S Bathrooms and Kitchens Ltd | Manufacturing | 2026 |
| S and T Phillips Holdings Ltd | Real estate | 2025 |
| S J L Boiler and Heating Solutions Limited | Construction | 2020 |
| S J Lawson Plumbing and Heating Limited | Construction | 2018 |
| S J Vickery Limited | Professional & scientific | 2012 |
| S James Ltd | Health & social care | 2023 |
| S M Packaging Ltd | Manufacturing | 2005 |
| S&S Dental Services Limited | Health & social care | 2023 |
| S.Cole Roofing Ltd | Construction | 2024 |
| SA Gardens Ltd | Households | 2019 |
| SA Urban Property Ltd | Real estate | 2026 |
| Sabal St€Ps Ltd | Real estate | 2026 |
| Sabbath Consulting Limited | Professional & scientific | 2024 |
| Sabpha Ltd | Other services | 2026 |
| Sacred Baboon Ltd | Wholesale & retail | 2025 |
| Sadia Shams Properties Ltd | Real estate | 2025 |
| Sadiya & Nomi Ltd | Wholesale & retail | 2024 |
| Safe Children's Surgery Ltd | Health & social care | 2014 |
| Safeguard Legal Support Service Ltd | Administrative & support | 2008 |
| Safety Spex Limited | Wholesale & retail | 2005 |
| Saffron London Ltd | Hospitality | 2022 |
| Sages International Ltd | Hospitality | 2024 |
| Sahoo Properties Ltd | Financial services | 2025 |
| SAI Consult Ltd | Wholesale & retail | 2008 |
| SAI Property Developments Ltd | Real estate | 1998 |
| SAI Property Holdings Ltd | Real estate | 2015 |
| Sainbiotics UK Limited | Manufacturing | 2022 |
| Salariya Limited | Professional & scientific | 2002 |
| Salaza Art Ltd | Arts & recreation | 2026 |
| Salbendle's Complex Care Limited | Health & social care | 2013 |
| Salcombe Bars Ltd | Hospitality | 2023 |
| Salem RR Biryani Ltd | Hospitality | 2025 |
| Sales Wired Ltd | Administrative & support | 2025 |
| Sally Webster Limited | Health & social care | 2021 |
| Salon 55 Hair Limited | Other services | 2016 |
| Saltworks Communication Ltd | Professional & scientific | 2016 |
| Salvigo Limited | Professional & scientific | 2011 |
| SAM Aleko Transport Limited | Transport & logistics | 2016 |
| SAM SAM Foods Ltd | Manufacturing | 2024 |
| Samcom Limited | Professional & scientific | 2000 |
| Samiam Software Limited | Information & communication | 2022 |
| Samosa Mosa Ltd | Wholesale & retail | 2025 |
| Samuel Brothers(St.Paul's) Limited | Manufacturing | 1926 |
| Samyra Ltd | Wholesale & retail | 2024 |
| Sancon Ltd | Professional & scientific | 2020 |
| Sanctuary Home Interiors Ltd | Construction | 2021 |
| Sanctuary Medical Staffing Ltd | Health & social care | 2016 |
| Sancus Management Group Ltd | Arts & recreation | 2020 |
| Sand Hill Court Management Limited | Households | 1963 |
| Sandeep Homes Ltd | Real estate | 2024 |