| Rhopoint Investment Holding Company Limited | Financial services | 2024 |
| Rhopoint Sourcing Limited | Wholesale & retail | 2010 |
| Richard Barnett Limited | Construction | 2002 |
| Richgally Ltd | Construction | 2019 |
| Rickman Property Ltd | Real estate | 2023 |
| Ridley Academy Ltd | Education | 2019 |
| Ridvan 01 Ltd | Hospitality | 2026 |
| Ripcord Consulting Ltd | Information & communication | 2022 |
| Rites for Girls Community Interest Company | Education | 2017 |
| Rivenoak Homes Ltd | Real estate | 2026 |
| Riverside Custom Cycles Limited | Wholesale & retail | 2024 |
| RJK Arbitration Ltd | Real estate | 2015 |
| RK Build Solutions Ltd | Construction | 2014 |
| RL Lewis Limited | Health & social care | 2021 |
| Rmes Electrical Limited | Construction | 2006 |
| ROB Bridger Ltd | Professional & scientific | 2013 |
| Robert Childs and Company Limited | Financial services | 1994 |
| Robert Wescott Flooring Limited | Construction | 2010 |
| Robinson Elliott Surveyors Limited | Professional & scientific | 2007 |
| Robot Motel Limited | Manufacturing | 2015 |
| Rock & Ridley Ltd | Administrative & support | 2014 |
| Rockwood Park Management Company Limited | Households | 1986 |
| Rocky Mountain Limited | Professional & scientific | 2002 |
| ROK Architects Limited | Professional & scientific | 2016 |
| Romac Contracting Ltd | Construction | 2024 |
| Roof Restoration Services (RRS) Limited | Construction | 2020 |
| Room on the ROW LLP | | 2017 |
| Roots Collective CIC | Education | 2022 |
| Rosas Logistics Ltd | Transport & logistics | 2016 |
| Rotan Construction Limited | Construction | 2000 |
| Route Star Ltd | Information & communication | 2026 |
| Rowlings Property Ltd | Real estate | 2022 |
| Royston Build Ltd | Construction | 2025 |
| Rrpt MRH Limited | Health & social care | 2023 |
| RS Heating and Cooling Ltd | Construction | 2014 |
| RS Invest Limited | Real estate | 2013 |
| Rt’S Masonry Ltd | Construction | 2025 |
| Rugby Prem Limited | Administrative & support | 2025 |
| Rumber Investments Ltd. | Real estate | 2021 |
| Rusalka Pictures Ltd | Information & communication | 2018 |
| Rushpool Properties Limited | Hospitality | 2019 |
| Rushpool Venues Limited | Hospitality | 2019 |
| Russell & Brenchley Properties Ltd | Real estate | 2023 |
| RW Management Limited | Administrative & support | 2024 |
| RWS Home Ltd | Wholesale & retail | 2026 |
| Rystwood Estate Limited | Households | 1974 |
| S Humphrey Home Improvements Ltd | Construction | 2023 |
| S Moore Electrical Services Limited | Construction | 2013 |
| S P Nurseries Ltd | Health & social care | 2016 |
| S Ready ANP Ltd | Health & social care | 2013 |
| S&S Facades Ltd | Construction | 2025 |
| S&S Financial Solutions Limited | Financial services | 2017 |
| S. Gerber Limited | Construction | 2009 |
| S. Weller & Sons Ltd | Construction | 2023 |
| S.A. Cook Consulting Engineers Limited | Construction | 1998 |
| S.A.D.H. Assistance Ltd | Professional & scientific | 2024 |
| S.A.D.H.U. Holding Ltd | Manufacturing | 2024 |
| S.A.S. Carpentry & Building Ltd | Construction | 2011 |
| S.J. Morrow Ltd | Construction | 2000 |
| SA Lettings (South East) Ltd | Real estate | 2022 |
| Sabre Sales Ltd | Real estate | 2025 |
| Sabreglen Limited | Manufacturing | 1996 |
| Sadlers Yard Management Company Limited | Households | 2015 |
| Sail and Race Limited | Arts & recreation | 2016 |
| Saint Hill OT Committee | Health & social care | 2013 |
| Saint K Ltd | Professional & scientific | 2019 |
| Saint Mary's Stars Childcare Ltd | Health & social care | 2022 |
| Sales and Marketing Engineers Ltd | Professional & scientific | 2025 |
| Sally Balcombe Consulting Limited | Other services | 2012 |
| Salthouse Advisory Ltd | Professional & scientific | 2022 |
| SAM General Trading Ltd | Construction | 2023 |
| SAM Orkar Ltd | Health & social care | 2017 |
| Sam's Gutters Limited | Construction | 2011 |
| Samantha Lizars Limited | Professional & scientific | 2008 |
| Samantha Lloyd-Smith Athletics Limited | Arts & recreation | 2020 |
| Samantha Martin Limited | Other services | 2002 |
| Samaynta Security Consulting Support Ltd | Information & communication | 2024 |
| Samco Group Ltd | Water & waste | 2017 |
| Samos E-Commerce Ltd. | Administrative & support | 2018 |
| Samtext UK Ltd | Professional & scientific | 2000 |
| Sands Financial Holdings Ltd | Financial services | 2026 |
| Sara Lewis Limited | Hospitality | 2001 |
| Sarah Winn Consulting Limited | Professional & scientific | 2011 |
| Saremi Property Ltd | Real estate | 2022 |
| Saturn V (SN) Limited | Arts & recreation | 1998 |
| SAUNA360 Ltd | Wholesale & retail | 1989 |
| Saxa Glass Limited | Manufacturing | 2015 |
| Saxonchief Limited | Real estate | 1982 |
| SC I-Care Limited | Wholesale & retail | 2019 |
| SC Scaffolding Services Ltd | Construction | 2022 |
| Scandia HUS Holdings Limited | Professional & scientific | 2012 |
| Scandia HUS Limited | Construction | 1974 |
| Scanx Limited | Wholesale & retail | 2020 |
| Schlossmacher Consult Ltd | Financial services | 2018 |
| Science Becomes Ltd | Professional & scientific | 2023 |
| Scorpio Express Limited | Transport & logistics | 2004 |
| Scott Boyens Studio Limited | Professional & scientific | 2025 |
| Scott Electrical Services (South East) Ltd | Construction | 2026 |
| SCP Property Management Ltd | Real estate | 2019 |
| Scrc Holdings Ltd. | Financial services | 2023 |