| Rossiter Pubs Limited | Hospitality | 2022 |
| Roundbale Limited | Information & communication | 2009 |
| Roundwell Park (Bearsted) Residents Management Company Limited | Households | 2021 |
| Rowe Mechanical Limited | Construction | 2025 |
| Rowgarden Limited | Financial services | 2025 |
| ROY Killen & Co Ltd | Professional & scientific | 2021 |
| Royal Oak Consulting Limited | Wholesale & retail | 2022 |
| Royale House Antiques Ltd | Other services | 2026 |
| RP Home Decorating Ltd | Construction | 2026 |
| RPN Lifts Ltd | Manufacturing | 2025 |
| RRN Roofing Ltd | Construction | 2023 |
| RS & KJR Developments Limited | Real estate | 2017 |
| RSH Images Ltd | Other services | 2020 |
| RSL Consultancy Ltd. | Construction | 2013 |
| Rsmi Planning Ltd | Professional & scientific | 2024 |
| RSP Associates Ltd | Real estate | 2021 |
| RTW Investments Ltd | Administrative & support | 2016 |
| Ruby Holdco Limited | Financial services | 2021 |
| Rumbling Bridge Press Ltd | Information & communication | 2023 |
| Rummey Design Associates Limited | Professional & scientific | 2000 |
| Rummey Environmental Limited | Administrative & support | 2000 |
| Runa Network Limited | Information & communication | 2014 |
| Rural Work Space Limited | Real estate | 2018 |
| Rush Europe Limited | Transport & logistics | 2022 |
| Rushdene Ltd | Construction | 2012 |
| Russell Executive Developments Ltd | Construction | 2023 |
| Russell Harper Photography Ltd | Professional & scientific | 2015 |
| Russell House School Ltd | Education | 2001 |
| Ruth Dent Ltd | Arts & recreation | 2020 |
| RV Karma Limited | Wholesale & retail | 2021 |
| RV Lifescience Limited | Health & social care | 2026 |
| RWD Consulting Services Limited | Professional & scientific | 2015 |
| RXA Construction Ltd | Construction | 2026 |
| RXA Properties Ltd | Real estate | 2026 |
| Ryarsh Brick Limited | Manufacturing | 1940 |
| Ryewood Limited | Professional & scientific | 2013 |
| Ryme Ltd | Construction | 2011 |
| Ryme Property Services Ltd | Real estate | 2016 |
| S & J Cleaning Systems Limited | Administrative & support | 2010 |
| S & M Buntastic Kent Ltd | Hospitality | 2024 |
| S & P Spanarc Limited | Wholesale & retail | 1954 |
| S B S Taxi's Limited | Transport & logistics | 2022 |
| S Brown Building Contractor Limited | Construction | 2005 |
| S C Accounting Services Ltd | Professional & scientific | 2010 |
| S G B Management Limited | Real estate | 1996 |
| S H Solar Solutions Ltd | Administrative & support | 2025 |
| S Harris Roofing and Property Maintenance Ltd | Construction | 2025 |
| S Harvey Property Services Limited | Construction | 2003 |
| S J Geoghegan Ltd | Real estate | 2021 |
| S Little Sound Ltd | Information & communication | 2009 |
| S Nuga Associate Ltd | Professional & scientific | 2014 |
| S Nuga Properties Ltd | Real estate | 2021 |
| S O Parker Studio Limited | Professional & scientific | 2009 |
| S T a Solutions Limited | Information & communication | 2003 |
| S Thomas Plumbing & Heating Limited | Construction | 2016 |
| S Williams Architects Limited | Professional & scientific | 2007 |
| S&W Investments Ltd | Real estate | 2026 |
| S.B.S Sevenoaks Ltd | Construction | 2025 |
| S.L.& D.G.Pratt(Properties)Limited | Real estate | 1972 |
| S.N.G. Limited | Real estate | 1997 |
| S.R. Doyle (UK) Limited | Manufacturing | 2006 |
| S.R. Doyle Limited | Construction | 2002 |
| S4K International Ltd | Arts & recreation | 2010 |
| SA Riera Limited | Real estate | 2014 |
| SA UK Enterprise Ltd | Wholesale & retail | 2024 |
| Saasify Ltd | Information & communication | 2025 |
| Saavi Construction Limited | Construction | 2025 |
| Sabella Holdings Ltd | Information & communication | 2019 |
| Sabi River Trading Company Limited | Wholesale & retail | 1989 |
| Sackville Place Sevenoaks Management Company Limited | Real estate | 2010 |
| Sacred Leaf Supply Limited | Wholesale & retail | 2025 |
| Safe Hands Healthcare Limited | Public administration | 2020 |
| Safe Storage (South) Ltd | Other services | 2021 |
| Safegas Engineering Ltd | Professional & scientific | 2026 |
| Safeguard Fire Solutions Ltd | Public administration | 2025 |
| Safeguardian UK Limited | Professional & scientific | 2025 |
| Safemessage Ltd | Extraterritorial | 2025 |
| Safety Management Support UK Ltd | Professional & scientific | 2019 |
| Saffron Advisory Ltd | Professional & scientific | 2026 |
| Sahben Holdings Limited | Administrative & support | 2024 |
| Sahha Ltd. | Hospitality | 2018 |
| SAI Convenience & Newsagent Limited | Wholesale & retail | 2021 |
| Sailing GB Ltd | Transport & logistics | 2016 |
| Sakura Incorporations Ltd | Real estate | 2019 |
| Salisbury & Co Ltd. | Administrative & support | 2004 |
| Salix HR Ltd | Professional & scientific | 2013 |
| Salomons UK Limited | Administrative & support | 2013 |
| Salt & Pepper Associates Ltd | Construction | 2014 |
| Salt & Pepper Group (Kent) Ltd | Professional & scientific | 2020 |
| Salters Heath Business Centre Limited | Real estate | 2021 |
| Saltlight IT Limited | Information & communication | 2024 |
| Saltwater Holdings Limited | Administrative & support | 2016 |
| SAM & Nick Ltd | Wholesale & retail | 2021 |
| Sameday UK Couriers Limited | Transport & logistics | 2018 |
| Samedi Limited | Professional & scientific | 2025 |
| Sammezzano Castle Acquisition and Development Company Limited | Construction | 2019 |
| Samuels & Co LLP | | 2004 |
| Samuels LLP | | 2004 |
| Samuelsie Farm Ltd | Health & social care | 2024 |
| Sana Waste Limited | Water & waste | 2024 |