| Ruby Event Management Ltd | Administrative & support | 2017 |
| Ruby Star Properties South East Limited | Real estate | 2026 |
| Ruby’S Bexhill Ltd | Hospitality | 2026 |
| Rumbustian Limited | Manufacturing | 2017 |
| Rural Inclusion CIC | Administrative & support | 2021 |
| Rural Inclusion Labs Ltd | Administrative & support | 2025 |
| Ruse & Co Limited | Manufacturing | 2014 |
| Russell Educational Services Limited | Education | 2020 |
| Rustico Enterprises Ltd | Hospitality | 2022 |
| Rustico Italiano (Holdings) Ltd | Real estate | 2018 |
| Rustico Italiano Limited | Hospitality | 2015 |
| Rustico Residential Ltd | Real estate | 2023 |
| Rustico VIA Limited | Hospitality | 2023 |
| Ryan Rynston Ltd | Real estate | 2025 |
| RYE Butchers Limited | Wholesale & retail | 2006 |
| S & C Interior Systems Ltd | Construction | 2021 |
| S & D Property Services Limited | Real estate | 2013 |
| S a Morris Plastering Limited | Construction | 2017 |
| S Howard Property Care LLP | | 2023 |
| S J Homewood Limited | Construction | 2009 |
| S&A Renovations Limited | Construction | 2022 |
| S.A.G.D Holdings Limited | Real estate | 2016 |
| S2A Media Limited | Information & communication | 2016 |
| Sabs Workshop Limited | Manufacturing | 2025 |
| Sackville Apartments Limited | Real estate | 2014 |
| Sackville Bistro Limited | Hospitality | 2018 |
| Sackville Estates Limited | Real estate | 2018 |
| Sackville House Hotel Ltd | Hospitality | 2016 |
| Sackville Partners Ltd | Real estate | 2025 |
| Sackville Road Properties Limited | Real estate | 2025 |
| Safe and Secure Contracting Limited | Administrative & support | 2026 |
| Safenet Connect CIC | Professional & scientific | 2024 |
| Safest Consulting Limited | Professional & scientific | 2008 |
| Saffron Consultancy Limited | Information & communication | 2012 |
| Saife Systems Limited | Administrative & support | 2023 |
| Saje Property Ltd | Real estate | 2023 |
| Salon Blocs Ltd | Information & communication | 2018 |
| Salon Privé Ltd | Extraterritorial | 2016 |
| Salon Versailles Ltd | Hospitality | 2026 |
| Salt and Stone Ltd | Construction | 2026 |
| Sand LE Mere Caravan Park Limited | Hospitality | 1985 |
| Sandhurst Sustainability Solutions Ltd | Professional & scientific | 2025 |
| Sandor Group Holdings Ltd | Real estate | 2019 |
| Sandringham Court (Bexhill) Limited | Households | 2003 |
| Sappy Tree Care Ltd | Administrative & support | 2025 |
| Saran Mortgages Ltd | Financial services | 2025 |
| Sarooc Properties Limited | Real estate | 2025 |
| Satbiz Property Limited | Real estate | 2025 |
| Satbiz Property SPV Limited | Real estate | 2024 |
| Sauna Bay Limited | Manufacturing | 2017 |
| Saunders & Walker Developments Ltd | Construction | 2025 |
| Saxonwood Management Limited | Households | 1989 |
| Sayers & Bell Brickwork Contractors Limited | Construction | 2024 |
| SB Electrics Southern Ltd | Construction | 2020 |
| SB on the Beach Limited | Hospitality | 2024 |
| SCI Opco Limited | Financial services | 2021 |
| Scott Lewis Developments Limited | Construction | 2024 |
| Scott Lewis Property Limited | Real estate | 2025 |
| Scotvale Building Services Limited | Construction | 2012 |
| Scout Comms Ltd | Professional & scientific | 2019 |
| SDD Joinery Limited | Construction | 2022 |
| Sea Rooms Limited | Real estate | 2016 |
| Seabourne Lettings Ltd | Real estate | 2026 |
| Seafood P & G Ltd | Wholesale & retail | 2013 |
| Seagram Properties Ltd | Real estate | 2007 |
| Seagreen-Bell Family Company Ltd | Real estate | 2024 |
| Seagreen-Bell Limited | Professional & scientific | 2014 |
| Seagreen-Bell Partnership LLP | | 2023 |
| Seagreen-Bell Property Limited | Hospitality | 2022 |
| Seaspray Caravan Park Limited | Hospitality | 2008 |
| Seaspray Rooms Ltd | Hospitality | 2015 |
| Seaview Holiday Park Limited | Hospitality | 1992 |
| Seaview Holiday Village Limited | Hospitality | 2015 |
| Security B-Sides UK Ltd | Professional & scientific | 2011 |
| Security Continuum Limited | Information & communication | 2017 |
| Seebach Associates Ltd | Information & communication | 2023 |
| Seed-Tube.Com Ltd | Wholesale & retail | 2019 |
| Seer Arts Ltd | Information & communication | 2023 |
| Selara Consulting Ltd | Information & communication | 2025 |
| Senlac Communications Ltd | Information & communication | 2002 |
| Senlac Holdings Ltd | Real estate | 2026 |
| Senlac Limited | Extraterritorial | 2007 |
| Sensible Dave Ltd | Manufacturing | 2017 |
| Sentry SE Construction Ltd | Construction | 2022 |
| Serrata Limited | Other services | 2024 |
| Servivla Ltd | Wholesale & retail | 2025 |
| Seven Let’S Ltd | Real estate | 2021 |
| Seventh Union Limited | Administrative & support | 2017 |
| Seymour Wilson Ltd | Professional & scientific | 2026 |
| Shaker Isaac Medical Services Limited | Health & social care | 2005 |
| Shand Contractors Ltd | Construction | 2025 |
| Shanic Procurement Ltd. | Wholesale & retail | 2015 |
| Sharebond Freehold Ltd | Households | 2021 |
| Sharp Accountancy Limited | Professional & scientific | 2002 |
| Sharp and Shine Ltd | Administrative & support | 2025 |
| Sharp Raiser Limited | Professional & scientific | 2018 |
| Sharp Solutions Consultancy Ltd | Information & communication | 2015 |
| SHC 1201 Limited | Real estate | 2023 |
| Shellex Limited | Construction | 2014 |
| Sherwood Roofing Contractors Limited | Construction | 2013 |