| Rose Finance Limited | Professional & scientific | 2024 |
| Rose of London Limited | Manufacturing | 2012 |
| Rose Peak Enterprises Ltd | Manufacturing | 2024 |
| Rosedene Holdings Limited | Financial services | 2016 |
| Rosetta Cafe Ltd | Hospitality | 2024 |
| Rosie COX Creative Services Limited | Professional & scientific | 2016 |
| Rossetti Gardens Management Company Limited | Households | 2009 |
| Roundabout Facilities CIC | Information & communication | 2020 |
| Route One Properties Limited | Real estate | 2024 |
| Rowan House Management Company Limited | Households | 1995 |
| Rowlands Resources Ltd | Professional & scientific | 2026 |
| RSB Real Estate Ltd | Real estate | 2018 |
| RSW Development Services Limited | Professional & scientific | 2004 |
| Rubicon Health Consulting Limited | Professional & scientific | 2010 |
| Rude Growth Limited | Information & communication | 2020 |
| Rufinity Ltd | Financial services | 2024 |
| Rumen Limited | Transport & logistics | 2007 |
| Rumsugar Rock Limited | Real estate | 2017 |
| Rusaor Ltd | Professional & scientific | 2025 |
| Rushmon Court (Freehold) Limited | Households | 2005 |
| Rushmon Court Residents Association Limited | Households | 1987 |
| Rushmon Place Residents Company Limited | Households | 1994 |
| Ruspers Development Limited | Construction | 2003 |
| Russell & Co Serviced Offices Ltd | Real estate | 2015 |
| Russell Court Freeholders Limited | Real estate | 1992 |
| Rutland Lodge Limited | Households | 2008 |
| Rwds Group Ltd | Financial services | 2024 |
| RWK Vision Ltd | Information & communication | 2014 |
| Rwmretail Ltd | Wholesale & retail | 2022 |
| S E Design London Limited | Wholesale & retail | 2006 |
| S J H Carrier Services Ltd | Information & communication | 2015 |
| S L Inventories Limited | Households | 2025 |
| S-Kay Cleaning Services Ltd | Administrative & support | 2024 |
| S.P100 Limited | Health & social care | 2017 |
| S.Sutton & Sons (Farmers) Limited | Professional & scientific | 1953 |
| Saajan Patel Property Investments Ltd | Administrative & support | 2017 |
| Sabatini Capital Ltd | Construction | 2025 |
| Sabfoodservices Ltd | Hospitality | 2025 |
| Sable (Surrey) Limited | Real estate | 2007 |
| Sabp Care Ltd | Health & social care | 2014 |
| Safe Haven London | Real estate | 2005 |
| Safe Scaffold Inspections Limited | Construction | 2022 |
| Saferoute Asbestos Ltd | Construction | 2025 |
| Sage Door Limited | Households | 2021 |
| Sahas Investments Limited | Real estate | 2016 |
| Sahas Medical Limited | Real estate | 2016 |
| Saiga Advisors Limited | Financial services | 2020 |
| Sajan & Sajan Limited | Information & communication | 2022 |
| Saligo Design Limited | Manufacturing | 2007 |
| Saligo Solutions Limited | Financial services | 2023 |
| Salix Close Management Company Limited | Households | 2001 |
| Salt Coffee Limited | Hospitality | 2026 |
| Sample Market Ltd | Wholesale & retail | 2013 |
| Sanctuarise CIC | Education | 2026 |
| Sand Martin Heights Residents Company Limited | Households | 1994 |
| Sanders Cobb Ltd | Professional & scientific | 2023 |
| Sandhills Residents Company Limited | Households | 1996 |
| Sane Consultancy Limited | Professional & scientific | 2010 |
| Sanomed Solutions Ltd | Professional & scientific | 2025 |
| Saphes Limited | Professional & scientific | 2013 |
| Sarabaite Limited | Administrative & support | 2005 |
| Saraf Holdings Ltd | Real estate | 2024 |
| Sarnia Training Limited | Education | 2006 |
| Sasbey Limited | Information & communication | 2012 |
| Sasha Enterprise Limited | Wholesale & retail | 2024 |
| Saskian Limited | Information & communication | 2006 |
| Saunas & Ice Ltd | Construction | 2025 |
| Save on IT Ltd | Wholesale & retail | 2012 |
| Saving Ace Ltd | Real estate | 2022 |
| Savvy BEE Gifts Limited | Wholesale & retail | 2020 |
| Savvy Social Limited | Professional & scientific | 2016 |
| SB Selected Beauty Ltd | Wholesale & retail | 2015 |
| Scandle Candle Ltd | Arts & recreation | 2021 |
| Scarcechain Advisors Ltd | Professional & scientific | 2025 |
| Scatterlings Brewing Ltd | Manufacturing | 2022 |
| Sccl Operations Limited | Health & social care | 2013 |
| Schala Ltd | Information & communication | 2020 |
| Schologists Health CIC | Health & social care | 2023 |
| Scout Talent Limited | Administrative & support | 2012 |
| Screen 1 Entertainment Ltd | Information & communication | 2018 |
| Scriven Property 1 Ltd | Real estate | 2021 |
| Sea & Seeds Limited | Hospitality | 2026 |
| SEALANES1 Ltd | Hospitality | 2024 |
| SEALANES2 Ltd | Real estate | 2024 |
| Seam UP Trading Ltd | Administrative & support | 2010 |
| Seamab Consultancy Limited | Professional & scientific | 1999 |
| Seamark Consulting Limited | Professional & scientific | 2020 |
| Search Consulting Solutions Limited | Information & communication | 2025 |
| Second Avenue Ltd | Information & communication | 2017 |
| Second Moon Ltd | Construction | 2021 |
| Secretariat Solutions Limited | Professional & scientific | 2008 |
| Securefort Limited | Information & communication | 2017 |
| Securesure Trustees Limited | Extraterritorial | 2020 |
| Securus Software Limited | Information & communication | 2002 |
| Sedgwick Building Services LLP | | 2005 |
| See-Ability Limited | Real estate | 1993 |
| Seismic Data People International Ltd | Professional & scientific | 2006 |
| Seland Group Ltd | Financial services | 2019 |
| Sell Electrical Limited | Construction | 2009 |
| Selvi Capital Partners Ltd | Professional & scientific | 2020 |