| Rocque's AD & Edit Ltd. | Information & communication | 2014 |
| Rodriguez Wise Consulting Limited | Wholesale & retail | 2025 |
| Rogerson Hampshire Homes Limited | Real estate | 2026 |
| Roguegunners Productions Ltd | Arts & recreation | 2021 |
| ROK Construction Limited | Construction | 2014 |
| Rolfe & SON Window Cleaning Limited | Administrative & support | 2022 |
| Roman Drives and Landscapes Ltd | Administrative & support | 2025 |
| Romii Ltd | Hospitality | 2026 |
| Romk Limited | Wholesale & retail | 2024 |
| Ronclad Ltd | Construction | 2025 |
| Ronnoc Limited | Professional & scientific | 2008 |
| Roof Technology Limited | Construction | 2007 |
| Roofology Building Services Ltd | Construction | 2025 |
| Rooftek Advance Limited | Construction | 2015 |
| Rookery Nook Limited | Hospitality | 2022 |
| Rooksdown Pharmacy Limited | Wholesale & retail | 2013 |
| Rookstone Ltd | Professional & scientific | 2025 |
| Room 6 Ltd | Information & communication | 2022 |
| Rooms With a Roof Limited | Construction | 2014 |
| Roomys Shop UK Ltd | Wholesale & retail | 2025 |
| Rootshell Security Ltd | Information & communication | 2019 |
| Rootzgb Ltd | Wholesale & retail | 2025 |
| ROR Consulting UK Ltd | Administrative & support | 2024 |
| Roschild Limited | Hospitality | 2008 |
| Rose & Robert Home Ltd | Manufacturing | 2026 |
| Rose & Thorne Ltd | Information & communication | 2016 |
| Rose Heating Services Ltd | Professional & scientific | 2021 |
| Rose Lettings & Maintenance Limited | Real estate | 2018 |
| Rose of Jericho (Lime) Limited | Manufacturing | 2009 |
| Rose of Jericho Limited | Construction | 2000 |
| Rosebelle Landscapes Ltd | Administrative & support | 2020 |
| Rosegarth Development’S Ltd | Financial services | 2025 |
| Rosemount Financial Solutions (IFA) Limited | Financial services | 2006 |
| Rosemount Financial Solutions Limited | Financial services | 2006 |
| Roses Partnership Ltd | Construction | 2019 |
| Rosewood Park Management Company Limited | Households | 2004 |
| Rosmarine Manufacturing Co. Limited | Extraterritorial | 2003 |
| Rosy Bidco Limited | Financial services | 2020 |
| Rosy Holdco Limited | Financial services | 2020 |
| Rosy Midco Limited | Financial services | 2020 |
| Rosy Topco Limited | Financial services | 2020 |
| Rounces Autos Limited | Wholesale & retail | 2017 |
| Rounding Property Law Limited | Professional & scientific | 2022 |
| Roundmead Logistics Ltd | Transport & logistics | 2026 |
| Roundwood Shooting Ground Ltd | Arts & recreation | 2018 |
| Roverrange Ltd | Wholesale & retail | 2020 |
| Rowgreen Limited | Information & communication | 2011 |
| Royelambience Ltd | Construction | 2023 |
| RPJ Associated Consultants Limited | Administrative & support | 2006 |
| RS Agri Ltd | Agriculture & fishing | 2009 |
| RSA Safety Management Ltd | Professional & scientific | 2014 |
| RSS Investment Properties Limited | Real estate | 2025 |
| RTT Titanbuild Ltd | Construction | 2026 |
| Rubicon Sports Ltd | Wholesale & retail | 2013 |
| Ruby Joy Ltd | Real estate | 2025 |
| Ruby's Rasoi Limited | Manufacturing | 2026 |
| Rudis the Lunch Van Ltd | Hospitality | 2018 |
| Rudnicki Family Ltd | Real estate | 2025 |
| Ruffena Capital Asset Management Limited | Financial services | 2013 |
| Rugbytots Winchester LLP | | 2017 |
| Ruma Group Ltd | Financial services | 2026 |
| Rumour Solutions Limited | Professional & scientific | 2026 |
| Running Land and Development Ltd | Professional & scientific | 2025 |
| Rupert Vitoria Management Limited | Administrative & support | 2007 |
| Ruth White Yoga Products Ltd | Wholesale & retail | 2003 |
| RV Investor (NO 1) Limited | Financial services | 2008 |
| Rvca Limited | Wholesale & retail | 2010 |
| RW Fitness Ltd | Arts & recreation | 2018 |
| Rwdc Services Ltd | Professional & scientific | 2025 |
| RWM Associates Limited | Information & communication | 2014 |
| RX Consult Ltd | Professional & scientific | 2025 |
| Ryan Resources Ltd | Water & waste | 2015 |
| RZ Trade Ltd | Wholesale & retail | 2019 |
| S & H Residents Association Limited | Households | 2023 |
| S & S Care Limited | Health & social care | 2007 |
| S B B Dental Care Limited | Health & social care | 2013 |
| S E Green Electrical and Mechanical Services Ltd | Manufacturing | 2016 |
| S L Booker Haulage Ltd | Construction | 2017 |
| S M Design Limited | Construction | 2015 |
| S M Investco Ltd | Construction | 2024 |
| S Morland Property Services Limited | Real estate | 2017 |
| S&Jj Ltd | Real estate | 2024 |
| S&U Movements Ltd | Transport & logistics | 2023 |
| S'Aaa - Global Partnerships Ltd | Professional & scientific | 2019 |
| S-Cubed Advisory Ltd | Professional & scientific | 2024 |
| S-Dee's Service Ltd | Health & social care | 2023 |
| S. Mills Ltd | Administrative & support | 2014 |
| S. Tutwane Ltd | Health & social care | 2014 |
| S. Weiner Limited | Financial services | 1946 |
| S.A.M. Cleaning Limited | Administrative & support | 2002 |
| S.Dominic Ltd | Transport & logistics | 2024 |
| S.E.L.F International Clothing Brands Ltd | Wholesale & retail | 2023 |
| S.G. Consulting (South East) Limited | Professional & scientific | 2004 |
| S.H Electrical (Basingstoke) Ltd | Construction | 2018 |
| S.J.B. Technical Services Limited | Construction | 1998 |
| S.S. Horton & Sons | | 1993 |
| S2 Capital Ltd | Financial services | 2019 |
| S2 Hair Studio Ltd | Other services | 2026 |
| SA & SH Consultancy Limited | Health & social care | 2023 |
| SA Bright Smile Ltd | Health & social care | 2022 |