| Orchid Sky Construction Limited | Construction | 2016 |
| Orchid Sky Investments Limited | Financial services | 2016 |
| Orchid Sky Recycling Limited | Water & waste | 2021 |
| Orchid Sky Timber Limited | Extraterritorial | 2015 |
| OSG 2026 Limited | Financial services | 2026 |
| Osiris Integrated Solutions Limited | Professional & scientific | 2014 |
| Ozzo Tools Ltd | Wholesale & retail | 2024 |
| P R Homes Limited | Construction | 2008 |
| P.B. Asher (Holdings) Limited | Financial services | 2006 |
| P.B. Asher Diesel Injection Engineers Ltd. | Administrative & support | 1998 |
| P.S. Computer Services Limited | Information & communication | 1988 |
| Pangbourne Plant Hire Ltd | Construction | 2012 |
| PBA Diesel Holdings Limited | Administrative & support | 2018 |
| Peace Family Investments Ltd | Financial services | 2026 |
| Peacock and Lily Limited | Wholesale & retail | 2025 |
| Pearce International Limited | Professional & scientific | 2001 |
| Pennford Holdings Limited | Financial services | 2007 |
| Penson Limited | Real estate | 2016 |
| PFC Marine Ltd | Professional & scientific | 2004 |
| Physio 2 Fit Limited | Health & social care | 2010 |
| Picm Services Limited | Financial services | 2014 |
| Pines Property Dorset Limited | Construction | 2021 |
| Plustree Properties Ltd | Real estate | 2025 |
| Point One Design Limited | Other services | 2003 |
| Premier PAN International Holdings Limited | Manufacturing | 2017 |
| Prosound Communications Limited | Arts & recreation | 1989 |
| Pure Windows Ltd | Construction | 2015 |
| R Community CIC | Education | 2015 |
| R&D Tax Box Limited | Professional & scientific | 2019 |
| Rainbows Pre-School Limited | Education | 2017 |
| RAM Alley Property Holdings Limited | Real estate | 2024 |
| Rankine Healthcare Marketing Limited | Professional & scientific | 2019 |
| Real Life Advice Limited | Financial services | 2017 |
| Redman Family Investments Ltd | Financial services | 2026 |
| Relmes Forklift Driver Training Limited | Professional & scientific | 2017 |
| Renara Partners Ltd | Professional & scientific | 2026 |
| Renegade Solutions Ltd | Water & waste | 2023 |
| Rentool Limited | Administrative & support | 2002 |
| Reywall Daggert Limited | Construction | 2008 |
| Riva Europe Limited | Manufacturing | 2003 |
| Riva Holdings Limited | Professional & scientific | 2008 |
| RLG Projects Ltd | Professional & scientific | 2000 |
| Rocmor Ltd | Real estate | 2011 |
| Rogers Bespoke Ltd | Construction | 2017 |
| Roly Poly Goalie Limited | Arts & recreation | 2017 |
| Romsey Accountants GDT Ltd | Professional & scientific | 2018 |
| Ronin Limited | Administrative & support | 2007 |
| Roofline Group (Holdings) Limited | Administrative & support | 2003 |
| Roofline Safety Systems Limited | Construction | 2006 |
| Ropley House Estates Limited | Real estate | 2015 |
| Rose Wealth Management Limited | Professional & scientific | 2020 |
| Rowlands Associates Ltd | Administrative & support | 2011 |
| Ruhi Stores Ltd | Wholesale & retail | 2023 |
| Rymill Property Developments Limited | Construction | 2000 |
| S J H Recycling Ltd | Water & waste | 2016 |
| Safesleep Medical Limited | Health & social care | 2012 |
| Saffronland Care Limited | Health & social care | 2006 |
| Saffronland Holdings Limited | Health & social care | 2003 |
| Saffronland Homes Limited | Health & social care | 2003 |
| Sarsen Press Limited | Manufacturing | 2002 |
| Scarlett Choreography Ltd | Arts & recreation | 2016 |
| Sceptre Protection Ltd | Administrative & support | 2022 |
| SDR Realisations 2024 Limited | Administrative & support | 2015 |
| SDW Recruitment Limited | Administrative & support | 2004 |
| Seaquest Explorers (Africa) Limited | Professional & scientific | 1994 |
| Secretarial Law Limited | Professional & scientific | 2003 |
| Sethlan Engineering Limited | Professional & scientific | 2024 |
| Sharples Associates Limited | Other services | 2009 |
| Shock-Wbv Limited | Wholesale & retail | 2021 |
| Simply Intelligent Limited | Information & communication | 2020 |
| Simpson Hilder Associates Limited | Professional & scientific | 1997 |
| Simpson Hilder Holdings Limited | Financial services | 2025 |
| SIX SIX (Holdings) Limited | Financial services | 2014 |
| Skylark Meadows Management Company Limited | Households | 1997 |
| Smallbrook Developments Limited | Real estate | 2020 |
| SME Training Ltd | Education | 2016 |
| Smuk Marketing and PR Limited | Professional & scientific | 2019 |
| SO53 Ltd | Professional & scientific | 2012 |
| Soteria Consulting Limited | Professional & scientific | 2008 |
| Soteria Defence and Security Limited | Professional & scientific | 2013 |
| Soteria Development and Trials Services Ltd | Professional & scientific | 2016 |
| Southdown Investments Limited | Construction | 2008 |
| Southern Fiduciary Ltd | Professional & scientific | 2013 |
| Southern Land (Virginia) Ltd | Real estate | 2015 |
| Southern Land Consultancy Limited | Real estate | 2011 |
| Sparkstone Technology Limited | Information & communication | 2004 |
| SPR Plumbing and Heating Limited | Construction | 2016 |
| Springo Holdings Limited | Financial services | 2021 |
| SQL Development Services Limited | Manufacturing | 2011 |
| Square One Construction Holding Limited | Financial services | 2020 |
| Standing Strong Limited | Financial services | 2025 |
| Stoneman UK Holdings Ltd | Financial services | 2019 |
| Student Housing (Stanmore) Limited | Real estate | 2020 |
| Student Housing (Winchester) Limited | Real estate | 2020 |
| Studio Twenty 3 - Academy Limited | Education | 2020 |
| Superb Productions Limited | Arts & recreation | 2016 |
| SW Trailer Services Limited | Manufacturing | 2006 |
| Swjf Holdings Limited | Real estate | 2022 |
| T & T Investments Limited | Financial services | 2011 |
| TAB Landscapes Southern Limited | Administrative & support | 2014 |