| Novalia Finance - ABL Limited | Financial services | 2025 |
| Novalia Finance Limited | Financial services | 2024 |
| Nutcombe Height Residents Limited | Households | 1982 |
| Oak Drey Limited | Financial services | 2025 |
| Oak House Residents Limited | Households | 1975 |
| Oakland Nominees Limited | Financial services | 1983 |
| Okeeffe and Associates Consulting Limited | Professional & scientific | 2009 |
| Old Go Tennis Limited | Arts & recreation | 2008 |
| Oliver Charles Productions Ltd | Arts & recreation | 2026 |
| Optara Partners Ltd | Professional & scientific | 2025 |
| Option Special Effects Limited | Information & communication | 2020 |
| Opulead Limited | Professional & scientific | 2025 |
| Orchard Learning and Development Limited | Professional & scientific | 2001 |
| Orchard Pictures Ltd | Professional & scientific | 2014 |
| P G Wise Limited | Wholesale & retail | 2016 |
| P Withey Limited | Construction | 2011 |
| Palliser Court (Beacon Hill Road) Management Limited | Households | 1994 |
| Park Drive Pictures Ltd | Information & communication | 2005 |
| Park ROW Web Development Limited | Administrative & support | 2012 |
| Parklands 2004 RTM Company Limited | Administrative & support | 2004 |
| Pascoe & TEW Associates Ltd | Administrative & support | 2011 |
| Pathways Education Limited | Education | 2019 |
| Patrick Thomas Limited | Health & social care | 2012 |
| Paul Risbridger Gardening Services Limited | Administrative & support | 2005 |
| PCP Trans Ltd | Transport & logistics | 2026 |
| Pearson Adams Developments Ltd | Construction | 2016 |
| Pearson Adams Ltd | Real estate | 2015 |
| Pearson Products FBA Ltd | Wholesale & retail | 2021 |
| Pearson Products Ltd | Wholesale & retail | 2020 |
| Percy Road Properties Ltd | Real estate | 2023 |
| Phaselocked Technologies Ltd | Manufacturing | 2023 |
| Phlext Ltd | Professional & scientific | 2021 |
| Picham Limited | Professional & scientific | 2002 |
| Pickering&Smith Limited | Information & communication | 2013 |
| Pickwick Surrey Ltd | Hospitality | 2019 |
| Pieke Products Limited | Wholesale & retail | 1998 |
| Pinewell Consultancy Ltd | Professional & scientific | 2022 |
| Pixal Property Ltd | Real estate | 2017 |
| PKG Music Ltd | Education | 2023 |
| Place Property (South) Ltd | Real estate | 2021 |
| Place Property Management Ltd | Real estate | 2015 |
| Powerdesign Consulting Limited | Professional & scientific | 2013 |
| Premier-Lettings (UK) Limited | Real estate | 2009 |
| Premium Tiles Ltd | Wholesale & retail | 2019 |
| Prime Property Mangement Ltd | Real estate | 2025 |
| Pro-Ferb Limited | Construction | 2007 |
| Proboo Limited | Real estate | 2016 |
| Prodro Group Limited | Information & communication | 2026 |
| Production MAN Ltd | Administrative & support | 2013 |
| Public Fidelity Ltd | Manufacturing | 2024 |
| Rbcl Ltd | Professional & scientific | 2025 |
| RDH Private Ltd | Hospitality | 2024 |
| Red Rose Tea Room Ltd | Hospitality | 2014 |
| Reenergise Finance Limited | Financial services | 2010 |
| Reenergise Limited | Professional & scientific | 2010 |
| Reenergise Projects Limited | Professional & scientific | 2010 |
| Rees Roberts Finance Ltd | Professional & scientific | 2018 |
| Rich Brett Finops Ltd | Professional & scientific | 2021 |
| RJD Transport Ltd | Transport & logistics | 2026 |
| RMK Professional Services Ltd | Professional & scientific | 2013 |
| Robertson (Priorsfield) Ltd | Construction | 2024 |
| Robertson Nursing Home Limited | Health & social care | 1996 |
| Rock Hunter Ltd | Professional & scientific | 2000 |
| Rockdale House Management Limited | Households | 1994 |
| Rockface Capital Advisors Ltd. | Professional & scientific | 2013 |
| Rockface Capital Ltd | Professional & scientific | 2014 |
| Roger Marchant Ltd | Construction | 2015 |
| ROK Businesses Limited | Other services | 2003 |
| Rolland Consulting Ltd | Professional & scientific | 2020 |
| Rooks Construction Ltd | Construction | 2021 |
| Ross Performance Management Limited | Professional & scientific | 2013 |
| Ruby Shoe Events Ltd | Professional & scientific | 2014 |
| RW Best & Co. Limited | Information & communication | 2023 |
| S M Food & Wines Ltd | Wholesale & retail | 2022 |
| S.C.S. Exhibitions Limited | Professional & scientific | 1987 |
| Salpetech Ltd | Professional & scientific | 2017 |
| Samla Ltd | Professional & scientific | 2020 |
| Sarah Wade Interiors Limited | Professional & scientific | 2022 |
| Scalenet Ltd | Real estate | 2005 |
| Scenic Landscapes and Design Ltd | Administrative & support | 2024 |
| School of Send Limited | Education | 2020 |
| SCS Concepts & Exhibitions Limited | Professional & scientific | 1997 |
| SCS Design & Construction Limited | Professional & scientific | 2003 |
| SEE Signs Ltd | Manufacturing | 2017 |
| SEE the Link Limited | Information & communication | 1999 |
| Sellitto Developments Ltd | Construction | 2009 |
| Sequoia Studios Ltd | Professional & scientific | 2022 |
| Servergro Ltd | Professional & scientific | 2025 |
| Seven Fish Baskets Ltd | Wholesale & retail | 2019 |
| Seventy Belsize Park Gardens Management Limited | Professional & scientific | 1979 |
| Shandon Consulting Ltd | Professional & scientific | 2010 |
| Simmons Property Services Limited | Financial services | 2015 |
| Simply Stem Limited | Professional & scientific | 2020 |
| Sleep Guildford Ltd | Wholesale & retail | 2026 |
| Smart Desk Digital Ltd | Professional & scientific | 2026 |
| Smartenergy Finance One Limited | Administrative & support | 2013 |
| Smartenergy Finance Two Limited | Administrative & support | 2014 |
| SNX 504 Limited | Financial services | 2017 |
| SNX 505 Limited | Extraterritorial | 2017 |
| SNX Dulwich Properties Ltd | Real estate | 2024 |