| Poplar Farm Produce Ltd | Agriculture & fishing | 2024 |
| Poppy Sports Limited | Arts & recreation | 2018 |
| Pplc Ltd | Information & communication | 2010 |
| Prasca Limited | Wholesale & retail | 2015 |
| Prestbury Care Providers Ltd | Health & social care | 2017 |
| Print for ALL Limited | Manufacturing | 2004 |
| Proactive Sealant Services Limited | Construction | 2012 |
| Property Operations Limited | Construction | 2026 |
| PSG Container Ltd | Hospitality | 2025 |
| Puddle Ducks Hillcrest Ltd | Health & social care | 2022 |
| Pump House Enterprises Limited | Real estate | 2021 |
| Pure Portland Management Limited | Real estate | 2007 |
| QAI (Wales) Ltd | Professional & scientific | 2011 |
| Qbitec Limited | Administrative & support | 2015 |
| QW Solutions Limited | Wholesale & retail | 2008 |
| R & P Baker (Seeds) Limited | Wholesale & retail | 1987 |
| R H R Engineering Limited | Wholesale & retail | 2004 |
| R J Beer and SON Limited | Construction | 2012 |
| R S Joinery (Downham Market) Limited | Construction | 2002 |
| Radiance Medical Clinic Limited | Health & social care | 2017 |
| Rainesretroracers Ltd | Wholesale & retail | 2024 |
| Ralstra Ltd | Wholesale & retail | 2021 |
| Rand Ideas Ltd | Information & communication | 2022 |
| RAY Langleys Building Services Ltd | Construction | 2023 |
| Raymond Paul Developments Ltd | Construction | 2021 |
| Red Kite Properties Ltd | Real estate | 2018 |
| Regent Close Denver (Residents Management) Company Limited | Households | 2009 |
| Relational Consultancy Ltd | Information & communication | 2025 |
| Reno Developments (Norfolk) Limited | Real estate | 2026 |
| Richard III Legacy Limited | Professional & scientific | 2016 |
| Richard James Buildings Ltd | Construction | 2020 |
| Rising Lodge Ltd | Wholesale & retail | 2021 |
| RMP Automotive Services Ltd | Wholesale & retail | 2020 |
| Rochester Farm Contracts Limited | Agriculture & fishing | 2010 |
| Rochester Farm Limited | Agriculture & fishing | 1959 |
| ROD Armstrong Ltd | Information & communication | 2016 |
| Rootl Marketing Limited | Information & communication | 2026 |
| Rowe Management Limited | Construction | 1987 |
| Ruposhi London Private Ltd | Wholesale & retail | 2025 |
| Rustic Warehouse Norfolk Limited | Wholesale & retail | 2015 |
| Ryston Mortgages Limited | Financial services | 2026 |
| S and P Digital Ltd | Information & communication | 2023 |
| S C L Decorating Limited | Construction | 2024 |
| S C L Interiors (London) Limited | Construction | 2003 |
| S Ward Holdings Ltd | Financial services | 2023 |
| Safe Access Ltd | Construction | 2025 |
| Saiomsubs Limited | Wholesale & retail | 2018 |
| Sandles Car Supermarket Limited | Extraterritorial | 2014 |
| Sandles Limited | Wholesale & retail | 2014 |
| Sandra's Pets Ltd | Wholesale & retail | 2025 |
| Sarph Holdings Limited | Professional & scientific | 2026 |
| Saturn Seeds Holdings Ltd | Financial services | 2025 |
| Saxon Clothing Ltd | Wholesale & retail | 2023 |
| Saxon Flour Mill Limited | Wholesale & retail | 2017 |
| SC Subsea Technical Services Limited | Mining & quarrying | 2013 |
| Scannell Designs Ltd | Professional & scientific | 2026 |
| Secured and Supplied Ltd | Wholesale & retail | 2025 |
| Seniors Helping Seniors (East Sussex) Ltd | Health & social care | 2025 |
| Service Ceilings (Holdings) Limited | Construction | 2019 |
| Service Ceilings Limited | Construction | 1979 |
| Shadow Office Solutions Ltd | Professional & scientific | 2025 |
| Shelly&Beau Ltd | Wholesale & retail | 2025 |
| Shield Renewables Limited | Financial services | 2024 |
| Shire Fine Foods Holdings Limited | Financial services | 2023 |
| Shire Fine Foods Limited | Wholesale & retail | 2020 |
| Shire Foods East Anglia Limited | Wholesale & retail | 2010 |
| Siegetone Limited | Real estate | 1978 |
| Sierra Group Ltd | Information & communication | 2020 |
| Simons & Benskin Limited | Manufacturing | 2017 |
| Simplify Link Limited | Professional & scientific | 2018 |
| Sjbm Ltd | Manufacturing | 2022 |
| Skull & Bone Ltd | Real estate | 2025 |
| Smart Refurbishments Ltd | Construction | 2024 |
| Soleva Limited | Professional & scientific | 2025 |
| Solutionj Limited | Information & communication | 2007 |
| Southery Automation Limited | Professional & scientific | 2025 |
| Soyed ALI and Co Ltd | Hospitality | 2025 |
| Spectrum Toners Limited | Wholesale & retail | 2016 |
| Sphp Rentals Ltd | Real estate | 2025 |
| Spice HUT DM Ltd | Hospitality | 2023 |
| Spiced HUT Ltd | Hospitality | 2026 |
| Spirius Ltd | Wholesale & retail | 2020 |
| Squirreled Away Ltd | Hospitality | 2018 |
| SRG Developments Group Ltd | Real estate | 2020 |
| SSC Property Solutions Limited | Real estate | 2025 |
| ST Robotics Ltd | Professional & scientific | 2014 |
| St.George's Guildhall and Creative Hub Ltd | Arts & recreation | 2022 |
| Stampcrete UK Global Ltd | Construction | 2026 |
| Stampcrete UK Ltd | Administrative & support | 2024 |
| Stampede Press UK Ltd | Professional & scientific | 2012 |
| Station Street Freehold Limited | Real estate | 2019 |
| STL Construction & Groundworks Ltd | Construction | 2025 |
| Stowfields Developments Limited | Construction | 2020 |
| Streamline Kitchens D&S Ltd | Manufacturing | 1985 |
| Streamline Kitchens Ltd | Manufacturing | 2024 |
| Sumas (Norfolk) Limited | Real estate | 2020 |
| Summit Sports & Classics Ltd | Wholesale & retail | 2021 |
| Super Liver Ltd | Hospitality | 2024 |
| Suzuki Performance Limited | Wholesale & retail | 2016 |
| Swan Youth Project (Norfolk) Ltd | Health & social care | 2011 |