| P J LEE Hire & Sales Ltd | Wholesale & retail | 2002 |
| Palette and Pigment Decorators Ltd | Other services | 2023 |
| Parkers Plumbing and Heating Limited | Construction | 2017 |
| PDQ Digital Media Solutions Limited | Manufacturing | 1996 |
| Period Property Services Limited | Construction | 2006 |
| Petersons' Properties Limited | Construction | 2015 |
| Philip Canham Ltd | Construction | 2003 |
| Pippins Candles Ltd | Wholesale & retail | 2026 |
| Platform Gallery Limited | Wholesale & retail | 2010 |
| Polly Fern Limited | Manufacturing | 2020 |
| Pondfolk Ltd | Agriculture & fishing | 2020 |
| Portobello Brewing Company Ltd | Manufacturing | 2011 |
| PRIM8 Industries Ltd | Wholesale & retail | 2019 |
| Pro Tile UK Contractors Limited | Construction | 2019 |
| Prospec Electrical Ltd | Construction | 2016 |
| Pure Ponds Ltd | Administrative & support | 2026 |
| Ramsholt Sporting Limited | Administrative & support | 2018 |
| RBM Geomatics Ltd. | Other services | 2012 |
| Read Development Builders Ltd | Construction | 2015 |
| Read Family Publishing Ltd | Information & communication | 2025 |
| Red Door Architects Ltd | Professional & scientific | 2020 |
| Red FOX Productions Limited | Information & communication | 1995 |
| Redham Farms Limited | Agriculture & fishing | 1941 |
| Refinecatch Limited | Information & communication | 1996 |
| Reilly’S Mobile Engineering Ltd | Wholesale & retail | 2025 |
| Relevant DB Admin Limited | Information & communication | 2012 |
| Remblance & Co Limited | Hospitality | 2021 |
| Returnrite Ltd | Professional & scientific | 2021 |
| Rigbey Harrison & Co. | Real estate | 1971 |
| RJ & NJ Strachan Limited | Agriculture & fishing | 2020 |
| Road Technology Limited | Professional & scientific | 1988 |
| Roadtechs Contracting Services Limited | Construction | 2016 |
| Roadtechs Europe Limited | Construction | 1996 |
| Roadtechs Holdings Limited | Professional & scientific | 2012 |
| Roadtechs International Limited | Professional & scientific | 2000 |
| Roadtechs Limited | Professional & scientific | 2000 |
| Roadtechs Specialist Products Limited | Manufacturing | 2012 |
| Roadtechs Support Services Limited | Administrative & support | 2012 |
| Roadtechs Surface Treatments Limited | Construction | 2014 |
| Roadtechs UK Limited | Professional & scientific | 2000 |
| Rory Russell Consulting Ltd | Wholesale & retail | 2024 |
| Rupert Meadows Ltd | Transport & logistics | 2020 |
| Russell Bell OFF Shore Services Ltd | Mining & quarrying | 2026 |
| Rylands Brand Design Limited | Other services | 2013 |
| S Ahmed Courier Services Limited | Transport & logistics | 2024 |
| S and B Howarth Contractors Ltd | Other services | 2016 |
| S G B Design Services Limited | Information & communication | 2016 |
| S&Bb Services (East Anglia) Limited | Construction | 2018 |
| S. J. Last Limited | Manufacturing | 2009 |
| Saltimbocca Ltd | Hospitality | 2007 |
| Sarah Brown Cards Limited | Manufacturing | 2019 |
| Saxon Place Management Company (Bungay) Limited | Real estate | 2008 |
| School Road (Earsham) Management Company Limited | Households | 2019 |
| School Road Ventures Ltd | Financial services | 2018 |
| SCLR21 Ltd | Hospitality | 2021 |
| Sejsan Limited | Wholesale & retail | 2022 |
| Severs Events Limited | Other services | 2024 |
| Sexton Farm Ltd | Agriculture & fishing | 2023 |
| Shaun Mellor Developments Limited | Construction | 2024 |
| Simply Joshimo Limited | Wholesale & retail | 2020 |
| SJ Wind Solutions Limited | Professional & scientific | 2026 |
| SMA Talent Limited | Arts & recreation | 2025 |
| SMA Talent Management Limited | Arts & recreation | 2003 |
| Smart Karton Europe Ltd | Manufacturing | 2011 |
| Smiths Property Solutions Limited | Real estate | 2025 |
| SMO Connections Limited | Wholesale & retail | 2006 |
| Solemate Design Limited | Manufacturing | 2023 |
| SON of Jack Studio Ltd | Professional & scientific | 2022 |
| SOS Online Limited | Administrative & support | 2000 |
| Sourcebistro Limited | Hospitality | 2024 |
| South Norfolk Orchestra Ltd | Arts & recreation | 2020 |
| Spec Consultants Ltd | Professional & scientific | 2024 |
| Specialised Building Repairs Limited | Construction | 2004 |
| Spheres Education CIC | Education | 2021 |
| Spice Outside Limited | Hospitality | 2006 |
| Sprake & Kingsley LLP | | 2018 |
| Sprake & Tyrrell Ltd | Construction | 2004 |
| Sprake Developments (East Anglia) Ltd | Construction | 2009 |
| SPW Creative Endeavours Limited | Arts & recreation | 2015 |
| Squaredevil Ltd | Information & communication | 2024 |
| ST. Peter's Brewery Co. Limited | Manufacturing | 1995 |
| Staithe Maltings Management Co. Ltd | Households | 1987 |
| Stanley Woodton Holdings Ltd | Real estate | 2025 |
| Stellar Electrical Contractors Limited | Construction | 2022 |
| Stephanie ANN Gould Limited | Extraterritorial | 2024 |
| Stephanie ANN Nield Limited | Extraterritorial | 2024 |
| Stepping Stones (Childrens Nursery School) Limited | Education | 2006 |
| Steve Earl Football Programmes Limited | Wholesale & retail | 2002 |
| Steven Penfield Services Limited | Professional & scientific | 2019 |
| Stockbrands Limited Liability Partnership | | 2002 |
| Stow FEN Brewing Co Ltd | Wholesale & retail | 2020 |
| Straight UP Scaffolding (East Anglia) Ltd | Construction | 2019 |
| Strategic Data Systems Limited | Information & communication | 1999 |
| Substantial Build Limited | Construction | 2020 |
| Suffolk Heritage Builders Limited | Construction | 2022 |
| Sunnyfields Apiaries Limited | Agriculture & fishing | 2021 |
| Sunrise Alliance Beverages Ltd | Manufacturing | 1997 |
| Swanston Plumbing & Heating Limited | Construction | 2019 |
| Sweeney's of Bungay Limited | Other services | 2015 |
| Swift Fitness Gym and Therapy Limited | Arts & recreation | 2019 |