| Rotork Overseas Limited | Professional & scientific | 1971 |
| Rotork P.L.C. | Professional & scientific | 1957 |
| Rotork Pension Trustees Limited | Financial services | 1979 |
| Rotork UK Limited | Manufacturing | 1973 |
| Round Marketing & Design Limited | Professional & scientific | 2010 |
| Route 33 Limited | Manufacturing | 2017 |
| Rowan & George Ltd | Construction | 2025 |
| Rowdy Bags UK Ltd | Wholesale & retail | 2020 |
| Rowena Stott (Designs) Limited | Arts & recreation | 1978 |
| Royal Osteoporosis Society | Health & social care | 2003 |
| Royds LLP | | 2007 |
| RPB Property Consultants Limited | Real estate | 2015 |
| RS Bath Ltd | Other services | 2025 |
| RTC Fire & Security Limited | Construction | 2010 |
| Ruaridh MCC Limited | Arts & recreation | 2025 |
| Ruby's Shepherds Huts Ltd | Real estate | 2022 |
| Rude Health Consulting Limited | Professional & scientific | 2017 |
| Rudy Property Company Ltd | Real estate | 2024 |
| Rugs Boutique Ltd | Wholesale & retail | 2021 |
| Rule Investments Limited | Real estate | 2016 |
| Runwise Limited | Information & communication | 2004 |
| Rush Hill Developments Limited | Construction | 2022 |
| Rush Hour Lounge Limited | Hospitality | 2024 |
| Russell and Crate Ltd | Other services | 2021 |
| Russell Brooks Hairdressing & Hairextensions Ltd | Other services | 2016 |
| Russell Brothers Development Limited | Construction | 2005 |
| Russell Covey Limited | Arts & recreation | 2019 |
| Russell Mews (Chipping Sodbury) Management Company Limited | Households | 2026 |
| Russell Sprout Limited | Wholesale & retail | 2024 |
| Russhell Limited | Information & communication | 2021 |
| Rust Tech Limited | Information & communication | 2024 |
| Ruth Timms Yoga Ltd | Arts & recreation | 2024 |
| Rutherford Place Management Company Limited | Households | 2004 |
| Rutts Surveys Ltd | Construction | 2019 |
| RVO Consultants Ltd | Financial services | 2025 |
| RW Gower Street Limited | Hospitality | 2010 |
| RW Greenside Place Limited | Hospitality | 2010 |
| RW Threadneedle Street Limited | Hospitality | 2010 |
| Rwes-Medical Limited | Professional & scientific | 2015 |
| RWK Goodman Employee Services Limited | Administrative & support | 2005 |
| RWK Goodman LLP | | 2011 |
| Rydell Bartwo Ltd | Professional & scientific | 2011 |
| Ryder Masonry Ltd | Construction | 2017 |
| Ryecroft Group Ltd | Information & communication | 2013 |
| Ryze Technology Solutions Limited | Information & communication | 2024 |
| S & D Bryant Properties Ltd | Real estate | 2024 |
| S B Skips Limited | Water & waste | 2022 |
| S C Holdings (Bath) Ltd | Financial services | 2019 |
| S Cooke Consulting Limited | Professional & scientific | 2012 |
| S Cutler Ltd | Professional & scientific | 2015 |
| S E S Construction (South West) Ltd | Construction | 2019 |
| S G Gerrard Solutions Limited | Administrative & support | 2009 |
| S G Perkins Limited | Agriculture & fishing | 2020 |
| S H Services (Somerset) Limited | Construction | 2016 |
| S Mahar Limited | Real estate | 2025 |
| S P Masonry Limited | Manufacturing | 2008 |
| S R Parkinson Ltd | Construction | 2023 |
| S S Tennis Ltd | Education | 2015 |
| S Scape Ltd | Professional & scientific | 2010 |
| S T Osteopathic Services Ltd | Health & social care | 2003 |
| S W C Howard Limited | Extraterritorial | 2014 |
| S&A FAN Limited | Real estate | 2017 |
| S&B Originals Ltd | Information & communication | 2022 |
| S&J Community Services Limited | Health & social care | 2017 |
| S. & C. Thermofluids Limited | Professional & scientific | 1986 |
| S. C. Roofing Limited | Construction | 2015 |
| S. M. Brine Limited | Construction | 2003 |
| S. P. Isaac (Bath) Limited | Hospitality | 2012 |
| S. P. W. Mechanical Installation Ltd | Construction | 2019 |
| S.A. Wear Limited | Professional & scientific | 2012 |
| S.C. Estates Ltd | Real estate | 2023 |
| S.J Floyd Limited | Professional & scientific | 2008 |
| S.M Ceramics Ltd | Construction | 2023 |
| S.P.A. (Peggy Dodd) Bath | Health & social care | 1996 |
| S11X Ltd | Real estate | 2023 |
| S2R Services Limited | Information & communication | 2016 |
| Sabata Ltd | Financial services | 2024 |
| Saccmar Limited | Other services | 2012 |
| Sacco Aesthetics Ltd | Health & social care | 2020 |
| Sack Property Ltd | Real estate | 2022 |
| Sacred COW Media Limited | Information & communication | 2005 |
| Sacred Elephant Limited | Wholesale & retail | 2021 |
| Sadad Limited | Hospitality | 2018 |
| Sadler Street Flats Limited | Households | 2015 |
| Safe and Sound Wiltshire Homecare Ltd | Health & social care | 2025 |
| Safe DD Ltd | Professional & scientific | 2010 |
| Safe Debit Ltd | Professional & scientific | 2010 |
| Safe Hands Consulting Ltd | Administrative & support | 2024 |
| Safe in Your Hands Ltd | Education | 2025 |
| Safe Structures Limited | Administrative & support | 2001 |
| Safecracker Property Holdings UK Limited | Construction | 2019 |
| Sage & SON Property Ltd | Real estate | 2022 |
| Sage Clinical Psychology Services Ltd | Health & social care | 2024 |
| Sage Developments (SW) Limited | Construction | 2010 |
| Sage, Lane Solutions Limited | Professional & scientific | 2005 |
| Sahoy Limited | Professional & scientific | 2018 |
| SAI Systems Ltd | Information & communication | 2015 |
| Sail and Cloth Ltd | Extraterritorial | 2025 |
| Saker Holdings Limited | Financial services | 2024 |
| Salamander Global Ltd | Hospitality | 2020 |