| Sivvery Properties Limited | Real estate | 2001 |
| SIX Town Housing Limited | Households | 2003 |
| Sixteen Catering Ltd | Hospitality | 2023 |
| Sixth Star Limited | Hospitality | 2019 |
| Size? Limited | Professional & scientific | 2013 |
| SJ Driveways Ltd | Construction | 2019 |
| SJ Invesments Manchester Ltd | Real estate | 2018 |
| SJ Property Project Management Limited | Construction | 2015 |
| SJ1 Holdings Ltd | Real estate | 2024 |
| SJ1 Property Ltd | Real estate | 2025 |
| SJB Auto Services (Bury) Limited | Wholesale & retail | 2013 |
| SJD Blinds Limited | Construction | 2021 |
| SJD Inspection Services Ltd | Professional & scientific | 2019 |
| SJF Educational Consultants Limited | Professional & scientific | 2023 |
| SJH Contracting North West Limited | Transport & logistics | 2020 |
| SJH North West Limited | Other services | 2017 |
| Sjjb Transport Ltd | Transport & logistics | 2025 |
| SJM Online Retail Limited | Wholesale & retail | 2005 |
| SJS Car Sales Limited | Wholesale & retail | 2025 |
| SK Media Bury Ltd | Wholesale & retail | 2026 |
| SK Mobiles Ltd | Wholesale & retail | 2012 |
| SK Property Holdings Limited | Financial services | 2020 |
| SKG Catering Ltd | Manufacturing | 2023 |
| Skin and Laser Clinic UK Limited | Other services | 2021 |
| Skin Medics MDH Ltd | Health & social care | 2019 |
| Skinplicity Manchester Ltd | Other services | 2021 |
| Skinvestment Clinic Ltd | Other services | 2026 |
| Skinvestment Retail Ltd | Wholesale & retail | 2026 |
| Skipsafe Limited | Administrative & support | 2012 |
| SKM Limited | Wholesale & retail | 2000 |
| SKS Environmental Services Ltd | Professional & scientific | 2019 |
| Sky Bar (Bury) Limited | Hospitality | 2018 |
| Sky Design & Consulting Limited | Professional & scientific | 2020 |
| Sky Eagle EYE Limited | Administrative & support | 2014 |
| Sky One Travel Ltd | Financial services | 2020 |
| Skyeacres Ltd | Agriculture & fishing | 2023 |
| Skyline Global Enterprises Ltd | Information & communication | 2025 |
| Skyline Recruitment Limited | Administrative & support | 2019 |
| Skyline Tech & Development Ltd | Information & communication | 2015 |
| Skyway Travel Ltd | Transport & logistics | 2017 |
| SL Contractors Ltd | Construction | 2024 |
| SL Food Groups Ltd | Hospitality | 2025 |
| SL Kitchen Concepts Limited | Wholesale & retail | 2023 |
| Slate Barbers Ramsbottom Ltd | Other services | 2018 |
| Slatted Screen Fencing Ltd | Manufacturing | 2018 |
| Sldjj Properties Limited | Real estate | 2026 |
| Sldw Group Ltd | Real estate | 2020 |
| Sleek Haircut Limited | Other services | 2021 |
| Sleek Logistics Ltd | Transport & logistics | 2022 |
| Sleep & Snuggle Ltd | Wholesale & retail | 2021 |
| Sleep Vide Ltd | Wholesale & retail | 2026 |
| SLH Financial Services Limited | Financial services | 2021 |
| SLJ Prosthetics Ltd | Health & social care | 2022 |
| Sloane Square Estates Ltd | Real estate | 2024 |
| Sloane Square Property Group Ltd | Real estate | 2025 |
| Slrc Services Limited | Information & communication | 2011 |
| SLS Design Consultants Ltd | Extraterritorial | 2008 |
| SLT for Life Ltd | Health & social care | 2020 |
| SM Corporate Consultants Limited | Professional & scientific | 2014 |
| Sm&Hm Limited | Hospitality | 2024 |
| Small Margins (2025) Ltd | Financial services | 2025 |
| Smart Apparel Sourcing Ltd | Wholesale & retail | 2026 |
| Smart Axis Computers Ltd | Wholesale & retail | 2026 |
| Smart Breakers Ltd | Wholesale & retail | 2026 |
| Smart Build Solutions (NW) Ltd | Construction | 2022 |
| Smart Choice Store Ltd | Wholesale & retail | 2026 |
| Smart Compressors & Equipment Limited | Wholesale & retail | 2012 |
| Smart Grid Solutions Ltd | Information & communication | 2003 |
| Smart Hands Support Ltd | Other services | 2024 |
| Smart Legal Costs Solutions Ltd | Professional & scientific | 2017 |
| Smart Mobile's Accessories Ltd | Wholesale & retail | 2022 |
| Smart Site Software Technologies Limited | Information & communication | 2026 |
| Smart Start Schoolwear Ltd | Wholesale & retail | 2025 |
| Smartminds Education Tutoring Limited | Education | 2026 |
| Smartwayz Ltd | Real estate | 2020 |
| Smash & Serve Ltd | Arts & recreation | 2025 |
| Smcd Properties Limited | Real estate | 2022 |
| Smetcalfe Ltd | Administrative & support | 2025 |
| SMH Trade Limited | Wholesale & retail | 2025 |
| Smiab Limited | Real estate | 2025 |
| Smile Care Bury Limited | Administrative & support | 2025 |
| Smile Carpet Cleaning Limited | Administrative & support | 2019 |
| Smile Transformation & Cosmetic Services Ltd | Health & social care | 2010 |
| Smilywolf Ltd | Wholesale & retail | 2023 |
| Smko Properties Limited | Real estate | 2025 |
| Smokes NW Ltd | Wholesale & retail | 2025 |
| Smoky Sweeps Bury Ltd | Administrative & support | 2023 |
| Smooth Combat Academy Ltd | Other services | 2022 |
| SMR Utilities Limited | Construction | 2006 |
| Smtz Properties Ltd | Real estate | 2024 |
| Smtz Property Management Ltd | Real estate | 2026 |
| Snacky DAN Digital Ltd | Professional & scientific | 2025 |
| Snag Doctor Holdings Ltd | Financial services | 2024 |
| Snapcheck Ltd | Wholesale & retail | 2023 |
| Snowden Spain Limited | Real estate | 2016 |
| Soap Opera (UK) Ltd | Other services | 2014 |
| Soap Provider Ltd | Wholesale & retail | 2017 |
| Soapopera Laundrette Ltd | Other services | 2024 |
| Soar Events Ltd | Arts & recreation | 2016 |
| Sochal Limited | Information & communication | 2017 |