| Sluvy Accounting Solutions Limited | Professional & scientific | 2024 |
| SLY Limited | Administrative & support | 2020 |
| SM @ Mill View Caravan Park Ltd | Hospitality | 2020 |
| SM Auto Service and Repairs Ltd | Wholesale & retail | 2026 |
| SM Consultancy & Holdings (SY) Ltd | Professional & scientific | 2017 |
| SM Digital and Creative Ltd | Information & communication | 2025 |
| SM Inspect Ltd | Hospitality | 2023 |
| SM Modern Developments Ltd | Real estate | 2017 |
| SM Parks & Leisure Ltd | Real estate | 2022 |
| SM Parks Ltd | Real estate | 2021 |
| SM Property Services Limited | Real estate | 2025 |
| SM Securities Ltd | Real estate | 2024 |
| SM Tax Solutions Ltd | Professional & scientific | 2018 |
| SM3 Holdings Ltd | Real estate | 2024 |
| Smaaj Ltd | Construction | 2024 |
| Smaj Ltd | Real estate | 2022 |
| Small Brown Cones Ltd | Hospitality | 2021 |
| Small Dog Big Dreams Ltd | Arts & recreation | 2023 |
| Small Girl Big GOD Ltd | Information & communication | 2024 |
| Small House Properties Ltd | Real estate | 2020 |
| Small Machines Limited | Manufacturing | 2014 |
| Small Plants Limited | Wholesale & retail | 2020 |
| Small Spark Productions Ltd | Education | 2024 |
| Smalley Ventures Ltd | Education | 2020 |
| Smallfury Limited | Professional & scientific | 2013 |
| Smallinks Ltd | Information & communication | 2026 |
| Smallshaw Cottages and Spa Ltd | Hospitality | 2022 |
| Sman Medical Ltd | Health & social care | 2025 |
| Smart & Wise Ltd | Professional & scientific | 2022 |
| Smart (School of Murtaza Academic Research & Training) Ltd | Education | 2026 |
| Smart Accounting Ltd | Professional & scientific | 2002 |
| Smart Acoustics Limited | Wholesale & retail | 2015 |
| Smart Cell Ltd | Wholesale & retail | 2019 |
| Smart Cell Properties Ltd | Real estate | 2023 |
| Smart Choice Trading Ltd | Wholesale & retail | 2025 |
| Smart Computers and Networks Limited | Information & communication | 2000 |
| Smart Dash Limited | Information & communication | 2022 |
| Smart Diamond Car Wash Ltd | Other services | 2026 |
| Smart Digital Toolbox Ltd | Information & communication | 2026 |
| Smart Doctors Ltd | Health & social care | 2023 |
| Smart Education Limited | Administrative & support | 2005 |
| Smart Electricians Ltd | Construction | 2016 |
| Smart Estate Services Ltd | Construction | 2025 |
| Smart GAS Training & Assessment Centre Limited | Education | 2016 |
| Smart Health Innovations Ltd | Health & social care | 2015 |
| Smart Home IOT Limited | Wholesale & retail | 2021 |
| Smart ICT Solutions Limited | Information & communication | 2021 |
| Smart Land Uplifts Ltd | Real estate | 2025 |
| Smart LUX Property Ltd | Transport & logistics | 2024 |
| Smart Money Flow Ltd | Professional & scientific | 2019 |
| Smart PAD Properties Ltd | Real estate | 2023 |
| Smart Property Sourcer Ltd | Real estate | 2019 |
| Smart Rainwater Limited | Extraterritorial | 2020 |
| Smart REX Ltd | Wholesale & retail | 2024 |
| Smart Saving Mobility Limited | Professional & scientific | 2019 |
| Smart Scope Solutions Limited | Wholesale & retail | 2025 |
| Smart Serve Ltd | Transport & logistics | 2017 |
| Smart Space Properties Ltd | Real estate | 2025 |
| Smart Supply Labour Limited | Administrative & support | 2018 |
| Smart Teachers Limited | Extraterritorial | 2005 |
| Smart Temporary Solutions Ltd | Administrative & support | 2018 |
| Smart Tooling Limited | Manufacturing | 2005 |
| Smart Wash Ltd | Administrative & support | 2017 |
| Smartaf Limited | Professional & scientific | 2025 |
| Smartapp Studios Limited | Information & communication | 2025 |
| Smartbarf UK Limited | Manufacturing | 2013 |
| Smarted Services Ltd | Education | 2018 |
| Smarthub Logistics Ltd | Other services | 2019 |
| Smartiful Marketing Limited | Administrative & support | 2021 |
| Smartpak Limited | Manufacturing | 2005 |
| Smartpoint Global Limited | Wholesale & retail | 2025 |
| SMARTRENT4U Ltd | Administrative & support | 2025 |
| Smartsource Solutions Ltd | Wholesale & retail | 2008 |
| Smarty Properties Ltd | Real estate | 2025 |
| Smas Space Limited | Wholesale & retail | 2017 |
| Smash Burger HUT Limited | Hospitality | 2024 |
| Smash City Burgers Limited | Hospitality | 2025 |
| Smash House Ltd | Hospitality | 2026 |
| Smashing UK Ltd | Hospitality | 2024 |
| SMB Carpets Limited | Construction | 2008 |
| SMB Commercial Tyres Limited | Wholesale & retail | 2026 |
| Smcgo Limited | Professional & scientific | 2020 |
| SMD Estates Management Ltd | Construction | 2014 |
| SMD Property Group Ltd | Real estate | 2026 |
| SMD Transport Limited | Wholesale & retail | 2019 |
| Smea Events Limited | Professional & scientific | 1991 |
| Smedbo Limited | Wholesale & retail | 1994 |
| Smeltings Farm Equestrian Training Limited | Arts & recreation | 2000 |
| SMF Group 1 Ltd | Wholesale & retail | 2020 |
| SMH (Capital Allowances) Ltd | Professional & scientific | 2018 |
| SMH Automation Limited | Wholesale & retail | 1996 |
| SMH BCL Accountants Limited | Professional & scientific | 2002 |
| SMH Commercial Finance LLP | | 2020 |
| SMH D'Arcy Howard & Co Limited | Professional & scientific | 2023 |
| SMH Elite Payroll Ltd | Administrative & support | 2023 |
| SMH Estates Ltd | Real estate | 2018 |
| SMH Finance LLP | | 2019 |
| SMH Group Audit Limited | Professional & scientific | 2017 |
| SMH Haywood & Co Limited | Professional & scientific | 2019 |
| SMH Holdings Ltd | Professional & scientific | 2017 |