| Sun&Kai Ltd | Wholesale & retail | 2020 |
| Sunbeam Fostering Agency Limited | Health & social care | 2000 |
| Sunbeam Fostering Group Limited | Health & social care | 2010 |
| Sunbeam Fostering Limited | Health & social care | 2021 |
| Sunbeam Fostering Services Ltd | Health & social care | 2007 |
| Sunbeam Management Services Limited | Real estate | 2011 |
| Sunbeam Pride Fostering Service Limited | Health & social care | 2009 |
| Sunbury Cars Centrre Limited | Wholesale & retail | 2018 |
| Sunbury Service Centre Limited | Wholesale & retail | 2019 |
| Sunco Trading Ltd | Wholesale & retail | 2023 |
| Sundari Limited | Wholesale & retail | 2005 |
| Sunil Kumar Chauffeurs Ltd | Administrative & support | 2017 |
| Sunkris Properties Limited | Construction | 2018 |
| Sunner Property Ltd | Real estate | 2024 |
| Sunny Basket Ltd | Wholesale & retail | 2026 |
| Sunny Construction Line Ltd | Construction | 2019 |
| Sunny Interiors Limited | Construction | 2017 |
| Sunny Side UP Ltd | Real estate | 2018 |
| Sunny Singh Photography Ltd | Professional & scientific | 2013 |
| Sunny Technologies Limited | Information & communication | 2004 |
| Sunny Transport Ltd | Transport & logistics | 2014 |
| Sunnybrook Care Home Limited | Health & social care | 2019 |
| Sunnyview Homes Ltd | Real estate | 2017 |
| Sunrise Balaji Foods Ltd | Hospitality | 2024 |
| Sunrise Businesses Ltd. | Administrative & support | 2014 |
| Sunrise Glazing International Limited | Manufacturing | 2023 |
| Sunrise IT Consulting Ltd | Information & communication | 2007 |
| Sunrise Property and Estates Ltd | Real estate | 2021 |
| Sunrise Windows and Bifolding Ltd | Manufacturing | 2022 |
| SUNRISE4SAP Limited | Information & communication | 2023 |
| Sunshine Acquisition Limited | Extraterritorial | 2005 |
| Sunshine Explorers C.I.C. | Education | 2025 |
| Sunshine Foods (UK) Limited | Wholesale & retail | 2005 |
| Sunshine Holdings 2 Limited | Extraterritorial | 2005 |
| Sunshine Holdings 3 Limited | Professional & scientific | 2005 |
| Sunshine Kitchen and Events Services Limited | Hospitality | 2025 |
| Sunshine Logistics Ltd | Administrative & support | 2019 |
| Sunshine Onward Travel Ltd | Transport & logistics | 2023 |
| Sunshine Supported Living Limited | Health & social care | 2026 |
| Sunsin Limited | Wholesale & retail | 2024 |
| Sunszaf Estates Ltd | Real estate | 2019 |
| Suntech Consultancy Ltd | Information & communication | 2022 |
| Suntech Repairs Ltd | Information & communication | 2018 |
| Sunwing Technology Ltd | Information & communication | 2022 |
| Supa Consulting Ltd | Information & communication | 2011 |
| Supcircle Ltd | Wholesale & retail | 2024 |
| Supd Ltd | Information & communication | 2026 |
| Super Car Valeting Limited | Other services | 2016 |
| Super Consultancy (UK) Ltd | Health & social care | 2018 |
| Super Electric Station Ltd | Energy | 2008 |
| Super Mario Group Ltd | Transport & logistics | 2026 |
| Super Miss UK Ltd | Wholesale & retail | 2018 |
| Super Removals Limited | Transport & logistics | 2025 |
| Super Speed Club Limited | Wholesale & retail | 2025 |
| Super Speed Sports Cars Ltd | Wholesale & retail | 2017 |
| Super Wheels MAX Limited | Wholesale & retail | 2024 |
| Superb Chauffeurs Ltd | Transport & logistics | 2024 |
| Superb Walls Ltd | Wholesale & retail | 2025 |
| Superelves Ltd | Wholesale & retail | 2020 |
| Superfast Transport Ltd | Transport & logistics | 2023 |
| Superflow Management Limited | Hospitality | 2003 |
| Superiors Logistics Ltd | Transport & logistics | 2026 |
| Superquick Ltd | Transport & logistics | 2025 |
| Supers Service Ltd | Wholesale & retail | 2017 |
| Supersonic Technologies Ltd | Wholesale & retail | 2023 |
| Superspeed Services Ltd | Transport & logistics | 2024 |
| Suporter Stelist 1947 Ltd | Manufacturing | 2022 |
| Supplicom Limited | Wholesale & retail | 2026 |
| Supply Hive Berkshire Ltd | Administrative & support | 2022 |
| Supply Hive South West Ltd | Administrative & support | 2025 |
| Support Anyware Limited | Information & communication | 2010 |
| Supporting Aspirations Ltd | Administrative & support | 2022 |
| Supporting Sunni Scholars | Education | 2021 |
| Supra BIO Fuels Ltd | Wholesale & retail | 2018 |
| Supra Holding Ltd | Real estate | 2019 |
| Supra Ventures Ltd | Administrative & support | 2025 |
| Suprada Technologies Ltd | Information & communication | 2010 |
| Supreme Autotrader Ltd | Wholesale & retail | 2025 |
| Supreme Constructors Limited | Construction | 2025 |
| Supreme Studio Ltd | Information & communication | 2021 |
| Supreno Healthcare Service Limited | Public administration | 2025 |
| Surabhi Systems Limited | Information & communication | 2019 |
| Surbiton Developments Ltd | Real estate | 2022 |
| Sure Fleet Services Limited | Other services | 2018 |
| Sure on Property Services Ltd. | Real estate | 2025 |
| Sure on Safety Ltd | Wholesale & retail | 2025 |
| Sure Resourcing Limited | Administrative & support | 2017 |
| SURE4CARE Ltd | Health & social care | 2026 |
| Surecare Slough Ltd | Health & social care | 2008 |
| Surelines Traders Ltd | Wholesale & retail | 2023 |
| Surety Technology Solutions Ltd | Information & communication | 2022 |
| Surge Projects Ltd | Information & communication | 2015 |
| Surgical Aesthetics Limited | Professional & scientific | 1999 |
| Surgical Solution SS Limited | Manufacturing | 2017 |
| Surjit SINGH4 Ltd | Construction | 2025 |
| Surplus Global Ltd | Wholesale & retail | 2025 |
| Surti Orphanage Limited | Other services | 2007 |
| Survey Solutions Ltd. | Professional & scientific | 1995 |
| Survival Consultancy & Community Development Services Ltd | Professional & scientific | 2026 |
| Surya Academy Limited | Education | 2021 |