| Stepping Stones Pre-School and Kids Club Limited | Education | 2012 |
| Stepping Stones Retail Ltd | Wholesale & retail | 2024 |
| Sterling (Midlands) Limited | Financial services | 2026 |
| Sterling Properties Plus Limited | Real estate | 2025 |
| Stev-Ell UK Ltd | Information & communication | 2022 |
| Steve Iles Holdings Limited | Construction | 2022 |
| Steve Rowntree Haulage Limited | Professional & scientific | 2003 |
| Steve Smith Surfacing Limited | Construction | 2015 |
| Stevens Home Improvements Ltd | Construction | 2023 |
| Stewart Fletcher and Barrett Limited | Professional & scientific | 2001 |
| Sthavir Engineering Solutions Limited | Information & communication | 2023 |
| Still Point Consulting Ltd | Professional & scientific | 2017 |
| Stillock Technologies Ltd | Wholesale & retail | 2017 |
| Stockingford Holdings Ltd | Hospitality | 2018 |
| Stoke Golding Convenience Store Ltd | Wholesale & retail | 2024 |
| Stonebrook Cleaning Co Ltd | Administrative & support | 2025 |
| Stonehouse I.M.S. Limited | Information & communication | 2012 |
| Storethelothinckley Ltd | Transport & logistics | 2023 |
| STP Design Services Limited | Information & communication | 2026 |
| STR Creativ Limited | Professional & scientific | 2026 |
| Strategie.Js. Ltd | Professional & scientific | 2018 |
| Streetworks Software Limited | Information & communication | 2024 |
| Stretch Tent Productions Ltd | Hospitality | 2019 |
| Stretton Court Management (Baskerville) Limited | Hospitality | 1978 |
| Stretton Group Ltd | Real estate | 2017 |
| Strive Psychological Services Limited | Health & social care | 2023 |
| Strobl Holding Limited | Financial services | 2014 |
| Strong ARM Electrical Ltd | Wholesale & retail | 2020 |
| Structured Staff Ltd | Construction | 2025 |
| Strutz Transport Limited | Transport & logistics | 2014 |
| STS Stand Tall Scaffolding Ltd | Construction | 2021 |
| Stuart Christopher Ltd | Real estate | 2025 |
| Stuart Mcmurchy & Sons Limited | Transport & logistics | 2006 |
| Studio 24 Marketing Ltd | Manufacturing | 2023 |
| Studio Tinsmith Ltd | Construction | 2017 |
| Stylemint Limited | Transport & logistics | 2024 |
| Styleocean Ltd | Wholesale & retail | 2021 |
| Stylist QUE Ltd | Other services | 2026 |
| SUB Mapping Limited | Professional & scientific | 2023 |
| Succinct Touch Services Ltd | Construction | 2024 |
| Such Comfort Ltd | Wholesale & retail | 2023 |
| Sugandha Ltd | Transport & logistics | 2025 |
| Suit the Occasion Menswear Limited | Wholesale & retail | 2017 |
| Suit the Occasion of Nuneaton Limited | Wholesale & retail | 2018 |
| Sukapa Ltd | Real estate | 2020 |
| Sultan House Management Company Limited | Households | 2003 |
| Sunergy Renewables Limited | Construction | 2022 |
| Sunny D'S Ltd | Transport & logistics | 2016 |
| Sunny Nunny Limited | Manufacturing | 2022 |
| Sunrise Community Solutions CIC | Wholesale & retail | 2012 |
| Sunshine M Limited | Health & social care | 2021 |
| Super Market KD Ltd | Wholesale & retail | 2026 |
| Supertransportltd@Gmail.Com Limited | Transport & logistics | 2014 |
| Surefix Carpentry Limited | Manufacturing | 2018 |
| Surefix Landscaping & Fencing Ltd | Administrative & support | 2025 |
| Surestay Holdings Ltd | Financial services | 2026 |
| Surestay Housing Ltd | Real estate | 2020 |
| Surestay Residential Ltd | Real estate | 2026 |
| Suretag Ltd | Information & communication | 2022 |
| Surmo Limited | Real estate | 2019 |
| SVA Group Midlands Limited | Manufacturing | 2018 |
| SW Building and Construction Services Ltd | Construction | 2019 |
| Swan Global Ltd | Wholesale & retail | 2016 |
| Swati News Ltd | Wholesale & retail | 2016 |
| Swaztech Sports Equipment and Goalkeeping Limited | Wholesale & retail | 2023 |
| Swbc Consultancy Ltd | Professional & scientific | 2026 |
| Sweet Accounting Ltd | Professional & scientific | 2018 |
| Swift Learner Driving School Ltd | Education | 2021 |
| Swift Trading Solutions Ltd | Administrative & support | 2024 |
| Swiftly Cart Ltd | Wholesale & retail | 2025 |
| Swinfield Relocation Ltd | Professional & scientific | 2023 |
| Swinnerton Trust Limited | Health & social care | 2013 |
| Swizu Care Limited | Health & social care | 2023 |
| SY Accounting Ltd | Professional & scientific | 2017 |
| Sycamore Farm (Barton in the Beans) Management Company Limited | Households | 2014 |
| Sycamore Installations Limited | Other services | 2013 |
| Sykes Metals Limited | Water & waste | 2011 |
| Sylva Deer and Veterinary Services Limited | Professional & scientific | 2023 |
| Symbiosis Imedia Systems Limited | Wholesale & retail | 1990 |
| Symbiosis Limited | Professional & scientific | 2002 |
| Symmetry Flooring Ltd | Construction | 2023 |
| Synergy & KIN Collective Ltd | Administrative & support | 2025 |
| SYS Property and Assets Management Ltd | Real estate | 2023 |
| Systems Savage Ltd | Professional & scientific | 2018 |
| Systran Enterprises Limited | Administrative & support | 1999 |
| Sysupplying Ltd | Wholesale & retail | 2025 |
| SZ Global Services Ltd | Real estate | 2025 |
| T & G Services Leicestershire Limited | Construction | 2003 |
| T D T Trans Ltd | Transport & logistics | 2020 |
| T G U ENG Limited | Professional & scientific | 2016 |
| T J Midland Property Limited | Households | 2026 |
| T P J Systems Limited | Construction | 1999 |
| T Takeaway Limited | Hospitality | 2023 |
| T&J Hospitality Limited | Hospitality | 2024 |
| T-Global Technology (Europe & North America) Limited | Wholesale & retail | 2011 |
| T. Glass Services Ltd | Manufacturing | 2020 |
| T.R. Ellis & Company Limited | Construction | 1960 |
| T.W.Hammond Ltd | Construction | 2025 |
| T5DANY Limited | Transport & logistics | 2022 |
| Tackleshack Nuneaton Ltd | Wholesale & retail | 2019 |