| Station Yard Containers Limited | Administrative & support | 2026 |
| Stay in Lincoln Limited | Real estate | 2021 |
| Stay on the Road Ltd | Real estate | 2021 |
| Staywell Mobility Ltd | Wholesale & retail | 2026 |
| STE Aerotech Ltd | Manufacturing | 2017 |
| Stedav Limited | Health & social care | 2019 |
| Steel Mile Garage Ltd | Wholesale & retail | 2025 |
| Steel Mile Midco Ltd | Professional & scientific | 2025 |
| Steel-Tech (Mids) Ltd | Construction | 2020 |
| Steelcoat Paint Services Ltd | Construction | 2024 |
| Steep Hill Properties Ltd | Hospitality | 2021 |
| Steep Hill Property Investments Limited | Real estate | 2022 |
| Stefan Niculescu Ltd | Health & social care | 2012 |
| Stefjames Transport Limited | Transport & logistics | 2020 |
| Stellar Divers Trips and Travel Limited | Administrative & support | 2025 |
| Stellar Fire Consultants Ltd | Professional & scientific | 2024 |
| Stem Design Group Ltd | Professional & scientific | 2025 |
| Stem Lincoln Ltd | Construction | 2025 |
| Sten Property Ltd | Administrative & support | 2015 |
| Step in Property Management Ltd | Real estate | 2024 |
| Stepbuystep Ltd | Professional & scientific | 2025 |
| Stephanie Douglas Education Consultancy Ltd | Education | 2014 |
| Stephen Britton Ltd | Administrative & support | 2013 |
| Stephen Burnley IT Test Consultancy Ltd | Information & communication | 2025 |
| Stephen D Francis Limited | Construction | 2023 |
| Stephen J Mcculley Limited | Health & social care | 2009 |
| Stephen Morris Spine Ltd | Health & social care | 2017 |
| Stephenson Contracts Ltd | Mining & quarrying | 2025 |
| Sterling Cotton Limited | Wholesale & retail | 2016 |
| Stet Potato Ltd | Wholesale & retail | 2016 |
| Steve Andrew Car Sales Ltd | Wholesale & retail | 2023 |
| Steve Campion Limited | Agriculture & fishing | 2009 |
| Steve Downey Building Services Ltd | Construction | 2010 |
| Steve Gilman Design Limited | Professional & scientific | 2005 |
| Steve Hepple Orthopaedics Limited | Health & social care | 2006 |
| Steve Houltby Ltd | Health & social care | 2020 |
| Steve Mcsmailes Photography Ltd | Professional & scientific | 2024 |
| Steve Parkes Transport Ltd | | 2013 |
| Steve Willshaw Consulting Limited | Education | 2021 |
| Steve's Removals Limited | Transport & logistics | 2021 |
| Steven Bullivant Auto Electrical Ltd | Professional & scientific | 2017 |
| Steven Civils Limited | Professional & scientific | 2025 |
| Steven Dowse Ltd | Professional & scientific | 2025 |
| Steven Dunn Architects Limited | Professional & scientific | 2003 |
| Steven O'Donnell Ltd | Construction | 2023 |
| Steven Sykes Ltd | Transport & logistics | 2025 |
| Stevens Green Media Ltd | Information & communication | 2011 |
| Stevenson Logistics Ltd | Transport & logistics | 2024 |
| Steves Exports Ltd | Transport & logistics | 2024 |
| Stewarts Hospitality Ltd | Hospitality | 2025 |
| Stewarts Plumbing Services Ltd | Other services | 2002 |
| Stewarts Rentals & Renovations Ltd | Real estate | 2017 |
| Steòrn Limited | Professional & scientific | 2025 |
| Stf-Tech Services Limited | Professional & scientific | 2021 |
| Stick 2 Products Ltd | Administrative & support | 2014 |
| Stirlin Developments Limited | Construction | 2007 |
| Stirlin Group Limited | Real estate | 2016 |
| Stirlin Ingham LLP | | 2023 |
| Stirlin Management Limited | Real estate | 2010 |
| Stirlin Place Management (Foxby Lane) Ltd | Real estate | 2019 |
| Stirlin Plant Limited | Wholesale & retail | 2019 |
| Stirlin Sadler Road SPV LLP | | 2011 |
| STN Holdings (Lincoln) Limited | Construction | 2025 |
| Stokesgranite Limited | Wholesale & retail | 2020 |
| Stone Arms Limited | Hospitality | 2024 |
| Stone House Accounting Limited | Professional & scientific | 2002 |
| Stone House Property Management Ltd | Real estate | 2002 |
| Stonebay Homes Limited | Hospitality | 2002 |
| Stonebow Construction Limited | Construction | 2026 |
| Stonebow Property Compliance Ltd | Public administration | 2026 |
| Stonebow Wholesale Company Limited | Wholesale & retail | 1960 |
| Stonecrest Property Group Ltd | Construction | 2026 |
| Stonecroft Limited | Wholesale & retail | 2003 |
| Stonefield Trading Ltd | Wholesale & retail | 2026 |
| Stoneset Resin Ltd | Construction | 2014 |
| Stoneview Developments Limited | Construction | 2020 |
| Stonewell Homes Limited | Construction | 1998 |
| Stop a Thief Security Ltd | Extraterritorial | 2013 |
| Stopcox GAS, Heating and Plumbing Ltd | Construction | 2010 |
| Stored Crop Conservation (1971) Limited | Professional & scientific | 1994 |
| Stored Crop Conservation Limited | Agriculture & fishing | 1985 |
| Stored Energy Ltd | Professional & scientific | 2021 |
| Stories HQ Ltd | Administrative & support | 2025 |
| Stormflow Solutions Ltd | Professional & scientific | 2023 |
| Stow Dental Consulting Ltd | Professional & scientific | 2015 |
| Stow Farms Limited | Agriculture & fishing | 2012 |
| Straffan Holdings Limited | Financial services | 2022 |
| Straight Circle Solutions Limited | Professional & scientific | 2023 |
| Strait and Narrow Ltd | Hospitality | 2012 |
| Strait Industries Ltd | Hospitality | 2017 |
| Strand 85 Ltd | Financial services | 2019 |
| Stras Maintenance Ltd | Administrative & support | 2026 |
| Strategic Chain Networks Limited | Professional & scientific | 2026 |
| Strategic Development and Planning Limited | Construction | 2010 |
| Strategies UK Ltd | Wholesale & retail | 2026 |
| Strategy Solutions Ltd | Professional & scientific | 2026 |
| Strategy Workout Limited | Professional & scientific | 2024 |
| Stratum Park Management Company Limited | Real estate | 2025 |
| Streetly Hall AD Capital Ltd | Financial services | 2026 |
| Streetly Hall AD Land Ltd | Real estate | 2026 |