| Pufulina Trans Ltd | Transport & logistics | 2026 |
| R&R 1 Limited | Hospitality | 2023 |
| Rado 68 Ltd | Transport & logistics | 2014 |
| Rays Trans Ltd | Transport & logistics | 2014 |
| Red Rooster Ltd | Construction | 2025 |
| Reenos Cycling Ltd | Wholesale & retail | 2021 |
| Renbel Limited | Real estate | 2015 |
| Renco Nets Limited | Wholesale & retail | 1997 |
| RF Cargo Limited | Transport & logistics | 2026 |
| Rgsp Ltd | Wholesale & retail | 2014 |
| RJR Transport Limited | Transport & logistics | 2019 |
| Roschak Ltd | Extraterritorial | 2023 |
| Rosen Transport Limited | Transport & logistics | 2019 |
| Rothenburg Associates Limited | Professional & scientific | 2018 |
| Roxton Building Services Limited | Construction | 1977 |
| Roxton Occupational Health Limited | Health & social care | 2015 |
| Rukenrodi Ltd | Other services | 2019 |
| Rusokastro Ltd | Transport & logistics | 2021 |
| RW Business Solutions Ltd | Transport & logistics | 2016 |
| S H Adhesive Solutions Ltd | Professional & scientific | 2019 |
| S.A.R. Auto Limited | Wholesale & retail | 2016 |
| S.A.R. Corporate Limited | Financial services | 2020 |
| S.A.R. Group Management Limited | Financial services | 2021 |
| S.A.R. Metals Limited | Water & waste | 2010 |
| Saratrans Ltd | Transport & logistics | 2026 |
| Scaffold Supplies Direct Limited | Extraterritorial | 2023 |
| Scaffold Supplies Limited | Extraterritorial | 2007 |
| Scaffolding Supplies Direct Limited | Extraterritorial | 2023 |
| Scaffolding Supplies Limited | Administrative & support | 1999 |
| Scrummy Yummy Ltd | Hospitality | 2025 |
| Serius Developments Limited | Other services | 2015 |
| Sevda Delivery Service Ltd | Transport & logistics | 2017 |
| Severn Steel Shipping Limited | Transport & logistics | 2025 |
| Shaman 69 Ltd | Transport & logistics | 2014 |
| Shans Transport Ltd | Transport & logistics | 2016 |
| Shenstone Solutions Limited | Professional & scientific | 2021 |
| Sibeco Ltd | Transport & logistics | 2019 |
| Silverwright Investment Ltd | Extraterritorial | 2023 |
| Silviu Stamate Trans Ltd | Transport & logistics | 2024 |
| Sintra (U.K.) Limited | Transport & logistics | 1983 |
| Smile Signs Limited | Manufacturing | 2020 |
| Sof&J Ltd | Transport & logistics | 2014 |
| Solvio Systems Ltd | Information & communication | 2026 |
| Sophiesmelts Ltd | Wholesale & retail | 2025 |
| Soso Transport Ltd | Transport & logistics | 2019 |
| SP Protrans Ltd | Transport & logistics | 2026 |
| Speciality Smoked Food Limited | Hospitality | 2023 |
| Spury Trans Ltd | Transport & logistics | 2026 |
| Stardelta Power & Control Engineers Limited | Construction | 2015 |
| Stark Electrical Solutions Ltd | Construction | 2010 |
| Stdg Limited | Transport & logistics | 2022 |
| Stelko 94 Ltd | Transport & logistics | 2018 |
| Stempunx International CIC | Wholesale & retail | 2026 |
| Stempunx Lincs CIC | Education | 2021 |
| Stenik Limited | Transport & logistics | 2019 |
| Steve Potter Panel Beater Ltd | Wholesale & retail | 2026 |
| Storm Solution 2019 Ltd | Transport & logistics | 2019 |
| Stuffed N Stacked Ltd | Hospitality | 2024 |
| Superstar Pets Productions Ltd | Arts & recreation | 2017 |
| Swart Plaster Mouldings Ltd | Construction | 2021 |
| T&S 19 Ltd | Construction | 2019 |
| Tallon Motocross Ltd | Wholesale & retail | 2022 |
| Tasty Bite Immingham Ltd | Hospitality | 2026 |
| Taylor Made Properties and Lets Limited | Households | 2026 |
| TC Haulage (Lincolnshire) Ltd | Transport & logistics | 2022 |
| Team Teacher Ltd | Professional & scientific | 2024 |
| Testex NDT Limited | Professional & scientific | 1999 |
| THE Hunger Hatch Ltd | Hospitality | 2018 |
| THE Immingham Community Project Limited | Arts & recreation | 2012 |
| THE Second Drop Ltd | Wholesale & retail | 2026 |
| Tiny Terrariums Ltd | Agriculture & fishing | 2025 |
| TOM Grantham Equine Dental Services Ltd | Other services | 2022 |
| Tonjo Limited | Transport & logistics | 1999 |
| Tony-Hk Ltd | Transport & logistics | 2016 |
| Top Marks Joinery & Building Services Ltd | Construction | 2022 |
| Top Road Haulage Limited | Transport & logistics | 2002 |
| Trademark Property Ltd | Real estate | 2015 |
| Trailertrans (Europe) Limited | Transport & logistics | 1985 |
| Transeg Ltd | Transport & logistics | 2016 |
| Trevs Diner Limited | Hospitality | 2019 |
| Trusted Touch Aesthetics Ltd | Health & social care | 2022 |
| Trutrans Ltd | Transport & logistics | 2023 |
| TSV77 Ltd | Transport & logistics | 2025 |
| Ulvacharu Telugu Restaurant Limited | Hospitality | 2025 |
| V Auto Ltd | Wholesale & retail | 2018 |
| V3NKO75 Ltd | Transport & logistics | 2026 |
| Valaten Ltd | Transport & logistics | 2019 |
| Valentin Grigorescu Ltd | Transport & logistics | 2020 |
| Victoria OIL Company Limited | Professional & scientific | 2025 |
| VIL 77 Ltd | Transport & logistics | 2018 |
| Vitalie Haulage Ltd | Transport & logistics | 2019 |
| VMZ Trans Ltd | Transport & logistics | 2015 |
| Voltino Ltd | Wholesale & retail | 2025 |
| VR Trans Ltd | Transport & logistics | 2008 |
| Waste Commodity Trading Limited | Wholesale & retail | 2024 |
| Waterworks Stores Ltd | Wholesale & retail | 2017 |
| Westdijk Transport UK Limited | Transport & logistics | 2016 |
| Westy's Wheels Limited | Wholesale & retail | 2009 |
| Whitleys Agriculture and Livestock Services Ltd | Agriculture & fishing | 2024 |
| Widows SON Tattooing Ltd | Other services | 2025 |