| Rivenhall Property Holdings Limited | Real estate | 2006 |
| RJC Power Services Ltd | Construction | 2023 |
| Rlowe Limited | Information & communication | 2026 |
| RM Roofing Solutions Ltd | Construction | 2024 |
| RN Dental Ltd | Health & social care | 2020 |
| RO Gate Protect Ltd | Construction | 2021 |
| Robinsons Consultancy Limited | Professional & scientific | 2019 |
| Robotswillkillyou Ltd | Information & communication | 2024 |
| Roder Atlantic Limited | Construction | 1994 |
| Roder HTS (UK) Limited | Construction | 2003 |
| Roder HTS Hocker Ltd | Construction | 2019 |
| Roder HTS KG (UK) Limited | Wholesale & retail | 2002 |
| Roder HTS Limited | Construction | 2003 |
| Roder UK Ltd. | Wholesale & retail | 1987 |
| Rose 2007 Ltd | Other services | 2014 |
| Roxana G Care Ltd | Health & social care | 2021 |
| S.M. GUY Limited | Agriculture & fishing | 1973 |
| S.Palmer Plumbing and Heating Ltd | Construction | 2022 |
| Sajan Properties Ltd | Real estate | 2026 |
| Savage Developments Limited | Construction | 2015 |
| School for Professional Dog Listeners LLP | | 2024 |
| Schoollinx Ltd | Information & communication | 2026 |
| Screencentral Ltd | Extraterritorial | 2023 |
| Sensium Wealth Management Ltd | Professional & scientific | 2016 |
| Seymour Design Limited | Professional & scientific | 2002 |
| Shifabazaar Ltd | Wholesale & retail | 2025 |
| Sigma Medical Holdings Limited | Professional & scientific | 2025 |
| Simet (Chatteris) Ltd | Administrative & support | 2020 |
| Sites by TOM Ltd | Professional & scientific | 2024 |
| Slack & Parr Group Limited | Manufacturing | 2008 |
| Slawek.P Ltd | Wholesale & retail | 2020 |
| Smart Close (Manea) Management Company Limited | Real estate | 2020 |
| Smashalicious Ltd | Hospitality | 2025 |
| Sneaky Spatula Ltd | Information & communication | 2011 |
| Society of Chinese Medical Practitioners UK | Education | 2020 |
| Soilpoint Humic Co., Ltd. | Agriculture & fishing | 2022 |
| Spectrum Educational Advice and Support Limited | Education | 2014 |
| Spencer Computing Limited | Information & communication | 2022 |
| Sport and Activity Services Ltd | Other services | 2024 |
| Spriggs Property Developments Limited | Real estate | 2021 |
| Stainless Metalcraft (Chatteris) Limited | Manufacturing | 1990 |
| Stemar Investments Limited | Administrative & support | 2024 |
| Steve Peck & SON Limited | Construction | 2004 |
| Stumps Holding Ltd | Financial services | 2023 |
| Styalways Limited | Agriculture & fishing | 2015 |
| Super Wingz Ltd | Hospitality | 2023 |
| Supply and Planning Solutions Limited | Professional & scientific | 2026 |
| Sycamore Crescent (Chatteris) Management Company Limited | Households | 2018 |
| T&T Auto Repairs Ltd | Wholesale & retail | 2019 |
| T.C.I Transport Ltd | Transport & logistics | 2025 |
| T.J. Barrett & Sons Transport Ltd | Transport & logistics | 2022 |
| Takenote Reviews Ltd | Extraterritorial | 2019 |
| Tamanna Caterers Ltd | Hospitality | 2025 |
| Terraford Ltd | Information & communication | 2025 |
| Terry Calvert Limited | Construction | 2005 |
| THE Active Learning Trust Linc | Education | 2019 |
| THE Balance Procedure Limited | Education | 2025 |
| THE Chicken Factory Limited | Information & communication | 2005 |
| THE Creative Gifter Limited | Wholesale & retail | 2018 |
| THE Design Partnership (ELY) Limited | Professional & scientific | 2002 |
| THE Face LAB Clinic Ltd | Other services | 2024 |
| THE Savvy Trade Limited | Wholesale & retail | 2025 |
| THE Vintage Teacup Hire Company Limited | Administrative & support | 2011 |
| THE Willows Day Nursery (Chatteris) Ltd | Education | 2013 |
| THE Willows Westwood (March) Ltd | Health & social care | 2024 |
| Thetherap.T Ltd | Education | 2025 |
| This Colourful Nest Ltd | Professional & scientific | 2021 |
| TNT Competitions Limited | Wholesale & retail | 2025 |
| Tomcat Wholesale Ltd | Wholesale & retail | 2019 |
| Top Stingrays UK Ltd | Wholesale & retail | 2022 |
| TP24 Limited | Wholesale & retail | 2002 |
| Trafficant Ltd | Wholesale & retail | 2023 |
| Train Yard Chatteris Limited | Arts & recreation | 2026 |
| Travelsights Coaches Ltd | Transport & logistics | 2025 |
| Travelsights Limited | Administrative & support | 2007 |
| Triple TAP Limited | Information & communication | 2020 |
| Trucker TIM Ltd | Transport & logistics | 2022 |
| Trucker TIM Merchandise Ltd | Wholesale & retail | 2022 |
| Tuppence & George Ltd | Wholesale & retail | 2024 |
| V12 Carpentry Contractors Ltd | Construction | 2018 |
| Vanguard Fire Consultancy Ltd | Professional & scientific | 2021 |
| Vfex (Group) Ltd | Extraterritorial | 2025 |
| Vfex Logistics Ltd | Transport & logistics | 2025 |
| Vfex Ltd | Extraterritorial | 2025 |
| Viscount Property Services Ltd | Administrative & support | 2026 |
| Vita Nova Solutions Ltd | Professional & scientific | 2019 |
| Warby Investments (Chatteris) Ltd | Real estate | 2023 |
| Warne Interior Design Limited | Professional & scientific | 2025 |
| Welly Wearers Ltd. | Wholesale & retail | 2022 |
| West Park Street Chippie Ltd | Hospitality | 2018 |
| William Oak Diagnostics Limited | Professional & scientific | 2023 |
| Willow Automotive Limited | Wholesale & retail | 2011 |
| Windmill Mews (Chatteris) Limited | Households | 2007 |
| WM Motoring Solutions Ltd | Transport & logistics | 2019 |
| Y-Us Lettings & Maintenance Ltd | Real estate | 2023 |
| Youths of Fenland C.I.C. | Other services | 2019 |
| Zashis Ltd | Construction | 2018 |