| R Bean Plumbing and Heating Limited | Construction | 2022 |
| R D Jones Property Ltd | Real estate | 2024 |
| R D Lane & Sons Limited | Construction | 2023 |
| R K Bragg Brickwork Limited | Construction | 2003 |
| R Smith Electrical Services Limited | Construction | 2020 |
| R W Spencer & SON Limited | Construction | 2004 |
| R&L Mulligan Ltd | Extraterritorial | 2013 |
| R.A.M Fleet Solutions Ltd | Other services | 2017 |
| R.Oakes Limited | Real estate | 2024 |
| Raceology Ltd | Arts & recreation | 2018 |
| Radiance Revival Aesthetics Clinic Ltd | Other services | 2024 |
| Rail OP OHL Limited | Administrative & support | 2009 |
| Railworksldn Ltd | Construction | 2025 |
| Rain Style Limited | Wholesale & retail | 2018 |
| Rainmaker Enterprises LLP | | 2010 |
| Ramoanie Limited | Real estate | 2016 |
| Ramsholt Limited | Real estate | 2026 |
| Rathmore Planning Solutions Ltd | Construction | 2022 |
| Ravtrans Ltd | Transport & logistics | 2018 |
| RAW Concrete Products Limited | Manufacturing | 2025 |
| RAW Materials SX Ltd | Wholesale & retail | 2019 |
| Rawden Enterprise Park Limited | Financial services | 2025 |
| Rayne Riding Centre Ltd | Arts & recreation | 2020 |
| RB Land Promotion Limited | Construction | 2020 |
| Rclb Ltd | Professional & scientific | 2018 |
| RDM Contracting Limited | Manufacturing | 2025 |
| RE Group Accountants Limited | Professional & scientific | 2019 |
| Real Finery Limited | Wholesale & retail | 2018 |
| Real Travel Assistance Limited | Financial services | 2012 |
| Rebel Media Group Ltd | Financial services | 2025 |
| Reboot Limited | Professional & scientific | 2013 |
| Recap Golf Limited | Information & communication | 2025 |
| Recap Limited | Education | 2023 |
| Red Bear Property Ltd | Real estate | 2026 |
| Red Dragon Miniatures Ltd | Professional & scientific | 2015 |
| Red FOX Real Estate Limited | Professional & scientific | 2014 |
| Red Sofa Productions Limited | Information & communication | 2010 |
| Red Woodpecker Developments Ltd | Construction | 2018 |
| Rees Bees Ltd. | Wholesale & retail | 2019 |
| Regiis Holdings Limited | Construction | 2023 |
| Regiis Homes Limited | Real estate | 2021 |
| Regiis Properties Limited | Real estate | 2024 |
| Remax Appleby Limited | Hospitality | 2018 |
| Rennella Limited | Real estate | 2021 |
| Retail Specialists Ltd | Professional & scientific | 2018 |
| Revilo Shipping Limited | Transport & logistics | 1990 |
| RF Engineering Essex Ltd | Information & communication | 2010 |
| RH Construction Ltd | Construction | 2017 |
| Rhonu Delta Ltd | Arts & recreation | 2020 |
| Rialto Metals Limited | Administrative & support | 2013 |
| Richard Edwards Consultancy Limited | Professional & scientific | 2020 |
| Richard Owers Limited | Professional & scientific | 2012 |
| Ridgewell Garden Design & Construction Limited | Construction | 2013 |
| Right Click Digital Solutions Ltd | Information & communication | 2017 |
| Ringers Road Properties Ltd | Administrative & support | 2016 |
| Ripper Farms Ltd | Energy | 2015 |
| Rise Rehab Ltd | Health & social care | 2023 |
| RJS Kitchens Limited | Construction | 2014 |
| RJW Assets Limited | Financial services | 2022 |
| RLH Plumbing Services Limited | Construction | 2016 |
| RMF Design Ltd | Information & communication | 2024 |
| Robert Wheeler Developments Ltd | Construction | 2026 |
| Rockwood Renovations Limited | Manufacturing | 2021 |
| Roedean Heights Limited | Households | 2004 |
| Rokel Limited | Construction | 2024 |
| Rokshore Limited | Wholesale & retail | 2025 |
| Romiria Ltd | Real estate | 2023 |
| Ronco Cleaning Services Limited | Administrative & support | 2016 |
| Roofing Kings Ltd | Construction | 2025 |
| Rooster Building Services Limited | Construction | 2013 |
| Rope Tech Social Club Ltd | Other services | 2025 |
| Rosetree Management Limited | Real estate | 1990 |
| Roughan Investments Limited | Real estate | 2021 |
| Rowan Developers Limited | Real estate | 2016 |
| Roxsearo Ltd | Transport & logistics | 2024 |
| RPG Sprayfoam Removal Limited | Construction | 2024 |
| RPM Motorsport Consulting Ltd | Arts & recreation | 2018 |
| RRM Warehousing Limited | Transport & logistics | 2022 |
| RTF Commercial Limited | Manufacturing | 2011 |
| Runchman's Renovations Limited | Construction | 2011 |
| Rycio Trans Ltd | Transport & logistics | 2018 |
| S & P Financial Consultancy Ltd | Professional & scientific | 2007 |
| S & S Carpentry (Essex) Ltd | Construction | 2016 |
| S Amerio Contracts Limited | Construction | 2003 |
| S Fenner Property's Ltd | Households | 2021 |
| S Howard Construction Ltd | Construction | 2023 |
| S I Enterprises Ltd | Real estate | 2018 |
| S K Plumbing Services Limited | Construction | 2015 |
| S M D Brickwork Contracts Ltd | Construction | 1999 |
| S&G's Bar Ltd | Hospitality | 2018 |
| S.Y.R. Forwarders Ltd | Transport & logistics | 2014 |
| Sadlerstaxis Group Ltd | Transport & logistics | 2024 |
| Saha & Sons Retails Ltd | Wholesale & retail | 2024 |
| Saikarcho Ltd | Administrative & support | 2023 |
| Sailorboy Fish and Chip Shop Limited | Hospitality | 2024 |
| Sales-Flight Limited | Information & communication | 2020 |
| Samantha Hardingham Limited | Other services | 2021 |
| Samirz UK Limited | Wholesale & retail | 2024 |
| Sandarac Ltd | Wholesale & retail | 2007 |
| Sandy Feet Lettings Limited | Real estate | 2025 |