| RMG 03 Limited | Other services | 2023 |
| RMN Trading Limited | Other services | 2018 |
| RMT Civil Works Ltd | Construction | 2025 |
| RNA Global Recruit Limited | Professional & scientific | 2025 |
| Rniels Ltd | Hospitality | 2025 |
| Roadshield Ltd | Administrative & support | 2024 |
| Robair Services Ltd | Construction | 2017 |
| Robert & Sons Transport Ltd | Wholesale & retail | 2013 |
| Robert Smolen Ltd | Other services | 2018 |
| Roberts Racking Ltd | Construction | 2022 |
| Robicom Ltd | Professional & scientific | 2022 |
| Robmar Logistics Ltd | Transport & logistics | 2019 |
| ROBOT2COBOT Ltd | Professional & scientific | 2019 |
| Rodec Limited | Construction | 2008 |
| Rojac Urethane Limited | Manufacturing | 2007 |
| Romderful Ltd | Information & communication | 2018 |
| Romsley & Hunnington Sports Club Ltd | Hospitality | 2018 |
| Romsley Bars Ltd | Hospitality | 2019 |
| RON Jeavons (Steels) Limited | Manufacturing | 1971 |
| Roof-Fix West Midlands LLP | | 2016 |
| Rose Plastics Plumbing and Bathrooms Ltd | Wholesale & retail | 2020 |
| Rosemore Real Estate Limited | Real estate | 2025 |
| Rosewood Renovations Ltd | Construction | 2026 |
| Ross Baker Limited | Transport & logistics | 2016 |
| Rotherham Flooring Ltd | Wholesale & retail | 2025 |
| Rouxx Projects Ltd | Construction | 2025 |
| RP Moran Crane Repairs Ltd | Manufacturing | 2009 |
| RPK Flatpack Services Ltd | Transport & logistics | 2013 |
| RPM Loadlift Limited | Manufacturing | 2020 |
| Rpsi Services Limited | Administrative & support | 2016 |
| RS Gill Logistics Ltd | Transport & logistics | 2024 |
| Rskn Limited | Health & social care | 2020 |
| Rspro Build Ltd | Construction | 2026 |
| RSR Workshop Ltd | Wholesale & retail | 2021 |
| RSS Trading Limited | Construction | 2025 |
| RST Estates Ltd | Real estate | 2024 |
| RTB Scaffolding Limited | Construction | 2026 |
| Rtsa Limited | Wholesale & retail | 2019 |
| Rubhall White Ltd | Wholesale & retail | 2026 |
| Ruburn Hall Ltd | Wholesale & retail | 2026 |
| Ruddy Welding Services Limited | Construction | 2019 |
| Running Horse Logistics Ltd | Transport & logistics | 2026 |
| Russtplumb Ltd | Construction | 2025 |
| RV Care Group Ltd | Health & social care | 2025 |
| RW Bear Ltd | Real estate | 2025 |
| S & C Painting Services Ltd | Administrative & support | 2008 |
| S & J Signs & Graphics Ltd. | Manufacturing | 1994 |
| S Ahmed Locuming Ltd | Wholesale & retail | 2023 |
| S Beardmore Limited | Administrative & support | 2015 |
| S Bennett Electrical Limited | Construction | 2003 |
| S D P Bathrooms and Kitchens Limited | Construction | 2013 |
| S L D Transport Limited | Transport & logistics | 2001 |
| S M Driveways Ltd | Administrative & support | 2020 |
| S M Electrics UK Ltd | Construction | 2013 |
| S M Khan Builders Ltd | Construction | 2019 |
| S&J Assets Ltd | Financial services | 2019 |
| S&J Builders Services Ltd | Construction | 2022 |
| S&M Couriers Ltd | Transport & logistics | 2021 |
| S&R Holdings WM Ltd | Financial services | 2025 |
| S&S Estates Holdings Limited | Real estate | 2025 |
| S. Clarke Utilities Ltd | Construction | 2023 |
| S.A Locuming Ltd | Wholesale & retail | 2021 |
| S.H.E. Holdings Ltd | Real estate | 2022 |
| S.K Maart Ltd | Wholesale & retail | 2025 |
| S.L. Scott Building Ltd | Construction | 2018 |
| S.M.T Contractors Limited | Construction | 2024 |
| S.S.E. Pipefittings Limited | Manufacturing | 2000 |
| S.T.L Property Ltd | Real estate | 2022 |
| S.W.A.T.S. Garage Ltd | Wholesale & retail | 2021 |
| S.Webb & SON Limited | Other services | 1954 |
| S4SPARES UK Ltd | Wholesale & retail | 2024 |
| Sa-Cosmetics Limited | Wholesale & retail | 2022 |
| SAA Plant & Machinery Limited | Manufacturing | 2025 |
| Saddlers Court (Solihull) Limited | Extraterritorial | 2011 |
| Sado Ltd | Wholesale & retail | 2025 |
| Saeela Ltd | Health & social care | 2023 |
| Safe Builds Midland Ltd | Construction | 2020 |
| Safe Construction (Midlands) Ltd | Construction | 2014 |
| Safe Tyres 2 Limited | Wholesale & retail | 2025 |
| Safehaven Nanny Services Ltd | Health & social care | 2025 |
| Safety and Fire Technology (UK) Limited | Manufacturing | 2024 |
| Safevent Services Ltd | Construction | 2025 |
| Safi Capital Ltd | Real estate | 2026 |
| Safi Global Trading Limited | Wholesale & retail | 2024 |
| Sahaj Catering Ltd | Hospitality | 2025 |
| Saibar International Freight Limited | Transport & logistics | 2021 |
| Sajtec Limited | Professional & scientific | 2021 |
| Sam's Natural Kitchen Ltd | Manufacturing | 2015 |
| Sambeatz Ltd | Construction | 2019 |
| Sammy J'S Cocktail Bar Ltd | Hospitality | 2024 |
| Samrai Properties Limited | Construction | 2021 |
| SAN Carwash Ltd | Administrative & support | 2023 |
| Sana Drive Ltd | Transport & logistics | 2025 |
| Sandeep Hair & Beauty Ltd | Other services | 2026 |
| Sandhu Asset Management Ltd | Real estate | 2021 |
| Sandringham Counselling Limited | Health & social care | 2016 |
| Sandwell Diesels Logistics Limited | Transport & logistics | 2007 |
| Sandwell Flyers Gymnastics Academy C.I.C. | Arts & recreation | 2016 |
| Sandwell Medical Group Limited | Health & social care | 2026 |
| Sandwell Provider ARM Nexus Limited | Health & social care | 2025 |