| ROM Soccerleagues Limited | Arts & recreation | 2010 |
| Romsley Retail Limited | Wholesale & retail | 2011 |
| Romsley Stores Limited | Wholesale & retail | 2015 |
| Roofing & Guttering Matters Ltd | Construction | 2013 |
| Roolive Limited | Administrative & support | 2006 |
| Room 2 Room Limited | Manufacturing | 2012 |
| Rooms Near ME Ltd | Hospitality | 2023 |
| Roope Leisure Ltd | Real estate | 2020 |
| Roope Ltd | Real estate | 2013 |
| Roope Resi Ltd | Real estate | 2020 |
| Rooster Diner Limited | Hospitality | 2024 |
| Rootom Properties Limited | Real estate | 2014 |
| Roots and Boots Limited | Administrative & support | 2014 |
| Rophica Ltd | Wholesale & retail | 2026 |
| Rose UK Residentials Ltd | Real estate | 2021 |
| Rowton IT Solutions Limited | Information & communication | 2008 |
| RP Technologies Limited | Manufacturing | 2005 |
| RPH Consultancy Ltd | Public administration | 2025 |
| RPS Contracts Midlands Ltd | Construction | 2015 |
| RPS Energy Nationwide Limited | Energy | 2018 |
| RR Secure Ltd | Administrative & support | 2025 |
| RRL Construction Ltd | Construction | 2012 |
| Rrvjs Limited | Real estate | 2021 |
| RS Cleaning Services PVT Ltd | Administrative & support | 2025 |
| RS Electrical & Building Services Ltd | Construction | 2026 |
| RS Garden Maintenance Ltd | Arts & recreation | 2025 |
| RSW Engineering Design Limited | Professional & scientific | 2014 |
| RT Premium Property Ltd | Financial services | 2025 |
| Rtcbt Ltd | Water & waste | 2022 |
| RTT Electrical Services Ltd | Construction | 2018 |
| Rubab's Supermarket Ltd | Wholesale & retail | 2024 |
| Rubabis Event Management & Catering Ltd | Hospitality | 2024 |
| Ruby Carpets Limited | Wholesale & retail | 2008 |
| Rubyallen Ltd | Professional & scientific | 2008 |
| Rudd & Sons Construction Limited | Construction | 2017 |
| Rudd Interiors Ltd | Construction | 2024 |
| Ruddock Properties Ltd | Real estate | 2026 |
| Rukar Holdings Limited | Real estate | 2024 |
| Rumbow Properties Limited | Construction | 1965 |
| Rushmere Consultants Ltd | Households | 2015 |
| Ruskin Properties Fountain House Limited | Real estate | 2015 |
| Russell & Elaine Martin Limited | Other services | 1962 |
| RV (Holdings) Limited | Professional & scientific | 2013 |
| Rxcd Instruments Ltd | Financial services | 2025 |
| Ryan West Electrical Limited | Construction | 2024 |
| Rydale Group Limited | Manufacturing | 1985 |
| Rydale Windows (Manufacturing) Limited | Manufacturing | 1991 |
| S a Wealth Management Limited | Financial services | 2022 |
| S and R Carless Limited | Financial services | 2024 |
| S B Roofing (Midlands) Ltd | Construction | 2025 |
| S E Eyecare Limited | Wholesale & retail | 2026 |
| S G Equine Ltd | Agriculture & fishing | 2024 |
| S K Diamonds Limited | Manufacturing | 2010 |
| S M ALI Associates Ltd | Health & social care | 2020 |
| S Marwaha Medical Limited | Health & social care | 2019 |
| S N Electrical Midlands Limited | Construction | 2016 |
| S W Piano Services Ltd | Administrative & support | 1997 |
| S Whitehead Coaching Ltd | Arts & recreation | 2024 |
| S Wingrove Gardening & Landscape Services Ltd | Administrative & support | 2019 |
| S&G Roadsweepers Ltd | Administrative & support | 2024 |
| S&K Architectural Ltd | Manufacturing | 2025 |
| S&S Social Work Solutions Ltd | Health & social care | 2024 |
| S&W Security Specialists Ltd | Administrative & support | 2017 |
| S.B.C.Engineering(Nuneaton)Limited | | 1970 |
| S.B.L. Property Ventures Ltd | Construction | 2012 |
| S.C.H. Property Limited | Real estate | 2020 |
| S.I.A Executive Ltd | Transport & logistics | 2026 |
| S.P. LED Lighting Ltd | Wholesale & retail | 2023 |
| S3R Enterprises Ltd | Real estate | 2022 |
| SAB Signs Limited | Extraterritorial | 2002 |
| Sabrazat Holding Ltd | Financial services | 2025 |
| Sacred Hour Limited | Professional & scientific | 2019 |
| Safe Fire and Security Systems Ltd | Administrative & support | 2020 |
| Safefitra Ltd | Information & communication | 2025 |
| Safetalk CIC | Health & social care | 2024 |
| Safety Improvements and Training Ltd | Education | 2005 |
| Safetynet Secure Services Ltd | Administrative & support | 2023 |
| Safetyrespect UK Limited | Wholesale & retail | 2022 |
| SAG Financial Ltd | Administrative & support | 2024 |
| Sahni Care Homes Limited | Health & social care | 2016 |
| Sahni Estates Limited | Real estate | 2025 |
| Sahni Group Limited | Financial services | 2025 |
| Sahni Property Investments Limited | Real estate | 2025 |
| Sahota Lettings Ltd | Real estate | 2024 |
| Sahota Trading Limited | Professional & scientific | 2014 |
| Saifcare Limited | Health & social care | 2014 |
| Saishree Ltd | Professional & scientific | 2024 |
| Sajkum Limited | Health & social care | 2016 |
| Sakta UK Ltd | Education | 2023 |
| Salehi Properties Limited | Real estate | 2026 |
| Salehi.House Limited | Real estate | 2025 |
| Sally John Homes Limited | Real estate | 2010 |
| Salon & Co Beauty Limited | Other services | 2017 |
| Samason Building & Landscaping Ltd | Construction | 2019 |
| Samco Star Transport Limited | Wholesale & retail | 2025 |
| Samia ALI Accountancy Limited | Professional & scientific | 2025 |
| Sampleworx Limited | Manufacturing | 2014 |
| Sampson Towers Limited | Real estate | 2018 |
| Samra Homes Ltd | Real estate | 2020 |
| Samra Palace Contracting UK Ltd | Construction | 2022 |