| Reves Properties Limited | Real estate | 2024 |
| Revesby Property Limited | Real estate | 2022 |
| Revhall Developments Limited | Households | 1983 |
| Revival Finance Ltd | Financial services | 2016 |
| Revival Studios Limited | Information & communication | 2004 |
| Revive & Rent Solutions Ltd | Construction | 2025 |
| Revive Build and Maintain Ltd | Construction | 2025 |
| Revive Counselling & Wellbeing CIC | Health & social care | 2024 |
| Revive Driveways & Paving Ltd | Construction | 2026 |
| Revive Homes Limited | Construction | 2025 |
| Revive Installations Limited | Construction | 2011 |
| Revive NOW Ltd | Other services | 2025 |
| Revive Physique Ltd | Arts & recreation | 2026 |
| Revive Pro Limited | Administrative & support | 2020 |
| Revive RVM Ltd | Water & waste | 2026 |
| Revivecycle Ltd | Water & waste | 2023 |
| Revivra Ltd | Health & social care | 2025 |
| Revoltcommit Ltd | Information & communication | 2025 |
| Revolution to Resolution Ltd | Administrative & support | 2025 |
| Revolutionnrg Limited | Professional & scientific | 2010 |
| Revolva Engineering Limited | Professional & scientific | 2017 |
| Revolve Constructions Limited | Construction | 2023 |
| Revolving Doors Services Ltd | Construction | 2025 |
| Revtech Motors Sales and Repairs Ltd | Wholesale & retail | 2026 |
| Reward Surveyors Limited | Professional & scientific | 2017 |
| Rewarding Pet Nutrition Ltd | Agriculture & fishing | 2018 |
| Rewheel Ltd | Administrative & support | 2024 |
| REX & Regal Limited | Administrative & support | 2006 |
| REX Gooding LLP | | 2006 |
| Rexhaj Estates Ltd | Real estate | 2023 |
| Rexhi Limited | Administrative & support | 2025 |
| Rexman Signs Ltd | Manufacturing | 2025 |
| Reydon Group PLC | Wholesale & retail | 1993 |
| Reyhan Lettings UK Ltd | Real estate | 2020 |
| Reynolds Associates (Architectural) Limited | Professional & scientific | 2008 |
| Reynolds Building Services Limited | Construction | 2008 |
| Reynolds Lettings Ltd | Real estate | 2019 |
| RF Cars Limited | Wholesale & retail | 2017 |
| RF Contracting Services Limited | Real estate | 2016 |
| RF Homes Limited | Real estate | 2022 |
| RF Innovations Limited | Manufacturing | 2016 |
| RF Property Developers Ltd | Real estate | 2026 |
| RFA Holdings Ltd | Real estate | 2026 |
| RFC2795 Ltd | Professional & scientific | 2016 |
| Rfid Threads Ltd | Professional & scientific | 2017 |
| RFL Construction Limited | Construction | 2018 |
| RFS Arbitrage Ltd | Wholesale & retail | 2025 |
| RG Build Group Ltd | Construction | 2023 |
| RG Estate Investments Ltd | Real estate | 2022 |
| RG Home Improvement & Gardening Service Ltd | Construction | 2025 |
| RGA Construction (Midlands) Limited | Construction | 2022 |
| RGA Group Ltd | Professional & scientific | 2025 |
| RGA Services Nottingham Ltd | Wholesale & retail | 2025 |
| RGB Facades Limited | Wholesale & retail | 2017 |
| RGC Home Developments Ltd | Real estate | 2026 |
| RGC Scaffolding Ltd | Construction | 2019 |
| Rgc-Rail Limited | Professional & scientific | 2015 |
| RGR Solutions Limited | Information & communication | 2018 |
| RGS Property Investments Limited | Real estate | 2024 |
| Rgscivils Ltd | Construction | 2022 |
| RH ACO LLP | | 2023 |
| RH Commercial Vehicles Ltd | Wholesale & retail | 1979 |
| RH Construction Services Ltd | Construction | 2019 |
| RH Design Solutions Ltd | Manufacturing | 2020 |
| RH Development ( Property ) Ltd | Wholesale & retail | 1972 |
| RH Rentals Ltd | Administrative & support | 1982 |
| RH TM Ltd | Construction | 2018 |
| Rhames Ltd | Manufacturing | 1999 |
| RHB Investments Ltd | Real estate | 2023 |
| RHD Direct Limited | Construction | 2011 |
| Rhema Social Impact Group Ltd | Financial services | 2023 |
| Rhenova Labs Ltd | Manufacturing | 2025 |
| Rheos App Ltd | Information & communication | 2026 |
| Rhino BAG (Skip Bags) Limited | Water & waste | 2015 |
| Rhino Boost Ltd | Wholesale & retail | 2025 |
| Rhino Rescue UK Ltd | Other services | 2017 |
| Rhinogas Ltd | Transport & logistics | 2015 |
| Rhiwritten Marketing Communications Limited | Professional & scientific | 2024 |
| RHK Education Limited | Education | 2016 |
| RHL Talent Consulting Limited | Professional & scientific | 2023 |
| RHM Plant Hire Ltd | Construction | 2023 |
| RHM Properties UK Limited | Real estate | 2021 |
| Rhnj Holding Limited | Real estate | 2021 |
| RHO Consulting Limited | Professional & scientific | 2023 |
| Rhoden Group, Payments Limited | Construction | 2022 |
| Rhodes Barrelling, Deburring & Engineering Services Limited | Administrative & support | 2012 |
| Rhodes Roofing Limited | Construction | 1997 |
| Rhodes to LET Ltd | Real estate | 2025 |
| Rhona Hurst Limited | Health & social care | 2019 |
| RHP Projects Ltd | Wholesale & retail | 2024 |
| RHP Property Projects Ltd | Real estate | 2024 |
| Rhymax Distribution Limited | Wholesale & retail | 2013 |
| Rhymes Improv Ltd | Arts & recreation | 2018 |
| Rhys Callow Limited | Professional & scientific | 2023 |
| Rhys G Builders Ltd | Construction | 2019 |
| Rhys Prior Limited | Wholesale & retail | 2024 |
| Rhys Spence Limited | Education | 2014 |
| Rhythm 5 Fellowship International Ltd | Other services | 2025 |
| Rhythm and Tide Productions Ltd | Arts & recreation | 2025 |
| Rhythm Nation Ltd | Arts & recreation | 2026 |