| R&G Auto Body Tech Ltd | Wholesale & retail | 2021 |
| R&G Projects Limited | Information & communication | 2017 |
| R&H Group Limited | Real estate | 2016 |
| R&H Property Group Ltd | Hospitality | 2026 |
| R&Hb Ltd | Wholesale & retail | 2025 |
| R&J Glow Lounge Ltd | Other services | 2023 |
| R&J Heating Solutions Limited | Construction | 2026 |
| R&K Glossop Ltd | Administrative & support | 2015 |
| R&M Cosmetics Ltd | Wholesale & retail | 2020 |
| R&M Starr Holdings Ltd | Real estate | 2026 |
| R&M Sweet Stop Towers Ltd | Wholesale & retail | 2024 |
| R&N Fletcher Properties Limited | Real estate | 2019 |
| R&Pl Properties Ltd | Real estate | 2023 |
| R&R Collective Limited | Other services | 2016 |
| R&R Drainage Services Ltd | Construction | 2021 |
| R&R Tournaments Limited Liability Partnership | | 2022 |
| R&R Yorkshire Properties Limited | Real estate | 2017 |
| R&S Partners Ltd | Health & social care | 2019 |
| R-Industrial Ltd | Wholesale & retail | 2023 |
| R-U Inspecting Ltd | Construction | 2007 |
| R. A.B Interiors Ltd | Construction | 2025 |
| R. Anthonies Limited | Construction | 1972 |
| R. B. Driving Services Ltd | Transport & logistics | 2006 |
| R. Baldwin Developments Limited | Real estate | 2019 |
| R. Elliott Bricklaying Services Ltd | Construction | 2019 |
| R. Hanson Roofing Limited | Construction | 2003 |
| R. Helliwell Transport Ltd | Transport & logistics | 2022 |
| R. Hostombe Limited | Professional & scientific | 1989 |
| R. I. Ambler & Co Limited | Construction | 2006 |
| R. L. White (Decorators) Limited | Construction | 2003 |
| R. S. Agricultural Limited | Agriculture & fishing | 2024 |
| R. Setter Properties Limited | Real estate | 2025 |
| R.A Building Contractors Limited | Construction | 2024 |
| R.A. Ruby Property Ltd | Real estate | 2025 |
| R.A.B. Engineering Design Ltd | Construction | 2004 |
| R.A.B. Oughtibridge Limited | Construction | 2016 |
| R.Askew Electrical & Security Ltd | Information & communication | 2019 |
| R.D Austin PUB Company Ltd | Administrative & support | 2026 |
| R.D.P Builders Limited | Construction | 2023 |
| R.H. Emsley & Sons Ltd | Construction | 2005 |
| R.Hall & SON Developments Ltd | Construction | 2023 |
| R.I.R Prosser Ltd | Transport & logistics | 2025 |
| R.J.Stokes & Co. Limited | Wholesale & retail | 1923 |
| R.L. Ferris Limited | Professional & scientific | 2010 |
| R.P.M. Metals Waste Recycling Ltd | Wholesale & retail | 2024 |
| R.S.Sabkha Construction and Developments Ltd. | Construction | 2016 |
| R.V. Consulting & Recruitment Limited | Wholesale & retail | 2015 |
| R.X.B. Productions Limited | Information & communication | 1996 |
| R1SE Brook Place Ltd | Arts & recreation | 2021 |
| R1SE Urban Spa Ltd | Other services | 2024 |
| R2C Online Holdings Limited | Information & communication | 2007 |
| R2C Online Limited | Information & communication | 2003 |
| R2S2 Properties Limited | Real estate | 2023 |
| R3 Data Recovery Ltd | Information & communication | 2004 |
| R3 Data Solutions Limited | Information & communication | 2012 |
| R3COVER Limited | Extraterritorial | 2009 |
| R3N Limited | Real estate | 2025 |
| R4 Renovations Limited | Construction | 2016 |
| R4HMAN Ltd | Wholesale & retail | 2026 |
| R5 Fitness Limited | Other services | 2020 |
| R50 Optics Ltd | Health & social care | 2023 |
| R84D Ltd | Administrative & support | 2007 |
| RA Cleaning Services Ltd | Administrative & support | 2015 |
| RA Desserts Ltd | Wholesale & retail | 2017 |
| RA Pharm Ltd | Health & social care | 2019 |
| RA Property and Lettings Ltd | Real estate | 2021 |
| RA Services (UK) Limited | Extraterritorial | 2006 |
| Raaen Properties Ltd | Real estate | 2026 |
| Raah CIC | Professional & scientific | 2020 |
| Raap Property Limited | Real estate | 2021 |
| Rabal Group Ltd | Hospitality | 2026 |
| Rabbani House Ltd | Real estate | 2022 |
| Rabea Logistics Limited | Transport & logistics | 2026 |
| Rabia's Islamic Gifts and Sweets Limited | Wholesale & retail | 2024 |
| Rabjohn & Mellard Homes Limited | Construction | 2024 |
| Rabjohn Construction (Oughtibridge) Ltd | Construction | 2019 |
| Rabjohn Property Developments Limited | Construction | 2020 |
| Rabone Truck & BUS Services Ltd | Transport & logistics | 2025 |
| RAC Cladding Ltd | Construction | 2021 |
| Raccoon Estates Ltd | Real estate | 2025 |
| Race & Play Karting Ltd | Arts & recreation | 2022 |
| Race 2 Space Ltd | Education | 2024 |
| Race Cottam Associates Limited | Professional & scientific | 1993 |
| Race Cottam Group Limited | Professional & scientific | 2018 |
| Race Tech Motorsport Ltd | Manufacturing | 2012 |
| Raceproved Ltd | Professional & scientific | 2006 |
| Rachael's Pet Care Services Limited | Professional & scientific | 2025 |
| Rachel J Barker Ltd | Professional & scientific | 2013 |
| Rachel's Hot TUB Hideaway Ltd | Real estate | 2026 |
| Rachuk Limited | Health & social care | 2014 |
| Racing Lines Derby Ltd | Wholesale & retail | 2005 |
| Rack Attack Limited | Wholesale & retail | 2025 |
| Racketplayer Limited | Arts & recreation | 2025 |
| Racketslam Limited | Arts & recreation | 2025 |
| Racketsports Limited | Arts & recreation | 2025 |
| Rackfords Limited | Wholesale & retail | 1975 |
| Raconteurs Audio LLP | | 2020 |
| Racs Refrigeration Group Ltd | Wholesale & retail | 2025 |
| RAD Chat Limited | Health & social care | 2022 |
| RAD Home Services Limited | Construction | 2023 |