| Realise Energy Services Limited | Professional & scientific | 2011 |
| Realise Energy Solutions Ltd | Financial services | 2015 |
| Realise Wind Holdings Ltd | Professional & scientific | 2016 |
| Realistic Rents Limited | Real estate | 2016 |
| Reality Creations Ltd | Information & communication | 2026 |
| Realtimeviz Ltd | Professional & scientific | 2022 |
| Reborn Landrovers Ltd | Wholesale & retail | 2025 |
| Recall CPD Ltd | Other services | 2016 |
| Reckster Limited | Professional & scientific | 2021 |
| Red String Limited | Professional & scientific | 2018 |
| Redstart Energy Limited | Administrative & support | 2024 |
| Redwood (Scotland) Limited | Construction | 1987 |
| Refreshing Construction Ltd | Construction | 2026 |
| Regulated Trading Limited | Information & communication | 2013 |
| Reilly Real Estate Limited | Real estate | 2020 |
| Reliance Systems Ltd | Administrative & support | 2023 |
| Remarkable Turtle Limited | Manufacturing | 2021 |
| Renewabell Consulting Limited | Professional & scientific | 2003 |
| Renewable Energy Development Group Ltd | Energy | 2002 |
| Renewables Connect Ltd | Information & communication | 2023 |
| Renewed Focus Ltd | Professional & scientific | 2022 |
| RENOV8 Installations Ltd | Construction | 2022 |
| Renu Bathrooms Limited | Construction | 2017 |
| Restful Paws Ltd | Professional & scientific | 2025 |
| Restoration & Renovation (Scotland) Ltd. | Construction | 2002 |
| RGG Design & Architectural Services Ltd | Professional & scientific | 2023 |
| RGR Consulting Limited | Administrative & support | 2000 |
| Rhet Perth & Kinross Countryside Initiative | Education | 2003 |
| Riaz Premium Autos Ltd | Wholesale & retail | 2024 |
| Richard Carmichael Research & Consulting Ltd | Professional & scientific | 2021 |
| Richards Ventilation Services Ltd | Manufacturing | 2019 |
| Rickety Rackety Records Limited | Extraterritorial | 1988 |
| Ridfire Ltd | Public administration | 2018 |
| RIG Mover Ltd | Mining & quarrying | 2018 |
| Rigifa Home Care Limited | Health & social care | 2012 |
| Rigtech Decommissioning Services Limited | Extraterritorial | 2019 |
| RIO Vista Limited | Professional & scientific | 2015 |
| Rise Trade Ltd | Wholesale & retail | 2024 |
| RISOTTO2GO Ltd | Hospitality | 2012 |
| Rites and Rituals Scotland Ltd | Other services | 2024 |
| River Park Training Limited | Other services | 2021 |
| Rivermay Stud and Freelance Groom Ltd | Agriculture & fishing | 2021 |
| Riversdale Marketing (Scotland) Limited | Real estate | 1999 |
| Riverstone Lodge Scone Ltd | Hospitality | 2025 |
| Rivet Games Limited | Information & communication | 2018 |
| RJC Electrical Contracting Ltd | Construction | 2023 |
| Rjda Consulting Limited | Professional & scientific | 2001 |
| RJG Corporation Ltd | Wholesale & retail | 2021 |
| RJM Properties (Scotland) Ltd | Real estate | 2025 |
| RKM Joinery Scotland Ltd | Manufacturing | 2022 |
| RKS Design Ltd | Professional & scientific | 2025 |
| RL Rattray Limited | Construction | 2004 |
| Rluw Services Ltd | Professional & scientific | 2017 |
| RMC Pump Services Ltd | Construction | 2026 |
| RMK Property Group Ltd | Real estate | 2025 |
| RN Joinery (Perth) Ltd | Construction | 2024 |
| Robb + Sharp Property Renovations Ltd | Real estate | 2019 |
| Robbo Prop Co Ltd | Real estate | 2021 |
| Robbo Retail Ltd. | Wholesale & retail | 2012 |
| Robert Bruce Driving School Limited | Education | 2018 |
| Robert Cameron Hair Ltd | Other services | 2017 |
| Robert Neill Limited | Agriculture & fishing | 2009 |
| Robert Nicol Limited | Wholesale & retail | 2004 |
| Roberts & Rose Ltd | Education | 2020 |
| Robertson Enterprises Limited | Professional & scientific | 1985 |
| Robertson Technology Advisory Group Limited | Professional & scientific | 2021 |
| Robertson's Safeguarder Ltd | Health & social care | 2023 |
| Robertson’S Cleaning Co. Ltd | Administrative & support | 2024 |
| Robin Francis Ltd | Administrative & support | 2023 |
| Robocode Ltd | Information & communication | 2017 |
| Robotic Systems Scotland Limited | Manufacturing | 2003 |
| Rocabao Ltd | Manufacturing | 2012 |
| Roctech Ltd | Wholesale & retail | 2013 |
| Roddy's Garage Limited | Wholesale & retail | 2014 |
| Rohallion Homes Ltd | Construction | 2024 |
| Romanbow Limited | Transport & logistics | 2021 |
| Romano Alexander Media Limited | Information & communication | 2010 |
| Room Heating Limited | Construction | 2025 |
| Roroyere Hydro Ltd | Energy | 2009 |
| Rose Martin Shooting Limited | Arts & recreation | 2024 |
| Roselea Enterprises Ltd | Construction | 2017 |
| Ross & Ross Holdings Ltd | Wholesale & retail | 2023 |
| Ross Allan Mobile Service & Repairs Ltd | Wholesale & retail | 2023 |
| Ross Dental Centres Limited | Health & social care | 2006 |
| Ross Project Services Limited | Professional & scientific | 2018 |
| Ross Technical Training Ltd | Professional & scientific | 2016 |
| Rossie Bar Ltd | Hospitality | 2026 |
| Rossie Property Development Company Limited | Real estate | 2005 |
| Rowan Consultancy:Live Better Limited | Health & social care | 2022 |
| Rowan Forestry Ltd | Agriculture & fishing | 2026 |
| Rowan Mayfield Limited | Real estate | 1985 |
| Rowan Rope Services Ltd | Other services | 2022 |
| Rowanridge Limited | Transport & logistics | 1999 |
| Rowco Rose Ltd | Financial services | 2025 |
| RPK Computing Services Ltd | Construction | 1996 |
| Rplv Asset Co. PTY Ltd | | 2025 |
| RS Autocare Perth Ltd | Wholesale & retail | 2019 |
| Rubber Duck Books Ltd | Information & communication | 2026 |
| Rubha BAN Leisure Ltd | Hospitality | 2017 |
| RUM Auctioneer Ltd | Extraterritorial | 2022 |