| RKC Services Limited | Construction | 2020 |
| RKS Power Ltd | Financial services | 2026 |
| RL Kenny Ltd | Construction | 2023 |
| RL Van Solutions Ltd | Transport & logistics | 2018 |
| RM Electrics Ltd | Construction | 2024 |
| Rmdeliverysolutions Limited | Professional & scientific | 2024 |
| Rmlh Plumbing Limited | Construction | 2022 |
| Rmml Properties Ltd | Real estate | 2025 |
| Rmml Renewables Ltd | Construction | 2024 |
| RMV Rendering Ltd | Construction | 2020 |
| RN Ellis Ltd | Professional & scientific | 2012 |
| Roadmark Ltd | Manufacturing | 2026 |
| Roam and Remember Ltd | Wholesale & retail | 2026 |
| Robb Donald & Co. Limited | Real estate | 1988 |
| Robert H Goldie Limited | Wholesale & retail | 1966 |
| Robert Homes (Scotland) Ltd | Construction | 2020 |
| Roberton Dental Limited | Health & social care | 2014 |
| Robertson Refrigeration Ltd | Manufacturing | 2020 |
| Robertsons Joiners Limited | Construction | 2012 |
| Robinson at Safety Ltd | Other services | 2024 |
| Robinson Vehicle Components Limited | Wholesale & retail | 2001 |
| Roblex Property Ltd | Households | 2025 |
| Rocabec Ltd | Construction | 2007 |
| Roche Electrical Services Limited | Construction | 2013 |
| Roche Environmental (Scotland) Limited | Professional & scientific | 2014 |
| Roche Environmental Limited | Professional & scientific | 2012 |
| Rochelles German Shepherds Ltd | Agriculture & fishing | 2020 |
| Rock 'N' Role Models Limited | Arts & recreation | 2012 |
| Rockhopper Live Ltd | Information & communication | 2024 |
| Rockin Vans Ltd | Administrative & support | 2012 |
| Rockstar Hair Ltd | Wholesale & retail | 2025 |
| Rodmac Electrical Ltd | Construction | 2018 |
| Rodmark Holdings Ltd | Real estate | 2020 |
| Rogerson & Goldie Limited | Professional & scientific | 2008 |
| Romy Rollo Limited | Hospitality | 2025 |
| Roost Property Ltd | Real estate | 2020 |
| Rooted Acquisitions Ltd | Real estate | 2023 |
| Rooted Dental Care Ltd | Health & social care | 2021 |
| Rooted Dental Group Ltd | Financial services | 2025 |
| Ropelab Industries Limited | Wholesale & retail | 2025 |
| Ross Caldwell Garage Services Ltd | Wholesale & retail | 2025 |
| Ross Wallace Joinery Limited | Construction | 2012 |
| Ross Wilson Roofing Ltd | Construction | 2026 |
| Rowallan Timber and Damp Specialists (Contracts) Ltd | Professional & scientific | 2006 |
| Rowallan Timber and Damp Specialists (Surveys) Limited | Professional & scientific | 2014 |
| Rowanwest Limited | Wholesale & retail | 2003 |
| RP Build and Landscapes Ltd | Administrative & support | 2025 |
| RPS (Scotland) Ltd | Construction | 2007 |
| RPS Render & Facade Systems Ltd | Construction | 2021 |
| Rrjentertainment Ltd | Wholesale & retail | 2024 |
| RRS Foods Ltd | Hospitality | 2025 |
| RS Garage Services Ltd | Manufacturing | 2011 |
| RS Group Scotland Ltd | Wholesale & retail | 2017 |
| RS Roofing Ltd | Construction | 2026 |
| RT Resources Holdings Limited | Financial services | 2016 |
| RT Valet Ltd | Other services | 2022 |
| RTR Haulage Ltd | Transport & logistics | 2019 |
| Rubberseal Ltd | Construction | 2006 |
| Ruby Goop Ltd | Information & communication | 2025 |
| Ruby Kilmarnock Ltd | Hospitality | 2026 |
| Ruby Support Services Ltd | Professional & scientific | 2022 |
| Ruby UK 47 Ltd | Other services | 2024 |
| Runner Trades Ltd | Financial services | 2025 |
| Running Burn Events Limited | Hospitality | 2013 |
| Rural Green Limited | Energy | 2017 |
| Russell Hydraulics Limited | Professional & scientific | 2013 |
| RVA Building Ltd | Construction | 2022 |
| RW (Scotland) Supplies Ltd. | Wholesale & retail | 2013 |
| Ryan Lucas Logistics Limited | Transport & logistics | 2025 |
| S & B Fish (Agency) Limited | Wholesale & retail | 2005 |
| S & C Cleaning Solutions Ltd | Administrative & support | 2025 |
| S & C Roofing and Roughcasting Ltd | Construction | 2016 |
| S and S Refurbished Limited | Wholesale & retail | 2024 |
| S and S Salons Ltd | Other services | 2023 |
| S C C Contract Services Limited | Construction | 2018 |
| S C Fire Safety Consultants Ltd | Public administration | 2025 |
| S L Mckissock Joinery Limited | Construction | 2024 |
| S Scott Flooring Solutions Ltd | Other services | 2016 |
| S&L Subsea Services Limited | Professional & scientific | 2018 |
| S.Hair Joinery Ltd | Manufacturing | 2023 |
| S.It Retail Ltd | Wholesale & retail | 2026 |
| S.J. Bloor Consulting Limited | Administrative & support | 2016 |
| SA Access Solutions Ltd | Construction | 2022 |
| SA Scaffolding Solutions Ltd | Construction | 2024 |
| Saad Saleem Traders Ltd | Wholesale & retail | 2025 |
| Saad Walana Ltd | Wholesale & retail | 2025 |
| Sabihafoods Ltd | Hospitality | 2024 |
| SAC Largs Ltd | Hospitality | 2020 |
| Sadia Group Ltd | Wholesale & retail | 2023 |
| Safa Medical Ltd | Health & social care | 2013 |
| Safe Property Investment Ltd | Real estate | 2019 |
| Safeguard Facilities Management Scotland Ltd | Administrative & support | 2015 |
| Safeguard Security Systems Scotland Ltd | Administrative & support | 2008 |
| Safety 7 Ltd | Construction | 2025 |
| Sakirk Limited | Extraterritorial | 2012 |
| Sales Geek Glasgow West & Paisley Ltd | Professional & scientific | 2022 |
| Sales Geek Scotland Limited | Professional & scientific | 2025 |
| Sallyann Kelly Consulting Ltd | Professional & scientific | 2024 |
| Salt & Sky Ltd | Hospitality | 2025 |
| Saltire Kiwi Motorcycles Ltd. | Wholesale & retail | 2023 |