| Recommended Admiral Management LP | | 2012 |
| Recommended Decorators Ltd. | Construction | 2011 |
| Recon Sport Analytics Ltd | Information & communication | 2025 |
| Reconciliation and Liberty Bible Church Ltd | Information & communication | 2023 |
| Reconditorium Limited | Information & communication | 2015 |
| Record Breaker LP | | 2016 |
| Record Flex LP | | 2015 |
| Recorda Import L.P. | | 2014 |
| Recovantis Fileform Ltd Limited | Information & communication | 2026 |
| Recreativ.Com LP | | 2014 |
| Recruit the Best Limited | Administrative & support | 2016 |
| Recruitment Scotland Ltd | Administrative & support | 2022 |
| Recycle Edinburgh Limited | Administrative & support | 2011 |
| Recycle-To-Cycle | Wholesale & retail | 2002 |
| Recycle-To-Cycle Trading Limited | Wholesale & retail | 2002 |
| Recycling & Data Services Ltd | Water & waste | 2012 |
| Red & Hood Chocolates Ltd | Manufacturing | 2025 |
| Red & White Store Ltd | Wholesale & retail | 2024 |
| Red 75 Limited | Other services | 2020 |
| Red Baron Group LP | | 2016 |
| Red Bridge Arts | Arts & recreation | 2015 |
| Red Bridge Arts Management CIC | Arts & recreation | 2026 |
| Red Cat Communication Ltd | Professional & scientific | 2026 |
| Red Chilli Foods Ltd | Wholesale & retail | 2026 |
| Red Circle Communications Limited | Professional & scientific | 2010 |
| Red Clover Designs Limited | Manufacturing | 2023 |
| Red Dawn Properties Ltd | Real estate | 2017 |
| Red Dog Saloons Ltd | Hospitality | 2011 |
| Red Dragon Edinburgh Limited | Other services | 2018 |
| Red Earth Tattoo Ltd | Other services | 2024 |
| Red Facilities Limited | Information & communication | 2001 |
| Red FOX Design Ltd | Wholesale & retail | 2016 |
| Red FOX Props Ltd | Arts & recreation | 2019 |
| Red Healey LP | | 2001 |
| Red Herring Arts and Media | Information & communication | 1998 |
| Red JAM Digital Ltd | Information & communication | 2018 |
| Red Jasper Systems Limited | Professional & scientific | 2008 |
| Red Kite Animation Limited | Information & communication | 2002 |
| Red Lemon Clothing Limited | Extraterritorial | 2011 |
| Red Lemon Workwear Limited | Wholesale & retail | 2011 |
| Red Letter Law Limited | Administrative & support | 2017 |
| Red Line (Scotland) Limited | Wholesale & retail | 2001 |
| Red Line Alliance LP | | 2017 |
| Red Lion Corporation LP | | 2016 |
| Red Lynx Limited | Professional & scientific | 2011 |
| Red Note Ensemble Ltd | Arts & recreation | 2009 |
| Red Oak Property Management Limited | Real estate | 2025 |
| Red Orchids SP | | 2004 |
| Red Panda Edinburgh Ltd | Real estate | 2025 |
| Red Plumbing Limited | Construction | 2011 |
| Red Regal Limited | Manufacturing | 1985 |
| Red Rock Renewables Limited | Administrative & support | 2005 |
| Red Rose Corporation L.P. | | 2012 |
| Red Sixty One Limited | Information & communication | 2002 |
| Red Sky Digital UK Limited | Professional & scientific | 2022 |
| Red Sky Management Limited | Professional & scientific | 2003 |
| Red Sky Resolve Limited | Administrative & support | 2025 |
| Red Star PUB Company (WR II) Limited | Professional & scientific | 1999 |
| Red Star PUB Company (WR) Limited | Real estate | 1999 |
| Red Sun Imports Ltd | Wholesale & retail | 2025 |
| Red Sun Rising Ltd | Information & communication | 2024 |
| Red Trousers Limited | Hospitality | 2016 |
| Red Truck Bistro Ltd | Hospitality | 2026 |
| Red Viking Coaching Ltd | Administrative & support | 2023 |
| Red Viking Estates Ltd | Construction | 2023 |
| Red Viking Finance Ltd | Professional & scientific | 2023 |
| Red Viking Investments Ltd | Real estate | 2022 |
| Red Willow Advisers Limited | Professional & scientific | 2015 |
| RED25 Entertainment Limited | Hospitality | 2013 |
| Redacted Games Ltd | Information & communication | 2025 |
| Redan Capital Advisors Limited | Administrative & support | 2015 |
| Redan Resourcing Ltd | Administrative & support | 2024 |
| Redash Takeaway Ltd | Hospitality | 2026 |
| Redbay Global L.P. | | 2010 |
| Redbridge Industries L.P. | | 2015 |
| Redbridge Pristine LP | | 2017 |
| Redbury Trading Company L.P. | | 2010 |
| Redco Express LP | | 2016 |
| Redcroft Associates Limited | Professional & scientific | 2006 |
| Redcroft Care Homes Ltd | Health & social care | 2011 |
| Redcub Services LP | | 2017 |
| Reddington Wealth Management Limited | Financial services | 2015 |
| Reddl Ltd | Information & communication | 2024 |
| Rede GP Scotland LLP | | 2017 |
| Rede Invest 1 LP | | 2017 |
| Rede Invest 10 LP | | 2019 |
| Rede Invest 11 LP | | 2019 |
| Rede Invest 12 LP | | 2019 |
| Rede Invest 14 LP | | 2019 |
| Rede Invest 15 LP | | 2020 |
| Rede Invest 2 LP | | 2017 |
| Rede Invest 3 LP | | 2018 |
| Rede Invest 4 LP | | 2018 |
| Rede Invest 5 LP | | 2018 |
| Rede Invest 6 LP | | 2018 |
| Rede Invest 7 LP | | 2018 |
| Rede Invest 8 LP | | 2018 |
| Rede Invest 9 LP | | 2019 |
| Rede Invest Master LP | | 2019 |
| Rede Invest Scotland Limited | Administrative & support | 2017 |