| Rotojar Innovations Limited | Administrative & support | 2011 |
| Rotoserv Limited | Professional & scientific | 2010 |
| Rouse Nutrition Limited | Wholesale & retail | 2021 |
| Route Seven Limited | Real estate | 2023 |
| Route Two Creative Ltd | Professional & scientific | 2022 |
| Rovhub Limited | Information & communication | 2017 |
| Rovop Group Limited | Professional & scientific | 2017 |
| Rovop Holdings Limited | Professional & scientific | 2017 |
| Rovop Limited | Professional & scientific | 2011 |
| Rovop Midco Limited | Professional & scientific | 2017 |
| Rovop Subsea Limited | Administrative & support | 2025 |
| Rovplan Ltd | Administrative & support | 2025 |
| Rovprop Limited | Real estate | 2014 |
| Rovtech Group Limited | Manufacturing | 2024 |
| Rowanbank Salon Ltd | Other services | 2016 |
| Rowett Research Institute (the) | Professional & scientific | 1962 |
| Roxar Limited | Professional & scientific | 1984 |
| ROY Charles Limited | Wholesale & retail | 2003 |
| ROY Mcdonald (Slater & Roughcaster) Limited | Administrative & support | 2003 |
| Royal Northern Countryside Initiative | Education | 2002 |
| Rozehomes Ltd | Construction | 2019 |
| RPM Enterprises Ltd | Hospitality | 2019 |
| RR Makeup Ltd | Other services | 2024 |
| RRC Controls Services Limited | Manufacturing | 1999 |
| Rroost Ltd | Administrative & support | 2024 |
| RRY Convenience Stores Ltd | Wholesale & retail | 2021 |
| RS Blastech Ltd | Wholesale & retail | 2012 |
| RS Contracts & Home Improvements Ltd | Manufacturing | 2026 |
| RS Engineering & Technology Limited | Professional & scientific | 2018 |
| RS Granite Properties Ltd | Households | 2022 |
| RS Machinery Group Ltd | Professional & scientific | 2012 |
| RS Machinery Holdings Ltd | Administrative & support | 2012 |
| RS Primeone Ltd | Health & social care | 2026 |
| RS Roughcasting Ltd | Other services | 2011 |
| RS Stays Limited | Real estate | 2025 |
| RS Subsea Ltd | Information & communication | 2016 |
| RS Subsea Services Aberdeen Limited | Professional & scientific | 2025 |
| RS Weld Ltd | Agriculture & fishing | 2019 |
| RSD Technical Services Limited | Professional & scientific | 2024 |
| RSE Water Technologies Limited | Administrative & support | 2022 |
| RSH Services Group Limited | Professional & scientific | 2025 |
| Rsjl Property Services Limited | Real estate | 2021 |
| RSL Motors Limited | Wholesale & retail | 2011 |
| RSL NDT Ltd | Administrative & support | 1989 |
| RSM Scotland Limited | Mining & quarrying | 2019 |
| Rsre Limited | Other services | 2019 |
| RST Inspection & Engineering Services Ltd | Manufacturing | 2025 |
| RST Sensing Ltd | Professional & scientific | 2025 |
| RT Maritime Consultancy Ltd | Extraterritorial | 2025 |
| RT Site Services (Scotland) Ltd | Manufacturing | 2021 |
| RTA Engineering Solutions Ltd | Professional & scientific | 2024 |
| RTB Operations and Training OIL & GAS Limited | Professional & scientific | 2011 |
| RTF Calibration Supply & Services Limited | Administrative & support | 2010 |
| RTJ Ltd | Wholesale & retail | 2021 |
| RTO Engineering Limited | Professional & scientific | 2023 |
| RTO Property Investments Ltd | Real estate | 2024 |
| RTV - Worldnet Shipping Limited | Transport & logistics | 2002 |
| RUA Stuart LP | | 2013 |
| Rubacava Ltd | Professional & scientific | 2018 |
| RUBANS020580 Limited | Wholesale & retail | 2023 |
| Rubber Ducky Engineering Ltd | Professional & scientific | 2011 |
| Rubberatkins Limited | Manufacturing | 1988 |
| Rubicon Oilfield International UK Ltd. | Administrative & support | 2003 |
| Rubislaw (XX) Limited | Administrative & support | 2007 |
| Rubislaw Advisory Ltd | Professional & scientific | 2026 |
| Rubislaw Associates Ltd | Mining & quarrying | 2012 |
| Rubislaw Estate Agency Limited | Real estate | 2025 |
| Rubislaw Furniture Solutions Limited | Wholesale & retail | 2023 |
| Rubislaw Inventories Limited | Other services | 2018 |
| Rubislaw Limited | Construction | 2013 |
| Rubislaw Park Ltd. | Other services | 2014 |
| Rubislaw Place Medical Group LLP | | 2021 |
| Rubislaw Property Developments Limited | Construction | 2024 |
| Rubislaw Property Rental Limited | Real estate | 2022 |
| Rubislaw Quarry Aberdeen Ltd. | Real estate | 2005 |
| Rubislaw Relocation Limited | Other services | 2018 |
| Rubislaw Residence Ltd | Real estate | 2023 |
| Rubislaw Risk Consulting Ltd | Professional & scientific | 2021 |
| Rubislaw Surveying Services Limited | Professional & scientific | 1991 |
| Rubislaw Terrace Care Limited | Health & social care | 2020 |
| Ruby Endeavours Ltd | Real estate | 2024 |
| Ruby Holdings (Aberdeen) Limited | Financial services | 2022 |
| Ruby Learning Limited | Financial services | 2024 |
| Ruby Lynn Cosmetics Ltd | Wholesale & retail | 2021 |
| Rubycom Limited | Other services | 2013 |
| Ruco Limited | Wholesale & retail | 2003 |
| Rugbytots Aberdeen Limited | Education | 2015 |
| Rukav Adverts Ltd | Professional & scientific | 2020 |
| Rumdewan Enterprises Limited | Real estate | 2008 |
| Rumeg Ltd | Other services | 2011 |
| Rumyestates Limited | Real estate | 2025 |
| Runa Jewelry LP | | 2014 |
| Running Wheels Aberdeen Ltd | Transport & logistics | 2020 |
| Runrig Merchandising Limited | Wholesale & retail | 1991 |
| Runway Consulting Ltd | Professional & scientific | 2018 |
| Rushfront Clothing Ltd | Wholesale & retail | 2025 |
| Russell Geomechanics Limited | Professional & scientific | 2014 |
| Russell Gibson Financial Management Limited | Other services | 2007 |
| Russell Landscaping Ltd | Administrative & support | 2009 |
| Russell Petroleum Ltd | Professional & scientific | 2016 |