| Rennie Communications Limited | Information & communication | 2003 |
| Research LAB Ltd | Information & communication | 2023 |
| Rfcc Ltd | Administrative & support | 2024 |
| RGG Software Solutions Ltd | Information & communication | 2025 |
| Rider E&C Ltd | Professional & scientific | 2018 |
| Ridm Projects Limited | Construction | 2024 |
| Risk Engineering Ltd. | Real estate | 2008 |
| Rivtide Power Limited | Professional & scientific | 2023 |
| RJR Subsea Ltd | Professional & scientific | 2019 |
| Rmhctrad Ltd | Professional & scientific | 2025 |
| Rope Access Equipment Ltd | Public administration | 2025 |
| Roshan Fernandez Dental Care Limited | Health & social care | 2013 |
| Runwell Energy Services (UK) Ltd | Professional & scientific | 2025 |
| RVH Support Services Ltd | Health & social care | 2022 |
| S & C Bichan Ltd | Agriculture & fishing | 2022 |
| S & N Handley Limited | Real estate | 2019 |
| S.E.T Operational Services Limited | Professional & scientific | 2013 |
| S.S Chemicals Limited | Manufacturing | 2025 |
| Sable Publishing Ltd | Information & communication | 2023 |
| Sabre Advanced 3D Surveying Systems Ltd | Professional & scientific | 2016 |
| Sabre OIL & GAS Ltd | Professional & scientific | 2023 |
| Safelift Solutions Ltd | Information & communication | 2025 |
| Safewell Solutions Limited | Wholesale & retail | 2005 |
| Sahn Engineering Ltd | Professional & scientific | 2012 |
| Samk Healthcare Limited | Health & social care | 2017 |
| Sanctuary Subsea Ltd | Professional & scientific | 2017 |
| Sangster & Co Properties Limited | Real estate | 2023 |
| Sangster & Company Limited | Manufacturing | 2014 |
| SAR C&I Limited | Professional & scientific | 2021 |
| Satis Property Limited | Hospitality | 2021 |
| Savo Accountancy Services Limited | Professional & scientific | 2025 |
| SB Fitness (Banchory) Ltd | Arts & recreation | 2019 |
| Scolty Properties Limited | Real estate | 2017 |
| Seafield Properties Limited | Real estate | 2006 |
| Seismic Solutions Ltd | Professional & scientific | 2016 |
| Selador Engineering Limited | Professional & scientific | 2011 |
| Sentinel Instruments Limited | Manufacturing | 1999 |
| Shed Industries Ltd | Wholesale & retail | 2024 |
| Sipp Concept Ltd | Hospitality | 2026 |
| Sitecut Ltd | Information & communication | 2005 |
| Skinoholic Limited | Other services | 2024 |
| Slateburn Services Ltd | Mining & quarrying | 2023 |
| SLB Consultants Ltd | Information & communication | 2018 |
| Slow Sauce Ltd | Manufacturing | 2023 |
| Smith Plumbing Services Limited | Construction | 2003 |
| Solutions Subsea Ltd | Real estate | 2013 |
| Soncar Ltd | Manufacturing | 2025 |
| Sound Festival | Arts & recreation | 2011 |
| Speed Mill Services Limited | Manufacturing | 1972 |
| SPG Well Engineering Limited | Professional & scientific | 2013 |
| Split Track Productions Limited | Information & communication | 2013 |
| Springfield Decorators Limited | Construction | 2011 |
| Stash (UK) Limited | Professional & scientific | 2013 |
| Stateplan Limited | Real estate | 2005 |
| Stella Design Ltd | Professional & scientific | 2017 |
| Steve Brockie Coaching Ltd | Professional & scientific | 2025 |
| Steven Birnie Joinery Limited | Manufacturing | 2014 |
| Stitch Boutique Ltd | Manufacturing | 2021 |
| Stob BAN Ltd | Professional & scientific | 2023 |
| Stonechat Ltd | Professional & scientific | 2021 |
| Strachan Trading Company Ltd | Real estate | 2020 |
| Street Drilling Engineering Limited | Mining & quarrying | 2007 |
| Struan Dalgleish Arboriculture Ltd | Agriculture & fishing | 2019 |
| Stuart Burnett Ltd | Professional & scientific | 2026 |
| Stuart Steel Electrical Limited | Construction | 2015 |
| Stuart Watt Plumbing & Heating Limited | Construction | 2016 |
| Studio Sette Ltd | Wholesale & retail | 2022 |
| Submergent Technologies Ltd | Professional & scientific | 2013 |
| Subsea Construction Services Ltd | Construction | 2025 |
| Sundeen Design Ltd | Professional & scientific | 2022 |
| Sunshine Nursery Torphins Limited | Education | 2005 |
| Surf Engineering Management Limited | Professional & scientific | 2015 |
| SW Plumbing Limited | Construction | 2026 |
| Sweeney Energy Solutions Ltd | Professional & scientific | 2024 |
| Synapse Physiotherapy (Aberdeen) Limited | Health & social care | 2024 |
| T.L.C. Potatoes Ltd. | Agriculture & fishing | 1993 |
| Taylor Lawrie Accountants Ltd | Professional & scientific | 2021 |
| Terdy Developments Limited | Real estate | 2016 |
| Tfestec Ltd | Professional & scientific | 2025 |
| TG Prime Teaching Ltd | Education | 2022 |
| THE Blue Sheep Gardening Company Ltd | Administrative & support | 2018 |
| THE Chemical Doctor Ltd | Wholesale & retail | 2025 |
| THE Cook Factor Limited | Hospitality | 2003 |
| THE Deesidedly Tasty Company Ltd | Hospitality | 2015 |
| THE Expert Partnership (Scotland) Limited | Professional & scientific | 2025 |
| THE Falls Restaurant Limited | Hospitality | 2025 |
| THE Glassel Community Company Limited | Arts & recreation | 2001 |
| THE Greedy Goose Ltd | Hospitality | 2016 |
| THE Highlands Retirement Livery Ltd | Agriculture & fishing | 2026 |
| THE Kilt Shop Ltd | Extraterritorial | 2021 |
| THE Mains of Drum Garden Centre Limited | Wholesale & retail | 2006 |
| THE Naked Kettle Ltd | Wholesale & retail | 2023 |
| THE Printworks (Burnhaven) Limited | Hospitality | 2014 |
| THE Second CUP Limited | Wholesale & retail | 2014 |
| THE Strong Water Co. Limited | Wholesale & retail | 2014 |
| THE Unit Gym & Fitness Ltd | Arts & recreation | 2016 |
| This Little Piggy (Scotland) Limited | Professional & scientific | 2014 |
| Thistle Aquatic Ltd. | Professional & scientific | 2001 |
| Thompson NDT Services Limited | Administrative & support | 2007 |
| Thomson Properties Ltd | Other services | 2011 |