| Complete Bathrooms (Scotland) Ltd | Construction | 2021 |
| Complete Construction Contracts Ltd | Construction | 2021 |
| Complete Fabrication Solutions Ltd | Manufacturing | 2020 |
| Complete Weed Control (Scotland North West) Ltd. | Other services | 2008 |
| Compuinvest Ltd | Other services | 2014 |
| Compuvent Supplies Ltd. | Professional & scientific | 2002 |
| Concrete 7 Days Ltd | Manufacturing | 2026 |
| Connors Caravan Sales Limited | Wholesale & retail | 2026 |
| Conquest Resourcing Ltd | Administrative & support | 2024 |
| Conteh's Auto Spares Ltd | Wholesale & retail | 2024 |
| Continental Marketplace Ltd | Other services | 2019 |
| Continuum Training & Consultancy Ltd | Education | 2021 |
| COOKIE786 Ltd | Hospitality | 2016 |
| Cool Blinds & Shutters Limited | Manufacturing | 2023 |
| Cooper's Butcher Holdings Limited | Hospitality | 2021 |
| Copperwood Construction Services Ltd | Construction | 2014 |
| Core Electrical Fire & Security Limited | Construction | 2014 |
| Corelink Consulting Ltd | Information & communication | 2024 |
| Corvin Analytics Ltd | Information & communication | 2026 |
| Cosgrove Property Solutions Limited | Real estate | 2018 |
| Costcut Ltd | Wholesale & retail | 2025 |
| Cotton Clouds Baby and Childrenswear Ltd | Wholesale & retail | 2024 |
| Counselling and Therapy With Zara Ltd | Education | 2024 |
| Courier Connections (Scotland) Limited | Transport & logistics | 2001 |
| Courtyard Broadcast Ltd | Information & communication | 2024 |
| Coverage Service Solutions Ltd | Information & communication | 2025 |
| Cowan Holdings Scotland Limited | Other services | 2024 |
| CP (Peterhead) Limited | Other services | 2020 |
| CP Properties Ltd | Professional & scientific | 2015 |
| CPL Foods (Scotland) Ltd | Manufacturing | 2025 |
| Cragdarroch Consultancy Ltd | Administrative & support | 2021 |
| Cragdarroch Properties Ltd | Real estate | 2021 |
| Craig Driver Residential Ltd | Real estate | 2023 |
| Craig Field (Scotland) Limited | Construction | 2006 |
| Craig Johnston Asset Management Limited | Financial services | 2003 |
| Craig Mchugh Physio Ltd | Other services | 2021 |
| Craig Stevenson Ltd | Transport & logistics | 2023 |
| Craig's Kitchens and Bathrooms Ltd | Construction | 2015 |
| Craigview Strategies Limited | Professional & scientific | 2019 |
| CRB Logistics Ltd | Transport & logistics | 2025 |
| CRC Engineering Ltd | Construction | 2025 |
| CRC Joinery Limited | Construction | 2015 |
| Creative Promotions Limited | Professional & scientific | 1971 |
| Creideasach Employment Law Specialists Ltd. | Professional & scientific | 2006 |
| Crest WCI Limited | Administrative & support | 2013 |
| Crimewatch Scotland Limited | Information & communication | 2025 |
| Crimond Developments Ltd | Administrative & support | 2014 |
| CRM Windows Limited | Administrative & support | 2025 |
| Crossgatehead Assets Limited | Administrative & support | 2014 |
| Crownline Ltd | Wholesale & retail | 2025 |
| Cruickshank Property Investments Ltd | Real estate | 2026 |
| Crystal Clear Cleaning Limited | Administrative & support | 2025 |
| CS Electrical Contractors Ltd | Construction | 2022 |
| CSC Engineers Ltd | Manufacturing | 2016 |
| CSH Cladding Limited | Other services | 2020 |
| CT Coastal Ltd | Hospitality | 2022 |
| CTM Properties Ltd | Real estate | 2019 |
| CTM Surveying (Scot) Ltd | Professional & scientific | 2021 |
| CU Mara RUM Ltd | Hospitality | 2025 |
| Cubic Interior Design Consultancy Ltd | Administrative & support | 2003 |
| Cullinan Storage (Scotland) Ltd | Transport & logistics | 2024 |
| Cunningham Commercial Consulting Limited | Professional & scientific | 2024 |
| Cunningham Engineering Consultancy Limited | Construction | 2019 |
| Curlew Management Services Limited | Professional & scientific | 2018 |
| Curry Chippy Limited | Hospitality | 2024 |
| Custom Service Installation and Maintenance Limited | Administrative & support | 2021 |
| Cuthbertson Technical Services Ltd | Manufacturing | 2023 |
| Cutv Limited | Professional & scientific | 2025 |
| CVM Window Installations Ltd | Construction | 2017 |
| CYT Media Ltd | Administrative & support | 2013 |
| D & G Fire Protection Limited | Public administration | 2001 |
| D & J Rodger Ltd | Hospitality | 2022 |
| D & M Munro Limited | Financial services | 1990 |
| D 20 Software Limited | Administrative & support | 2002 |
| D B Hydraulics Ltd | Administrative & support | 2004 |
| D Brown Site Investigation Ltd | Construction | 2025 |
| D Crawford Group Limited | Arts & recreation | 2020 |
| D M Property Company Limited | Real estate | 1973 |
| D Michelle Ltd | Other services | 2022 |
| D&D Daycare Ltd | Agriculture & fishing | 2026 |
| D&E Homes Scotland Ltd | Real estate | 2026 |
| D&L 86 Limited | Water & waste | 2025 |
| D. Welsh Builders Limited | Construction | 1993 |
| D.A Crawford Inc Limited | Arts & recreation | 2022 |
| D.A Crawford Ltd | Arts & recreation | 2019 |
| D.Fleming Plumbing & Heating Ltd | Construction | 2025 |
| D.J.B. Electrical Solutions Limited | Construction | 2025 |
| D.Jankiewicz Ltd | Transport & logistics | 2021 |
| D13 Consulting Limited | Information & communication | 2014 |
| D20 Electrical Solutions Ltd | Manufacturing | 2021 |
| DAC Paisley Limited | Arts & recreation | 2024 |
| Dadandsonstransport Limited | Manufacturing | 2025 |
| DAG Management Consultancy Limited | Professional & scientific | 2022 |
| Daily Fill Ltd | Wholesale & retail | 2025 |
| Dalbeattie Fire Protection Limited | Public administration | 2009 |
| Dalghael Limited | Hospitality | 2025 |
| Dalhart Limited | Real estate | 2022 |
| Dalriada Sales & Leasing Ltd | Administrative & support | 2021 |
| Daly Engineering Ltd | Professional & scientific | 2018 |
| Dalziel & Sons Commercial Sales & Rentals Ltd | Wholesale & retail | 2020 |