| Burnbrae Holdings Limited | Administrative & support | 2003 |
| BW Technology Limited | Professional & scientific | 2010 |
| BWK Controls Ltd | Professional & scientific | 2026 |
| C Gilmore Plumbing and Heating Limited | Construction | 2011 |
| C L Simple Solutions Ltd | Construction | 2019 |
| C Taylor Plant Services Ltd | Administrative & support | 2024 |
| C&F Network Solutions Ltd | Construction | 2024 |
| C&S Maintenance Ltd | Construction | 2025 |
| C-Path Software Engineering Ltd | Information & communication | 2012 |
| C. T Plant Ltd | Administrative & support | 2020 |
| CA Aviation Ltd | Transport & logistics | 2024 |
| Cadora Inverkeithing Ltd | Hospitality | 2026 |
| CAL Finnie Ltd | Real estate | 2025 |
| Caldwellside Plumbing & Electrical Ltd | Extraterritorial | 2026 |
| Calgary Holdings Ltd | Real estate | 2023 |
| Callum Boyle Logistics Ltd | Transport & logistics | 2025 |
| Calm Scotland Limited | Real estate | 2020 |
| Cameron & Co Estates Limited | Real estate | 2026 |
| Campbell Alexander Financial Management Ltd | Financial services | 2012 |
| Campmerry Ltd | Professional & scientific | 2024 |
| Canderrigg Services Limited | Wholesale & retail | 1977 |
| CAP Technical Solutions Ltd | Professional & scientific | 2022 |
| Care and Repair in Lanarkshire Limited | Health & social care | 2004 |
| Cargo Seat Limited | Manufacturing | 2012 |
| Carluke Gents Barbers Ltd | Other services | 2018 |
| Carluke Hair Ltd | Other services | 2024 |
| Carrick Consulting Limited | Information & communication | 2024 |
| Carstairs Mains Dairy LLP | | 2022 |
| Cartland Engineering Ltd | Professional & scientific | 2024 |
| Cartridges and Clays Limited | Arts & recreation | 2022 |
| Casa DM Limited | Construction | 2025 |
| Casale Letting Ltd | Real estate | 2026 |
| Casanova Platform Ltd | Professional & scientific | 2025 |
| Cass Property Consultants Limited | Professional & scientific | 2005 |
| Castle Composites 2016 Limited | Manufacturing | 2016 |
| Castle Composites Limited | Manufacturing | 1998 |
| Castle Equity Holdings Limited | Professional & scientific | 2018 |
| Castledyke Cars Ltd | Wholesale & retail | 2025 |
| Castleton House Limited | Real estate | 2018 |
| Catch the Light Limited | Information & communication | 2015 |
| Cater Supplies Limited | Wholesale & retail | 2017 |
| CCH Trucking Limited | Transport & logistics | 2019 |
| CCI Scotland Ltd | Health & social care | 2019 |
| CCL Property Limited | Real estate | 2007 |
| Cdmcd Ltd | Health & social care | 2002 |
| CE Henderson Limited | Financial services | 2025 |
| Celebrity (Biggar) Ltd. | Other services | 2011 |
| Central Gates and Barriers Ltd | Construction | 2025 |
| Central Scotland Blinds & Shutters LLP | | 2024 |
| Central Welding Services Ltd | Professional & scientific | 2023 |
| Cespedes Ltd | Transport & logistics | 2025 |
| CF Fencing Contractors Ltd | Construction | 2025 |
| CFM Accountancy Services Ltd | Professional & scientific | 2025 |
| CFO and Transactional Services Ltd | Professional & scientific | 2024 |
| CG Consulting Group Limited | Professional & scientific | 2017 |
| CGS Building Services Ltd | Construction | 2026 |
| CH Tree Works Ltd | Administrative & support | 2023 |
| Chadwick Energy Solutions Ltd | Construction | 2015 |
| Cherrie Commercial BUS and Coach Repairs Ltd | Wholesale & retail | 2024 |
| Chesterhall Parks Farms | | 2000 |
| Cinemactical Ltd | Arts & recreation | 2026 |
| CJ Properties (Lanark) Limited | Real estate | 2023 |
| CJC Bellefield Ltd | Construction | 2025 |
| CK Scotland Limited | Financial services | 2019 |
| CL Drainage & Fencing Ltd | Manufacturing | 2018 |
| CL02 Education Services Limited | Education | 2023 |
| Claigan Fencing & Joinery Ltd | Construction | 2015 |
| Clck Creations Ltd | Other services | 2025 |
| Cleghorn Farm LLP | | 2025 |
| Cleghorn Gutter Cleaning Limited | Administrative & support | 2025 |
| Clipcast Ltd | Information & communication | 2025 |
| CLL Padel Projects Ltd | Construction | 2026 |
| Cloburn Quarry Company Limited | Mining & quarrying | 1985 |
| Close Circuit Solutions Limited | Manufacturing | 2024 |
| Cloud House Productions LLP | | 2023 |
| Clyde Air Conditioning Limited | Construction | 2003 |
| Clyde Hvac Ltd | Construction | 2025 |
| Clyde Valley Customs Ltd. | Wholesale & retail | 2015 |
| Clyde Valley Design Practice Limited | Professional & scientific | 2013 |
| Clyde Valley Orchards Cooperative Limited | Manufacturing | 2015 |
| Clydebuilt Homes Limited | Professional & scientific | 1999 |
| Clydesdale Community Initiatives | Health & social care | 2007 |
| Clydesdale Plumbers Limited | Construction | 2014 |
| Clydesdale Recycling Machinery Limited | Manufacturing | 2023 |
| CM Project Management Services Limited | Professional & scientific | 2025 |
| CMC Design Limited | Construction | 2007 |
| Coach Forward Limited | Professional & scientific | 2022 |
| Code Disciple Limited | Professional & scientific | 2020 |
| Colin Tennant Haulage Limited | Transport & logistics | 2019 |
| Complete Weed Control (Scotland South East) Limited | Administrative & support | 2011 |
| Condiefield Limited | Real estate | 2024 |
| CONNECT2 Consultants Ltd | Professional & scientific | 2012 |
| Connell Management Limited | Administrative & support | 2022 |
| Constant Code Limited | Information & communication | 2024 |
| Construction-Team.Uk Limited | Construction | 2026 |
| Cooper Quality Butcher Limited | Wholesale & retail | 2016 |
| Cornerstone BA Limited | Information & communication | 2009 |
| Corra Linn | Extraterritorial | 2009 |
| Corra Linn Property Limited | Real estate | 2026 |
| Cosmic Grooves C.I.C. | Wholesale & retail | 2025 |