| Crimond Well Engineering Ltd | Administrative & support | 2022 |
| Crispy Glen Ltd | Hospitality | 2025 |
| Croft 5 Ltd | Hospitality | 2019 |
| Croftex Corporation L.P. | | 2015 |
| Crofton Express L.P. | | 2015 |
| Croke Investments Limited | Real estate | 2026 |
| Crosbie Catering Limited | Other services | 2020 |
| Cross Hare Investments Limited | Financial services | 2021 |
| Crosstrade Commerce L.P. | | 2015 |
| Crossvale Management LP | | 2015 |
| Crosswire Solutions Ltd | Construction | 2022 |
| Crowe Services Ltd | Other services | 2023 |
| Crowford & Willington LP | | 2016 |
| Crownbrook Invest L.P. | | 2015 |
| Crownex Trans L.P. | | 2015 |
| Crownshire LP | | 2016 |
| Crownwell Experts L.P. | | 2014 |
| Crozier Holdings Ltd | Financial services | 2022 |
| CRR Investments Limited | Financial services | 2023 |
| Crucial Visual Communications Consultancy Limited | Information & communication | 1997 |
| Cruickshank Wealth Management Ltd | Financial services | 2024 |
| Cruivie and Brighouse Limited | Agriculture & fishing | 1974 |
| Crummock (Scotland) Limited | Construction | 1991 |
| Crummock Limited | Construction | 1995 |
| Crush (2023) Limited | Hospitality | 2021 |
| Crushed Mint CIC | Hospitality | 2024 |
| Crust Dundee Limited | Hospitality | 2019 |
| Crustbite Limited | Hospitality | 2025 |
| Cruz&Family Ltd | Transport & logistics | 2024 |
| Cryptoalliance Experts LP | | 2018 |
| Cryptoinvest Business LP | | 2018 |
| Cryptostyle LP | | 2018 |
| Cryptotrade System LP | | 2018 |
| Crystal Trading and Services Limited | Wholesale & retail | 2011 |
| CRYSTALBALL123 Ltd | Transport & logistics | 2020 |
| Crystalline Sales LP | | 2016 |
| Crystalmax L.P. | | 2014 |
| CS Consulting Group (Dundee) Limited | Professional & scientific | 2023 |
| CS Dynamic Engineering Ltd | Professional & scientific | 2020 |
| CS Marine Services Ltd | Other services | 2023 |
| CS Repairs Ltd. | Professional & scientific | 2012 |
| CS Trading Scotland Limited | Wholesale & retail | 2022 |
| CS55 Ltd | Professional & scientific | 2025 |
| CSC Roofing Ltd | Construction | 2025 |
| CSF Holdings (Scotland) Limited | Financial services | 2018 |
| CSM Access Solutions Ltd | Construction | 2025 |
| Csmd Ltd | Other services | 2024 |
| CSP Abnormal Load Escorting Ltd | Transport & logistics | 2012 |
| CT24-OFFSHORE Ltd | Mining & quarrying | 2026 |
| Ctrl ALT Connect Ltd | Administrative & support | 2025 |
| CTS (Dundee) Ltd | Construction | 2012 |
| Ctylr-Company Ltd | Mining & quarrying | 2019 |
| Cuanto Developments Ltd | Construction | 2015 |
| Cuanto Technologies Ltd | Administrative & support | 2019 |
| Cuba Investments Limited | Financial services | 2021 |
| Cube Technology Ltd | Other services | 2019 |
| Cullen Builders Ltd | Construction | 2008 |
| Cult Leather Limited | Professional & scientific | 2026 |
| Cunmont Quarry Limited | Construction | 2010 |
| Curaidh Enterprises Limited | Wholesale & retail | 2019 |
| Curaidh Social Good CIC | Administrative & support | 2020 |
| Curious Minds (Dundee) Limited | Health & social care | 2025 |
| Curr & Dewar Limited | Professional & scientific | 2010 |
| Curriculink Ltd | Education | 2022 |
| Currie of Airdrie Limited | Manufacturing | 1985 |
| Custom Smart Solutions (Electrical) Ltd | Wholesale & retail | 2024 |
| Custom Workshop Ltd | Construction | 2020 |
| Cvuk Ltd | Wholesale & retail | 2025 |
| CW Electrics Scotland Ltd | Construction | 2023 |
| Cwhseq Services Ltd | Construction | 2024 |
| CWT Capital L.P. | | 2014 |
| Cybertron Group Limited | Construction | 2025 |
| Cypex Limited | Manufacturing | 1998 |
| Cyrus' Apartments Ltd | Real estate | 2017 |
| D & BS Properties Limited | Real estate | 2022 |
| D & D Flowers Limited | Wholesale & retail | 2009 |
| D & G Calder Properties Limited | Real estate | 2024 |
| D & H Developments (Dundee) Limited | Construction | 2009 |
| D & L Residential Ltd | Real estate | 2022 |
| D & P Investments Dundee Limited | Real estate | 2018 |
| D Black Electrical Limited | Construction | 2006 |
| D Bond Consultancy Limited | Professional & scientific | 2012 |
| D C Consulting (Scotland) Limited | Professional & scientific | 2000 |
| D C Electrical Engineering Limited | Other services | 2016 |
| D C Well Services Ltd | Manufacturing | 2023 |
| D F Hunter Limited | Information & communication | 2010 |
| D Macmillan Electrics Ltd | Manufacturing | 2025 |
| D P & L Holdings Limited | Professional & scientific | 2014 |
| D R Wallace & Sons Limited | Agriculture & fishing | 2001 |
| D S C Drilling Consultants Ltd. | Professional & scientific | 2006 |
| D S Definite Limited | Hospitality | 2024 |
| D Strang Rope Access Ltd | Construction | 2017 |
| D&A Energy Services Ltd | Households | 2021 |
| D&A Foods Ltd | Manufacturing | 2018 |
| D&A Joiners Ltd | Construction | 2023 |
| D&H General Trading Limited | Wholesale & retail | 2013 |
| D&H Investment Holding Ltd | Financial services | 2025 |
| D&K Solutions Limited | Administrative & support | 2024 |
| D&L Robb Consultants Ltd | Professional & scientific | 2022 |
| D&M Access Ltd | Construction | 2023 |