| Cakes With Love (Scotland) Ltd | Wholesale & retail | 2024 |
| Caldercrew Ltd | Wholesale & retail | 2022 |
| Caledon Civils Scotland Ltd | Construction | 2014 |
| Caledonian Rooms Limited | Hospitality | 2021 |
| Care Solutions (Scotland) Limited | Wholesale & retail | 2013 |
| Caribou Consulting Ltd | Information & communication | 2017 |
| Carmasters (Scotland) Limited | Wholesale & retail | 2003 |
| Carron Building Supplies Limited | Wholesale & retail | 1990 |
| Carter's Cafe (Glasgow) Ltd | Hospitality | 2022 |
| Casah Ltd | Other services | 2025 |
| Castle Computer Services Ltd. | Information & communication | 1982 |
| Castlehill Care Home Limited | Health & social care | 2018 |
| CDU Supplies Limited | Construction | 2013 |
| Cecilia Estates Limited | Real estate | 2022 |
| Cesars Bar Limited | Hospitality | 2020 |
| CFS Newham Limited | Financial services | 2006 |
| Chalmers Flooring and Fitting Ltd | Construction | 2025 |
| Charlie's Exterior Cleaning Ltd | Administrative & support | 2025 |
| City Brickwork Scotland Limited | Construction | 2020 |
| City Compressor Services Ltd. | Manufacturing | 2010 |
| Civils and Drainage Supplies (Group) Limited | Financial services | 2017 |
| CJR Couriers Ltd | Transport & logistics | 2025 |
| CJT Property Limited | Real estate | 2023 |
| Claire Pidgeon Design Limited | Information & communication | 2017 |
| Clarkson Accounting Limited | Professional & scientific | 2020 |
| Clarkston Site Services Ltd. | Professional & scientific | 2009 |
| CLM Services and Consultants Ltd | Other services | 2016 |
| Clml Holdings Ltd | Financial services | 2021 |
| Cluan Forestry Limited | Agriculture & fishing | 2025 |
| Clyde Environmental Consultants Ltd | Professional & scientific | 2014 |
| Clyde Services Limited | Professional & scientific | 2018 |
| Clydesdale Pictures Limited | Information & communication | 2014 |
| CMC Motor Services Limited | Wholesale & retail | 2024 |
| Coakley Brothers (Scotland) Limited | Transport & logistics | 2013 |
| Code Masters Limited | Information & communication | 2024 |
| Colbruach Estate Limited | Agriculture & fishing | 2015 |
| Colin Cars Ltd | Transport & logistics | 2024 |
| Collin Properties Ltd | Real estate | 2023 |
| Comfae Electrical Services Ltd | Construction | 2024 |
| Comfae Group Ltd | Construction | 2024 |
| Comms Installations Rail Systems Ltd. | Information & communication | 2008 |
| Complete Energy Controls Ltd. | Other services | 2016 |
| Comsol Energy Limited | Energy | 2015 |
| Concrete Printing Services Limited | Construction | 2022 |
| Consilium U.K. Limited | Information & communication | 1998 |
| Construction FM Scaffold Services Limited | Construction | 2014 |
| Cool CUT Scotland Ltd | Other services | 2025 |
| Corbin Homes Ltd | Real estate | 2023 |
| Cortado Coffee Limited | Wholesale & retail | 2025 |
| Cowley Property Ltd | Real estate | 2024 |
| CP 24 Installations Limited | Construction | 2008 |
| Crawford Group P/S UK Limited | Wholesale & retail | 2021 |
| Creating Commerce Ltd | Wholesale & retail | 2024 |
| Credential Environmental Limited | Water & waste | 2001 |
| Crowns Dental Care Ltd | Health & social care | 2025 |
| Crystals Food Limited | Hospitality | 2023 |
| Crème&Co Ltd | Hospitality | 2023 |
| Cube Property Services (Scotland) Ltd | Real estate | 2025 |
| Cumnock SPV Holdings Limited | Financial services | 1999 |
| Cumnock SPV Limited | Construction | 1998 |
| Curtis Heating & Energy Solutions Ltd | Construction | 2007 |
| Custom Special Luxury Detailing Limited | Manufacturing | 2020 |
| Custom Wraps Scotland Limited | Construction | 2016 |
| D Keep Land Freight Deliveries Limited | Transport & logistics | 2025 |
| D Sharkie Roofing Limited | Construction | 2026 |
| Dalton Distributors Ltd | Wholesale & retail | 2026 |
| Dalziel Converters Limited | Wholesale & retail | 1956 |
| Dalziel Limited | Wholesale & retail | 1977 |
| Danu Holdings Ltd | Real estate | 2024 |
| Dare Beauty Limited | Manufacturing | 2021 |
| David ROY Haulage Ltd | Transport & logistics | 2018 |
| DB Refrigeration Services Ltd | Administrative & support | 2023 |
| DB Retail Limited | Wholesale & retail | 2021 |
| DBS Heating and Plumbing Ltd | Construction | 2022 |
| Dean HJA Properties Ltd | Real estate | 2026 |
| Deenz Shop Local Ltd | Wholesale & retail | 2025 |
| Definitely Plan C (Scotland) Ltd | Wholesale & retail | 2018 |
| Deluxe D'Or Limited | Wholesale & retail | 2025 |
| Derma Natura Ltd | Health & social care | 2026 |
| Derosa Ltd | Wholesale & retail | 2025 |
| Design & Flexo Limited | Professional & scientific | 2003 |
| Design by Naai Ltd | Other services | 2024 |
| Devon Grocers Limited | Real estate | 1999 |
| Deyaar Investments Ltd | Real estate | 2024 |
| DG Financial Ltd | Financial services | 2016 |
| DH Promotions Ltd | Arts & recreation | 2017 |
| Diagnovolt Ltd | Manufacturing | 2026 |
| Division Twenty-One Ltd | Real estate | 2021 |
| DJM Electrical Solutions Ltd | Construction | 2022 |
| DJM Pet & Equestrian Supplies Ltd | Wholesale & retail | 2024 |
| DM FEE Assessors Limited | Professional & scientific | 2024 |
| DMD Group (Scotland) Ltd | Administrative & support | 2024 |
| DMD Industrial Cleaning Limited | Construction | 2014 |
| DMJ Distribution Ltd | Financial services | 2021 |
| Document Data Solutions (UK) Ltd | Wholesale & retail | 2012 |
| Document Data Solutions Ltd | Wholesale & retail | 2007 |
| Document Outsourcing Limited | Manufacturing | 2014 |
| Dog Loverz Limited | Administrative & support | 2021 |
| Dominic Tattoos Ltd | Other services | 2013 |
| Don's Deli Ltd | Hospitality | 2023 |