| C W Cars & Commercials Ltd | Wholesale & retail | 2019 |
| C.J.M. Property & Letting Ltd | Real estate | 2025 |
| C.Kerr Joinery Ltd | Construction | 2026 |
| C.M. Optical Ltd. | Manufacturing | 2008 |
| C.T.T.S. (Management) Limited | Education | 2004 |
| CA Catering Ltd | Hospitality | 2023 |
| CAB Consultancy Ltd | Financial services | 2016 |
| Cable Monkey Electrical Ltd | Construction | 2023 |
| CAFE13 Ltd | Hospitality | 2023 |
| Cahsgas Ltd | Construction | 2020 |
| Cairnglide Limited | Construction | 2014 |
| Cairnsmoir Connections | Education | 2014 |
| Caledonia Party Hire Ltd | Administrative & support | 2025 |
| Caledonia Projects Ltd | Construction | 2023 |
| Cali Dsrt Ltd | Wholesale & retail | 2025 |
| Call Your Courier Ltd | Transport & logistics | 2024 |
| CAM Wallace PT Ltd | Education | 2024 |
| Cameroncavs Ltd | Agriculture & fishing | 2022 |
| Cameroon English-Speaking Social Group C.I.C. | Education | 2025 |
| Camfin Ltd | Professional & scientific | 2017 |
| Campbell Technologies Limited | Information & communication | 2025 |
| Canine Wellness @ Duffy's Ltd | Other services | 2018 |
| Cantley Mcgregor Optical Ltd | Wholesale & retail | 2024 |
| Capital City Cleaning Services Ltd | Water & waste | 2025 |
| Capital Testing Services Ltd. | Professional & scientific | 1996 |
| Capital Waste Services Ltd | Water & waste | 2025 |
| Car Tyre Place Ltd | Other services | 2023 |
| Cardowan Ltd | Hospitality | 2019 |
| Cardrona Hotel, Golf & Country Club Limited | Hospitality | 1998 |
| Cardrona Partnership Limited | Administrative & support | 2009 |
| Cargowala Ltd | Wholesale & retail | 2023 |
| Caring Spirit Group Limited | Health & social care | 2020 |
| Caring Spirit Group Recruitment Ltd | Health & social care | 2022 |
| Casetics Limited | Wholesale & retail | 2021 |
| Castleglen Ventures Limited | Professional & scientific | 2012 |
| Cav's Property Ltd | Real estate | 2025 |
| CBB Commercials Ltd | Manufacturing | 2015 |
| CC Drummond | Construction | 2019 |
| CD Chem Limited | Wholesale & retail | 2012 |
| CDC Offshore Solutions Limited | Professional & scientific | 2015 |
| CDS (Scotland) Limited | Construction | 2015 |
| CDS Connect Ltd | Real estate | 2021 |
| Cecilia Comfort Care Ltd | Health & social care | 2025 |
| Central Deer Services Ltd | Agriculture & fishing | 2023 |
| Central Fleet Solutions Ltd | Manufacturing | 2015 |
| Central Groundworks Limited | Construction | 2021 |
| Central Scotland Heating Ltd | Other services | 2019 |
| Central Woodburners Limited | Construction | 2023 |
| Centre Point Church | Other services | 2005 |
| Certedge Training Ltd | Professional & scientific | 2025 |
| CFM Security Systems Limited | Administrative & support | 2022 |
| Champfleurie Equestrian Limited | Other services | 2013 |
| Champfleurie Training & Events Ltd | Arts & recreation | 2013 |
| Change UN Limited | Professional & scientific | 2026 |
| Chaotic Dogooders Ltd | Information & communication | 2025 |
| Charchie Consultancy Limited | Information & communication | 2022 |
| Chelles Cakes Ltd | Manufacturing | 2025 |
| Chemma Solutions LLP | | 2008 |
| Chenai Consultancy Limited | Information & communication | 2018 |
| Cherry Blossom Cake Design Ltd | Manufacturing | 2018 |
| Chic Aesthetics Services Limited | Health & social care | 2023 |
| Chico's Fast Food Ltd | Hospitality | 2023 |
| Children Support AID Ltd | Wholesale & retail | 2016 |
| Chilled Yellow Bird Ltd | Information & communication | 2026 |
| Chillflo Ltd | Transport & logistics | 2014 |
| Chorus West Lothian CIC | Health & social care | 2025 |
| Chris Scott Property Solutions Ltd | Real estate | 2024 |
| Chrysopolis Engineering Ltd | Professional & scientific | 2020 |
| Cill Mhanach Wellness CIC | Other services | 2017 |
| Circadio Limited | Arts & recreation | 2021 |
| Circumspect Consulting Ltd | Professional & scientific | 2023 |
| City View Blinds Ltd | Construction | 2025 |
| CK Estates Ltd | Real estate | 2016 |
| Clark Associates Ltd | Real estate | 2025 |
| Clarksdale Consulting Limited | Professional & scientific | 2016 |
| Clarus Networks Limited | Information & communication | 2014 |
| Classic Casuals CIC | Wholesale & retail | 2025 |
| Clean Sweep West Lothian Ltd | Administrative & support | 2026 |
| Cleanico Ltd | Administrative & support | 2026 |
| Cleaning Fingers Ltd | Administrative & support | 2024 |
| Clearaway Waste Ltd | Water & waste | 2019 |
| Clic Clothing Ltd | Wholesale & retail | 2020 |
| Client Portals Limited | Information & communication | 2016 |
| Clinical Direct Ltd | Wholesale & retail | 2017 |
| Closecalls Holdings Limited | Real estate | 2026 |
| CLS Garage Services Ltd | Wholesale & retail | 2018 |
| CM Grouting Services Limited | Construction | 2025 |
| CM Steel Buildings Ltd | Construction | 2007 |
| CMB Engineering Ltd | Professional & scientific | 2023 |
| CMG Road Transport Solutions Ltd | Transport & logistics | 2023 |
| Cmkh Services Limited | Administrative & support | 2023 |
| CNB Trading Ltd | Administrative & support | 2024 |
| Coachtraders Ltd | Wholesale & retail | 2010 |
| Cobra Bathrooms Ltd | Construction | 2019 |
| Cobra Cords Ltd | Manufacturing | 2025 |
| Cobra Delivery Services Limited | Transport & logistics | 2024 |
| Cochrane & Williamson Limited | Construction | 2000 |
| Coffee Direct (Scotland) Limited | Wholesale & retail | 1998 |
| Cogent Healthcare Limited | Administrative & support | 2021 |
| Coldoc Inspection Limited | Professional & scientific | 2020 |