| Castlegate Property Holdings Ltd | Real estate | 2025 |
| Castlegate Retail Ltd | Wholesale & retail | 2024 |
| Castleglen Decorating Limited | Construction | 2005 |
| Castleglen Homes Limited | Professional & scientific | 2024 |
| Castleglen Investments Limited | Real estate | 2005 |
| Castleglen Residential LLP | | 2008 |
| Castlehill Housing Trust | Health & social care | 1996 |
| Castlehill Solutions Limited | Real estate | 2011 |
| Castora Ltd | Information & communication | 2014 |
| Castrol Group Holdings Limited | Professional & scientific | 1902 |
| Casus Omissus | Professional & scientific | 2010 |
| Casvade Limited | Information & communication | 2026 |
| Catalyst Community Regeneration Company Limited | Real estate | 2019 |
| Catalyst Vineyard Church | Other services | 2009 |
| Catbeam Limited | Professional & scientific | 1985 |
| Cater Capital Investment Ltd | Construction | 2013 |
| Cater Construction Limited | Construction | 2018 |
| Cater Corporation Limited | Real estate | 2009 |
| Cater Design Studio Limited | Professional & scientific | 2022 |
| Cater Group Limited | Real estate | 2019 |
| Cater Property Development Limited | Construction | 2020 |
| Cater Property Investment (Edinburgh) Limited | Real estate | 2021 |
| Cater Property Investment 1 (Aberdeen) Limited | Construction | 2020 |
| Cater Property Investment 1 (Glasgow) Limited | Real estate | 2021 |
| Cater Property Investment 2 (Glasgow) Limited | Professional & scientific | 2022 |
| Cater Property Investment 3 (Aberdeen) Limited | Real estate | 2021 |
| Cater Property Investment 5 (Aberdeen) Limited | Construction | 2022 |
| Cater Property Investment Limited | Construction | 2020 |
| Catering Supplies Partnership LLP | | 2015 |
| Catering Technical Services Limited | Manufacturing | 2010 |
| Caterserver Ltd | Hospitality | 2022 |
| Cathar Properties Ltd. | Other services | 2017 |
| Cathedral Energy Services Ltd | Professional & scientific | 2014 |
| Cathkin Clean Scotland Limited | Other services | 1996 |
| Caupona Ltd | Hospitality | 2018 |
| Cavitas Energy Ltd | Administrative & support | 2012 |
| CB Bar Banff Ltd | Hospitality | 2025 |
| CBR Merch Ltd | Administrative & support | 2022 |
| CC Cost Ltd. | Professional & scientific | 2012 |
| CC Home Developments Ltd | Real estate | 2024 |
| CC Inspection Ltd | Mining & quarrying | 2016 |
| CC Offshore Ltd | Professional & scientific | 2013 |
| CCA Tuning Ltd | Wholesale & retail | 2025 |
| CCM Loch Ness Limited | Real estate | 2014 |
| CCM Property Ltd | Real estate | 2021 |
| Cconix Limited | Information & communication | 2024 |
| CCS Connectivity Limited | Information & communication | 2025 |
| CD Bookkeeping Limited | Professional & scientific | 2024 |
| CD Newco Limited | Information & communication | 2020 |
| CDJ Structural Design Ltd | Professional & scientific | 2024 |
| CDM Electrical Aberdeen Ltd | Construction | 2020 |
| CDM Joinery Ltd | Manufacturing | 2022 |
| CDS Networks Limited | Information & communication | 2003 |
| CE Access Limited | Construction | 2014 |
| CE Resources Limited | Administrative & support | 2019 |
| Ce-D Property Investment Ltd. | Real estate | 2004 |
| Cebo UK Limited | Other services | 1976 |
| Ceegev Engineering Limited | Professional & scientific | 2013 |
| Cegron Care Ltd | Administrative & support | 2022 |
| Cegron Ltd | Administrative & support | 2025 |
| CEL Holdings Limited | Financial services | 2022 |
| Celebrate Aberdeen Ltd | Other services | 2017 |
| Celebration Gift Boxes Ltd | Wholesale & retail | 2019 |
| Celera Support Services Limited | Mining & quarrying | 2011 |
| Celestial Trade Links Ltd | Wholesale & retail | 2026 |
| Celia Media Limited | Information & communication | 2017 |
| Cell Protx Limited | Professional & scientific | 2014 |
| Cellula Robotics (UK) Ltd | Administrative & support | 2015 |
| Cellular Dynamics Limited | Other services | 2026 |
| Celtic Design Consultants Limited | Professional & scientific | 2012 |
| Celtic Forestry Limited | Agriculture & fishing | 2026 |
| Celtic Group Scotland Limited | Financial services | 2026 |
| Celtic Hives Limited | Manufacturing | 2025 |
| Celtic Prints Limited | Manufacturing | 2025 |
| CELTIC3D Ltd | Professional & scientific | 2016 |
| CEN Associates Ltd | Professional & scientific | 2015 |
| Centerset Ltd | Professional & scientific | 2026 |
| Centinno Engineering Ltd | Professional & scientific | 2017 |
| Centrada Ltd | Professional & scientific | 2013 |
| Central Coaches (Aberdeen) Limited | Transport & logistics | 1995 |
| Central Compressor Services Limited | Manufacturing | 1991 |
| Central Garage (Aberdeen) Limited | Administrative & support | 1998 |
| Central Garage Sevices Limited | Wholesale & retail | 2018 |
| Central Lets Limited | Real estate | 2015 |
| Central Scotland Friends of Arms Limited | Health & social care | 1988 |
| Central Taxis (Aberdeen) Limited | Transport & logistics | 1984 |
| Central Thistle Dental Care Limited | Health & social care | 2026 |
| Centrica Finance Limited Partnership | | 2012 |
| Centurial Limited | Hospitality | 2019 |
| Centurion 1 Limited | Administrative & support | 2016 |
| Centurion 2 Limited | Administrative & support | 2016 |
| Centurion 3 Limited | Administrative & support | 2017 |
| Centurion Plumbing Services (Scotland) Ltd. | Construction | 2015 |
| Centurion Subsea Services Limited | Mining & quarrying | 2004 |
| Centurion UK Rentals & Services Holdings Limited | Administrative & support | 2020 |
| CEO Sports Limited | Other services | 2026 |
| Ceoz Project Services Limited | Professional & scientific | 2018 |
| Ceramic Studios Scotland Ltd. | Manufacturing | 2021 |
| Cerberex Security Services Limited | Information & communication | 2024 |
| Cerberus Consultants Limited | Professional & scientific | 2023 |